SERVICE MANUAL

Horizon®
Headwall
System
From Hill-Rom 

Product No. P1000

For Parts Or Technical Assistance man043ra

USA 1-800-445-3720 Canada 1-800-267-2337
 Horizon Headwall System
Service Manual
Revisions

Revision Letter Pages Affected Date

Original Issue March, 1988
A All pages affected September, 1996

man043ra

Horizon Headwall System Service Manual Page i

Revisions

COPYRIGHT 1996 HILL-ROM, INC.

All rights reserved. No part of this text shall be reproduced or transmitted in

any form or by any means, electronic or mechanical, including photocopying,
recording, or by any information or retrieval system without written
permission from HILL-ROM COMPANY, INC. (Hill-Rom).

Second Edition

First Printing 1988

Printed in the USA

Hill-Rom® is a registered trademark of Hill-Rom Company, Inc.

Horizon is a registered trademark of Hill-Rom Company, Inc.

SideCom is a registered trademark of Hill-Rom Company, Inc.

Specialite is a trademark of Hill-Rom Company, Inc.

TM

Teflon is a registered trademark of E. I. du Pont de Nemours and Co.

The information contained in this manual is subject to change without notice.

Hill-Rom makes no commitment to update or keep current, the information
contained in this manual.

The only product warranty intended by Hill-Rom is the express, written

warranty accompanying the bill of sale to the original purchaser. Hill-Rom
makes no other warranty, express or implied, and in particular, makes no
warranty of merchantability or fitness for any particular purpose.

Additional copies of this manual can be obtained from Hill-Rom.

Page ii Horizon Headwall System Service Manual

 Table of Contents
Chapter 1: Introduction
Purpose of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 3
Who Should Use this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 3
Organization of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 3
Chapter 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 3
Chapter 2. Troubleshooting Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 3
Chapter 3. Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 3
Chapter 4. Removal, Replacement, and Adjustment Procedures . . . . . . . . . . . 1 - 3
Chapter 5. Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 4
Chapter 6. General Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 4
Chapter 7. Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 4
Typographical Conventions Used in this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 5
Introduction to the Horizon Headwall System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 6
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 6
System Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 7
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 8
UL Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 11
Model Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 12
Safety Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 13
Warning and Caution Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 14

Chapter 2: Troubleshooting Procedures

Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 3
Initial Actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 3
Function Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 4
Final Actions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 5
Bed Receptacle or Indicator Is Inoperative. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 6
Chart Light Does Not Come On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 7

Horizon® Headwall System Service Manual Page iii

Table of Contents

Night Light Does Not Come On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 8

Dimmer Switch Will Not Operate The Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 9
Line Voltage Switch Will Not Operate Attached Device. . . . . . . . . . . . . . . . . . . 2 - 10
Duplex Electrical Receptacle—Standard/Emergency Is Inoperative . . . . . . . . . . 2 - 12
Indirect/Read Light (Low Voltage Controller) Will Not Function. . . . . . . . . . . . 2 - 13
Timed Light Switch and Toggle Switch Do Not Operate Properly . . . . . . . . . . . 2 - 15
Circuit Breaker Is Inoperative. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 16
Specialite Patient Light Provision (Standard Power) Does Not Come On. . . . . . 2 - 17

Chapter 3: Theory of Operation

Voltage Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 3
Electrical Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 5
Specialite Patient Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 8
Low Voltage Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 9
Chase Theory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 10
Chase. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 10
Medical Gases. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 10
Standard Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 10
Emergency Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 10
Communications/Low Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 10

Chapter 4: Removal, Replacement, and Adjustment Procedures

Duplex Receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 3
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 3
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 4
Bed Receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 6
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 6
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 7
Single Receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 8
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 8
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 9
Dimmer Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 10

Page iv Horizon® Headwall System Service Manual

 Table of Contents

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 10
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 11
Line Voltage Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 12
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 12
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 13
Ground Jack Receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 14
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 14
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 15
Telephone Receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 16
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 16
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 17
Night Light or Chart Light Bulb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 18
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 18
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 19
Chart Light Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 20
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 20
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 21
Circuit Breaker (Standard/Emergency Power) . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 22
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 22
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 23
Low Voltage Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 24
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 24
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 25
Timed Light Switch and Toggle Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 27
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 27
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 28

Chapter 5: Parts List

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 3
Ordering Service Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 5
Exchange Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 6

Horizon® Headwall System Service Manual Page v

Table of Contents

In-Warranty Exchanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 6
Out-of-Warranty Exchanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 6
Recommended Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 7
Chase Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 8
Chase Assembly (Isolated Power) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 10
Chase Panels and Trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 12
Light Raceway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 14
Gas Raceway. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 16
Bottom Raceway. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 18
Raceway Fascia and Gas Excluder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 22
Chase Breaker Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 24
Timed Light Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 28
Specialite Patient Light Provision (Standard/Emergency) . . . . . . . . . . . . . . . . . . 5 - 30
Nurse Call Backbox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 32
Chaseless Raceway—Standard and Isolated Power . . . . . . . . . . . . . . . . . . . . . . . 5 - 34
TeleMate/Phone Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 36
Duplex Outlet Receptacles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 38
Single Outlet Receptacles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 40
Line Voltage Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 42
Ground Receptacles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 44
Night and Chart Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 46
Hose Panels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 48
Manifold Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 52
Low Voltage Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 54
SideCom Communication System Receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 56
Low Voltage Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 58

Chapter 6: General Procedures

Cleaning and Care. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 3
General Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 3
Steam Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 3

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 Table of Contents

Disinfection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 3
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 4
Preventive Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 4
Preventive Maintenance Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 6
Tool and Supply Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 7
Line Isolation Monitor Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 7
Installation and Post Installation Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 7

Chapter 7: Accessories

Horizon® Headwall System Service Manual Page vii

Table of Contents

NOTES:

Page viii Horizon® Headwall System Service Manual

 1
Chapter 1
Introduction

Chapter Contents

Purpose of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 3

Who Should Use this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 3
Organization of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 3
Chapter 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 3
Chapter 2. Troubleshooting Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 3
Chapter 3. Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 3
Chapter 4. Removal, Replacement, and Adjustment Procedures . . . . . . . . . . . 1 - 3
Chapter 5. Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 4
Chapter 6. General Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 4
Chapter 7. Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 4
Typographical Conventions Used in this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 5
Introduction to the Horizon Headwall System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 6
General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 6
System Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 7
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 8
UL Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 11
Model Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 12
Safety Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 13
Warning and Caution Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 - 14

Horizon Headwall System Service Manual Page 1 - 1

1 Chapter 1: Introduction

NOTES:

Page 1 - 2 Horizon Headwall System Service Manual

 Purpose of this Manual
Chapter 1: Introduction
1
Purpose of this Manual
This manual provides the information required for Hill-Rom Horizon
Headwall System normal operation and maintenance. It also includes a
complete parts list for ordering replacement components. The parts list is
located in chapter 5.

Who Should Use this Manual

This manual is intended to be used by facility authorized maintenance
personnel only. Failure to observe this restriction can result in serious damage
to material and/or severe injury to people.

Organization of this Manual

This manual contains seven chapters.

Chapter 1. Introduction
You are currently reading chapter 1. Chapter 1 is an introduction to this manual
and to the features and capabilities of the Horizon Headwall System. The
operational specifications for the unit, label location, and safety tips are also
included.

Chapter 2. Troubleshooting Procedures

This chapter is used to identify a suspected problem. It is used to isolate an
identified problem to a faulty component or subassembly. Repair Analysis
Procedures (RAPs) have been developed for most problems.

Chapter 3. Theory of Operation

This chapter provides operational description of major subsystems in the
Horizon Headwall System. This chapter also contains illustrations that display
the location of plugs/jacks and distribution diagrams for AC/DC power.

Chapter 4. Removal, Replacement, and Adjustment

Procedures
This chapter contains the instructions for repair/adjustments of the replaceable
parts in the Horizon Headwall System.

Horizon Headwall System Service Manual Page 1 - 3

 Organization of this Manual

1 Chapter 1: Introduction

Chapter 5. Parts List

Chapter 5 contains Hill-Rom’s warranty, replacement part ordering procedure,
exchange policy, illustrated parts lists, and general service information.

Chapter 6. General Procedures

This chapter contains general care and preventive maintenance procedures. It
also contains a list of tools required for maintenance and repair.

Chapter 7. Accessories
This revision of the Horizon Headwall System Service Manual does not
contain any additional information for accessories.

Page 1 - 4 Horizon Headwall System Service Manual

 Typographical Conventions Used in this Manual
Chapter 1: Introduction
1
Typographical Conventions Used in this Manual
The manual contains different typographical conventions designed to enhance
readability and understanding of its content.
• Standard text—used for standard text throughout the manual.
• Boldface text—emphasizes a work or phrase.
• NOTE:—sets apart special information or important instruction
clarification.
• The symbol below highlights a WARNING or CAUTION:

Figure 1-1. Warning and Caution Symbol

– A WARNING identifies situations or actions that may affect

patient or user safety. Disregarding a warning could result in
patient or user injury.
– A CAUTION points out special procedures or precautions that
service personnel must follow to avoid equipment damage.
• The symbol below highlights an electrical shock hazard WARNING:

Figure 1-2. Electrical Shock Hazard Warning

Horizon Headwall System Service Manual Page 1 - 5

 Introduction to the Horizon Headwall System

1 Chapter 1: Introduction

Introduction to the Horizon Headwall System

General Information

Figure 1-3. Horizon Headwall System

Ceiling line

Vertical
chase
Light raceway

Gas raceway

Movable
gas
Gas outlet
hose
panel

Bottom raceway
Floor line

m043a027

For over 30 years, Hill-Rom has been producing products that aid in the
efficient care of patients and reduce nursing burdens for many facets of
healthcare. Today, with improvements in technology and changes in the way
healthcare is delivered, Hill-Rom is designing products to continuously meet
the changing needs of the healthcare industry.

Page 1 - 6 Horizon Headwall System Service Manual

 Introduction to the Horizon Headwall System
Chapter 1: Introduction

The Horizon Headwall System of flexible services is the solution to changes in

1
patient acuity levels, hospital occupancy rate, and technology. This flexibility
is demonstrated in the ability of the Horizon Headwall System to quickly add
or relocate medical gas services on the raceway as various needs arise.

The Horizon Headwall System eliminates the cluttered look of current

headwalls and offers a clean, contemporary environment. The unit accepts new
equipment that may not have been planned for and provides physical support
of secondary equipment, brackets, shelves, and other patient headwall-related
items.

The Horizon Headwall System consists of a vertical chase for delivery of

power and gas services from the ceiling to the raceways. The raceways carry
power lines and support auxiliary equipment. The area under the gas raceway
contains the piping for medical gases.

System Features
The Horizon Headwall System maintains flexibility in hospital room services,
quickly and at a low cost. The system offers:
• Low voltage power service
• Normal power service
• Emergency power service
• Multiple variable gas outlets
• Flexible storage cabinetry
• Reduced clutter around the bed and placement of equipment at convenient
working levels for staff
• Variable total length to meet requirements of larger open areas
• Flexibility for the hospital room to be upgraded to a more sophisticated
level of care
• Adaptability for new services without the need to break into walls or
reconstruct the room

Horizon Headwall System Service Manual Page 1 - 7

 Specifications

1 Chapter 1: Introduction

Specifications
The following tables contain specifications of the Horizon Headwall System.

Table 1-1. Chase Specifications

Feature Dimension
Depth 4 1/2" (114 mm)
Width 13" (330 mm)
Height Adjustable from ceiling to 10"
(254 mm) above floor

Table 1-2. Raceway Specifications (available to the left or right

side of chase)

Feature Dimension
Depth 2 9/16" (65 mm)
Width 36", 48", 60", 84", 96", and
108", variable up to 336"
(914 mm, 1219 mm, 1524 mm,
2133 mm, 2438 mm,
2743 mm, and 8534 mm)
Height 6 1/2" (165 mm)
Panel depth 3/4" (19.1 mm)

Page 1 - 8 Horizon Headwall System Service Manual

 Specifications

Table 1-3. Electrical Specifications

Chapter 1: Introduction
1
Description Specification
Voltage 109 - 125V AC at 50 - 60Hz
Phases 1 and 3
Wire–standard and emergency power Type AWT/MTW
Stranded copper
600V
Flame retardant
Heat resistant
Wire–power circuits/lighting circuits 12 AWG (color coded per wir-
ing diagram)
Wire–ground conductor 12 AWG
Stranded copper
Green
Wire–raceway ground conductor 10 AWG to terminate at the
service chase ground bus
Grounding and bonding Each receptacle must have a
grounding conductor termi-
nated at the raceway ground-
ing post next to the service
chase.

Table 1-4. Receptacle Specifications

Description Specification
Hospital grade receptacle Three pole
Three wire grounded
Hospital grade is indicated by
green dot on the face of the
receptacle.
Single phase 2 wires plus ground
Three phase 3 wires plus ground
Voltage 125V AC
Amperage 20 amp
Receptacle color Ivory = standard power duplex
Red = emergency power
duplex (critical branch)
Black = locking single
Orange = isolated ground

Horizon Headwall System Service Manual Page 1 - 9

 Specifications

1 Chapter 1: Introduction

Table 1-5. Medical Gas/Vacuum Manifold

Description Specification
Check valves DISS indexed
Copper tubing ASTM-B-88
Inner diameter–oxygen and air tubing 1/2" (12.7 mm)
Inner diameter–vacuum tubing 3/4" (19.1 mm)
Brazing Silver alloy
o o
Minimum melting point–brazing 1000 F (538 C)
Pressure test 150 psi (1034.2 kPa)
Pressure test certification MFPA-56F and or contractual
documents

Page 1 - 10 Horizon Headwall System Service Manual

 Specifications

Table 1-6. Optional Equipment and Devices

Chapter 1: Introduction
1
Description Specification
Chart light Switched
7 watt
120V bulb
Night light Switched (SPST or 3-way) or
continuous burn
7 watt
120V bulb
TeleMate provision
TM Standard telephone jack
Code blue emergency call button Contractor provides name and
number of code blue equip-
ment to be used.
Nurse call station 2, 5, or 8 gang opening
Contractor supplies name and
number of equipment to be
used.
STAT Clock/Timer (967B) provision (connec- Black plastic housing
tor on back) 9 1/4" (235 mm) wide
4 3/4" (121 mm) high
4 1/2" (114 mm) deep
Chase-mounted low voltage controller 120V AC
240V AC
277V AC
Switches Quiet action
120V AC 15 amp
120V AC 20 amp
Framed rocker
(SPST or 3-way)

UL Classification

Horizon Headwall System

Sections and units UL category = QQXX

Isolated power wall modules UL category = KEXS

Horizon Headwall System Service Manual Page 1 - 11

 Model Identification

1 Chapter 1: Introduction

Model Identification

Table 1-7. Model Identification

Model
Number Description
P1000 Horizon Headwall System

Page 1 - 12 Horizon Headwall System Service Manual

 Safety Tips
Chapter 1: Introduction
1
Safety Tips

SHOCK HAZARD:
Locate the involved power supply circuit breaker panel. Set the involved
circuit breaker (A) to OFF (see figure 2-1 on page 2-11). Failure to
follow this procedure could cause serious injury and damage to the
equipment.

