ANSI/ASHRAE/IES Addenda ce and cp to

ANSI/ASHRAE/IESNA Standard 90.1-2007

ASHRAE ADDENDA
Energy Standard for
Buildings Except
Low-Rise
Residential Buildings
Approved by the ASHRAE Standards Committee on June 26, 2010; by the ASHRAE Board of Directors on
June 30, 2010; by the IES Board of Directors on June 23, 2010; and by the American National Standards Insti-
tute on July 1, 2010.

These addenda were approved by a Standing Standard Project Committee (SSPC) for which the Standards
Committee has established a documented program for regular publication of addenda or revisions, including
procedures for timely, documented, consensus action on requests for change to any part of the standard. The
change submittal form, instructions, and deadlines may be obtained in electronic form from the ASHRAE Web
site (www.ashrae.org) or in paper form from the Manager of Standards.

The latest edition of an ASHRAE Standard may be purchased on the ASHRAE Web site (www.ashrae.org) or
from ASHRAE Customer Service, 1791 Tullie Circle, NE, Atlanta, GA 30329-2305. E-mail:
orders@ashrae.org. Fax: 404-321-5478. Telephone: 404-636-8400 (worldwide), or toll free 1-800-527-4723
(for orders in US and Canada). For reprint permission, go to www.ashrae.org/permissions.

© Copyright 2010 American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc.

ISSN 1041-2336

American Society of Heating, Refrigerating

and Air-Conditioning Engineers, Inc.
1791 Tullie Circle NE, Atlanta, GA 30329
www.ashrae.org
 ASHRAE STANDING STANDARD PROJECT COMMITTEE 90.1
Cognizant TC: TC 7.6, Systems Energy Utilization
SPLS Liaison: Doug Reindl · ASHRAE Staff Liaison: Steven C. Ferguson · IESNA Liaison: Rita M. Harrold
Mr Michael CA Schwedler* Chair
Mr Mark M Hydeman* Co-Vice Chair
Mr Stephen V Skalko, PE* Co-Vice Chair
Ms Susan Isenhour Anderson* Member
Mr Wagdy A Y Anis, FAIA* Member
Mr Peter A Baselici* Member
Mr Jeffrey G Boldt* Member
Mr David J Branson* Member
Mr Keith I Emerson* Member
Mr Drake H Erbe* Member
Mr James A Garrigus* Member
Mr Jason John Glazer* Member
Mr Pekka Hakkarainen* Member
Mr Richard Heinisch* Member
Mr Ned B Heminger* Member
Mr John F Hogan, AIA, PE* Member
Mr Hyman M Kaplan* Member
Mr Michael D Lane, LC* Member
Mr Richard Lord* Member
Mr Ronald Majette* Member
Dr Itzhak H Maor, PHD* Member
Mr James Patrick McClendon* Member
Mr Michael W Mehl* Member
Mr Harry P Misuriello* Member
Mr Frank T Morrison* Member
Mr Timothy M Peglow* Member
Mr Eric E Richman* Member
Mr Leonard C Sciarra* Member
Dr Maria Spinu* Member
Mr Christian R Taber* Member
Mr Michael Tillou* Member
Ms Martha G VanGeem, PE* Member
Mr Michael Waite* Member
Mr Mchenry Wallace, Jr* Member
Mr Richard D Watson* Member
Mr Jerry W White, Jr* Member
Mr Ron Burton* Organizational
Mr Charles C Cottrell* Organizational
Mr S Craig Drumheller* Organizational
Mr Allan B. Fraser* Organizational
Mr Ronald D Kurtz* Organizational
Mr Steven Rosenstock, PE* Organizational
Mr Frank A Stanonik* Organizational
Mr Ernest A Conrad Alternate Org
Mr Chad Groshart Alternate Org
Dr Merle F McBride Alternate Org
Mr Kenneth Sagan Alternate Org
Mr Randall Blanchette Subcommittee
Mr Donald M Brundage, PE Subcommittee
Mr Brian David Hahnlen Subcommittee
Ms Susanna S Hanson Subcommittee
Mr Jonathan Humble Subcommittee
Mr Raymond Frank McGowan Subcommittee
Mr Michael I Rosenberg Subcommittee
Ms Martha (Marty) Gail Salzberg Subcommittee
Mr Jeffrey R Stein Subcommittee
Mr Wayne Stoppelmoor Subcommittee
Mr William J Talbert Subcommittee
Mr Daniel J Walker, PE Subcommittee

*Denotes members of voting status when the document was approved for publication.
 © American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (www.ashrae.org).
For personal use only. Additional reproduction, distribution, or transmission in either print or
digital form is not permitted without ASHRAE's prior written permission.

