TRACER CH532

Chiller controller
User guide

CG-SVU01B-E4

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 General information

Foreword Reception
These Installation Operation and When the unit arrives on site, check
Maintenance instructions are given it has not been damaged in any way
as a guide to good practice in the during transport. If damage is
installation, start-up, operation and observed, or even merely suspected,
periodic maintenance by the user of notify the carrier within 24 hours by
TRACER CH532 chiller controller. registered letter. Notify the local
They do not contain the full service Trane Sales office at the same time.
procedures necessary for the The unit should be totally inspected
continued successful operation of within 3 days of delivery. If damage
this equipment. The services of a is observed, notify the last carrier by
qualified service technician should registered letter and notify the local
be employed, through the medium sales office.
of a maintenance contract with a
reputable service company.
General information
About this manual
Warranty Cautions appear at appropriate
Warranty is based on the general places in this instruction manual.
terms and conditions of the Your personal safety and the proper
constructor. The warranty is void if operation of this machine require
the equipment is modified or that you follow them carefully. The
repaired without the written constructor assumes no liability for
approval of the constructor, if the installations or servicing performed
operating limits are exceeded, or if by unqualified personnel.
the control system or the electrical
wiring is modified.
Damage due to misuse, lack of
maintenance, or failure to comply
with the manufacturer’s instructions,
is not covered by the warranty
obligation.
If the user does not conform to the
rules of “Maintenance”, it may entail
cancellation of warranty and
liabilities by the constructor.

©American Standard Inc. 2004 CG-SVU01B-E4

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 Contents

Foreword 2
Warranty 2
Reception 2
General information 2
TRACER CH532 Presentation 4
Hardware architecture 5
Starting/stopping the unit 9
Menus 10
Display menu: “Data display” 11
Customer settings menu: “Settings” 12
Clock Setting menu: “Clock” 15
Unit configuration menu: “Configuration” 17
Alarms 22
Lon Talk option
®
25
Safety recommendations 32
Maintenance contract 32
Training 32

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 TRACER CH532 Presentation

Important note: This document

describes all the functions available
on TRACER CH532 with software
version 2.0 and explains how to
program it.
Certain parameters must only be
modified by qualified personnel.
Before changing any parameter,
always check that the change does
not affect the good and safe
operation of the equipment.
Operation must always stay in the
catalogued limits.

Built-in control terminal features:

An LCD display (1), 4 lines x 20
characters with back lighting
6 buttons (2) to (7)

Figure 1 - TRACER CH532 user interface

1 2 3 4

Prg Esc

5 6 7

2. Alarm button: 7 Validation button

Used for displaying or manually Allows to move from line to line in
resetting the alarms. The red LED the currently displayed screen and to
lights up , when at least one alarm confirm the set data.
has been detected.

3. Prg Program button:

Allows the various operating
parameters to be set (safety
parameters, thresholds).

4. Esc Escape button:

Allows the return to default display

5. 6. Downward and Upward

arrows
Allows management of currently
displayed screen and setting of
values of control parameters

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 Hardware architecture

Figure 2 - TRACER CH532 inputs and

outputs

9
9

Esc
Prg

11
10

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 Hardware architecture

Table 1 - TRACER CH532 General description

Item Description
1 24 V Power supply (G+,GO-)
2 Yellow LED (Power on)
Red LED (Alarm)
3 Fuse (2A , 5x20)
4 Universal Analog inputs: NTC,0/1V,0/10V,0/20mA, 4/20mA)
5 Passive Analog Inputs (NTC,PT1000 , ON/OFF)
6 Analog Outputs (0/10V)
7 Digital Inputs (24Vac / Vdc)
8 Digital Inputs (230Vac or 24Vac / Vdc)
9 Relays digital output
10 User interface
11 Communication interface

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 Hardware architecture

Table 2 - Inputs and output summary list

TRACER CH532 Medium TRACER CH532 Large
Single circuit units Dual circuit units
AI: Leaving water temperature sensor B3: NTC B3: NTC
AI: Entering water temperature sensor B4: NTC B4: NTC
AI: Ambient temperature sensor B5: NTC B5: NTC l
AI: Suction pressure circuit 1 - LP1 transducer B1: 4..20mA B1: 4..20mA
AI: Suction pressure circuit 2 - LP2 transducer B6: 4..20mA
AI: Discharge pressure circuit 1 - HP1 transducer B2: 4..20mA B2: 4..20mA
AI: Discharge pressure circuit 2 - HP2 transducer B7: 4..20mA
AI: External water setpoint reset (option) B8: 0..10V-0..20mA B8: 0..10V-0..20mA
AI: Unused B6, B7 B9, B10
DI: Compressor C circuit 1 fault ID1: 24Vac ID1: 24Vac
DI: Compressor C circuit 2 fault ID17: 24Vac
DI: Compressor A circuit 1 fault ID3: 24Vac ID3: 24Vac
DI: Compressor B circuit 1 fault ID4: 24Vac ID4: 24Vac
DI: Compressor A circuit 2 fault ID11: 24Vac
DI: Compressor B circuit 2 fault ID12: 24Vac
DI: High pressure Cut-out circuit 1 - HP1 switch ID14H: 230Vac ID14H: 230Vac
DI: High pressure Cut-out circuit 2 - HP2 switch ID15H: 230Vac
DI: Auxiliary set point On/Off ID8: 24Vac ID8: 24Vac
DI: Fans circuit 1 fault ID5: 24Vac ID5: 24Vac
DI: Fans circuit 2 fault ID18: 24Vac
DI: Circuit 1 On/Off (or Unit On/Off CH 532 medium) ID13H: 230Vac ID13H: 230Vac
DI: Circuit 2 On/Off ID16H: 230Vac
DI: Water flow control input ID2: 24Vac ID2: 24Vac
DI: Water pump 1 fault ID9: 24Vac ID9: 24Vac
DI: Water pump 2 fault ID10: 24Vac ID10: 24Vac
DI: Faults external reset ID6: 24Vac ID6: 24Vac
DI: Cooling/Heating mode switch ID7: 24Vac ID7: 24Vac
DI: Unused ID11, ID12 -
DO: Compressor A circuit 1 output NO7: NO-230Vac NO7: NO-230Vac
DO: Compressors B and C circuit 1 output NO8: NO-230Vac NO8: NO-230Vac
DO: Compressor A circuit 2 output NO13: NO-230Vac
DO: Compressors B and C circuit 2 output NO14: NO-230Vac
DO: Fan 1 output Wye (Y) contactor - circuit 1 NO3: NO-230Vac NO3: NO-230Vac
DO: Fan 1 output Delta (D) contactor - circuit 1 NO4: NO-230Vac NO4: NO-230Vac
DO: Fan 2 output circuit 1 NO5: NO-230Vac NO5: NO-230Vac
DO: Fan 3 output circuit 1 NO6: NO-230Vac NO6: NO-230Vac
DO: Fan 1 output Wye (Y) contactor - circuit 2 NO15: NO-230Vac
DO: Fan 1 output Delta (D) contactor - circuit 2 NO16: NO-230Vac
DO: Fan 2 output circuit 2 NO17: NO-230Vac
DO: Fan 3 output circuit 2 NO18: NO-230Vac
DO: Water pump 1 NO1: NO-230Vac NO1: NO-230Vac
DO: Water pump 2 NO2: NO-230Vac NO2: NO-230Vac
DO: Antifreeze heater NC12: NO-230Vac NC12: NO-230Vac
DO: Circuit 1 fault NO9: NO-230Vac NO9: NO-230Vac
DO: Circuit 2 fault NO11: NO-230Vac
DO: Unit status or additional heating demand NO10: NO-230Vac NO10: NO-230Vac
DO: Unused NO11, NO13 -
AO: Speed inverter - fan circuit 1 - HP1 output Y1: 0..10V Y1: 0..10V
AO: Speed inverter - fan circuit 2 - HP2 output Y2: 0..10V
AO: 4-way valve circuit 1 Y3: 0..10V + CONVONOFF Y3: 0..10V + CONVONOFF
AO: Unused Y4 Y4
AO: 4-way valve circuit 2 Y5: 0..10V + CONVONOFF
AO: Unused Y6
AO: Unused Y2 Y2