SHOCK HAZARD:
Locate the involved building standard/emergency circuit breaker panel.
Set the involved circuit breaker (A) to OFF (see figure 2-1 on page
2-11). Lock out and tag out the breaker. Failure to follow this procedure
could cause serious injury and damage to the equipment.

SHOCK HAZARD:
Use care when checking live voltages. Do not touch live terminals,
wires, and ground. Failure to use caution will cause serious electrical
shock injury.

WARNING:
Only facility authorized maintenance personnel should troubleshoot the
Horizon Headwall System.

WARNING:
When following these procedures you must adhere to the “Infection
Control Policies and Procedures” outlined in the Exposure Control Plan.
Not following these procedures could cause the spread of infection.

CAUTION:
Do not use harsh cleaners, solvents, or detergents.

Horizon Headwall System Service Manual Page 1 - 13

 Warning and Caution Labels

1 Chapter 1: Introduction

Warning and Caution Labels

Figure 1-4. Warning and Caution Labels

m043a042

m043a048

m043a047

Page 1 - 14 Horizon Headwall System Service Manual

 Warning and Caution Labels
Chapter 1: Introduction
1

m043a049

Horizon Headwall System Service Manual Page 1 - 15

 Warning and Caution Labels

1 Chapter 1: Introduction

NOTES:

Page 1 - 16 Horizon Headwall System Service Manual

 Chapter 2
Troubleshooting
Procedures 2
Chapter Contents

Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 3
Initial Actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 3
Function Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 4
Final Actions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 5
Bed Receptacle or Indicator Is Inoperative. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 6
Chart Light Does Not Come On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 7
Night Light Does Not Come On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 8
Dimmer Switch Will Not Operate The Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 9
Line Voltage Switch Will Not Operate Attached Device. . . . . . . . . . . . . . . . . . . 2 - 10
Duplex Electrical Receptacle—Standard/Emergency Is Inoperative . . . . . . . . . . 2 - 12
Indirect/Read Light (Low Voltage Controller) Will Not Function. . . . . . . . . . . . 2 - 13
Timed Light Switch and Toggle Switch Do Not Operate Properly . . . . . . . . . . . 2 - 15
Circuit Breaker Is Inoperative. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 - 16
Specialite Patient Light Provision (Standard Power) Does Not Come On. . . . . . 2 - 17

Horizon® Headwall System Service Manual Page 2 - 1

 Chapter 2: Troubleshooting Procedures

NOTES:

Page 2 - 2 Horizon® Headwall System Service Manual

 Getting Started
Chapter 2: Troubleshooting Procedures

Getting Started
Begin each procedure in this chapter with step 1. Follow the sequence outlined
(each step assumes the previous steps are correct). Each step is the normal
operational event of the product and can be confirmed by answering Y (yes) or
N (no) to the statement. Your response will lead to another step in the
procedure, a repair analysis procedure (RAP), or a component replacement. If
more than one component is listed, replace them in the order given.
2
Start with Initial Actions to begin gathering information about the problem.

Perform the Function Checks to isolate/identify a problem and to verify repair

after completing each corrective action (replacing or adjusting a part, seating a
connector, etc.).

Perform the Final Actions after the Function Checks to verify the repair.

If troubleshooting procedures do not isolate the problem, call Hill-Rom

Technical Support at (800) 445-3720 for assistance.

WARNING:
Only facility authorized maintenance personnel should troubleshoot the
Horizon Headwall System.

Initial Actions
Initial Actions are used to gather information from the operators concerning
problems with the Horizon Headwall System. Note symptoms or other
information concerning the problem that the operator identifies. This
information helps identify the probable cause.

1. Someone who can explain the problem is available.

Yes No
↓ → Go to “Function Checks” on page 2-4.

2. Ask that person to demonstrate or explain the problem. The problem can be
duplicated.
Yes No
↓ → Go to “Function Checks” on page 2-4.

Horizon® Headwall System Service Manual Page 2 - 3

 Function Checks
Chapter 2: Troubleshooting Procedures

3. The problem is a result of improper operator action.

Yes No
↓ → Go to “Function Checks” on page 2-4.

4. Instruct the operators to refer to the procedures in the Horizon Headwall

System In-Service Manual. Perform the “Function Checks” on page 2-4 to
2 ensure proper operation of the Horizon Headwall System.

Function Checks
1. Initial actions have been performed.
Yes No
↓ → Go to “Initial Actions” on page 2-3.

2. The hospital unit is plugged into an appropriate power source, and the
switch is turned on.
Yes No
↓ → Plug the unit into an appropriate power source, and turn on the
switch.

3. The bed receptacle or indicator is operative.

Yes No
↓ → Go to RAP 2.1 on page 2-6.

4. The chart light is operational.

Yes No
↓ → Go to RAP 2.2 on page 2-7.

5. The timed light switch operates correctly.

Yes No
↓ → Go to RAP 2.8 on page 2-15.

6. The dimmer switch is operational.

Yes No
↓ → Go to RAP 2.4 on page 2-9.

7. The standard/emergency duplex electrical receptacle is operative.

Yes No
↓ → Go to RAP 2.6 on page 2-12.

8. The indirect and read light operate correctly.

Yes No
↓ → Go to RAP 2.7 on page 2-13.

Page 2 - 4 Horizon® Headwall System Service Manual

 Final Actions
Chapter 2: Troubleshooting Procedures

Final Actions
1. Complete the required preventive maintenance procedures. See
“Preventive Maintenance Schedule” on page 6-4.

2. Complete all required administrative tasks.

2

Horizon® Headwall System Service Manual Page 2 - 5

 2.1 Bed Receptacle or Indicator Is Inoperative
Chapter 2: Troubleshooting Procedures

2.1 Bed Receptacle or Indicator Is Inoperative

1. The building circuit breaker is in the ON position.
Yes No
↓ → Reset the circuit breaker to ON.

2 2. The Horizon Headwall System circuit breaker is in the ON position.

Yes No
↓ → Reset the circuit breaker to ON.

3. The Specialite fixture moves freely when lifted from the bottom.
Yes No
↓ → Go to step 6.

4. Voltage is present at the purple wire connector of the Specialite pigtail on

the gas raceway.
Yes No
↓ → Go to Specialite Manual Man046.

5. The voltage reads good, on a low impedance voltage tester, between the
short slot and the ground terminal of the receptacle.
Yes No
↓ → Go to step 8.

6. Voltage is present at the terminals on the receptacle.

Yes No
↓ → Go to step 7.

7. Replace the bed receptacle. See “Bed Receptacle” on page 4-6.

8. The voltage reads good, on a low impedance voltage tester, between the
short slot and the long slot in the receptacle.
Yes No
↓ → Go to step 9.

9. Voltage is present at the terminals on the receptacle.

Yes No
↓ → Go to step 11.

10. Replace the receptacle. See “Bed Receptacle” on page 4-6.

11. Voltage is present at the circuit breaker.

12. Go to “Final Actions” on page 2-5.

Page 2 - 6 Horizon® Headwall System Service Manual

 2.2 Chart Light Does Not Come On
Chapter 2: Troubleshooting Procedures

2.2 Chart Light Does Not Come On

1. The building circuit breaker is in the ON position.
Yes No
↓ → Reset the circuit breaker to the ON position.

2. The Horizon Headwall System circuit breaker is in the ON position.

Yes No
2
↓ → Reset the circuit breaker to the ON position.

3. The chart light is operative.

Yes No
↓ → Replace the chart light bulb. See “Night Light or Chart Light
Bulb” on page 4-18. If this solves the problem, go to step 4.
Otherwise, proceed to step 5.

4. Go to “Final Actions” on page 2-5.

5. Check for continuity in the chart light switch as follows:

a. Set the involved circuit breaker to the OFF position.
b. Remove the chart light switch from the gas raceway. See “Chart Light
Switch” on page 4-20.
c. Disconnect the wires, and set the switch to ON.

6. The ohmmeter reads continuity between the switch terminals.

Yes No
↓ → Replace the chart light switch. See “Chart Light Switch” on page
4-20.

7. Go to “Final Actions” on page 2-5.

Horizon® Headwall System Service Manual Page 2 - 7

 2.3 Night Light Does Not Come On
Chapter 2: Troubleshooting Procedures

2.3 Night Light Does Not Come On

1. The building circuit breaker is in the ON position.
Yes No
↓ → Reset the circuit breaker to the ON position.

2 2. The Horizon Headwall System circuit breaker is in the ON position.

Yes No
↓ → Reset the circuit breaker to the ON position.

3. The night light is operative.

Yes No
↓ → Go to step 4.

4. Voltage is present at the lamp socket.

Yes No
↓ → Go to step 6.

5. Replace the night light bulb. See “Night Light or Chart Light Bulb” on
page 4-18.

SHOCK HAZARD:
Use care when checking live voltages. Do not touch live terminals,
wires, and ground. Failure to use caution will cause serious electrical
shock injury.

6. Voltage is present at the lug and terminal of the circuit breaker.

Yes No
↓ → Go to “Circuit Breaker Is Inoperative” on page 2-16.

7. Continuity is present in the wires between the circuit breaker and the night
light.
Yes No
↓ → Repair or replace the wiring.

8. Go to “Final Actions” on page 2-5.

Page 2 - 8 Horizon® Headwall System Service Manual

 2.4 Dimmer Switch Will Not Operate The Light
Chapter 2: Troubleshooting Procedures

2.4 Dimmer Switch Will Not Operate The Light

1. The building circuit breaker is in the ON position.
Yes No
↓ → Reset the circuit breaker to the ON position.

2. The Horizon Headwall System circuit breaker is in the ON position.

Yes No
2
↓ → Reset the circuit breaker to the ON position.

3. Position the dimmer switch in full clockwise and back to full

counterclockwise direction. The light brightens/dims.
Yes No
↓ → Go to step 4.

SHOCK HAZARD:
Use care when checking for live voltages. Do not touch live terminals,
wires, and ground. Failure to use caution will cause serious electrical
shock injury.

4. Voltage is present at the terminal screws on the dimmer switch.

Yes No
↓ → Go to step 6.

5. Replace the dimmer switch. See “Dimmer Switch” on page 4-10.

6. Voltage is present at the circuit breaker.

Yes No
↓ → Go to “Circuit Breaker Is Inoperative” on page 2-16.

7. Continuity is present in the wires between the circuit breaker and the
dimmer switch.
Yes No
↓ → Repair or replace the wires.

8. Go to “Final Actions” on page 2-5.

Horizon® Headwall System Service Manual Page 2 - 9

 2.5 Line Voltage Switch Will Not Operate Attached Device
Chapter 2: Troubleshooting Procedures

2.5 Line Voltage Switch Will Not Operate Attached Device

SHOCK HAZARD:
Use care when checking live voltages. Do not touch live terminals,
wires, and ground. Failure to use caution will cause serious electrical
2 shock injury.

1. Check for voltage at the line voltage switch terminals as follows:

a. Remove the line voltage switch from the raceway. See “Line Voltage
Switch” on page 4-12.
b. Voltage is present at the terminals on the switch (before the wires are
removed).
Yes No
↓ → Go to step 5.

2. Check for continuity in the line voltage switch as follows:

SHOCK HAZARD:
Locate the involved building standard/emergency circuit breaker panel.
Set the involved circuit breaker (A) to OFF (see figure 2-1 on page
2-11). Lock out and tag out the breaker. Failure to follow this procedure
could cause serious injury and damage to the equipment.
a. Set the Horizon Headwall System circuit breaker (lower panel) to the
OFF position.
b. Remove the wires from the switch terminals.
c. Place the removed switch in the ON position.

3. The line voltage switch has continuity between the power terminals.
Yes No
↓ → Replace the switch with a new switch. See “Line Voltage
Switch” on page 4-12.

4. Go to “Final Actions” on page 2-5.

5. Reset the applicable Horizon Headwall System circuit breaker back to the
ON position.

6. Check for voltage at the circuit breaker as follows:

a. Remove the circuit breaker. See “Circuit Breaker (Standard/Emergency
Power)” on page 4-22.

Page 2 - 10 Horizon® Headwall System Service Manual

 2.5 Line Voltage Switch Will Not Operate Attached Device
Chapter 2: Troubleshooting Procedures

b. Leave the wires connected to the circuit breaker.

SHOCK HAZARD:
Use care when checking live voltages. Do not touch live terminals,
wires, and ground. Failure to use caution will cause serious electrical
shock injury.

7. Voltage is present between the lug and terminal of the circuit breaker.
2
Yes No
↓ → Go to “Circuit Breaker Is Inoperative” on page 2-16.

8. Continuity is present in the wires between the circuit breaker and the line
voltage switch.
Yes No
↓ → Repair or replace the wiring.

9. Go to “Final Actions” on page 2-5.

Figure 2-1. Standard/Emergency Circuit Breaker Box

m043a028

Horizon® Headwall System Service Manual Page 2 - 11

 2.6 Duplex Electrical Receptacle—Standard/Emergency Is Inoperative
Chapter 2: Troubleshooting Procedures

2.6 Duplex Electrical Receptacle—Standard/Emergency Is

Inoperative

SHOCK HAZARD:
Use care when checking live voltages. Do not touch live terminals,
2 wires, and ground. Failure to use caution will cause serious electrical
shock injury.

1. The building circuit breaker is in the ON position.

Yes No
↓ → Reset the circuit breaker to the ON position.

2. The Horizon Headwall System circuit breaker is in the ON position.

Yes No
↓ → Reset the circuit breaker to the ON position.