ASHRAE STANDARDS COMMITTEE 2009–2010

Steven T. Bushby, Chair Merle F. McBride
H. Michael Newman, Vice-Chair Frank Myers
Douglass S. Abramson Janice C. Peterson
Robert G. Baker Douglas T. Reindl
Michael F. Beda Lawrence J. Schoen
Hoy R. Bohanon, Jr. Boggarm S. Setty
Kenneth W. Cooper Bodh R. Subherwal
K. William Dean James R. Tauby
Martin Dieryckx James K. Vallort
Allan B. Fraser William F. Walter
Nadar R. Jayaraman Michael W. Woodford
Byron W. Jones Craig P. Wray
Jay A. Kohler Wayne R. Reedy, BOD ExO
Carol E. Marriott Thomas E. Watson, CO
Stephanie Reiniche, Manager of Standards

SPECIAL NOTE
This American National Standard (ANS) is a national voluntary consensus standard developed under the auspices of the American
Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE). Consensus is defined by the American National Standards
Institute (ANSI), of which ASHRAE is a member and which has approved this standard as an ANS, as “substantial agreement reached by
directly and materially affected interest categories. This signifies the concurrence of more than a simple majority, but not necessarily unanimity.
Consensus requires that all views and objections be considered, and that an effort be made toward their resolution.” Compliance with this
standard is voluntary until and unless a legal jurisdiction makes compliance mandatory through legislation.
ASHRAE obtains consensus through participation of its national and international members, associated societies, and public review.
ASHRAE Standards are prepared by a Project Committee appointed specifically for the purpose of writing the Standard. The Project
Committee Chair and Vice-Chair must be members of ASHRAE; while other committee members may or may not be ASHRAE members, all
must be technically qualified in the subject area of the Standard. Every effort is made to balance the concerned interests on all Project
Committees.
The Manager of Standards of ASHRAE should be contacted for:
a. interpretation of the contents of this Standard,
b. participation in the next review of the Standard,
c. offering constructive criticism for improving the Standard, or
d. permission to reprint portions of the Standard.

DISCLAIMER
ASHRAE uses its best efforts to promulgate Standards and Guidelines for the benefit of the public in light of available information and
accepted industry practices. However, ASHRAE does not guarantee, certify, or assure the safety or performance of any products, components,
or systems tested, installed, or operated in accordance with ASHRAE’s Standards or Guidelines or that any tests conducted under its
Standards or Guidelines will be nonhazardous or free from risk.

ASHRAE INDUSTRIAL ADVERTISING POLICY ON STANDARDS

ASHRAE Standards and Guidelines are established to assist industry and the public by offering a uniform method of testing for rating
purposes, by suggesting safe practices in designing and installing equipment, by providing proper definitions of this equipment, and by providing
other information that may serve to guide the industry. The creation of ASHRAE Standards and Guidelines is determined by the need for them,
and conformance to them is completely voluntary.
In referring to this Standard or Guideline and in marking of equipment and in advertising, no claim shall be made, either stated or implied,
that the product has been approved by ASHRAE.
 © American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (www.ashrae.org).
For personal use only. Additional reproduction, distribution, or transmission in either print or
digital form is not permitted without ASHRAE's prior written permission.

(This foreword is not part of this standard. It is merely 2. conference, meeting rooms, and training rooms,
informative and does not contain requirements necessary 3. employee lunch and break rooms.,
for conformance to the standard. It has not been 4. storage and supply rooms between 50 ft2and 1000
processed according to the ANSI requirements for a ft2,
standard and may contain material that has not been 5. rooms used for document copying and printing,
subject to public review or a consensus process. 6. office spaces up to 250 ft2,
Unresolved objectors on informative material are not 7. restrooms
offered the right to appeal at ASHRAE or ANSI.) 8. dressing, locker, and fitting rooms.