Legend:
AI: Analog Input
DI: Digital Input
AO: Analog Output
DO: Digital Output
CONVONOFF: ON/OFF converter

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 Hardware architecture

TRACER CH532 offers customer the

possibility to use inputs or outputs
in order to:
- use an external water setpoint
reset using an analog input
(refer to figure 3)
- use an auxiliary setpoint
- connect a remote on/off of the unit
or a circuit
- reset faults
- connect a remote Cooling/Heating
switch
- return a circuit fault

Note: External water setpoint

Based on a external signal input, it
will be possible to offset the active
setpoint from 0°C to 20°C. This
function can be used in conjunction
with the automatic setpoint reset
function.

Figure 3
Water setpoint

5
4
1

Ambient
2 temperature 3

1. Leaving water temperature setpoint

2. Minimum value
3. Maximum value
4. Reset = 20°C
5. Active setpoint

Table 3: Customer Inputs and output summary list

TRACER CH532 Medium TRACER CH532 Large
Single circuit units Dual circuit units
AI External water setpoint reset (option) B8: 0..10V-0..20mA
DI Auxiliary setpoint On/Off ID8: 24Vac
DI Circuit 1 On/Off (or Unit On/Off
for single circuit units) ID13H: 230Vac
DI Circuit 2 On/Off - ID16H: 230Vac
DI Faults external reset ID6: 24Vac
DI Cooling/Heating mode switch ID7: 24Vac
DO Circuit 1 fault NO9: NO-230Vac
DO Circuit 2 fault - NO11: NO-230Vac
DO Unit status or additional
heating demand NO10: NO-230Vac

Legend:
AI: Analog Input
DI: Digital Input
DO: Digital Output

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 Starting/stopping the unit

Once the unit is powered on (main Note: In case of power failure unit
disconnect switch closed) TRACER will restart in the state (operating
CH532 returns to the following mode, setpoints…) it was in before
display: the power failure and default screen
will be displayed.
TRACER CH532 V2.0
01/05/04 00:00
Water Temp 20.0°C
OFF BY KEYB.

Line 2 gives current date and time

Line 3 gives current leaving water
temperature
Line 4 gives the unit status:
OFF BY KEYB = Local stop
UNIT ON = Unit running

Esc
Pressing from any screen will
return to this screen.

1. Starting the unit:

1. Press
2. Following screen will be displayed:
Status Unit
OFF BY KEYB.

Switch on unit ? N

3. Press

4. Press or to change from

“N” to “Y”

5. Press . Following screen will

be displayed:

TRACER CH532 V2.0

01/05/04 00:00
Water Temp 20.0°C
UNIT ON

2. Stopping the unit

Esc
1. Press to exit from any menu
and return to default display.

2. Press for 3 seconds unit will

stop, and following screen will be
displayed:

Unit Switched Off

Esc
3. Press to return to default
display

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 Menus

TRACER CH532 allows the user to Accessing the menus

access 4 menus to display or adjust From any screen displayed, press
operation parameters: Esc
, TRACER CH532 will then
• “Data display” menu - This menu display the following screen:
allows the user to visualize all
Data Display
operation parameters:
Settings
- Water and air temperatures
Clock
- Refrigerant pressures
Configuration
- Saturated refrigerant
temperatures
- Compressors status
- Compressor running hours 1. or allow the cursor to
- Number of compressors starts move from line to line thus
- Unit operating mode selecting one of the 4 menus.
- Compressors failures counters
Note: The selection is displayed in
• “Settings” menu - This menu is capital characters
password protected. It allows 2. Once one line is selected,
access to the settings of:
- Setpoints press to validate the choice.
- Offset of cooling and heating Esc
3. Pressing will exit the menu
setpoints
selection mode and return to
- Unit operation validation
default display.
- Customer inputs and outputs

• “Clock” menu - This menu is

password protected. It allows
access to the settings of:
- Day of the week, hour, date
- Daily or weekly program
- Hourly zone program