3. The receptacle is working.

Yes No
↓ → Go to step 5.

4. Go to “Final Actions” on page 2-5.

5. The voltage reads good, on a low impedance voltage tester, between the
short slot and the ground terminal. Also, the voltage reads good between
the short slot and long slot.
Yes No
↓ → Go to step 7.

6. Go to “Final Actions” on page 2-5.

7. Voltage is present at the terminals on the receptacle.

Yes No
↓ → Go to “Circuit Breaker Is Inoperative” on page 2-16.

8. Replace the receptacle. See “Duplex Receptacle” on page 4-3.

9. Go to “Final Actions” on page 2-5.

Page 2 - 12 Horizon® Headwall System Service Manual

 2.7 Indirect/Read Light (Low Voltage Controller) Will Not Function
Chapter 2: Troubleshooting Procedures

2.7 Indirect/Read Light (Low Voltage Controller) Will Not Function

1. The involved building circuit breaker is in the ON position.
Yes No
↓ → Reset the circuit breaker to the ON position.

2. The involved Horizon Headwall System circuit breaker (lower panel) is in

the ON position.
2
Yes No
↓ → Reset the circuit breaker to ON.

3. Press the indirect/read light switch momentarily, and release it. The
indirect light turns ON.
Yes No
↓ → Go to step 6.

4. Press the indirect/read light switch momentarily, and release it. The read
light turns ON, and the indirect light turns OFF.
Yes No
↓ → Go to step 10.

5. Go to “Final Actions” on page 2-5.

6. The voltmeter reads good, on a low impedance voltage tester, from the
yellow wire to the ground (see figure 2-2 on page 2-14).
Yes No
↓ → Go to step 8.

7. Go to “Final Actions” on page 2-5.

8. The voltmeter reads 11V DC from the red wire to the ground.
Yes No
↓ → Replace the low voltage controller. See “Low Voltage
Controller” on page 4-24.

9. The problem is in the indirect/read light switch. Refer to the Specialite

Patient Light Service Manual.

10. The voltmeter reads good, on a low impedance voltage tester, from the
white wire to the ground.
Yes No
↓ → Go to step 12.

11. The low voltage controller is good.

Horizon® Headwall System Service Manual Page 2 - 13

 2.7 Indirect/Read Light (Low Voltage Controller) Will Not Function
Chapter 2: Troubleshooting Procedures

12. The voltmeter reads 11V DC from the blue wire to the ground.
Yes No
↓ → Replace the low voltage controller (see figure 4-12 on page
4-25).

13. The problem is in the indirect/read light switch. Refer to the Specialite
2 Patient Light Service Manual.

Figure 2-2. Low Voltage Control Circuits

m043a040

Page 2 - 14 Horizon® Headwall System Service Manual

 2.8 Timed Light Switch and Toggle Switch Do Not Operate Properly
Chapter 2: Troubleshooting Procedures

2.8 Timed Light Switch and Toggle Switch Do Not Operate

Properly
1. The building circuit breaker is in the ON position.
Yes No
↓ → Reset the circuit breaker to ON.

2. The Horizon Headwall System circuit breaker is in the ON position.

2
Yes No
↓ → Reset the circuit breaker to ON.

3. Place the toggle switch in the ON position. The lights turn ON.
Yes No
↓ → Replace the toggle switch. See “Timed Light Switch and Toggle
Switch” on page 4-27.

4. Place the toggle switch in the OFF position. The lights turn OFF at the
setting of the timer (0–15 minutes).
Yes No
↓ → Replace the timed light switch. See “Timed Light Switch and
Toggle Switch” on page 4-27.

5. Go to “Final Actions” on page 2-5.

Horizon® Headwall System Service Manual Page 2 - 15

 2.9 Circuit Breaker Is Inoperative
Chapter 2: Troubleshooting Procedures

2.9 Circuit Breaker Is Inoperative

1. The involved building circuit breaker is in the ON position.
Yes No
↓ → Reset the breaker to the ON position.

2 2. The Horizon Headwall System circuit breaker is in the ON position.

Yes No
↓ → Reset the breaker to the ON position.

3. The circuit breaker is operative.

Yes No
↓ → Go to step 5.

4. Go to “Final Actions” on page 2-5.

SHOCK HAZARD:
Locate the involved building standard/emergency circuit breaker panel.
Set the involved circuit breaker (A) to OFF (see figure 2-1 on page
2-11). Lock out and tag out the breaker. Failure to follow this procedure
could cause serious injury and damage to the equipment.

5. Check for continuity in the circuit breaker as follows:

a. Set the involved building circuit breaker to the OFF position.
b. Remove the Horizon Headwall System circuit breaker. See “Circuit
Breaker (Standard/Emergency Power)” on page 4-22.
c. Continuity exists between each the breaker lug and the breaker
terminal.
Yes No
↓ → Replace the circuit breaker with a new circuit breaker.

d. Continuity exists in the wires from the circuit breaker to the equipment.
Yes No
↓ → Replace or repair the wires from the circuit breaker to the
equipment.

6. Go to “Final Actions” on page 2-5.

Page 2 - 16 Horizon® Headwall System Service Manual

 2.10 Specialite Patient Light Provision (Standard Power) Does Not Come On
Chapter 2: Troubleshooting Procedures

2.10 Specialite Patient Light Provision (Standard Power) Does Not

Come On
1. The involved building circuit breaker is the ON position.
Yes No
↓ → Reset the circuit breaker to ON.

2. The involved Horizon Headwall System circuit breaker is in the ON

2
position.
Yes No
↓ → Reset the circuit breaker to the ON position.

3. The light is operational.

Yes No
↓ → Go to step 5.

4. Go to “Final Actions” on page 2-5.

SHOCK HAZARD:
Locate the involved power supply circuit breaker panel. Set the involved
circuit breaker (A) to OFF (see figure 2-1 on page 2-11). Failure to
follow this procedure could cause serious injury and damage to the
equipment.

5. Test for continuity in the Specialite Patient Light provision wires as

follows:
a. Locate and set the involved Horizon Headwall System circuit breaker
to the OFF position.
b. Disconnect the Specialite Patient Light connector at the upper raceway.
c. Disconnect the Specialite Patient Light connector at the J-box on the
hospital bed.

6. Continuity exists in the black, pink, and yellow wires.

Yes No
↓ → Replace or repair the wire and or connections as needed.

7. Refer to the Specialite Service Manual to diagnose and repair the Specialite
Patient Light.

8. Refer to the SideCom Communication System Service Manual to diagnose

and repair that system.

Horizon® Headwall System Service Manual Page 2 - 17

 2.10 Specialite Patient Light Provision (Standard Power) Does Not Come On
Chapter 2: Troubleshooting Procedures

NOTES:

Page 2 - 18 Horizon® Headwall System Service Manual

 Chapter 3
Theory of Operation

Chapter Contents

Voltage Distribution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 3
Electrical Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 5
Specialite Patient Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 8
Low Voltage Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 9
3
Chase Theory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 10
Chase. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 10
Medical Gases. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 10
Standard Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 10
Emergency Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 10
Communications/Low Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 - 10

Horizon® Headwall System Service Manual Page 3 - 1

 Chapter 3: Theory of Operation

NOTES:

Page 3 - 2 Horizon® Headwall System Service Manual

 Voltage Distribution
Chapter 3: Theory of Operation

Voltage Distribution

Figure 3-1. AC Voltage Distribution to Breaker Panels

Communication compartment
Standard/emergency power
compartment
Emergency/standard power
compartment

Reference ground bar

Terminal block (optional)

6 AWG main feed 10 AWG ground

3
Light raceway

Emergency/standard
power breaker panel

Gas raceway

Standard/emergency 6 AWG reference ground

power breaker panel

Bottom raceway

Vertical chase
Ground bar
10 AWG ground

m043a025

Horizon® Headwall System Service Manual Page 3 - 3

 Voltage Distribution
Chapter 3: Theory of Operation

Figure 3-2. AC Voltage Distribution to Raceways

Communication
Standard/emergency power
Raceway ground terminal Emergency/standard power
10 AWG ground Reference ground

Junction box
Standard power

Emergency power Raceway connector

3
Light raceway

Emergency/standard
power breaker panel

Gas raceway

Standard/emergency
power breaker panel
6 AWG reference ground

Bottom raceway

Ground bar

m043a026

Page 3 - 4 Horizon® Headwall System Service Manual

 Electrical Switches
Chapter 3: Theory of Operation

Electrical Switches

Figure 3-3. Wiring Diagrams

m043a021

Horizon® Headwall System Service Manual Page 3 - 5

 Electrical Switches
Chapter 3: Theory of Operation

Figure 3-4. Ground Power Receptacles

m043a022

Page 3 - 6 Horizon® Headwall System Service Manual

 Electrical Switches
Chapter 3: Theory of Operation

Figure 3-5. Isolated Power Receptacles

m043a023

Horizon® Headwall System Service Manual Page 3 - 7

 Specialite Patient Light
Chapter 3: Theory of Operation

Specialite Patient Light

Figure 3-6. Specialite Patient Light Wiring Diagram

m043a024

Page 3 - 8 Horizon® Headwall System Service Manual

 Low Voltage Controller
Chapter 3: Theory of Operation

Low Voltage Controller

Figure 3-7. Low Voltage Controller Wiring Diagram

m043a040

Horizon® Headwall System Service Manual Page 3 - 9

 Chase Theory
Chapter 3: Theory of Operation

Chase Theory

Chase
The vertical service chase carries medical gases, standard power, emergency
power, and communications cabling from the ceiling to multiple wall-mounted
raceways. The vertical chase consists of three modules: a power distribution
wireway, an expansion module to accommodate varying ceiling heights, and a
main junction box module for incoming electrical services.

The vertical chase will normally have an upper and a lower circuit breaker box
attached. The upper circuit breaker box supplies emergency power. The lower
circuit breaker supplies standard power.
3 Medical Gases
One-half inch (12.7 mm) inside diameter copper tubing carries the oxygen and
air. Three-quarter inch (190 mm) inside diameter copper tubing carries the
vacuum.

Standard Power
Standard power is available through the lower circuit breaker box and into all
three raceways. Ivory receptacles are used for the standard power outlets.

Emergency Power
Emergency power is available through the upper circuit breaker box and into
all of the raceways. Red receptacles are used for the emergency power outlets.

Communications/Low Voltage
Communications are carried by low voltage.

Page 3 - 10 Horizon® Headwall System Service Manual

 Chapter 4
Removal, Replacement, and
Adjustment Procedures

Chapter Contents

Duplex Receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 3
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 3
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 4
Bed Receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 6
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 6
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 7
Single Receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 8 4
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 8
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 9
Dimmer Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 10
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 10
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 11
Line Voltage Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 12
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 12
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 13
Ground Jack Receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 14
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 14
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 15
Telephone Receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 16
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 16
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 17

Horizon® Headwall System Service Manual Page 4 - 1

 Chapter 4: Removal, Replacement, and Adjustment Procedures

Night Light or Chart Light Bulb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 18

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 18
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 19
Chart Light Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 20
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 20
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 21
Circuit Breaker (Standard/Emergency Power) . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 22
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 22
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 23
Low Voltage Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 24
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 24
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 25
Timed Light Switch and Toggle Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 27
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 27
Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 28

Page 4 - 2 Horizon® Headwall System Service Manual

 4.1 Duplex Receptacle
Chapter 4: Removal, Replacement, and Adjustment Procedures

4.1 Duplex Receptacle

Removal

SHOCK HAZARD:
Locate the involved power supply circuit breaker panel. Set the involved
circuit breaker (A) to OFF (see figure 4-1 on page 4-3). Failure to follow
this procedure could cause serious injury and damage to the
equipment.

Figure 4-1. Standard/Emergency Circuit Breaker Box

4
A

m043a028

1. Turn off power at the appropriate circuit breaker (A) (lower breaker box
for the ivory receptacle or upper breaker box for the red receptacle), and
tag the breaker box out-of-service.

2. Remove the screws (B) from the duplex receptacle faceplate (C) (see figure
4-2 on page 4-4).

3. Remove the faceplate (C).

4. Remove the duplex receptacle attaching screws (D).

5. Pull the receptacle (A) out of the opening in the device plate.

Horizon® Headwall System Service Manual Page 4 - 3

 4.1 Duplex Receptacle
Chapter 4: Removal, Replacement, and Adjustment Procedures

6. Loosen the screws holding the wires.

7. Note the colors of the wires and their location.

8. Remove the wires from the terminals.

Figure 4-2. Duplex Receptacle Removal

Raceway

4
A

m043a029

Replacement
1. Replace the color coded wires at their original terminals (see figure 4-2 on
page 4-4).

2. Tighten the terminal screws.

3. Push the receptacle (A) into the device plate.

4. Install the duplex receptacle attaching screws (D).

5. Tighten the screws (D).

6. Install the faceplate (C) onto the device plate, and tighten the screws (B).

Page 4 - 4 Horizon® Headwall System Service Manual

 4.1 Duplex Receptacle
Chapter 4: Removal, Replacement, and Adjustment Procedures

7. Remove the out-of-service tags, and turn the circuit breaker on.

8. Test the receptacle for availability of power. See “Duplex Electrical

Receptacle—Standard/Emergency Is Inoperative” on page 2-12.

Horizon® Headwall System Service Manual Page 4 - 5

 4.2 Bed Receptacle
Chapter 4: Removal, Replacement, and Adjustment Procedures

4.2 Bed Receptacle

Removal

SHOCK HAZARD:
Locate the involved power supply circuit breaker panel. Set the involved
circuit breaker (A) to OFF (see figure 4-1 on page 4-3). Failure to follow
this procedure could cause serious injury and damage to the
equipment.

1. Locate the bed receptacle circuit breaker panel. Reset the circuit breaker
(A) to the OFF position, and tag the breaker box out-of-service.

NOTE:
Find the standard breaker box just above the lower raceway (A). The standard
breaker box mounts on the vertical chase.

2. Remove the faceplate screws and the faceplate (D) (see figure 4-3 on page
4-7).

3. Remove the faceplate (D) from the device plate.

4 4. Leave the indicator in position on the faceplate (D).