FOREWORD Exceptions to 9.4.1.2 (ba):

a. Spaces with multi-scene lighting control systems
This additional control requires that all spaces (unless b. Shop and laboratory classrooms
exempted) have multilevel control capability (also commonly c. Spaces where an automatic shutoff would endanger
known as bi-level switching). A study by Heschong Mahone the safety or security of the room or building occu-
Group notes that energy savings varies between 8 - 22 percent pant(s)
for bi-level control depending on the space type. IES paper d. Lighting required for 24-hour operation
#34 by Rensselaer Polytechnic Institute (RPI), “Occupant Use
of Manual Controls in Private Offices” notes that 74 percent b.c. For all other spaces spaces not included in 9.4.1.2(b), each
of a sample reduced their lighting for savings of 9 percent. control device shall be activated either manually by an
Another RPI study “Individual Lighting Control for Offices” occupant or automatically by sensing an occupant. Each
claims savings from occupant lighting reduction is 35-42 per- control device shall control a maximum of 2500 ft2 area
cent. for a space 10,000 ft2 or less and a maximum of 10,000 ft2
Note: Section 9.4.1.2 b) was modified by addendum x to area for a space greater than 10,000 ft2. The occupant
90.1-2007. This change is shown relative to that published shall be able to override any time-of-day scheduled shut-
addendum rather than to 90.1-2007. off control for no more than two hours.
Note: In this addendum, changes to the current standard
are indicated in the text by underlining (for additions) and Modify the Standard as follows (SI Units)
strikethrough (for deletions) unless the instructions specifi-
Modify 9.4.1.2 as follows:
cally mention some other means of indicating the changes.
9.4.1.2 Space Control. Each space enclosed by ceiling
Addendum ce to 90.1-2007 height partitions shall have at least one control device to inde-
pendently control the general lighting within the space. Each
Modify the Standard as follows (I-P Units) manual device shall be readily accessible and located so the
occupants can see the controlled lighting. All controlled light-
Modify 9.4.1.2 as follows: ing shall meet the following requirements:

9.4.1.2 Space Control. Each space enclosed by ceiling a. The controlled lighting shall have at least one control step
height partitions shall have at least one control device to inde- between 30% and 70% (inclusive) of full lighting power
pendently control the general lighting within the space. Each in addition to all off.
manual device shall be readily accessible and located so the Exception to 9.4.1.2 (a):
occupants can see the controlled lighting All controlled light- a. Lights in corridors, electrical/mechanical rooms,
ing shall meet the following requirements: public lobbies, restrooms, stairways, and storage
rooms
a. The controlled lighting shall have at least one control step b. Spaces with only one luminaire with rated input
between 30% and 70% (inclusive) of full lighting power power less than 100 W.
in addition to all off. c. Spaces types with allowed lighting power densities
Exception to 9.4.1.2 (a): allowance of less than 6 W/m2 (see table 9.6.1).
a. Lights in corridors, electrical/mechanical rooms,
public lobbies, restrooms, stairways, and storage a.b. An occupant sensor shall be installed that automatically
rooms turns lighting off within 30 minutes of all occupants leav-
b. Spaces with only one luminaire with rated input ing a space in
power less than 100 W. 1. classrooms and lecture halls,
c. Spaces types with allowed lighting power densities 2. conference, meeting rooms, and training rooms,
allowance of less than 0.6 W/ft2 (see table 9.6.1). 3. employee lunch and break rooms.,
4. storage and supply rooms up to 15.24 m2 and 304.8
a.b. An occupant sensor or a timer switch shall be installed m2,
that automatically turns lighting off within 30 minutes of 5. rooms used for document copying and printing,
all occupants leaving a space in
6. office spaces up to 76.2 m2,
1. classrooms and lecture halls, 7. restrooms

2 ANSI/ASHRAE/IESNA Addenda ce and cp to ANSI/ASHRAE/IESNA Standard 90.1-2007

 © American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (www.ashrae.org).
For personal use only. Additional reproduction, distribution, or transmission in either print or
digital form is not permitted without ASHRAE's prior written permission.