• “Configuration” menu - This menu

is password protected. It allows to
adjust or change:
- Unit definition
- Compressors timers
- High pressure control
- Dead band, antifreeze and heater
setpoints
- Type of sensors and transducers
- Operation protections
- Cooling mode limitations
- Defrost parameters
- Compressor alarms

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 Display menu: “Data display”

From the menu screen, select “Data 3. Refrigerant saturated temperatures 6. Number of compressors starts

Display” then press Sat Temp CDS1 00.0°C

Cmp A1 000000 Starts
Sat Temp CDS2 00.0°C
Pressing or will allow Cmp B1 C1 000000 Starts
Sat Temp EVP1 00.0°C
navigation from screen 1 to 8 as Cmp A2 000000 Starts
Sat Temp EVP2 00.0°C
shown hereafter: Cmp B2 C2 000000 Starts

The menu is looped making it Sat Temp CDS1 = Condensing Starts indicates the number of
possible to scroll from the first item temperature circuit 1 compressor starts since first start-up.
in the menu to the last item. Sat Temp CDS2 = Condensing
temperature circuit 2 (dual circuit 7. Operating mode
units only)
Lvg Wat Temp 08.0°C Sat Temp EVP1 = Evaporating
Mode Cooling
Ret Wat Temp 12.0°C temperature circuit 1
Stp Local 07.0°C
Amb Temp 28.0°C Sat Temp EVP2 = Evaporating
Ckt1 Enable
Active StP 07.0°C temperature circuit 2 (dual circuit
Ckt2 Enable
units only)
1. Water and air temperatures Legend for screens 4,5 and 6: Mode = Running mode
Lvg Wat Temp = Leaving water Cmp A1 = Compressor A/circuit 1 - Cooling = Cold water production
temperature Cmp B1/C1 = Compressor B and - Heating = Hot water production
Ret Wat Temp = Entering water C/circuit 1 (Reversible chillers only)
temperature Cmp A2 = Compressor A/circuit 2 Stp Local 07.0°C
Amb Temp = Ambient air (dual circuit units only) - Stp = Current setpoint
temperature Cmp B2/C2 = Compressor B and - Local = Source of Setpoint
Active StP = Active water setpoint C/circuit 2 (dual circuit units only) Local = Cooling or heating
setpoint defined locally
Extern = Auxiliary setpoint
HP ckt1 00.0 bar Cmp A1 Off or operating mode by
HP ckt2 00.0 bar Cmp B1 C1 Off external contact
LP ckt1 00.0 bar Cmp A2 Off Auto = setpoint by the
LP ckt2 00.0 bar Cmp B2 C2 Off automatic reset or the
daily/weekly program
4. Compressors status Remote = Setpoint by
2. Refrigerant pressures Possible Status: supervisor
HP ckt1 = Condensing Pressure Off = Compressor stopped
circuit 1 On = Compressor running Ckt1/Ckt 2 = Operational circuits
HP ckt2 = Condensing Pressure Rec.On = Compressor will start after - Enable = Circuit is operational
circuit 2 (dual circuit units only) anti-short cycle - Disable = Circuit is not
LP ckt1 = Evaporating Pressure Rec.Off = Compressor will stop after operational
circuit 1 anti-short cycle
LP ckt2 = Evaporating Pressure
8. Compressors failures counters
circuit 2 (dual circuit units only)
Cmp A1 000000 Hrs Nb of CMP faults
Cmp B1 C1 000000 Hrs Cpt A1:0 Cpt A 2:0
Cmp A2 000000 Hrs Cpt B1:0 Cpt B 2:0
Cmp B2 C2 000000 Hrs Cpt C1:0 Cpt C 2:0

5. Compressors running time This menu indicates the number of

Hrs indicates the number of full compressors failure regardless of
hours compressor has been working the history.
since its first start.

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 Customer settings menu:
“Settings”

From the menu screen, select Cooling Stp = Cold water setpoint 2.1 Cooling mode setpoint reset
(-12 to 20°C - factory setting: 7°C) To access one of the parameters
“Settings” then press . Heating Stp = Hot water setpoint
Following screen will appear: (20 to 60°C - factory setting: 45°C) displayed, press and change
Aux Wat Stp = Auxiliary setpoint
value using or . Confirm the
(-12 to 60°C - factory setting: 10°C)
User password
Aux Wat = Auxiliary setpoint from value by pressing
external source:
0000
Enable = Auxiliary setpoint validated
Disable = Auxiliary setpoint non- Cold water reset N
validated Start Point 20.0°C
Enter password:”0000” (factory-set) End Point 30.0°C
. Automatic cooling and heating Reset Delta 10.0°C
Press and cursor will move to
mode setpoints reset
first field of password. Pressing Cold Water Reset: Ambient
TRACER CH532 offers the possibility temperature based cold water
or will change the value from 0 to offset cold and/or hot water setpoint offset
setpoints according to ambient air Y = Enabled
to 9999. Keeping pressure on or temperature. N = Disabled (factory setting)
The automatic setpoint reset Start Point: Starting point (-15 to 50°C
will move the numbers fast. program will allow you to change - factory setting: 20°C)
the water temperature setpoint End Point: Ending point (-15 to 60°C
(cooling and heating mode) with the - factory setting: 30°C)
Press to confirm password.
ambient temperature. This function Reset Delta: Reset amplitude (-15 to
can be used in conjunction with the 15°C - factory setting: 10°C)
Pressing will allow external setpoint reset function.
navigation from screen 1 to 5 as Figure 4 3. Heating mode setpoint reset
shown hereafter: (Reversible chillers only)
To access one of the parameters
1. Setpoints
displayed, press and change
5
4
Cooling Stp 07.0°C 1 value using or . Confirm the
Heating Stp 45.0°C
Aux Wat Stp 10.0°C value by pressing
Aux Wat Disable
Ambient
2 temperature 3 Hot water reset N
To access one of the parameters Start Point 20.0°C
End Point 30.0°C
displayed, press and change 1. Leaving water temperature setpoint Reset Delta 10.0°C
2. Starting point
value using or . Confirm the 3. Ending point
4. Reset delta Hot Water Reset: Ambient
value by pressing 5. Active set point temperature based hot water
setpoint offset
Below the reset starting point, the
Y = Enabled
Cooling StP 07.0°C water temperature setpoint will be
N = Disabled (Factory setting)
Heating StP 45.0°C the normal setting. Between the
Start Point: Starting point
Aux Wat StP 10.0°C starting and ending point the
(-15 to 50°C - factory setting: 20°C)
Aux Wat Disable setpoint will vary proportionally with
End Point: Ending point
the ambient temperature. After the
(-15 to 60°C - factory setting: 30°C)
ending point, the setpoint will stay
Reset Delta: Reset amplitude
at its maximum or minimum value.
(-15 to 15°C - factory setting: 10°C)