5. Loosen the receptacle screws (C) until the receptacles (B) can be lifted
away from the device plate.

6. Note and record the positions of the color coded wires.

7. Loosen the screws holding the wires.

8. Remove the power supply and indicator wires from the receptacle (B).

Page 4 - 6 Horizon® Headwall System Service Manual

 4.2 Bed Receptacle
Chapter 4: Removal, Replacement, and Adjustment Procedures

Figure 4-3. Bed Receptacle Removal

B
C
D

m043a030

Replacement 4
1. Place the indicator and power supply wires onto the receptacle terminal
screws.

2. Tighten the terminal screws.

3. Align the receptacle (B) with the retaining holes in the device plate.

4. Install and tighten the two receptacle-retaining fasteners into the device
plate.

5. Insert the faceplate (D) and indicator (E) onto the device plate.

6. Install and tighten the two faceplate screws to secure the faceplate (D) on
the device plate.

7. Set the circuit breaker to the ON position, test the receptacle (B) for power,
and remove the out-of-tag service tags.

8. Test the receptacle for availability of power. See “Bed Receptacle or

Indicator Is Inoperative” on page 2-6.

Horizon® Headwall System Service Manual Page 4 - 7

 4.3 Single Receptacle
Chapter 4: Removal, Replacement, and Adjustment Procedures

4.3 Single Receptacle

Removal

SHOCK HAZARD:
Locate the involved power supply circuit breaker panel. Set the involved
circuit breaker (A) to OFF (see figure 4-1 on page 4-3). Failure to follow
this procedure could cause serious injury and damage to the
equipment.

1. Locate the circuit breaker (A), set the involved breaker to the OFF position,
and tag the breaker box out-of-service.

2. Remove the screws (B) and the faceplate (C) from the single receptacle
device plate (see figure 4-4 on page 4-9).

3. Loosen the receptacle screws (D) until the receptacle (A) will lift away
from the device plate.

4. Note and record the positions of the color coded wires.

4 5. Unscrew the wire terminal screws just enough to remove the wires from
the receptacle (A).

Page 4 - 8 Horizon® Headwall System Service Manual

 4.3 Single Receptacle
Chapter 4: Removal, Replacement, and Adjustment Procedures

Figure 4-4. Single Receptacle Removal

Raceway

B
m043a031

Replacement
1. Install the color coded wires to the proper terminals on the new receptacle
4
(A).

2. Tighten the terminal screws on the receptacle (A).

3. Align the receptacle screws (D) with the holes in the device plate, and
install the receptacle (A) on the device plate.

4. Install the faceplate (C) and the screws (B) on the device plate.

5. Set the circuit breaker to the ON position, and remove the out-of-service
tags.

6. Test the receptacle (A) for power. See “Duplex Electrical Receptacle—
Standard/Emergency Is Inoperative” on page 2-12.

Horizon® Headwall System Service Manual Page 4 - 9

 4.4 Dimmer Switch
Chapter 4: Removal, Replacement, and Adjustment Procedures

4.4 Dimmer Switch

Removal

SHOCK HAZARD:
Locate the involved power supply circuit breaker panel. Set the involved
circuit breaker (A) to OFF (see figure 4-1 on page 4-3). Failure to follow
this procedure could cause serious injury and damage to the
equipment.

1. Locate the dimmer switch circuit breaker (A) in the standard power (lower
panel) breaker panel box, set it to the OFF position, and tag the breaker box
out-of-service.

2. Remove the dimmer switch button (C).

3. Remove the faceplate screws (D) and the faceplate (B) (see figure 4-5 on
page 4-11).

4. Take out the switch device plate retaining screws (E), and remove the
switch (A).
4 5. Record the positions of the color coded wires on the switch terminals.

6. Loosen the terminal screws on the switch, and remove the wires from the
switch (A).

Page 4 - 10 Horizon® Headwall System Service Manual

 4.4 Dimmer Switch
Chapter 4: Removal, Replacement, and Adjustment Procedures

Figure 4-5. Dimmer Switch Removal

Raceway

C (Supplied with
E dimmer switch)

Replacement
m043a032

4
1. Place the color coded wires in their original positions on the switch.

2. Tighten the terminal screws to hold the wires firmly in place.

3. Install the switch (A) on the device plate, and tighten the retaining screws
(E).

4. Place the faceplate (B) on the device plate, and install the retaining screws
(D).

5. Install the dimmer switch button (C) on the shaft.

6. Set the switch circuit breaker to the ON position, and test to see if the
switch (A) is working. See “Dimmer Switch Will Not Operate The Light”
on page 2-9.

Horizon® Headwall System Service Manual Page 4 - 11

 4.5 Line Voltage Switch
Chapter 4: Removal, Replacement, and Adjustment Procedures

4.5 Line Voltage Switch

Removal

SHOCK HAZARD:
Locate the involved power supply circuit breaker panel. Set the involved
circuit breaker (A) to OFF (see figure 4-1 on page 4-3). Failure to follow
this procedure could cause serious injury and damage to the
equipment.

1. Locate the line voltage switch circuit breaker (A) in the standard power
breaker panel (lower panel), set it to the OFF position, and tag the breaker
box out-of-service.

2. Remove the faceplate screws (C) and the faceplate (B) (see figure 4-6 on
page 4-13).

3. Take out the switch device plate retaining screws (D), and remove the
switch (A).

4. Record the positions of the color coded wires on the switch terminals.
4 5. Loosen the terminal screws on the switch (A) and remove the wires from
the switch (A).

Page 4 - 12 Horizon® Headwall System Service Manual

 4.5 Line Voltage Switch
Chapter 4: Removal, Replacement, and Adjustment Procedures

Figure 4-6. Line Voltage Switch Removal

Raceway

C
D

m043a033

Replacement 4
1. Place the color coded wires in their original positions on the switch (A).

2. Tighten the terminal screws to hold the wires firmly in place.

3. Install the switch (A) on the device plate. Install and tighten the retaining
screws (D).

4. Place the faceplate (B) on the device plate, and install the retaining screws
(C).

5. Set the circuit breaker to the ON position, remove the out-of-service tags,
and test the operation of the switch (A). See “Line Voltage Switch Will Not
Operate Attached Device” on page 2-10.

Horizon® Headwall System Service Manual Page 4 - 13

 4.6 Ground Jack Receptacle
Chapter 4: Removal, Replacement, and Adjustment Procedures

4.6 Ground Jack Receptacle

Removal
1. Remove the screws (C) and the faceplate (B) from the ground jack
receptacle device plate (see figure 4-7 on page 4-14).

2. Loosen the ground mounting plate screws (D) until the mounting plate (E)
will lift away from the device plate.

3. Unscrew the ground wire fastener just enough to remove the ground wire
from the receptacle (A).

4. Remove the attaching screws (D) and lift the ground receptacle (A) from
the ground mounting plate.

Figure 4-7. Ground Jack Receptacle Removal

Raceway
4
E

A
C B

m043a034

Page 4 - 14 Horizon® Headwall System Service Manual

 4.6 Ground Jack Receptacle
Chapter 4: Removal, Replacement, and Adjustment Procedures

Replacement
1. Install the ground receptacle (A) into the ground mounting plate. Place the
ground wire on the terminal, and tighten the fastener to hold it in place.

2. Align the ground plate screws with the holes in the device plate, and install
the ground plate on the device plate.

3. Install the faceplate (B) and screws (C) on the device plate.

4. Test for availability of ground with a ground test light.

Horizon® Headwall System Service Manual Page 4 - 15

 4.7 Telephone Receptacle
Chapter 4: Removal, Replacement, and Adjustment Procedures

4.7 Telephone Receptacle

Removal
1. Remove the screws (B) and the telemate faceplate (C) from the device
plate (see figure 4-8 on page 4-16).

2. Loosen the phone plate screws (A) until the phone plate will lift away from
the device plate.

3. Remove the telephone interface connector from the back of the modular
phone receptacle (D).

4. Remove the attaching screws (A) and lift the modular phone receptacle
from the phone plate.

Figure 4-8. Telephone Receptacle Removal

Raceway

4
A

C
D

m043a035

Page 4 - 16 Horizon® Headwall System Service Manual

 4.7 Telephone Receptacle
Chapter 4: Removal, Replacement, and Adjustment Procedures

Replacement
1. Install a modular phone receptacle (D) into the phone plate.

2. Place the phone wire interface into the back of the modular phone
receptacle (D).

3. Align the phone plate screws (A) with the holes in the device plate, and
install the phone plate on the device plate.

4. Install the TeleMate faceplate (C) and screws (B) on the device plate.

5. Check the modular phone receptacle (D) for correct phone function.

Horizon® Headwall System Service Manual Page 4 - 17

 4.8 Night Light or Chart Light Bulb
Chapter 4: Removal, Replacement, and Adjustment Procedures

4.8 Night Light or Chart Light Bulb

Removal

SHOCK HAZARD:
Locate the involved power supply circuit breaker panel. Set the involved
circuit breaker (A) to OFF (see figure 4-1 on page 4-3). Failure to follow
this procedure could cause serious injury and damage to the
equipment.

1. Locate the standard power circuit breaker (lower panel), and set the
involved breaker to the OFF position.

2. Remove the screws (D) and the chart or night light faceplate (E) from the
device plate (see figure 4-9 on page 4-19).

3. Remove the lock screws (C) and lock plates (F) from the night light
housing (I).

4. Take the device plate attaching screws (G) from the backbox, and remove
the device plate (H) from the raceway (K).
4 5. Remove the light bulb (A) from the fixture (B).

Page 4 - 18 Horizon® Headwall System Service Manual

 4.8 Night Light or Chart Light Bulb
Chapter 4: Removal, Replacement, and Adjustment Procedures

Figure 4-9. Night Light or Chart Light Bulb

J C

I
D
H
G
F
E
m043a036 4
Replacement
1. Install the new light bulb (A) in the fixture (B).

2. Insert the device plate attaching screws (G) and the device plate (H) on the
backbox.

3. Install the lock plate (F), device plate (H), and attaching screws (C) on the
chart or night light housing (I).

4. Install the screws (D) and faceplate (E) on the device plate (H).

5. Set the circuit breaker to the ON position.

6. Check the night light to see if it is working.

Horizon® Headwall System Service Manual Page 4 - 19

 4.9 Chart Light Switch
Chapter 4: Removal, Replacement, and Adjustment Procedures

4.9 Chart Light Switch

Removal

SHOCK HAZARD:
Locate the involved power supply circuit breaker panel. Set the involved
circuit breaker (A) to OFF (see figure 4-1 on page 4-3). Failure to follow
this procedure could cause serious injury and damage to the
equipment.

1. Locate the standard power circuit breaker (lower panel), set the involved
breaker to the OFF position, and tag the breaker box out-of-service.

2. Remove the screws (F) and the chart light faceplate (G) from the device
plate (J) (see figure 4-10 on page 4-21).

3. Take off the hex nut (K) from the base of the switch (C).

4. Remove the two retaining screws from the chart light switch (C).

5. Lift the switch (C) away from the device plate (J).
4 6. Remove the switch (C) wires from the power supply connectors.

Page 4 - 20 Horizon® Headwall System Service Manual

 4.9 Chart Light Switch
Chapter 4: Removal, Replacement, and Adjustment Procedures

Figure 4-10. Chart Light Switch Removal

A
B
C

D
K
F
J
I Screw
H
G

Replacement
m043a043

4
1. Install the power wires on the switch (C).

2. Insert the switch (C) into the device plate (J) and install the attaching
screws (I).

3. Install the hex nut (K) on the base of the switch shaft.

4. Install the screws (F) and faceplate (G) on the device plate (J).

5. Set the circuit breaker to the ON position, and remove the out-of-service
tags.

6. Turn the switch on to see if the chart light is working.

Horizon® Headwall System Service Manual Page 4 - 21

 4.10 Circuit Breaker (Standard/Emergency Power)
Chapter 4: Removal, Replacement, and Adjustment Procedures

4.10 Circuit Breaker (Standard/Emergency Power)

Removal

NOTE:
The emergency power circuit breaker is similar.

SHOCK HAZARD:
Locate the involved building standard/emergency circuit breaker panel.
Set the involved circuit breaker (A) to OFF (see figure 4-1 on page 4-3).
Lockout and tagout the breaker. Failure to follow this procedure could
cause serious injury and damage to the equipment.

1. Make note of the position of the Horizon Headwall System circuit breaker
to be replaced (see figure 4-11 on page 4-23).

2. Remove the breaker cover assembly (B) and the dead front panel (A).

3. Remove the retaining screw and kit (F) for the malfunctioning circuit
breaker (E) (for main breaker only).

4 4. Lift the breaker (E) from the breaker box.

5. Note the color coding and placement of the wires in the circuit breaker (E).

6. Remove one, two, or three wires from the one pole, two pole, or three pole
breaker (E).

Page 4 - 22 Horizon® Headwall System Service Manual

 4.10 Circuit Breaker (Standard/Emergency Power)
Chapter 4: Removal, Replacement, and Adjustment Procedures

Figure 4-11. Circuit Breaker (Standard/Emergency Power)

E F
Interior load
center
D

A
B

m043a037
4
Replacement
1. Install the color coded wires in the circuit breaker (E) in their original
places.

2. Align the breaker (E) and the retaining kit (F) (if equipped) to install the
screw that holds the breaker (E) in place.

3. Install the dead front panel (A) and breaker cover assembly (B).

4. Remove the lockout and tagout from the building circuit breaker, and set
the building circuit breaker back to the ON position.

5. Check the Horizon Headwall System circuit breaker for proper

functionality in its circuit.

Horizon® Headwall System Service Manual Page 4 - 23

 4.11 Low Voltage Controller
Chapter 4: Removal, Replacement, and Adjustment Procedures

4.11 Low Voltage Controller

Removal

SHOCK HAZARD:
Locate the involved power supply circuit breaker panel. Set the involved
circuit breaker(A) to OFF (see figure 4-1 on page 4-3). Failure to follow
this procedure could cause serious injury and damage to the
equipment.

1. Remove the three wire nuts (E) from the wire joints leading to the raceway
and bed switches (see figure 4-12 on page 4-25).