8. dressing, locker, and fitting rooms. d. Lighting required for 24-hour operation
Exceptions to 9.4.1.2 (ba):
b.c. For spaces not included in 9.4.1.2(b), each control device
a. Spaces with multi-scene lighting control systems
shall be activated either manually by an occupant or auto-
b. Shop and laboratory classrooms matically by sensing an occupant. Each control device
c. Spaces where an automatic shutoff would endanger shall control a maximum of 2500 ft2 area for a space
the safety or security of the room or building occu- 10,000 ft2 or less and a maximum of 10,000 ft2 area for a
pant(s) space greater than 10,000 ft2. The occupant shall be able

ANSI/ASHRAE/IESNA Addenda ce and cp to ANSI/ASHRAE/IESNA Standard 90.1-2007 3

 © American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (www.ashrae.org).
For personal use only. Additional reproduction, distribution, or transmission in either print or
digital form is not permitted without ASHRAE's prior written permission.

to override any time-of-day scheduled shutoff control for Heat Pumps with Heat Recovery capability; the EER and
no more than two hours. IEER values will be 0.2 lower due to the pressure drop in the
refrigerant system to achieve heat recovery operation. Higher
(This foreword is not part of this standard. It is merely IEER levels are being proposed as these products are primar-
informative and does not contain requirements necessary ily designed to operate in zoning applications and at part-load
for conformance to the standard. It has not been conditions. The first phase of IEER values is effective immedi-
processed according to the ANSI requirements for a ately, while the second phase will become effective on July 1,
standard and may contain material that has not been 2012.
subject to public review or a consensus process.
Note: In this addendum, changes to the current standard
Unresolved objectors on informative material are not
are indicated in the text by underlining (for additions) and
offered the right to appeal at ASHRAE or ANSI.)
strikethrough (for deletions) unless the instructions specifi-
FOREWORD cally mention some other means of indicating the changes.

Variable Refrigerant Flow (VRF) systems are variable-

speed, multi-split air conditioners and heat pumps used in Addendum cp to 90.1-2007
many buildings covered by ASHRAE 90.1. Some of the heat
pump systems are capable of heat recovery operations, provid- Modify the Standard as follows (I-P Units)
ing simultaneous heating and cooling. Although VRF systems
were introduced in Japan and Europe more than 20 years ago, Add definition for VRF systems in Section 3 as follows:
they are just beginning to penetrate the U.S. market. In the
past five years, the U.S. demand for VRF systems has Variable Refrigerant Flow (VRF) System: An engineered
increased significantly, prompting the need to establish mini- direct expansion (DX) multi-split system incorporating at
mum energy efficiency requirements for these products. least one variable capacity compressor distributing refrigerant
This proposal establishes, for the first time in ASHRAE through a piping network to multiple indoor fan coil units each
90.1, efficiency requirements for VRF air conditioners and capable of individual zone temperature control, through inte-
heat pumps, including heat pumps that use a water source for gral zone temperature control devices and common commu-
heat rejection. Including these values ensures that ASHRAE nications network. Variable refrigerant flow utilizes three or
90.1 is up-to-date, and recognizes a new technology. more steps of control on common, inter-connecting piping.
The cooling EERs and heating COPs are proposed for a
full range of product cooling capacities at standard rating Add the following to 6.4.1.1:
conditions listed in AHRI Standard 1230, The AHRI standard
was first published in November 2009 and contains test proce- h. Table 6.8.1 K-Heat Transfer Equipment
dures for such equipment. In addition, AHRI is developing a i. Table 6.8.1 L- Variable Refrigerant Flow Air Condition-
certification program for this equipment and expects to launch ers
it later in 2010. The proposed SEER, HSPF, EER, and COP j. Table 6.8.1 M- Variable Refrigerant Flow Air-to-Air and
levels are identical to the minimum efficiencies for conven- Applied Heat Pumps
tional ducted air cooled air conditioners and applied heat
pumps listed in ASHRAE 90.1. The only exception is for VRF Add Tables 6.8.1L and M

TABLE 6.8.1L Electrically Operated Variable Refrigerant Flow Air Conditioners—

Minimum Efficiency Requirements

Heating Sub-Category or Test

Equipment Type Size Category Minimum Efficiency
Section Type Rating Condition Procedure

4 ANSI/ASHRAE/IESNA Addenda ce and cp to ANSI/ASHRAE/IESNA Standard 90.1-2007

 © American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (www.ashrae.org).
For personal use only. Additional reproduction, distribution, or transmission in either print or
digital form is not permitted without ASHRAE's prior written permission.