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 Customer settings menu:
“Settings”

4. Operating mode Comp seq: Compressor sequencing

1-2: fix order
To access one of the parameters Single circuit Dual circuit
Start order A1,B1 A1, A2, B1, B2
displayed, press and change Stop order B1, A1 B2, B1, A2, A1
2-1: fix order
value using or . Confirm the Single circuit Dual circuit
Start order B1,A1 A2, A1, B2, B1
value by pressing Stop order A1, B1 B1, B2, A1, A2
Rotation
Single circuit Dual circuit
Start order A1,B1 A1, A2, B1, B2
Mode Cooling Stop order A1,B1 A1, A2, B1, B2
Comp seq Auto Auto (default factory setting)
Ckt1 Enable
Ckt2 Enable The Auto sequence intend to have Ana. Input External setpoint reset
equivalent numbers of starts and Y = Enabled
stops and an equivalent number of N = Disabled
compressor working hours. The Pump Timer: Time between unit stop
Mode: Operating mode
compressor start order will prioritize (by keyboard or external contact)
Cooling: Cold water
the compressors which have the and stop of the pump
production (default factory
least number of working hours. (1 to 10 min - factory setting = 1 min)
setting)
Heating: Hot water Ckt1/2: Circuit 1/2 operation
production (Reversible Enable: circuit operational 6. Customer outputs configuration
chillers only) Disable: circuit non-
Extern: (external control) operational
Note: When switching from cooling Note: It is possible to disable both
Alarm Out: MR only
to heating mode or from heating to circuit 1 and 2. Water pump will be
State Out: Unit state
cooling mode, unit will stop for 15 s kept in operation
Pump Timer: 01 min
before restarting.
To allow chiller waterflow rate 5. Customer Inputs and Outputs
adjustment disable circuit 1 and 2,
then start the unit. To access one of the parameters Default I/O: (NO9 / NO11)
This output will be used to give an
displayed, press and change information about the circuit status:
A configuration parameter will allow
value using or . Confirm the to choose between the following
three indications concerning this
value by pressing
circuit:
ALL: All alarms (manual and
automatic reset)
Analog Input 0..10V ALL But LA: All alarms but
Ana. Input Disable without Low Ambient alarm
MR only: Manual reset
alarms only (factory setting)
Status output: (NO10)
Analog Input: Signal type
Add Heat: indicate an
0..10V (factory setting)
additionnal heat demand
0..1V
Unit State Send data telling
0..20mA
that at least one
4..20mA
compressor is ON
Note: the total amplitude
(factory setting)
corresponds to reset delta of +20°C
between 0%(0V,OA or 4 mA) and
100% (10V,1V, or 20 mA)

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 Customer settings menu:
“Settings”

7. Remote Mode

To access one of the parameters

displayed, press and change

value using or . Confirm the

value by pressing

Chiller control Mode:

Local
Remote

Local: Setpoints are entered on the

module. Orders sent from the BMS
are not taken into account.

Remote: Orders sent from the BMS

are taken into account.

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 Clock Setting menu: “Clock”

From the menu screen, select 2. ON/OFF program type

When enabled, this program will
“Clock” then press . control the unit operation (On/Off).
Following screen will appear: This program will allow the user to:
- Make a choice between the daily
and/or the weekly operation
User password - Define the operational days and
hours
0000 - Define the operating setpoints for
each mode (cooling and heating)
The operating mode selected by the
Enter default password:”0000” operator or by the external control
(factory set) will be taken into account.
Example:
Press and cursor will move to
Time Monday Tuesday Wednesday Thursday Friday Saturday
00:00
first field of password. Pressing 02:00
04:00
or will increment the value from 06:00
08:00 Example
10:00 Operation enable
0 to 9999. Keeping pressure on 12:00 ƒ from Monday to Friday
14:00 ƒ from 8:00 to 18:00
16:00
or will move the numbers fast. 18:00
20:00
Press to confirm password. 22:00

To access one of the parameters

Pressing or will allow displayed, press and change
navigation from screen 1 to 3 as
shown hereafter: value using or . Confirm the

1. Clock setting value by pressing

To access one of the 4 parameters
displayed, press and change value Program
On/Off Unit
using or . Confirm the value Weekly N
Daily N
by pressing
Mon: Weekday
Weekly: Weekly program
Clock Y: Enabled
Mon N: Disabled (factory setting)
Hour 00:00 Daily: Daily program
Date 00/00/00 Y: Enabled
N: Disabled (factory setting)

Mon: Monday (factory setting)

Tue: Tuesday
Wed: Wednesday
Thu: Thursday
Fri: Friday
Sat: Saturday
Sun: Sunday
Hour: Time (hours/minutes)
Date: Date setting (day/month/year)

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 Clock Setting menu: “Clock”

2.1 Weekly program To validate hourly zone program,

To access one of the parameters
press and change value using
displayed, press and change
or . Confirm the value by
value using or . Confirm the
pressing
value pressing
Program
Program Hourly zone
Weekly
Start Mon Disable
Stop Fri

Start: Starting day Disable: No program

Stop: Ending day Enable: Program used

2.2 Daily program 3.1 Defining Zones

To access one of the parameters To access one of the parameters

displayed, press and change displayed, press and change

value using or . Confirm the value using or . Confirm the

value by pressing value by pressing

Program
Zone #1
Daily
Start 00:00
Start 00:00
Cooling Stp 07.0°C
Stop 00:00
Heating Stp 45.0°C