2. Separate the three wire joints (E).

3. Remove the four wire nuts (A) from the wires on the high voltage side of
the controller.

4. Separate the four wires.

5. Loosen the two screws from the reference ground (C), and remove the two
4 ground wires.

6. Remove the controller mounting screws and the controller (B) from the
barrier (D).

Page 4 - 24 Horizon® Headwall System Service Manual

 4.11 Low Voltage Controller
Chapter 4: Removal, Replacement, and Adjustment Procedures

Figure 4-12. Low Voltage Controller Removal

J-box portion of chase assembly

A (Specialite Patient Light—

indirect and read lights)

E (Low voltage to raceway and bed switches) 4

m043a044

Replacement

NOTE:
Before replacing the low voltage controller, check the following resistances
between the output leads:
• 120V AC 500 Ohms, plus or minus 100 Ohms
• 240V AC 1800 Ohms, plus or minus 100 Ohms
• 277V AC 2500 Ohms, plus or minus 100 Ohms

1. Align the low voltage controller (B) with mounting screw holes on the
barrier (D).

2. Install the mounting screws.

3. Insert the two ground wires in the reference ground (C), and tighten the
screws.

Horizon® Headwall System Service Manual Page 4 - 25

 4.11 Low Voltage Controller
Chapter 4: Removal, Replacement, and Adjustment Procedures

4. Connect the four wires to the high voltage side of the controller (A).

5. Install the four wire nuts (A).

6. Connect the three wires to the wires leading to the raceway and bed
switches (E).

7. Install the three wire nuts (E).

8. Remove the lockout and tagout from the building circuit breaker, and set
the building circuit breaker back to the ON position.

9. Test the low voltage controller (B) for power availability.

Page 4 - 26 Horizon® Headwall System Service Manual

 4.12 Timed Light Switch and Toggle Switch
Chapter 4: Removal, Replacement, and Adjustment Procedures

4.12 Timed Light Switch and Toggle Switch

Removal

SHOCK HAZARD:
Locate the involved power supply circuit breaker panel. Set the involved
circuit breaker (A) to OFF (see figure 4-1 on page 4-3). Failure to follow
this procedure could cause serious injury and damage to the
equipment.

1. Turn power OFF at the standard power circuit breaker (lower breaker
panel), and tag the breaker box out-of-service.

2. Remove the timed light switch mounting screws (D).

3. Pull the timed light switch (C) away from the device plate.

4. Remove the wire nut (B) from the timed light switch ground wire.

5. Remove the two toggle switch mounting screws (A).

6. Pull the toggle switch (E) away from the device plate.

7. Loosen the screws holding the power supply wires and timed light switch
4
wire.

8. Remove the wires from the toggle switch (E).

Horizon® Headwall System Service Manual Page 4 - 27

 4.12 Timed Light Switch and Toggle Switch
Chapter 4: Removal, Replacement, and Adjustment Procedures

Figure 4-13. Timed Light Switch and Toggle Switch

A B

E
A

4 D

m043a016

Replacement
1. Connect the power supply wires to the toggle switch screws.

2. Tighten the screws.

3. Connect the timed light switch ground wire to the toggle switch screw.

4. Tighten the screw.

5. Insert the toggle switch (E) in the device plate, and align the screw holes.

6. Install the two toggle switch mounting screws (A).

7. Connect the timed light switch ground wire with the wire nut (B).

Page 4 - 28 Horizon® Headwall System Service Manual

 4.12 Timed Light Switch and Toggle Switch
Chapter 4: Removal, Replacement, and Adjustment Procedures

8. Install the timed light switch (C) in the device plate.

9. Install the timed light switch mounting screws (D).

10. Remove the out-of-service tags from the standard circuit breaker, and set
the circuit breaker back to the ON position.

11. Test the timed light switch and toggle switch for power availability.

Adjustment

NOTE:
The timed light switch is adjustable to either 0 to 15 minutes or 0 to 30
minutes. Adjustments may be set from 0 to 30 minutes.

1. Remove the cover.

2. Find the potentiometer on the back of the cover.

3. Adjust the potentiometer to the desired setting between 0 and 30 minutes.

4. Replace the cover and check for the proper delay after switching the light
off.
4

Horizon® Headwall System Service Manual Page 4 - 29

 4.12 Timed Light Switch and Toggle Switch
Chapter 4: Removal, Replacement, and Adjustment Procedures

NOTES:

Page 4 - 30 Horizon® Headwall System Service Manual

 Chapter 5
Parts List

Chapter Contents

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 3
Ordering Service Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 5
Exchange Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 6
In-Warranty Exchanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 6
Out-of-Warranty Exchanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 6
Recommended Spare Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 7
Chase Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 8
Chase Assembly (Isolated Power) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 10
Chase Panels and Trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 12
Light Raceway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 14
Gas Raceway. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 16
Bottom Raceway. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 18
Raceway Fascia and Gas Excluder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 22
Chase Breaker Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 24
Timed Light Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 28
5
Specialite Patient Light Provision (Standard/Emergency) . . . . . . . . . . . . . . . . . . 5 - 30
Nurse Call Backbox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 32
Chaseless Raceway—Standard and Isolated Power . . . . . . . . . . . . . . . . . . . . . . . 5 - 34
TeleMate/Phone Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 36
Duplex Outlet Receptacles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 38
Single Outlet Receptacles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 40
Line Voltage Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 42
Ground Receptacles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 44

Horizon® Headwall System Service Manual Page 5 - 1

 Chapter 5: Parts List

Night and Chart Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 46

Hose Panels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 48
Manifold Tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 52
Low Voltage Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 54
Side-Com Communication System Receptacle . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 56
Low Voltage Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 - 58

Page 5 - 2 Horizon® Headwall System Service Manual

 Warranty
Chapter 5: Parts List

Warranty

Hill-Rom ,

A Hillenbrand Industry
LIMITED WARRANTY
Hill-Rom has a long tradition of providing superior quality products and service to our customer. Our goal is “Total Customer
Satisfaction.” In that spirit, Hill-Rom is proud to offer the following warranty.
GENERAL WARRANTY:
Hill-Rom warrants to the original purchaser that its products shall be free from defects in material and workmanship for a
period of one (1) year after date of delivery. Hill-Rom’s obligation under this warranty is expressly limited to supplying
replacement parts and/or service for, or replacing, at its option, any product which is, in the sole discretion of Hill-Rom,
found to be defective. In addition to the foregoing one year warranty, Hill-Rom warrants to the original purchaser that the
frame and welds on its beds will be free from structural defects for the life of the bed. THE FOREGOING WARRANTIES
ARE EXCLUSIVE AND IN LIEU OF ALL OTHER EXPRESS WARRANTIES AND IMPLIED WARRANTIES,
INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS OF
PURPOSE. HILL-ROM’S OBLIGATION UNDER THESE WARRANTIES SHALL NOT INCLUDE ANY LIABILITY
FOR LOSS OF PROFITS, DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES OR DELAYS. Some states do not
allow the exclusion or limitation of incidental or consequential damages, so the above exclusion or limitation may not apply.
If requested by Hill-Rom, products or parts for which a warranty claim is made shall be returned prepaid to Hill-Rom’s
factory. Any improper or negligent use, any alterations or repairs not in accordance with Hill-Rom’s manuals or performed by
others in such manner as in Hill-Rom’s judgment affects the product materially and adversely, shall void these warranties. No
employee or representative of Hill-Rom is authorized to change these warranties in any way or grant any other warranty.
These warranties shall not apply outside the United States. These warranties provide specific legal rights; however, there may
be other available rights, which vary from state to state.
5
PART AVAILABILITY POLICY: Hill-Rom will supply parts for new products for fifteen (15) years from date of last
manufacture, and on remanufactured products for ten (10) years from date of sale.
OUT OF WARRANTY EXCHANGE POLICY: After the expiration of the original warranty, upon request, Hill-Rom will
ship as a replacement, rebuilt electric motors, control boards, and air compressors for like units returned to Hill-Rom by the
original purchaser for forty percent (40%) of the then-current new price. The exchange price is a substantial savings to the
hospital as compared to the price of a new motor, control boards, and air compressors. The replacement motors, control
boards and air compressors will carry a new one (1) year parts warranty.
SPECIFIC WARRANTIES:
MATTRESS WARRANTIES:
DYNAMICAIRE™ SLEEP SURFACE: Hill-Rom warrants to the original purchaser that its product shall be free from
defects in material and workmanship for a period of two (2) years from date of delivery. After the expiration of this warranty,
the surface components may be purchased at 50% of the then-current price during the third, fourth and fifth years after date of
delivery. (Continued)

Horizon® Headwall System Service Manual Page 5 - 3

 Warranty
Chapter 5: Parts List

COMFORTLINE® MATTRESS: Hill-Rom warrants to the original purchaser that its product shall be free from defects in
material and workmanship for a period of two (2) years from date of delivery. After the expiration of this warranty, the
mattress components may be purchased at 50% of the then-current price during the third, fourth and fifth years after date of
delivery.
ZONEAIRE® SLEEP SURFACE: Hill-Rom warrants to the original purchaser that its product shall be free from defects in
material and workmanship for a period of two (2) years from date of delivery. After the expiration of this warranty, the
surface components may be purchased at 50% of the then-current price during the third, fourth and fifth years after date of
delivery. Electromechanical components (compressor, valves, printed circuit boards, hoses and couplers) are warranted to be
free from defects in material and workmanship for a period of one (1) year from date of delivery.
INNERSPRING MATTRESS: Hill-Rom warrants to the original purchaser that its product shall be free from defects in
material and workmanship for the following specified periods from date of delivery. SureRest® III: Twelve (12) year prorated
warranty; SureRest II: Ten (10) year prorated warranty; SureRest I: Five (5) year prorated warranty.
PERINATAL MATTRESS: Hill-Rom warrants to the original purchaser that its product shall be free from defects in
material and workmanship for a period of one (1) year, when used with proper draping practices, from date of delivery.
FOAM MATTRESS: Hill-Rom warrants to the original purchaser that its product shall be free from defects in material and
workmanship for a period of two (2) years from date of delivery.
COMPOSER™ COMMUNICATION SYSTEM WARRANTIES:
COMPOSER HARDWARE WARRANTIES: Hill-Rom warrants to the original purchaser that the hardware components
of the COMposer shall be free from defects in material and workmanship for a period of one (1) year after the date of system
certification. Hill-Rom’s obligation under this warranty is expressly limited to supplying replacement parts and/or service for,
or replacing, at its option, any product which is, in the sole discretion of Hill-Rom, found to be inoperable.
COMPOSER SOFTWARE WARRANTIES: Hill-Rom warrants to the original purchaser that the physical diskettes on
which COMposer system software is distributed shall be free from defects in material and workmanship for a period of sixty
(60) days from the date of delivery. The entire and exclusive remedy available to the purchaser under this warranty is limited
to replacement of inoperable diskettes and shall not extend to any claim for or right to recover any damages, including but not
limited to, loss of profit, data or use of the software, or special, incidental or consequential damages, or other similar claims.
COMPOSER EXPENDABLES WARRANTIES: Hill-Rom warrants for sixty (60) days the expendable parts such as
locator badge batteries and dome light incandescent bulbs.
OTHER WARRANTIES:
EXPENDABLES WARRANTIES: A sixty (60) day limited warranty applies to expendable parts such as overhead
fluorescent tubes, heating elements and temperature probes.
UPGRADE KIT WARRANTIES: Hill-Rom warrants to the original purchaser that its product shall be free from defects in
material and workmanship for a period of one (1) year from date of delivery. The warranty on existing product is not affected.

5 A Product Assurance and/or Preventive Maintenance contract will be offered at the time of installation for a pre-determined
fee. This will act to advise the customer of the condition of Hill-Rom products being upgraded along with specific parts and
PM recommendations.
FOR PARTS AND SERVICE UNDER THESE WARRANTIES: Call Hill-Rom Technical Support Department at
(800) 445-3720, Monday through Friday. In order to expedite service, we request you furnish the following information:
customer identification number, product model number, serial number, and description of problem. A qualified Specialist will
provide, via telephone, troubleshooting assistance for hospital personnel and provide necessary parts to make repairs. If
telephone troubleshooting determines the need for on-site technical service, a qualified Territory Service Representative will
be dispatched. Replacement of non-technical items will be the responsibility of the customer. These warranties do not cover
failures due to misuse, abuse, neglect or lack of routine maintenance, which are the responsibility of the owner.
Revised November 1, 1995

Page 5 - 4 Horizon® Headwall System Service Manual

 Ordering Service Parts
Chapter 5: Parts List

Ordering Service Parts

Use the parts lists in this service manual to identify the part numbers you
require.

Call your Technical Customer Support Specialist at the Hill-Rom Technical

Support Department—phone (800) 445-3720. To help expedite the processing
of your parts order, please have your six-digit customer account number,
purchase order number, and product number available for the Technical
Customer Support Specialist when you call.

NOTE:
You will find the product number listed along with each part number in this
chapter.

For your convenience, Hill-Rom provides a telefax number to promptly order

parts, request part prices and availability, or to follow up on a service order.
The telefax number is (812) 934-8472.

We suggest a minimum of $40.00 when placing orders for service parts. This
will help prevent an increase in the cost of processing your service order.

Terms:
• Net 30 days.
• F.O.B. Batesville, Indiana.
• Shipping charges are prepaid and added to the invoice.
• All service orders are shipped UPS ground, unless you specifically request
an alternative method.

Address all inquiries to:

5
Hill-Rom Company
1069 State Route 46 E
Batesville, Indiana 47006-9167
Attention: Technical Support—Parts

Address all return goods to:

Hill-Rom Company
Distribution Center Door D23
County Road 300E
Batesville, Indiana 47006-9167
Attention: Service Stores

Horizon® Headwall System Service Manual Page 5 - 5

 Exchange Policy
Chapter 5: Parts List

NOTE:
To eliminate possible delays or incorrect billings, do not return any items
without a Return Material Authorization (RMA) number. A Return Material
Authorization packet is included with each order when a return is requested.
This packet includes an RMA number, instructions, and a shipping label. If
misplaced, obtain an RMA number by phoning the Hill-Rom Technical
Support Department at (800) 445-3720.

Exchange Policy
The following are Hill-Rom’s policies for in-warranty and out-of-warranty
exchanges.

In-Warranty Exchanges
Hill-Rom will request that parts/products be returned for inspection in some
cases. When this occurs, you are expected to return parts/products within 30
days. If you fail to return the inoperative parts/products within the 30-day
period, Hill-Rom will invoice your facility for the full selling price of the
parts/products.

NOTE:
The preceding billing procedure only pertains to parts/products that Hill-Rom
requests to be returned.

In some cases, the invoice sent with the parts will show the full selling price of
the parts. This is for Hill-Rom’s internal use only and should not be confused
with the price you will actually pay.