TABLE 6.8.1L Electrically Operated Variable Refrigerant Flow Air Conditioners—

Minimum Efficiency Requirements

VRF Multi-split Sys-

<65,000 Btu/h All 13.0 SEER
tem
11.2 EER
≥65,000 Btu/h and Electric Resis- VRF Multi-split Sys-
<135,000 Btu/h tance (or none) tem 12.5 IEER
VRF Air Conditioners, 13.1 IEER (as of 7/1/2012)
AHRI 1230
Air Cooled 11.0 EER
≥135,000 Btu/h and Electric Resis- VRF Multi-split Sys-
12.3 IEER
<240,000 Btu/h tance (or none) tem
12.9 IEER (as of 7/1/2012)
10.0 EER
Electric Resis- VRF Multi-split Sys-
≥240,000 Btu/h 11.1 IEER
tance (or none) tem
11.6 IEER (as of 7/1/2012)

TABLE 6.8.1M Electrically Operated Variable Refrigerant Flow Air-to-Air and Applied Heat Pumps— Minimum
Efficiency Requirements

Heating Section Sub-Category or Rat- Minimum Effi-

Equipment Type Size Category Test Procedure
Type ing Condition ciency
<65,000 Btu/h All VRF Multi-split System 13.0 SEER
11.0 EER
≥65,000 Btu/h and Electric Resistance 12.3 IEER
VRF Multi-split System
<135,000 Btu/h (or none) 12.9 IEER (as of 7/
1/2012)
10.8 EER
≥65,000 Btu/h and Electric Resistance VRF Multi-split System 12.1 IEER
<135,000 Btu/h (or none) with Heat Recovery 12.7 IEER (as of 7/
1/2012)
10.6 EER
≥135,000 Btu/h and Electric Resistance 11.8 IEER
VRF Multi-split System
<240,000 Btu/h (or none) 12.3 IEER (as of 7/
VRF Air Cooled,
1/2012) AHRI 1230
(cooling mode)
10.4 EER
VRF Multi-split
≥135,000 Btu/h and Electric Resistance 11.6 IEER
System with Heat
<240,000 Btu/h (or none) 12.1 IEER (as of 7/
Recovery
1/2012)
9.5 EER
Electric Resistance
10.6 IEER
≥240,000 Btu/h (or none) VRF Multi-split System
11.0 IEER (as of 7/
1/2012)
9.3 EER
Electric Resistance
VRF Multi-split System 10.4 IEER
≥240,000 Btu/h (or none)
with Heat Recovery 10.8 IEER (as of 7/
1/2012)

ANSI/ASHRAE/IESNA Addenda ce and cp to ANSI/ASHRAE/IESNA Standard 90.1-2007 5

 © American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (www.ashrae.org).
For personal use only. Additional reproduction, distribution, or transmission in either print or
digital form is not permitted without ASHRAE's prior written permission.

TABLE 6.8.1M Electrically Operated Variable Refrigerant Flow Air-to-Air and Applied Heat Pumps— Minimum
Efficiency Requirements

VRF Multi-split systems

<65,000 Btu/h All 12.0 EER
86ºF entering water
VRF Multi-split systems
<65,000 Btu/h All with Heat Recovery 11.8 EER
86ºF entering water
≥65,000 Btu/h and VRF Multi-split System
All 12.0 EER
<135,000 Btu/h 86ºF entering water
VRF Water source
VRF Multi-split System AHRI 1230
(cooling mode) ≥65,000 Btu/h and
All with Heat Recovery 11.8 EER
<135,000 Btu/h
86ºF entering water
VRF Multi-split System
≥135,000 Btu/h All 10.0 EER
86ºF entering water
VRF Multi-split System
≥135,000 Btu/h All with Heat Recovery 9.8 EER
86ºF entering water
VRF Multi-split System
<135,000 Btu/h All 16.2 EER
59ºF entering water
VRF Multi-split System
<135,000 Btu/h All with Heat Recovery 16.0 EER
VRF Groundwater 59ºF entering water
source (cooling AHRI 1230
VRF Multi-split System
mode) ≥135,000 Btu/h All 13.8 EER
59ºF entering water
VRF Multi-split System
≥135,000 Btu/h All with Heat Recovery 13.6 EER
59ºF entering water
VRF Multi-split System
<135,000 Btu/h All 13.4 EER
77ºF entering water
VRF Multi-split System
<135,000 Btu/h All with Heat Recovery 13.2 EER
VRF Ground source 77ºF entering water
AHRI 1230
(cooling mode) VRF Multi-split System
≥135,000 Btu/h All 11.0 EER
77ºF entering water
VRF Multi-split System
≥135,000 Btu/h All with Heat Recovery 10.8 EER
77ºF entering water

6 ANSI/ASHRAE/IESNA Addenda ce and cp to ANSI/ASHRAE/IESNA Standard 90.1-2007

 © American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (www.ashrae.org).
For personal use only. Additional reproduction, distribution, or transmission in either print or
digital form is not permitted without ASHRAE's prior written permission.