Start: Start time

Stop: Stop time Start: Beginning Time
Cooling StP: Cooling mode setpoint
3. Hourly Zone (-20 to 20°C - factory setting: 7°C)
The Daily/weekly program will allow Heating StP: Heating mode setpoint
you to define the cooling mode and - Reversible chillers only (20 to 60°C
heating mode setpoints. It will be factory setting: 45°C)
possible to define within a day, four
operating zones with different Press or to reach zones 2,3
setpoint as follows: and 4. Proceed the same way as
Example: above for programming parameters.
Time Std setpoint Zone 1 Zone 2 Zone 3 Zone 4 Setpoint
07:00
08:00
Std Stp
09:00
10:00 Stp 1
11:00
Operating Stp 2
12:00
hours
13:00 Starting at
8:00-18:00 Starting at
14:00 10:00 Stp 3
11:00 Starting at
15:00
13:00
16:00 Starting at
Stp 4
17:00 16:00
18:00

Note: The automatic or external

setpoint compensation or the
external setpoint will change the
standard setpoint only but will not
affect the setpoints defined for the
hourly zones 1, 2, 3 or 4.

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 Unit configuration menu:
“Configuration”

From the menu screen, select

“Configuration” then press .
Following screen will appear: Figure 5 - Single pump operation

User password Note: figures 5 to 8, Unit Off means

that the unit is stopped by keyboard
0000 or by an external contact

Enter default password:”0000” On

(factory-set)

Press and cursor will move to

On
first field of password. Pressing
Pump
Off
or will increment the value from
t
0 to 9999. Keeping pressure on

or will move the numbers fast.

Figure 6 - Dual pump operation
Press to confirm password.
On
Pressing or will allow
Unit
navigation from screen 1 to 11 as Off
shown hereafter:

1. Unit definition On
To access one of the 4 parameters Pump 1
Off
displayed, press and change
On
value using or . Confirm the Pump 2
Off
value by pressing
t
Unit type: Chiller
Refrg R407C
When twin pumps are used, a pump
Fans/ckt 3
switch will occur at each start and
Water pump Single
also in case of fault on the pump in
operation.
Unit Type: Unit type
Chiller: Cooling only Figure 7 - Single pump protection
Heat pump: Reversible chiller
Refrg: Refrigerant R407C, R134a, Pump
R410A or R22 protection-
Fans/ckt: Number of fans per circuit: input
1, 2, or 3 Unit stopped
Note: Setting number of fans at 0, (manual reset)
Pump
will stop all the fans, but will allow protection-
the compressors to run before being output
stopped by HP switch.
Water Pump: Water pump type
Single: Single pump control
Dual: Dual pump control
Note: Pump operation
The water pumps can be single or
dual. A timer is used to delay the
pump shut down in normal
operating conditions. The timer is
reset at each unit start.
CG-SV01B-E4 17

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 Unit configuration menu:
“Configuration”

Figure 8 - Dual pump protection

Pump 1

Pump protection input

Pump 2

Fault reset

Pump 1
Message 46* Message 46*
Operation Enable/Disable
Message 47*
Pump 2

Pump 1
Unit stopped
(manual reset)
Pump control outputs

Pump 2

* refer to “alarms” section for

meaning of message

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 Unit configuration menu:
“Configuration”

2. Compressors timers 4. Control dead bands

To access one of the parameters To access one of the parameters

displayed, press and change displayed, press and change

value using or . Confirm the value using or . Confirm the

value by pressing value by pressing

ACC 1st Start 2 min Dead band Cmp 03.0°C

ACC On-On 5 min
Min On-On 060 s Antifreeze 02.0°C
Min Off-Off 015 s Heater 03.0°C

ACC 1st Start: Short cycle Dead band Cmp: Compressors

compressor at first start (0 to 60 min regulation dead band around water
- factory setting: 2min) temperature (0.4 to 8.0°C - factory
ACC On-On: Short cycle between 2 setting: 3.0°C)
starts of the same compressor (2 to AntiFreeze: Cold water temperature
10 min - factory: 5 min) limit (-15 to 10°C - factory setting:
Min On-On: Minimum time to add 2°C)
compressor (5 to 240 s - factory Heater: Evaporator heater setpoint
setting: 60s) according to ambient air
Min Off-Off: Minimum time to temperature (0 to 10°C - factory
remove compressor (1 to 120 s setting: 3°C)
factory setting 15s)
5. Winter Freeze Protection
3. HP Control
To access one of the parameters
CW High Limit 15°C
displayed, press and change Pmp Cycle OFF 10 min
WinFreezeProtPmp Yes
value using or . Confirm the Ctrl Pump Required
value pressing
Chilled water high limit: (15 to 25°C:
Fan control 1Speed factory setting 15°C)
Fan Ctrl Stp 15.0 b Water pump cycle OFF: (5 to 15 min:
Dead band Fan 06.0 b factory setting 10min)
Winter Freeeze protection with
pump:
Fan Control: Fan type: No ² Heater or Ethylene
1 speed: 1 Speed fan Glycol Required
2 speed: 2 Speed fan Yes ² Ctrl Pump Required
Invert: Inverter
Fan Ctrl StP: Fan control setpoint
(10 to 30 bar - factory setting: 15 bar)
Dead band Fan: Fans regulation
dead band (2 to 8 bar - factory
setting: 5 bar)

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 Unit configuration menu:
“Configuration”

6. Sensors and transducers 8. Analog Output (for speed inverter)

To access one of the parameters Note: This screen is displayed only if
“Invert” has been selected in the HP
displayed, press and change control menu (refer to §3)
To access one of the parameters
value using or . Confirm the
displayed, press and change
value by pressing
value using or . Confirm the
Temp probe NTC
Press probe 4..20mA value by pressing
Min Press 0.0bar
Max Press 30.0bar Analog output