5 Please do not return any parts without an RMA number. Hill-Rom will include
a Return Material Authorization packet with the parts/products shipment when
parts/products have been requested to be returned. If misplaced, obtain an
RMA number by phoning the Hill-Rom Technical Support Department at
(800) 445-3720.

Out-of-Warranty Exchanges
You are expected to return the inoperative parts/product to Hill-Rom within 30
days. Hill-Rom will include a Return Material Authorization packet with the
parts/products shipment. If misplaced, obtain an RMA number by phoning the
Hill-Rom Technical Support Department at (800) 445-3720. If you fail to
return the equipment within 30 days, Hill-Rom will invoice your facility for
the difference between the exchange price and the new price of the part.

Page 5 - 6 Horizon® Headwall System Service Manual

 Recommended Spare Parts
Chapter 5: Parts List

Recommended Spare Parts

There are no recommended spare parts for the Horizon Headwall System.

Horizon® Headwall System Service Manual Page 5 - 7

 Chase Assembly
Chapter 5: Parts List

Chase Assembly

Figure 5-1. Chase Assembly

m043a001

Page 5 - 8 Horizon® Headwall System Service Manual

 Chase Assembly
Chapter 5: Parts List

Table 5-1. Chase Assembly

Item Number Part Number Quantity Description

1 52243-07 (1000-00) 2 Screw
2 50891-06 (1000-00) 12 Screw
3 15250 (1000-00) 4 Locknut
4 SP268 (1000-00) 3 Conduit
5 SP250-2 (1000-00) 1 Upper corner trim—rh
6 SP250-1 (1000-00) 1 Upper corner trim—lh
7 56010 (1000-00) 1 Lower chase sub assembly
8 53330-02 (1000-00) 1 Upper chase sub assembly
9 51517-01 (1000-00) 19 Housing connector
10 56551 (1000-00) 1 Ground bar
11 15107 (1000-00) 6 Wire joint
12 52553 (1000-00) 10 Wire tie
13 52566 (1000-00) As Required Label chase (not shown)

Horizon® Headwall System Service Manual Page 5 - 9

 Chase Assembly (Isolated Power)
Chapter 5: Parts List

Chase Assembly (Isolated Power)

Figure 5-2. Chase Assembly (Isolated Power)

m043a002

Page 5 - 10 Horizon® Headwall System Service Manual

 Chase Assembly (Isolated Power)
Chapter 5: Parts List

Table 5-2. Chase Assembly (Isolated Power)

Item Number Part Number Quantity Description

1 57293 (1000-00) 2 Panel grounding bracket
2 29591 (1000-00) 6 Screw
3 34084 (1000-00) 6 Lockwasher, exterior tooth
4 57297 (1000-00)* 1 Panel, isolated power, J-box
5 57298 (1000-00)* 1 Panel, isolated power, lower

* Specify high pressure laminate color.

Horizon® Headwall System Service Manual Page 5 - 11

 Chase Panels and Trim
Chapter 5: Parts List

Chase Panels and Trim

Figure 5-3. Chase Panels and Trim

m043a003

Page 5 - 12 Horizon® Headwall System Service Manual

 Chase Panels and Trim
Chapter 5: Parts List

Table 5-3. Chase Panels and Trim

Item Number Part Number Quantity Description

1 52359 (1000-00)* 1 Panel—lower
2 52360 (1000-00)* 1 Panel, laminated—J-box
3 SP251 (1000-00)* 1 Panel, laminated—middle
4 SP253-1 (1000-00)* 1 Fascia—left side
5 SP253-2 (1000-00)* 1 Fascia—right side
6 SP253-3 (1000-00)* 1 Fascia—left side
7 SP253-4 (1000-00)* 1 Fascia—right side
8 53125-02 (1000-00) 10 Screw
9 SP401 (1000-00) 2 Trim, rear upper—3 rail
10 55891 (1000-00) 2 Trim, rear middle
11 55890 (1000-00) 2 Trim, rear lower

* Specify high pressure laminate color.

Horizon® Headwall System Service Manual Page 5 - 13

 Light Raceway
Chapter 5: Parts List

Light Raceway

Figure 5-4. Light Raceway

m043a004

Page 5 - 14 Horizon® Headwall System Service Manual

 Light Raceway
Chapter 5: Parts List

Table 5-4. Light Raceway

Item Number Part Number Quantity Description

1 5647301 (1000-00) 1 Gas raceway 3’
2 5647302 (1000-00) 1 Gas raceway 4’
3 5647303 (1000-00) 1 Gas raceway 5’
4 5647304 (1000-00) 1 Gas raceway 7’
5 5647305 (1000-00) 1 Gas raceway 8’
6 50891-02 (1000-00) As required Screw
7 52122 (1000-00) 2 Lock—device plate
8 52105 (1000-00) 1 Device plate—plain
9 52145 (1000-00) 1 Device plate—notched
10 52226 (1000-00) 1 Blank faceplate (almond)
11 50590 (1000-00) 2 Screw
12 52243-03 (1000-00) 1 Screw
13 52243-10 (1000-00) 1 Screw
14 52243-07 (1000-00) 2 Screw
15 15250 (1000-00) As required Locknut
16 51517-01 (1000-00) As required Housing—contact
17 54521 (1000-00) 1 End cap—raceway
18 52061 (1000-00) 1 End plate lh
19 52062 (1000-00) 1 End plate rh—primed
20 53125-02 (1000-00) 4 Screw
21 16115 (1000-00) 2 Screw
22 51519-04 (1000-00) 1 3' mounting bracket
23
24
51519-03 (1000-00)
51519-06 (1000-00)
1
1
4' mounting bracket
Mounting bracket
5
25 51519-01 (1000-00) 1 7' mounting bracket
26 51519-05 (1000-00) 1 Hanger mounting bracket—8'
27 54759 (1000-00) 1 Transition sleeve—gas
28 54758 (1000-00) 1 Transition sleeve—Specialite
29 55463 (1000-00) 1 Ground barrier
30 29590 (1000-00) 1 Screw
31 52465 (1000-00) 1 Label—raceway

Horizon® Headwall System Service Manual Page 5 - 15

 Gas Raceway
Chapter 5: Parts List

Gas Raceway

Figure 5-5. Gas Raceway

m043a005

Page 5 - 16 Horizon® Headwall System Service Manual

 Gas Raceway
Chapter 5: Parts List

Table 5-5. Gas Raceway

Item Number Part Number Quantity Description

1 5647401 (1000-00) 1 Gas raceway 3’
2 5647402 (1000-00) 1 Gas raceway 4’
3 5647403 (1000-00) 1 Gas raceway 5’
4 5647404 (1000-00) 1 Gas raceway 7’
5 5647405 (1000-00) 1 Gas raceway 8’
6 50891-02 (1000-00) As required Screw
7 52122 (1000-00) 2 Lock—device plate
8 52105 (1000-00) 1 Device plate—plain
9 52145 (1000-00) 1 Device plate—notched
10 52226 (1000-00) 1 Blank faceplate (almond)
11 50590 (1000-00) 2 Screw
12 52243-03 (1000-00) 1 Screw
13 52243-10 (1000-00) 1 Screw
14 52243-07 (1000-00) 2 Screw
15 15250 (1000-00) As required Locknut
16 51517-01 (1000-00) As required Housing—contact
17 54754-01 (1000-00) 1 End cap—gas raceway
18 52061 (1000-00) 1 End plate lh
19 52062 (1000-00) 1 End plate rh—primed
20 53125-02 (1000-00) 4 Screw
21 16115 (1000-00) 2 Screw
22 51519-04 (1000-00) 1 3' mounting bracket
23
24
51519-03 (1000-00)
51519-06 (1000-00)
1
1
4' mounting bracket
Mounting bracket
5
25 51519-01 (1000-00) 1 7' mounting bracket
26 51519-05 (1000-00) 1 Hanger mounting bracket—8'
27 54759 (1000-00) 1 Transition sleeve—gas
28 55463 (1000-00) 1 Ground barrier
29 54754-02 1 End cap—gas raceway
30 29590 (1000-00) 1 Screw
31 52565 (1000-00) 1 Label—raceway

Horizon® Headwall System Service Manual Page 5 - 17

 Bottom Raceway
Chapter 5: Parts List

Bottom Raceway

Figure 5-6. Bottom Raceway

m043a006

Page 5 - 18 Horizon® Headwall System Service Manual

 Bottom Raceway
Chapter 5: Parts List

Table 5-6. Bottom Raceway

Item Number Part Number Quantity Description

1 5647501 (1000-00) 1 Bottom raceway 3’
2 5647502 (1000-00) 1 Bottom raceway 4’
3 5647503 (1000-00) 1 Bottom raceway 5’
4 5647504 (1000-00) 1 Bottom raceway 7’
5 5647505 (1000-00) 1 Bottom raceway 8’
6 50891-02 (1000-00) As required Screw
7 52122 (1000-00) 2 Lock—device plate
8 52105 (1000-00) 1 Device plate—plain
9 52145 (1000-00) 1 Device plate—notched
10 52226 (1000-00) 1 Blank faceplate (almond)
11 50590 (1000-00) 2 Screw
12 52243-03 (1000-00) 1 Screw
13 52243-10 (1000-00) 1 Screw
14 52243-07 (1000-00) 2 Screw
15 15250 (1000-00) As required Locknut
16 51517-01 (1000-00) As required Housing contact
17 54755-01 (1000-00) 1 End cap—bottom raceway
18 52061 (1000-00) 1 End plate lh
19 52062 (1000-00) 1 End plate rh—primed
20 53125-02 (1000-00) 1 Screw
21 16115 (1000-00) 1 Screw
22 51519-04 (1000-00) 1 3' mounting bracket
23
24
51519-03 (1000-00)
51519-06 (1000-00)
1
1
4' mounting bracket
Mounting bracket
5
25 51519-01 (1000-00) 1 7' mounting bracket
26 51519-05 (1000-00) 1 Hanger mounting bracket—8'
27 54760 (1000-00) 1 Transition sleeve—bottom
raceway
28 54761 (1000-00) 1 Transition sleeve—behind bumper
29 54762 (1000-00) 1 Transition sleeve—between
bumper
30 55463 (1000-00) 1 Ground barrier
31 29590 (1000-00) 1 Screw
32 54755-02 (1000-00) 1 End cap—bottom raceway

Horizon® Headwall System Service Manual Page 5 - 19

 Bottom Raceway
Chapter 5: Parts List

Item Number Part Number Quantity Description

33 52565 (1000-00) 1 Label—raceway

Page 5 - 20 Horizon® Headwall System Service Manual

 Bottom Raceway
Chapter 5: Parts List

NOTES:

Horizon® Headwall System Service Manual Page 5 - 21

 Raceway Fascia and Gas Excluder
Chapter 5: Parts List

Raceway Fascia and Gas Excluder

Figure 5-7. Raceway Fascia and Gas Excluder

m043a007

Page 5 - 22 Horizon® Headwall System Service Manual

 Raceway Fascia and Gas Excluder
Chapter 5: Parts List

Table 5-7. Raceway Fascia and Gas Excluder

Item Number Part Number Quantity Description

1 SP26536 (1000-00)* As required Raceway fascia punched
2 SP26548 (1000-00)* As required Raceway fascia punched
3 SP26560 (1000-00)* As required Raceway fascia punched
4 SP26584 (1000-00)* As required Raceway fascia punched
5 SP26596 (1000-00)* As required Raceway fascia punched
6 52738 (1000-00) 1 Gas excluder
7 52738-04 (1000-00) 1 Gas excluder
8 52738-08 (1000-00) 1 Gas excluder
9 52738-12 (1000-00) 1 Gas excluder
10 52738-16 (1000-00) 1 Gas excluder
11 52738-20 (1000-00) 1 Gas excluder
12 52738-24 (1000-00) 1 Gas excluder
13 52738-28 (1000-00) 1 Gas excluder
14 52738-32 (1000-00) 1 Gas excluder
15 52738-36 (1000-00) 1 Gas excluder
16 52368 (1000-00) 1 Setscrew
17 54031 (1000-00) As required Sealant

*Specify high pressure laminate color.

Horizon® Headwall System Service Manual Page 5 - 23

 Chase Breaker Panel
Chapter 5: Parts List

Chase Breaker Panel

Figure 5-8. Chase Breaker Panel

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Page 5 - 24 Horizon® Headwall System Service Manual

 Chase Breaker Panel
Chapter 5: Parts List

Table 5-8. Chase Breaker Panel

Item Number Part Number Quantity Description

1 54804 (1000-00)* 1 Circuit breaker panel, subassembly
lower
2 54805 (1000-00)* 1 Circuit breaker panel, subassembly
lower
3 54807 (1000-00) 1 Circuit breaker panel, subassembly
upper
4 54808 (1000-00) 1 Circuit breaker panel, subassembly
upper
5 58575 (1000-00) As required Tie bar, single pole main
6 5855612 (1000-00) 1 Circuit breaker 12 pole, 1 phase—
interior
7 52712-12 (1000-000 1 Load center, 3 phase—interior
8 52706 (1000-00)‡ 1 Retainer kit
9 50094-30 (1000-00)‡ 1 Circuit breaker—1 pole 30 amp
10 50094-50 (1000-00)‡ 1 Circuit breaker—1 pole
11 50096-30 (1000-00)‡ 1 Circuit breaker—2 pole 30 amp
12 50096-50 (1000-00)‡ 1 Circuit breaker—2 pole 50 amp
13 5009670 (1000-00)‡ 1 Circuit breaker—2 pole 70 amp
14 50120-50 (1000-00) 1 Circuit breaker—3 pole
15 5012070 (1000-00) 1 Circuit breaker—2 pole 70 amp
16 54797 (1000-00) 1 Cover assembly
17 52945-01 (1000-00) 4 Screw (upper C.B. panel)
18 50891-07 (1000-00) 4 Screw (lower C. B. panel)
19
20
393 (1000-00)
56085 (1000-00)
4
As required
Screw (dead front)
Blank label
5
21 58574 (1000-00) 1 Retainer, back-fed main
22 29710 (1000-00) As required Label lighting
23 51367 (1000-00) As required Circuit number label
24 53856-01 (1000-00) 1 Latch swell
25 50111-15 (1000-00) 1 Circuit breaker—15 amp, 1 pole
26 50111-20 (1000-00) 1 Circuit breaker—20 amp, 1 pole

* Specify high pressure laminate color.