TABLE 6.8.1M Electrically Operated Variable Refrigerant Flow Air-to-Air and Applied Heat Pumps— Minimum
Efficiency Requirements

<65,000 Btu/h
--- VRF Multi-split System 7.7 HSPF
(cooling capacity)
VRF Multi-split system
47ºF db/43ºF
3.3 COP
≥65,000 Btu/h and wb outdoor air
<135,000 Btu/h ---
(cooling capacity)
2.25 COP
VRF Air Cooled 17ºF db/15ºF wb out-
AHRI 1230
(heating mode) door air
VRF Multi-split System
47ºF db/43ºF
3.2 COP
wb outdoor air
≥135,000 Btu/h
---
(cooling capacity)
2.05 COP
17ºF db/15ºF wb out-
door air
<135,000 Btu/h VRF Multi-split System
--- 4.2 COP
VRF Water source (cooling capacity) 68ºF entering water
AHRI 1230
(heating mode) ≥135,000 Btu/h VRF Multi-split System
--- 3.9 COP
(cooling capacity) 68ºF entering water
<135,000 Btu/h VRF Multi-split System
VRF Groundwater --- 3.6 COP
(cooling capacity) 50ºF entering water
source AHRI 1230
(heating mode) ≥135,000 Btu/h VRF Multi-split System
--- 3.3 COP
(cooling capacity) 50ºF entering water
<135,000 Btu/h VRF Multi-split System
--- 3.1 COP
VRF Ground source (cooling capacity) 32ºF entering water
AHRI 1230
(heating mode) ≥135,000 Btu/h VRF Multi-split System
--- 2.8 COP
(cooling capacity) 32ºF entering water

Add the following reference to Section 12 (under Air- Add definition for VRF systems in Section 3 as follows:
Conditioning, Heating, and Refrigeration Institute)
Variable Refrigerant Flow (VRF) System. An engineered
Modify the Standard as follows (SI Units) direct expansion (DX) multi-split system incorporating at

ANSI/ASHRAE/IESNA Addenda ce and cp to ANSI/ASHRAE/IESNA Standard 90.1-2007 7

 © American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (www.ashrae.org).
For personal use only. Additional reproduction, distribution, or transmission in either print or
digital form is not permitted without ASHRAE's prior written permission.

Performance Rating of Variable Refrigerant Flow (VRF) Multi-split Air-Condition-

AHRI 1230-2010
ing and Heat Pump Equipment

least one variable capacity compressor distributing refrigerant h. Table 6.8.1 K-Heat Transfer Equipment
through a piping network to multiple indoor fan coil units each i. Table 6.8.1 L- Variable Refrigerant Flow Air Condition-
capable of individual zone temperature control, through inte- ers
gral zone temperature control devices and common commu-
nications network. Variable refrigerant flow utilizes three or j. Table 6.8.1 M- Variable Refrigerant Flow Air-to-Air and
more steps of control on common, inter-connecting piping. Applied Heat Pumps

Add the following to 6.4.1.1: Add Tables 6.8.1L and M)

TABLE 6.8.1L Electrically Operated Variable Refrigerant Flow Air Conditioners—

Minimum Efficiency Requirements

Heating Sub-Category or Test Proce-

Equipment Type Size Category Minimum Efficiency
Section Type Rating Condition dure
VRF Multi-split
<19 kW All 3.81 SCOP
System
3.28 COP
Electric Resis- VRF Multi-split
≥19 kW and <40 kW
tance (or none) System 3.66 ICOP
VRF Air Conditioners, 3.84 ICOP (as of 7/1/2012)
AHRI 1230
Air Cooled 3.22 COP
Electric Resis- VRF Multi-split
≥40 kW and <70 kW 3.60 ICOP
tance (or none) System
3.78 ICOP (as of 7/1/2012)
2.93 COP
Electric Resis- VRF Multi-split
≥70 kW 3.25 ICOP
tance (or none) System
3.40 ICOP (as of 7/1/2012)