Low OV 08.0 bar

Temp probe: Sensor type: High 10V 16.0 bar
NTC (factory setting)
PT100
Press probe: Pressure transducer: Low 0V: Minimum fan speed (0
0..10V to 10 bar - factory setting: 8 bar)
0..1V High 10V: Maximum fan speed
0..20mA (11 to 40 bar - factory setting: 16 bar)
4..20mA (factory setting)
Min Press: Pressure at 0V, 0mA or
4 mA (-1.0 to 0.0 bar - factory
setting: 0.0 bar)
Max Press: Pressure at 10V, 1V or
20 mA (16 to 50 bar - factory
setting: 30bar)

7. Operation limits
To access one of the parameters

displayed, press and change

value using or . Confirm the

value by pressing

LP (Sat Temp) -4°C

Timer LP 60 s
HP Cool Stp 28.0 bar
HP Heat Stp 28.0 bar

LP (Sat Temp): Low evaporating

pressure limit (-25 to 0°C - factory
setting: -4°C)
Timer LP: Low pressure fault timer
after compressor start (0 to 300 s -
factory setting: 60s)
HP Cool StP: High pressure limit in
cooling mode (15 to 40 bar - factory
setting: 28 bar)
HP Heat StP: High pressure limit in
heating mode (15 to 40 bar - factory
setting: 28 bar)

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 Unit configuration menu:
“Configuration”

9. Operating limits (cooling) 11. Defrost cycle termination 12. Compressor alarm
To access one of the parameters To access one of the parameters
Low Amb Cooling On
displayed, press and change displayed, press and change
Low Amb Limit -10.0°C
CW High Limit On value using or . Confirm the value using or . Confirm the
CW High Limit 15.0°C
value by pressing value by pressing

Low ambient temperature Term Stp 20.0 bar Compressor alarm

limitation: Drying time 12 s 00000 h
On: (factory setting) Low Max Defrost 7 min Default parameters?
ambiant limited Min cycle 25 min N
Off: Low ambient
temperature not limited Term StP: Defrost termination Compressor alarm: Operating hours
Low ambient limit: -20 to 20°C: setpoint (10 to 30bar - factory for a warning (0 to 999000 hours by
factory setting -10°C setting: 20 bar) 1000 hours)
Chilled water high limitation: Drying time: Drying time (5 to 30 Setting compressor alarm at
On: High water temperature seconds - factory setting: 12s) 000000 h will disable the
limited (factory setting) Max Defrost: Maximum defrost time function.
Off: High water temperature (5 to 30 minutes - factory setting: Note: Total operating hours =
not limited 7 min) compressor running hours + 3 x
Chilled water high limit: 10 to 20 °C: Min cycle: Minimum time between compressor starts
Factory setting 15°C defrost cycle (15 to 60min - factory Default parameters?: Set the default
setting: 25 min) parameters
10. Defrost demand setpoint Y: Reset all parameters
Note: Dual circuits have two N: Keep all parameters
Low Amb Heat -10.0°C independent refrigerant circuits.
StP Min Temp 10.0°C Defrost cycle will only occur on the Note: When resetting, all parameters
Defrost Max 12.0°C circuit that needs it. The other circuit programmed on site will be
StP Max Temp 22.0°C will continue its normal operation if definitively lost. Only factory default
required. set parameters will be kept. Full
configuration of the unit will have to
be checked.
Low ambient heating: -20 to 20°C,
factory setting -10°C
Setpoint at minimum ambient: 1 to
30°C, (factory setting 10°C)
Maximum ambient: -20 to 20°C:
(factory setting 12°C)
Setpoint at maximum ambient: 1 to
30°C, (factory setting 22°C)

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 Alarms

1. Alarms display and Resetting 2. Alarms history

200 events can be recorded by
A fault on a unit will be shown TRACER CH532. Each record will
through the user interface or give the fault description, the reset
through 2 digital outputs, one for type, the order and the day and time
each refrigerant circuit. of occurrence.

The alarms are divided into 3 Maintaining for 5 seconds give

categories: will access to the last event
- Warning. Shows that something is recorded.
wrong on the unit but unit can be
Then using allows the user
kept in operation. A message is
to view the complete history. (refer
displayed on the user interface
to table 5 for possible messages)
screen. These messages are not
recorded in the history list.
- Fault with automatic reset: when
the cause of the fault disappears,
the fault is cancelled and unit
operation will return to normal.
The messages displayed on the
user interface screen disappear
but are recorded in the history list
of faults. The fault is relayed
through the digital output if I/O
parameter is set to show a circuit
fault.
- Fault with manual reset: when the
cause of the fault disappears, a
manual reset is required to restart
the unit. The messages displayed
on the user interface screen
disappear and are recorded in the
history list of faults. The fault is
relayed through the digital output
if I/O parameter is set to show a
circuit fault.

Should an alarm occur, will be

lit in red.

Pressing once will display the

alarm message (refer to table 4 for
possible messages)
When alarm message is displayed

press to reset the default if

necessary.