‡ Main breaker items (number 9 through 13) must be tied down with kit item (number 8).

Horizon® Headwall System Service Manual Page 5 - 25

 Chase Breaker Panel
Chapter 5: Parts List

Item Number Part Number Quantity Description

27 50891-04 (1000-00) 4 Screw
28 53850 (1000-00) 1 Dead front assembly

* Specify high pressure laminate color.

‡ Main breaker items (number 9 through 13) must be tied down with kit item (number 8).

Page 5 - 26 Horizon® Headwall System Service Manual

 Chase Breaker Panel
Chapter 5: Parts List

NOTES:

Horizon® Headwall System Service Manual Page 5 - 27

 Timed Light Switch
Chapter 5: Parts List

Timed Light Switch

Figure 5-9. Timed Light Switch

m043a009

Page 5 - 28 Horizon® Headwall System Service Manual

 Timed Light Switch
Chapter 5: Parts List

Table 5-9. Timed Light Switch

Item Number Part Number Quantity Description

1 52553 (1000-00) 1 Wire tie
2 51517-01 (1000-00) 2 Housing—contact
3 50128 (1000-00) 1 Wire tie mount
4 56284 (1000-00) 1 Switch, 3 way toggle
5 16115 (1000-00) 2 Screw
6 53888-01 (1000-00) 1 Timer assembly—engraved
horizontal
7 53888-02 (1000-00) 1 Timer assembly—engraved
vertical
8 54675 (1000-00) 1 Switch, 3 way, toggle red (20 amp)

Horizon® Headwall System Service Manual Page 5 - 29

 Specialite Patient Light Provision (Standard/Emergency)
Chapter 5: Parts List

Specialite Patient Light Provision (Standard/Emergency)

Figure 5-10. Specialite Patient Light Provision (Standard/Emergency)

m043a010

Page 5 - 30 Horizon® Headwall System Service Manual

 Specialite Patient Light Provision (Standard/Emergency)
Chapter 5: Parts List

Table 5-10. Specialite Patient Light Provision (Standard Emergency)

Item Number Part Number Quantity Description

1 57848 (1000-00) 1 Specialite—pigtail (emergency
power)
2 51276 (1000-00) 1 Plate
3 16115 (1000-00) 4 Screw
4 52243-05 (1000-00) 2 Screw
5 15250 (1000-00) 4 Locknut
6 28438 (1000-00) 1 Outlet single, 20 amp, ivory
7 56597 (1000-00) 1 Indicator assembly
8 56417 (1000-00) 1 Faceplate—engraved
9 56418 (1000-00) 1 Faceplate—engraved
10 58175 (1000-00) 1 Bed receptacle label
11 50590 (1000-00) 2 Screw
12 58182 (1000-00) 1 Bed receptacle faceplate red

Horizon® Headwall System Service Manual Page 5 - 31

 Nurse Call Backbox
Chapter 5: Parts List

Nurse Call Backbox

Figure 5-11. Nurse Call Backbox

m043a011

Page 5 - 32 Horizon® Headwall System Service Manual

 Nurse Call Backbox
Chapter 5: Parts List

Table 5-11. Nurse Call Backbox

Item Number Part Number Quantity Description

1 29587 (1000-00) 2 Snap bushing
2 52280-11 (1000-00)* 1 EDM assembly (2 gang—low
voltage)
3 52280-12 (1000-00)* 1 EDM assembly (3 gang—low
voltage)
4 52280-13 (1000-00)* 1 EDM assembly (4 gang—low
voltage)
5 52280-14 (1000-00)* 1 EDM assembly (5 gang—low
voltage)
6 52280-15 (1000-00)* 1 EDM assembly (6 gang—low
voltage)
7 52280-16 (1000-00)* 1 EDM assembly (7 gang—low
voltage)
8 52280-17 (1000-00)* 1 EDM assembly (8 gang—low
voltage)

*Specify high pressure laminate color.

Horizon® Headwall System Service Manual Page 5 - 33

 Chaseless Raceway—Standard and Isolated Power
Chapter 5: Parts List

Chaseless Raceway—Standard and Isolated Power

Figure 5-12. Chaseless Raceway—Standard and Isolated Power

m043a012

Page 5 - 34 Horizon® Headwall System Service Manual

 Chaseless Raceway—Standard and Isolated Power
Chapter 5: Parts List

Table 5-12. Chaseless Raceway—Standard and Isolated Power

Item Number Part Number Quantity Description

1 53125-02 (1000-00) 4 Screw
2 52243-07 (1000-00) 2 Screw
3 50891-08 (1000-00) 2 Screw
4 50891-02 (1000-00) 3 Screw
5 50590 (1000-00) 2 Screw
6 15250 (1000-00) 4 Locknut
7 21352 (1000-00) 3 Snap bushing
8 52685 (1000-00) 1 Label—hook-up
9 SP280 (1000-00) 1 Back entry raceway, modified
10 54755-01 (1000-00) 1 Endcap—bottom raceway
11 54755-02 (1000-00) 1 Endcap—bottom raceway
12 54754-01 (1000-00) 1 Endcap—gas raceway
13 54754-02 (1000-00) 1 Endcap—gas raceway
14 54521 (1000-00) 1 Endcap—raceway
15 53023-01 (1000-00) 1 Barrier assembly
16 52666 (1000-00) 1 Access plate—lh
17 52226 (1000-00) 1 Blank faceplate (almond)
18 52122 (1000-00) 2 Lock—device plate
19 56765 (1000-00) 2 Ring terminal
20 52061 (1000-00) 1 End plate—lh
21 52062 (1000-00) 1 End plate—rh primed
22 53077 (1000-00) 1 Installation instruction (not shown)
23
24
32112 (1000-00)
56551 (1000-00)
1
1
Reference ground label
Ground bar
5

Horizon® Headwall System Service Manual Page 5 - 35

 TeleMate/Phone Options
Chapter 5: Parts List

TeleMate/Phone Options

Figure 5-13. TeleMate/Phone Options

m043a013

Page 5 - 36 Horizon® Headwall System Service Manual

 TeleMate/Phone Options
Chapter 5: Parts List

Table 5-13. TeleMate/Phone Options

Item Number Part Number Quantity Description

1 53164 (1000-00) 1 Backbox device—shallow
2 52145 (1000-00) 1 Device plate—notched
3 52122 (1000-00) 2 Lock—device plate
4 51757 (1000-00) 1 Phone receptacle assembly
5 52235 (1000-00) 1 Faceplate—TeleMate
6 50590 (1000-00) 2 Screw
7 16115 (1000-00) 2 Screw
8 50891-02 (1000-00) 2 Screw
9 52226 (1000-00) 1 Blank faceplate (almond)
10 55534 (1000-00) 1 Label, low voltage
11 50891-06 (1000-00) 2 Screw

Horizon® Headwall System Service Manual Page 5 - 37

 Duplex Outlet Receptacles
Chapter 5: Parts List

Duplex Outlet Receptacles

Figure 5-14. Duplex Outlet Receptacles

m043a014

Page 5 - 38 Horizon® Headwall System Service Manual

 Duplex Outlet Receptacles
Chapter 5: Parts List

Table 5-14. Duplex Outlet Receptacles

Item Number Part Number Quantity Description

1 16115 (1000-00) 2 Screw
2 28439 (1000-00) 1 Outlet—duplex 20A (ivory)
3 51129 (1000-00) 1 Outlet—duplex 15A (ivory)
4 28436 (1000-00) 1 Outlet—duplex 20A (red)
5 51130 (1000-00) 1 Outlet—duplex 15A (red)
6 33798 (1000-00) 1 Outlet—duplex pediatric 15A
(ivory)
7 33799 (1000-00) 1 Outlet—duplex pediatric 15A
(red)
8 52412 (1000-00) 1 Outlet—duplex 15A—isolated
power
9 51036 (1000-00) 1 Outlet—duplex GFCI, 20A (ivory)
10 54743 (1000-00) 1 Outlet—duplex GFCI, 20A (red)
11 55147 (1000-00) 1 Outlet—duplex 20A (neutral)
12 52414 (1000-00) 1 Outlet—duplex 20A (ivory)
lighted
13 52413 (1000-00) 1 Outlet—duplex 15A (ivory)
lighted
14 52227 (1000-00) 1 Duplex faceplate—almond
15 55207 (1000-00) 1 Label—GFCI warning
16 55166 (1000-00) 1 Faceplate, engraved GFCI
17 55167 (1000-00) 1 Faceplate, engraved GFCI
18 55168 (1000-00) 1 Faceplate, engraved GFCI
19
20
56598 (1000-00)
56878 (1000-00)
1
1
Insulator, duplex (optional)
Insulator, decorative style
5
(optional)

Horizon® Headwall System Service Manual Page 5 - 39

 Single Outlet Receptacles
Chapter 5: Parts List

Single Outlet Receptacles

Figure 5-15. Single Outlet Receptacles

m043a015

Page 5 - 40 Horizon® Headwall System Service Manual

 Single Outlet Receptacles
Chapter 5: Parts List

Table 5-15. Single Outlet Receptacles

Item Number Part Number Quantity Description

1 16115 (1000-00) 2 Screw
2 28438 (1000-00) 1 Outlet—single 20A (ivory)
3 18061 (1000-00) 1 Outlet—single 15A (ivory)
4 28437 (1000-00) 1 Outlet—single 20A (red)
5 51042 (1000-00) 1 Outlet—single 15A (red)
6 18062 (1000-00) 1 Outlet—(twist lock 20A)
7 51024 (1000-00) 1 Outlet—single 15A (orange)
8 52228 (1000-00) 1 Simplex faceplate—almond
9 50590 (1000-00) 1 Screw
10 52229 (1000-00) 1 Faceplate, twist lock
11 56599 (1000-00) 1 Insulator, simplex (optional)

Horizon® Headwall System Service Manual Page 5 - 41

 Line Voltage Switch
Chapter 5: Parts List

Line Voltage Switch

Figure 5-16. Line Voltage Switch

m043a016

Page 5 - 42 Horizon® Headwall System Service Manual

 Line Voltage Switch
Chapter 5: Parts List

Table 5-16. Line Voltage Switch

Item Number Part Number Quantity Description

1 16115 (1000-00) 2 Screw
2 32232 (1000-00) 1 Switch
3 32233 (1000-00) 1 3 way switch
4 52836 (1000-00) 1 Faceplate, dimmer switch
5 28441 (1000-00) 1 Dimmer switch
6 56878 (1000-00) 1 Insulator, decorative style
(optional)
7 52232 (1000-00) 1 Faceplate switch—almond

Horizon® Headwall System Service Manual Page 5 - 43

 Ground Receptacles
Chapter 5: Parts List

Ground Receptacles

Figure 5-17. Ground Receptacles

m043a017

Page 5 - 44 Horizon® Headwall System Service Manual

 Ground Receptacles
Chapter 5: Parts List

Table 5-17. Ground Receptacles

Item Number Part Number Quantity Description

1 16115 (1000-00) As required Screw
2 17111 (1000-00) 1 Ground receptacle, locking
3 56694 (1000-00) 1 Ground receptacle, non-locking
4 56827 (1000-00) 1 Spacer, ground receptacle
5 56825 (1000-00) 1 Lockwasher
6 50798 (1000-00) 1 Screw
7 56906 (1000-00) 1 Tie bar, dual ground (1) gang
8 52230 (1000-00) 1 Faceplate—ground receptacle—
almond
9 56903 (1000-00) 1 Faceplate—dual ground

Horizon® Headwall System Service Manual Page 5 - 45

 Night and Chart Lights
Chapter 5: Parts List

Night and Chart Lights

Figure 5-18. Night and Chart Lights

m043a018

Page 5 - 46 Horizon® Headwall System Service Manual

 Night and Chart Lights
Chapter 5: Parts List

Table 5-18. Night and Chart Lights

Item Number Part Number Quantity Description

1 983 (1000-00) 1 Locknut
2 12379 (1000-00) 1 Night light socket
3 15418 (1000-00) 1 Night light bulb
4 52398-01 (1000-00)† 1 Night light assembly
5 5239802 (1000-00)† 1 Night light assembly—emergency
power
6 5239201 (1000-00)** 1 Chart light assembly
7 5239202 (1000-00)** 1 Chart light assembly—emergency
power
8 51029 (1000-00) 1 Device—backbox, deep
9 53164 (1000-00) 1 Device—backbox, shallow
10 52122 (1000-00) 2 Lock—device plate
11 50891-02 (1000-00) 2 Screw
12 50981-08 (1000-00) 2 Screw
13 50590 (1000-00) 2 Screw
14 53744 (1000-00) 1 Faceplate
15 52024 (1000-00) 1 Faceplate—chart light
16 51548 (1000-00) 1 Faceplate louvered—almond
17 57628 (1000-00) 1 Faceplate louvered
18 52234 (1000-00) 1 Faceplate—time cable
19 56794 (1000-00) 1 Gasket
20 50292 (1000-00) 1 Pushbutton switch
21
22
52397 (1000-00)
52446 (1000-00)
1
1
Device plate—night light
Device plate—night light
5
23 52070 (1000-00) 1 Device plate—chart light
24 52447 (1000-00) 1 Device plate—chart light

† Items 4 and 5 do not include items 10 and 20.