TABLE 6.8.1M Electrically Operated Variable Refrigerant Flow Air-to-Air and Applied Heat Pumps — Minimum
Efficiency Requirements

Heating Section Sub-Category or

Equipment Type Size Category Minimum Efficiency Test Procedure
Type Rating Condition

8 ANSI/ASHRAE/IESNA Addenda ce and cp to ANSI/ASHRAE/IESNA Standard 90.1-2007

 © American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (www.ashrae.org).
For personal use only. Additional reproduction, distribution, or transmission in either print or
digital form is not permitted without ASHRAE's prior written permission.

TABLE 6.8.1M Electrically Operated Variable Refrigerant Flow Air-to-Air and Applied Heat Pumps — Minimum
Efficiency Requirements

VRF Multi-split
<19 kW All 3.81 SCOPC
System
3.22 COPC
Electric Resistance VRF Multi-split 3.60 ICOP
≥19 kW and <40 kW
(or none) System 3.78 ICOP (as of 7/1/
2012)
3.16 COPC
VRF Multi-split Sys-
Electric Resistance 3.55 ICOP
≥19 kW and <40 kW tem with Heat Recov-
(or none) 3.72 ICOP (as of 7/1/
ery
2012)
3.11 COPC
≥40 kW Btu/h and Electric Resistance VRF Multi-split 3.46 ICOP
VRF Air Cooled, <70 kW (or none) System 3.60 ICOP (as of 7/1/
AHRI 1230
(cooling mode) 2012)
3.05 COPC
VRF Multi-split
Electric Resistance 3.40 ICOP
≥40 kW and <70 kW System with Heat
(or none) 3.55 ICOP (as of 7/1/
Recovery
2012)
2.78 COPC
Electric Resistance VRF Multi-split 3.11 ICOP
≥70 kW
(or none) System 3.22 ICOP (as of 7/1/
2012)
2.73 COPC
VRF Multi-split Sys-
Electric Resistance 3.05 ICOP
≥70 kW tem with Heat
(or none) 3.16 ICOP (as of 7/1/
Recovery
2012)
VRF Multi-split
<19 kW All systems 3.52 COPC
30ºC entering water
VRF Multi-split sys-
tems with Heat
<19 kW All 3.46 COPC
Recovery
30ºC entering water
VRF Multi-split Sys-
≥19 kW and
All tem 3.52 COPC
<40 kW
30ºC entering water
VRF Water source
VRF Multi-split Sys- AHRI 1230
(cooling mode)
≥19 kW and tem with Heat
All 3.46 COPC
<40 kW Recovery
30ºC entering water
VRF Multi-split
≥40 kW All System 2.93 COPC
30ºC entering water
VRF Multi-split Sys-
tem with Heat
≥40 kW All 2.87 COPC
Recovery
30ºC entering water

ANSI/ASHRAE/IESNA Addenda ce and cp to ANSI/ASHRAE/IESNA Standard 90.1-2007 9

 © American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (www.ashrae.org).
For personal use only. Additional reproduction, distribution, or transmission in either print or
digital form is not permitted without ASHRAE's prior written permission.

TABLE 6.8.1M Electrically Operated Variable Refrigerant Flow Air-to-Air and Applied Heat Pumps — Minimum
Efficiency Requirements

VRF Multi-split
<40 kW All System 4.75 COPC
15ºC entering water
VRF Multi-split Sys-
tem with Heat
<40 kW All 4.69 COPC
Recovery
VRF Groundwater 15ºC entering water
source AHRI 1230
(cooling mode) VRF Multi-split
≥40 kW All System 4.04 COPC
15ºC entering water
VRF Multi-split Sys-
tem with Heat
≥40 kW All 3.98 COPC
Recovery
15ºC entering water

10 ANSI/ASHRAE/IESNA Addenda ce and cp to ANSI/ASHRAE/IESNA Standard 90.1-2007

 © American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (www.ashrae.org).
For personal use only. Additional reproduction, distribution, or transmission in either print or
digital form is not permitted without ASHRAE's prior written permission.