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 Alarms

Table 4 - Status, warnings and alarm messages

No Message Reset Type Unit status Description
1 No Alarm - Unit On See unit status on Main display
2 Ext. Ckt1 Stop - Circuit 1 Off Circuit 1 Off by Digital Input (Dual circuit units)
3 Ext. Ckt2 Stop - Circuit 2 Off Circuit 2 Off by Digital Input (Dual circuit units)
4 User Ckt1 Stop - Circuit 1 Off Circuit 1 Disable by Settings (via keyboard)
5 User Ckt2 Stop - Circuit 2 Off Circuit 2 Disable by Settings (via keyboard)
6 Remote Ckt1 Stop - Circuit 1 Off Circuit 1 Disable by Supervision
7 Remote Ckt2 Stop - Circuit 2 Off Circuit 2 Disable by Supervision
8 Clock Unit Stop - Unit Off Unit Off by Program (Hourly, Weekly)
9 Operator Stop - Unit Off Unit Off by Operator (via keyboard)
10 Ckt1 Defrost - Unit On Circuit 1 under defrosting
11 Ckt2 Defrost - Unit On Circuit 2 under defrosting
12 Warning Comp.1 Maintenance Manual Unit On
13 Warning Comp.2 Maintenance Manual Unit On Compressor running hours above the threshold defined in unit
14 Warning Comp.3 Maintenance Manual Unit On configuration.Each compressor start is equal to 3 running hours.
15 Warning Comp.4 Maintenance Manual Unit On
16 Alarm Air Sensor Auto Unit Off Defective Air sensor -
17 Alarm Ckt 1 Fault Manual Circuit 1 Off Simultaneous manual reset faults CMP A1 and (B1 or C1)
18 Alarm Ckt 2 Fault Manual Circuit 2 Off Simultaneous manual reset faults CMP A2 and (B2 or C2)
19 Alarm Ckt1 HP Limit Auto Unit On Compressor B1C1 Off for high HP ckt1
20 Alarm Ckt1 Limiting Auto Unit On Compressor B1C1 Off for Hot water or low LP ckt1
21 Alarm Ckt2 HP Limit Auto Unit On Compressor B2C2 Off for high HP ckt2
22 Alarm Ckt2 Limiting Auto Unit On Compressor B2C2 Off for Hot water or low LP ckt2
23 Alarm Comp. A1 Fault Auto/Manual CMP A1 Off Manu if CMP A1 failure > 35 min or 6 failures within
3 hours 30 min
24 Alarm Comp. B1 Fault Auto/Manual CMP B1 Off Manu if CMP B1 failure > 35 min or 6 failures within
3 hours 30 min
25 Alarm Comp. C1 Fault Auto/Manual CMP C1 Off Manu if CMP C1 failure > 35 min or 6 failures within
3 hours 30 min
26 Alarm Comp. A2 Fault Auto/Manual CMP A2 Off Manu if CMP A2 failure > 35 min or 6 failures within
3 hours 30 min
27 Alarm Comp. B2 Fault Auto/Manual CMP B2 Off Manu if CMP B2 failure > 35 min or 6 failures within
3 hours 30 min
28 Alarm Comp. C2 Fault Auto/Manual CMP C2 Off Manu if CMP C2 failure > 35 min or 6 failures within
3 hours 30 min
29 Alarm Ext. Setpoint Signal Auto Unit Off Defective device or bad device configuration
30 Alarm Fan Protection 1 Auto Unit On Defective fan on the circuit 1
31 Alarm Fan Protection 2 Auto Unit On Defective fan on the circuit 2
32 Alarm HP Ckt1 Fault Manual Circuit 1 Off High Pressure Cut-Out circuit 1
33 Alarm HP Ckt2 Fault Manual Circuit 2 Off High Pressure Cut-Out circuit 2
34 Alarm HP Sensor Ckt1 Auto Circuit 1 Off Defective pressure sensor HP1
35 Alarm HP Sensor Ckt2 Auto Circuit 2 Off Defective pressure sensor HP2
36 Alarm Low Ambient Auto Unit Off Ambient temperature too low for unit operation
37 Alarm Low Water Temp Manual Unit Off LWT < antifreeze or INT (antifreeze-EWT)<=10°Cxsecond
38 Alarm LP Ckt1 Fault Auto/Manual Circuit 1 Off Suction pressure too low on circuit 1
39 Alarm LP Ckt2 Fault Auto/Manual Circuit 2 Off Suction pressure too low on circuit 2
40 Alarm LP Sensor Ckt1 Auto Circuit 1 Off Defective pressure sensor LP1
41 Alarm LP Sensor Ckt2 Auto Circuit 2 Off Defective pressure sensor LP2
42 Alarm Unit Fault Manual Unit Off All the compressors are defectives
43 Alarm Water Flow (**) Auto Unit Off No water flow. Reset by unit Off/On when pump Off
44 Alarm Water In Sensor Auto Unit On Defective Return water sensor
45 Alarm Water Out Sensor Auto Unit Off Defective Leaving water sensor
46 Alarm Water Pump1 Manual Unit On Defective water pump 1
47 Alarm Water Pump2 Manual Unit On Defective water pump 2

(**) When the unit is shut down after a waterflow alarm for more than 1 minute, it is necessary to switch the unit Off and On again to reset the fault. The
fault will automatically reset if the water pump is still running.

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 Alarms

Table 5 - History events record

No Message Reset Type Unit status Description
No History Auto Unit On No alarm was recorded
Air Sensor Auto Unit Off Faulty sensor, out of range -30..+80°C
(short circuit or open circuit)
Water In Sensor Auto Unit On Faulty sensor, out of range -30..+80°C
(short circuit or open circuit)
Water Out Sensor Auto Unit Off Faulty sensor, out of range -30..+80°C
(short circuit or open circuit)
Lp Sensor Ckt1 Auto Circuit 1 Off Faulty sensor, out of range 0..10V, 0..1V,0..20mA or 4..20mA
following configuration
Hp Sensor Ckt1 Auto Circuit 2 Off Faulty sensor, out of range 0..10V, 0..1V,0..20mA or 4..20mA
following configuration
Lp Sensor Ckt2 Auto Circuit 1 Off Faulty sensor, out of range 0..10V, 0..1V,0..20mA or 4..20mA
following configuration
Hp Sensor Ckt2 Auto Circuit 2 Off Faulty sensor, out of range 0..10V, 0..1V,0..20mA or 4..20mA
following configuration
Fan Protection 1 Auto Unit On A fan on the circuit 1 is faulty
Fan Protection 2 Auto Unit On A fan on the circuit 2 is faulty
Lp Ckt1 fault Auto or Manual Circuit 1 Off Lp circuit 2 is below the setpoint. Manual reset after 3 faults
within 1 hour
Lp Ckt2 fault Auto or Manual Circuit 2 Off Lp circuit 1 is below the setpoint. Manual reset after 3 faults
within 1 hour
Low Water Temp Manual Unit Off LWT < antifreeze or INT (antifreeze-EWT)<=10°Cxsecond
Comp. A1 Fault Auto or Manual CMP A1 Off Manual reset if CMP A1 failure > 35 min or 6 failures within
3 hours 30 min
Comp. B1 Fault Auto or Manual CMP B1 Off Manual reset if CMP B1 failure > 35 min or 6 failures within
3 hours 30 min
Comp. C1 Fault Auto or Manual CMP C1 Off Manual reset if CMP C1 failure > 35 min or 6 failures within
3 hours 30 min
Comp. A2 Fault Auto or Manual CMP A2 Off Manual reset if CMP A2 failure > 35 min or 6 failures within
3 hours 30 min
Comp. B2 Fault Auto or Manual CMP B2 Off Manual reset if CMP B2 failure > 35 min or 6 failures within
3 hours 30 min
Comp. C2 Fault Auto or Manual CMP C2 Off Manual reset if CMP C2 failure > 35 min or 6 failures within
3 hours 30 min
Hp Ckt1 Fault Manual Circuit 1 Off High pressure switch Cut-Out circuit 1
Hp Ckt2 Fault Manual Circuit 2 Off High pressure switch Cut-Out circuit 2
Ckt1 Fault Manual Circuit 1 Off Simultaneous faults compressor A1 and (B1 or C1)
Ckt2 Fault Manual Circuit 2 Off Simultaneous faults compressor A2 and (B2 or C2)
Unit Fault Manual Unit Off Simultaneous faults on all the compressors
Ext Setpoint Signal Auto Unit Off Faulty sensor, out of range 0..10V, 0..1V,0..20mA or 4..20mA
following configuration
Low Ambient Auto Unit Off Air temperature below the setpoint while unit On
Water Pump 1 Manual Unit On Fault on water pump #1
Water Pump 2 Manual Unit On Fault on water pump #2
Water Flow Auto Unit Off Loss of water flow for more than 4 sec when the system is On.
Pump restarts by a manual unit Off and On
Defrost Ckt1 Auto Unit On Defrost on circuit 1
Defrost Ckt2 Auto Unit On Defrost on circuit 2