** Items 6 and 7 do include items 10 and 20.

Horizon® Headwall System Service Manual Page 5 - 47

 Hose Panels
Chapter 5: Parts List

Hose Panels

Figure 5-19. Hose Panels

m043a019

Page 5 - 48 Horizon® Headwall System Service Manual

 Hose Panels
Chapter 5: Parts List

Table 5-19. Hose Panels

Item Number Part Number Quantity Description

1 54785 (1000-00)++ 1 Manifold access panel 48"
2 54782-01 (1000-00)++ 1 Hose panel assembly—6"
3 54782-02 (1000-00)++ 1 Hose panel assembly—12"
4 54782-03 (1000-00)++ 1 Hose panel assembly—18"
5 54782-04 (1000-00)++ 1 Hose panel assembly—24"
6 54782-05 (1000-00)++ 1 Hose panel assembly—30"
7 54782-06 (1000-00)++ 1 Hose panel assembly—36"
8 54782-07 (1000-00)++ 1 Hose panel assembly—42"
9 54782-08 (1000-00)++ 1 Access panel
10 54783-01 (1000-00)++ 1 Hose panel assembly—6"
11 54783-02 (1000-00)++ 1 Hose panel assembly—12"
12 54783-03 (1000-00)++ 1 Hose panel assembly—18"
13 54783-04 (1000-00)++ 1 Hose panel assembly—24"
14 54783-05 (1000-00)++ 1 Hose panel assembly—30"
15 54783-06 (1000-00)++ 1 Hose panel assembly—36"
16 54783-07 (1000-00)++ 1 Hose panel assembly—42"
17 54783-08 (1000-00)++ 1 Hose panel assembly—48"
18 54784-01 (1000-00)++ 1 Hose panel assembly 6"
19 54784-02 (1000-00)++ 1 Hose panel assembly 12"
20 54784-03 (1000-00)++ 1 Hose panel assembly 18"
21 54784-04 (1000-00)++ 1 Hose panel assembly 24"
22 54784-05 (1000-00)++ 1 Hose panel assembly 30"
23
24
54784-06 (1000-00)++
54784-07 (1000-00)++
1
1
Hose panel assembly 36"
Hose panel assembly 42"
5
25 54784-08 (1000-00)++ 1 Hose panel assembly 48"
26 54777-01 (1000-00)++ 1 Hose panel—6"
27 54777-02 (1000-00)++ 1 Hose panel—12"
28 54777-03 (1000-00)++ 1 Hose panel—18"
29 54777-04 (1000-00)++ 1 Hose panel—24"
30 54777-05 (1000-00)++ 1 Hose panel—30"

++ Specify wood and laminate finish.

Horizon® Headwall System Service Manual Page 5 - 49

 Hose Panels
Chapter 5: Parts List

Item Number Part Number Quantity Description

31 54777-06 (1000-00)++ 1 Hose panel—36"
32 54777-07 (1000-00)++ 1 Hose panel—42"
33 54777-08 (1000-00)++ 1 Hose panel—48"
34 54776-01 (1000-00)++ 1 Hose panel—6"
35 54776-02 (1000-00)++ 1 Hose panel—12"
36 54776-03 (1000-00)++ 1 Hose panel—18"
37 54776-04 (1000-00)++ 1 Hose panel—24"
38 54776-05 (1000-00)++ 1 Hose panel—30"
39 54776-06 (1000-00)++ 1 Hose panel—36"
40 54776-07 (1000-00)++ 1 Hose panel—42"
41 54776-08 (1000-00)++ 1 Hose panel—48"
42 54785-02 (1000-00)++ 1 Manifold access panel—12"
43 54785-03 (1000-00)++ 1 Manifold access panel—18"
44 54785-04 (1000-00)++ 1 Manifold access panel—24"
45 54785-05 (1000-00)++ 1 Manifold access panel—30"
46 54785-06 (1000-00)++ 1 Manifold access panel—36"
47 54785-07 (1000-00)++ 1 Manifold access panel—42"

++ Specify wood and laminate finish.

Page 5 - 50 Horizon® Headwall System Service Manual

 Hose Panels
Chapter 5: Parts List

NOTES:

Horizon® Headwall System Service Manual Page 5 - 51

 Manifold Tree
Chapter 5: Parts List

Manifold Tree

Figure 5-20. Manifold Tree

m043a020

Page 5 - 52 Horizon® Headwall System Service Manual

 Manifold Tree
Chapter 5: Parts List

Table 5-20. Manifold Tree

Item Number Part Number Quantity Description

1 52955-12 (1000-00) 2 O-ring, gas seal, oxygen and air
2 52955-13 (1000-00) 1 O-ring, gas seal—vacuum
3 56975 (1000-00) 1 Fitting demand valve—oxygen
4 56974 (1000-00) 1 Fitting demand valve—air
5 56976 (1000-00) 1 Fitting demand valve—vacuum
6 51438 (1000-00) 1 Protective cap—oxygen
7 51435 (1000-00) 2 Protective cap—vacuum and air
8 52171 (1000-00) 2 Clamp
9 52172 (1000-00) 2 Bracket
10 52555-04 (1000-00) 8 Screw
11 53312 (1000-00) 1 U. L. label—gas distribution
12 52273 (1000-00) 1 Label, manifold placement
13 22453 (1000-00) 1 Label—oxygen
14 22454 (1000-00) 1 Label—air
15 22455 (1000-00) 1 Label—vacuum
16 52456 (1000-00) 1 Label—warning
17 53047 (1000-00) 1 Tee assembly—vacuum
18 53046 (1000-00) 1 Tee assembly—air
19 53045 (1000-00) 1 Tee assembly—oxygen
20 52416 (1000-00) 1 Tee assembly—nitrous oxide
21 52425 (1000-00) 1 Fitting, demand valve—nitrous
oxide
22 52479 (1000-00) 1 Label—nitrous oxide
5

Horizon® Headwall System Service Manual Page 5 - 53

 Low Voltage Switch
Chapter 5: Parts List

Low Voltage Switch

Figure 5-21. Low Voltage Switch

m043a038

Page 5 - 54 Horizon® Headwall System Service Manual

 Low Voltage Switch
Chapter 5: Parts List

Table 5-21. Low Voltage Switch

Item Number Part Number Quantity Description

1 53164 (1000-00) 1 Backbox device—shallow
2 52553 (1000-00) 5 Wire tie
3 50128 (1000-00) 4 Mount, wire tie
4 52122 (1000-00) 2 Lock—device plate
5 50891-02 (1000-00) 2 Screw
6 52145 (1000-00) 1 Device plate—notched
7 52838 (1000-00) 1 Faceplate—read/indirect
8 53224 (1000-00) 1 Switch—modified
9 50590 (1000-00) 2 Screw

Horizon® Headwall System Service Manual Page 5 - 55

 SideCom Communication System Receptacle
Chapter 5: Parts List

SideCom Communication System Receptacle

Figure 5-22. SideCom Communication System Receptacle

m043a039

Page 5 - 56 Horizon® Headwall System Service Manual

 SideCom Communication System Receptacle
Chapter 5: Parts List

Table 5-22. SideCom Communication System Receptacle

Item Number Part Number Quantity Description

1 53164 (1000-00) 1 Backbox, device
2 52553 (1000-00) 5 Wire tie
3 50128 (1000-00) 4 Wire tie mount
4 52122 (1000-00) 2 Lock, device plate—notched
5 16115 (1000-00) 4 Screw
6 52145 (1000-00) 1 Device plate—notched
7 SP285 (1000-00) 1 Cable connector assembly
8 50590 (1000-00) 4 Screw
9 29246 (1000-00) 1 Sleeve
10 31591 (1000-00) 1 Dummy plug assembly
11 52231 (1000-00) 1 SideCom faceplate—almond

Horizon® Headwall System Service Manual Page 5 - 57

 Low Voltage Controller
Chapter 5: Parts List

Low Voltage Controller

Figure 5-23. Low Voltage Controller

m043a041

Page 5 - 58 Horizon® Headwall System Service Manual

 Low Voltage Controller
Chapter 5: Parts List

Table 5-23. Low Voltage Controller

Item Number Part Number Quantity Description

1 54632-01 (1000-00) 1 Controller, complete—120V
2 54632-02 (1000-00) 1 Controller, complete—240V
3 54632-03 (1000-00) 1 Controller, complete—277V

Horizon® Headwall System Service Manual Page 5 - 59

 Low Voltage Controller
Chapter 5: Parts List

NOTES:

Page 5 - 60 Horizon® Headwall System Service Manual

 Chapter 6
General Procedures

Chapter Contents

Cleaning and Care. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 3

General Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 3
Steam Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 3
Disinfection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 3
Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 4
Preventive Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 4
Preventive Maintenance Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 6
Tool and Supply Requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 7
Line Isolation Monitor Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 7
Installation and Post Installation Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 7

Horizon® Headwall System Service Manual Page 6 - 1

 Chapter 6: General Procedures

NOTES:

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 Cleaning and Care
Chapter 6: General Procedures

Cleaning and Care

WARNING:
When following these procedures you must adhere to the “Infection
Control Policies and Procedures” outlined in the Exposure Control Plan.
Not following these procedures could cause the spread of infection.

SHOCK HAZARD:
Locate the involved power supply circuit breaker panel. Set the involved
circuit breaker (A) to OFF (see figure 4-1 on page 4-3). Failure to follow
this procedure could cause serious injury and damage to the
equipment.

General Cleaning
Do not use excessive water. Clean the unit with a lightly dampened cloth and
ordinary cleaners and disinfectants.

Use neutral soap suds and lukewarm water to remove soil or stains. Then, rinse
with clean water and dry.

CAUTION:
Do not use harsh cleaners, solvents, or detergents.

Steam Cleaning
Do not use any steam cleaning device on the Horizon Headwall System. The
excessive moisture can damage electrical components in the Horizon Headwall
System.

Disinfection
Dilute disinfectants and/or germicides as specified on the manufacturer’s label.

Horizon® Headwall System Service Manual Page 6 - 3

 Preventive Maintenance
Chapter 6: General Procedures

Preventive Maintenance
The Horizon Headwall System must have an effective maintenance program.
We recommend that you perform preventive maintenance and testing for Joint
Commission on Accreditation of Health care Organizations (JCAHO)
annually. This not only meets JCAHO requirements, but will help to ensure a
long and productive life for the Horizon Headwall System. This will help
minimize downtime due to excessive wear failures.

The preventive maintenance schedule that follows is intended to guide the

technician through a normal preventive maintenance procedure on the Horizon
Headwall System. Check each item on the schedule, and make any necessary
adjustments during the preventive maintenance process.

The preventive maintenance schedule is intended to be used in conjunction

with the preventive maintenance checklist following it. This checklist is
designed to keep a running history of maintenance and subsequent repair costs
for one individual Horizon Headwall System. However, the facility can modify
this checklist or invent another to fit their needs. Keeping close records and
maintaining the Horizon Headwall System and its accessories are two good
ways of reducing downtime and at the same time, keeping the nursing staff
happy and efficient.

Pay particular attention to the safety features regarding the Horizon Headwall
System such as:
• Mounting configuration of the Horizon Headwall System
• Electrical receptacles
• Leaks in the gas delivery system

Preventive Maintenance Schedule

Table 6-1. Preventive Maintenance Schedule

Function Procedure
Power cables Inspect all cables for good condition and possible cracking

6 Circuit breakers
or cuts or pinches in insulating coverings.
Turn the breaker off and on to check proper function.
Power indicator light Check that the Bed receptacle indicator is on. See “Bed
Receptacle or Indicator Is Inoperative” on page 2-6.
Electrical receptacles Check all receptacles for proper ground conductor extrac-
tive force. The extraction force should be four ounces with
a 0.184 (4.67 mm) diameter pin.

Page 6 - 4 Horizon® Headwall System Service Manual

 Preventive Maintenance
Chapter 6: General Procedures

Function Procedure
Electrical connections Check all electrical connections for tightness and tighten as
needed.
Ceiling support Inspect the ceiling chase hanger bracket. Compare to the
installation drawings provided by the manufacturer.
Gas supply conduit Inspect all joints in the Horizon Headwall System for gas
and hoses leaks. Inspect hoses for cracking, wear, collapse, or
leakage.
Line isolation monitor Test the function of the line isolation monitor monthly. See
(if equipped) “Line Isolation Monitor Test” on page 6-7.
General appearance Check cleanliness. See “Cleaning and Care” on page 6-3 if
needed.

Horizon® Headwall System Service Manual Page 6 - 5

 Preventive Maintenance
Chapter 6: General Procedures

Preventive Maintenance Checklist

Table 6-2. Preventive Maintenance Checklist

Date
Function
Power cables
Hill-Rom Company I

Manufacturer

Circuit breakers
Power indicator light
Electrical receptacles
Electrical connections

Ceiling support
Model Number

Gas supply conduit &

hoses
Overall appearance
Serial Number

Labor Time:
for This Page
Total Charge

Repair Cost:

6 Inspected By:
Remarks
Applicable

O=Okay

R=Repair or
N=Not

Legend
Replace

A=Adjust
C=Clean

Page 6 - 6 Horizon® Headwall System Service Manual

 Tool and Supply Requirements
Chapter 6: General Procedures

Tool and Supply Requirements

Tools that may be required for maintenance on the Horizon Headwall System
are listed below:
• Flathead screwdriver
• Phillips head screwdriver
• Pliers
• Adjustable wrench
• Voltmeter
• Teflon tape

Line Isolation Monitor Test

To test the line isolation monitor alarm, press the test momentary contact
switch for about 7 seconds. The following results indicate that the line isolation
monitor is working properly:
• The meter goes into the alarm position (red zone).
• The output relay energizes.
• The green “safe” light is not illuminated.
• The red hazard LEDs (both L1 and L2) illuminate.

Installation and Post Installation Inspection

• Hill-Rom will supply the hanger bracket consisting of a steel wall plate and
ceiling plate. The ceiling plate provides knockouts for building service
connections to the vertical chase. Additional structural support bracketing
and hardware (if required) may be purchased.
• Complete installation instructions are supplied with every Horizon
Headwall System. These instructions take into account the variations in
each system as ordered.
• In seismic code areas, contact Hill-Rom for additional information
concerning installation.
6

Horizon® Headwall System Service Manual Page 6 - 7

 Installation and Post Installation Inspection
Chapter 6: General Procedures

• The mechanical contractor shall install and provide primary connections to

the Horizon System medical gas manifold as detailed on the drawings. The
mechanical contractor will perform and certify all pressure tests as required
by NFPA 56F (non-flammable medical gas systems) and any local codes.
• The electrical contractor shall furnish and install conduit to the hanger
bracket knockout plate with wiring. The contractor will make the
connection of building services to the pre-wired junction box as shown in
the electrical drawings in the installation instructions.
• After installation, the electrical contractor shall be responsible for checking
the entire system for proper operation.
• Upon request, a Hill-Rom representative may periodically check with the
contractor during initial installation and assist the contractor in final check
to make certain the installation is in operating condition. (The final
certification shall be the responsibility of the electrical and mechanical
contractors for their portions of the installation.)

Page 6 - 8 Horizon® Headwall System Service Manual

 Chapter 7
Accessories

Chapter Contents

This revision of the Horizon Headwall System Service Manual does not
contain any additional information for accessories.

7
Horizon® Headwall System Service Manual Page 7 - 1
 Chapter 7: Accessories

NOTES:

7
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