TABLE 6.8.1M Electrically Operated Variable Refrigerant Flow Air-to-Air and Applied Heat Pumps — Minimum
Efficiency Requirements

VRF Multi-split
<40 kW All System 3.93 COPC
25ºC entering water
VRF Multi-split Sys-
tem with Heat
<40 kW All 3.87 COPC
Recovery
VRF Ground source 25ºC entering water
AHRI 1230
(cooling mode) VRF Multi-split
≥40 kW All System 3.22 COPC
25ºC entering water
VRF Multi-split Sys-
tem with Heat
≥40 kW All 3.16 COPC
Recovery
25ºC entering water
<19 kW VRF Multi-split
--- 2.25 SCOPH
(cooling capacity) System
VRF Multi-split
system
8.3ºC db/6.1ºC 3.3 COPH
≥19 kW and
wb outdoor air
<40 kW ---
(cooling capacity)
2.25 COPH
VRF Air Cooled -8.3ºC db/
AHRI 1230
(heating mode) -9.4ºC wb outdoor air
VRF Multi-split
System
8.3ºC db/6.1ºC 3.2 COPH
≥40 kW wb outdoor air
---
(cooling capacity)
2.05 COPH
-8.3ºC db/
-9.4ºC wb outdoor air
VRF Multi-split
<40 kW (cooling
--- System 4.2 COPH
capacity)
VRF Water source 20ºC entering water
AHRI 1230
(heating mode) VRF Multi-split
≥40 kW (cooling
--- System 3.9 COPH
capacity)
20ºC entering water
VRF Multi-split Sys-
<40 kW (cooling
--- tem 3.6 COPH
VRF Groundwater capacity)
10ºC entering water
source AHRI 1230
VRF Multi-split Sys-
(heating mode) ≥40 kW (cooling
--- tem 3.3 COPH
capacity)
10ºC entering water
VRF Multi-split Sys-
<40 kW (cooling
--- tem 3.1 COPH
capacity)
VRF Ground source 0ºC entering water
AHRI 1230
(heating mode) VRF Multi-split Sys-
≥40 kW (cooling
--- tem 2.8 COPH
capacity)
0ºC entering water

Add the following reference to Section 12 (under Air-

Conditioning, Heating, and Refrigeration Institute)

ANSI/ASHRAE/IESNA Addenda ce and cp to ANSI/ASHRAE/IESNA Standard 90.1-2007 11

 © American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (www.ashrae.org).
For personal use only. Additional reproduction, distribution, or transmission in either print or
digital form is not permitted without ASHRAE's prior written permission.

Performance Rating of Variable Refrigerant Flow (VRF) Multi-split Air-Condition-

AHRI 1230-2010
ing and Heat Pump Equipment

12 ANSI/ASHRAE/IESNA Addenda ce and cp to ANSI/ASHRAE/IESNA Standard 90.1-2007

 POLICY STATEMENT DEFINING ASHRAE’S CONCERN
FOR THE ENVIRONMENTAL IMPACT OF ITS ACTIVITIES
ASHRAE is concerned with the impact of its members’ activities on both the indoor and outdoor environment. ASHRAE’s
members will strive to minimize any possible deleterious effect on the indoor and outdoor environment of the systems and
components in their responsibility while maximizing the beneficial effects these systems provide, consistent with accepted
standards and the practical state of the art.
ASHRAE’s short-range goal is to ensure that the systems and components within its scope do not impact the indoor and
outdoor environment to a greater extent than specified by the standards and guidelines as established by itself and other
responsible bodies.
As an ongoing goal, ASHRAE will, through its Standards Committee and extensive technical committee structure,
continue to generate up-to-date standards and guidelines where appropriate and adopt, recommend, and promote those new
and revised standards developed by other responsible organizations.
Through its Handbook, appropriate chapters will contain up-to-date standards and design considerations as the material is
systematically revised.
ASHRAE will take the lead with respect to dissemination of environmental information of its primary interest and will seek
out and disseminate information from other responsible organizations that is pertinent, as guides to updating standards and
guidelines.
The effects of the design and selection of equipment and systems will be considered within the scope of the system’s
intended use and expected misuse. The disposal of hazardous materials, if any, will also be considered.
ASHRAE’s primary concern for environmental impact will be at the site where equipment within ASHRAE’s scope
operates. However, energy source selection and the possible environmental impact due to the energy source and energy
transportation will be considered where possible. Recommendations concerning energy source selection should be made by
its members.
8/2010