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 LonTalk® option

Description
The Lon interface uses an Echelon
FTT-10 transceiver, which is
approved to be used on the TP/FT-10
channel.
This channel is characterized by the
following main features:
• It consists of up to 60 nodes on a
single network segment
• Data rate : 78 125 kbps
• Maximum distance : 1400 meters
• Recommended topology : daisy
chain with double end terminator
(105 ohms)
For futher details, refer to the official
documentation LonWorks® FTT-10A
free topology transeiver user’s guide
and to the official LonWorks®
guidelines LonMark® layer 1-6
interoperability guidelines version
3.0.
These documents and additional
information are available on the
internet site www.lonmark.org

Figure 9

GND A B
2

3
4
5

1. Connection to the Tracer CH532 To activate the service pin, simply

2. Terminal block to the LonWorks® short circuit the two pins for a
network (GND,A,B) moment using the tip of a
3. Service pin screwdriver or similar tool. The
4. Green status LED service pin is available only in the
5. Red service LED node installation phase. When the
pin is activated, the node sends a
broadcast message in the
LonWorks® containing the necessary
information in order to be
identified.

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 LonTalk® option

LED meaning and function

Green Status LED
LED status Meaning/Function
LED is OFF continuously. • Normal condition
• Broken hardware
• No power
LED is ON. • Broken hardware
· • During the activation of the service pin
• The node is Applicationless
LED blinks 1second then always OFF • When receiving a WINK command from the network (1)
LED blinks ½ second ON then always OFF • Normal operation (usually after a reset)
LED flashes once every second • The node card is not configured
• The node card is in continuous reset
(1) By sending a request, you can request the controller’s green status LED to blink (“wink”), a notification that the controller received the signal and is
communicating.

Red Service LED

LED status Meaning/Function
LED is ON for 20 seconds when power is applied to the controller • The controller is in a reset phase
LED is OFF continuously • The controller is operating normally
• Broken hardware
LED is ON during 2 seconds then always OFF • When power is applied to the controller
• After a reset
LED is ON continuously • The controller is not working properly
• Broken hardware
• Problems of connection with the CH532 module

Object details
Figure 10

Chiller Controller 8040

Mandatory network variables

nv1 nviChillerEnable nv3 nvoOnOff

snvt_switch snvt_switch

nviCoolSetpt nvoActiveSetpt
nv2 nv4
snvt_temp_p snvt_temp_p

Optional network variables

nviMode nvoLvgCHWTTemp
nv7 nv11
Snvt_hvac_mode snvt_temp_p

nv8 nviHeatSetpt nv12 nvoEntCHWTTemp

snvt_temp_p snvt_temp_p

nvoEntCndWTemp
nv13
snvt_temp_p

nvoAlarmDescr
nv15
snvt_str_asc

nvoChillerStat
nv16
snvt_chlr_status

Note: BAS intergrators requiring .xif file need to contact their local sales
representative.
Other optional network variables are not supported.

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 LonTalk® option

Nv1 0=off
1=on
nv2 range -12.2°C 48.8°C
nv3 0=chiller off
1=chiller on
nv4 range -40°C 93°C
nv7 1=heat mode
3=cooling mode
nv8 range 10°C 93°C
nv11 range -40°C 118°C
nv12 range -40°C 118°C
nv13 range -40°C 118°C
nv15 manual reset alarm
auto reset alarm
informational warning
circuit 1 fans fault
circuit 2 fans fault
compressor A1 fault
compressor B1 fault
compressor C1 fault
compressor A2 fault
compressor B2 fault
compressor C2 fault
pump 1 fault
pump 2 fault
nv16 chlr_off=0, chlr_run=2
HVAC_HEAT=1, HVAC_COOL=3
Chiller state 0=No alarm, 1=In alarm
Run _enable 0=Chiller not allowed to start, 1=Chiller can start
Local 0=Values can be changed remotely, 1=Values cannot be changed remotely
Limited (Not used)
CHW_flow 0=No water flow, 1=Water flow detected
CONDW_flow (Not used)
All other bits unused

Configuration properties
nc73 ChillerEnable (m)
nc52 inSendTime (m)
nc4 MaxSendTime (m)
nc7 CoolSetpt (m)
nc74 Mode (o)
nc78 HeatSetpt (o)
nc48 Heartbeat (o)

(m) = mandatory
(o) = optional

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 LonTalk® option

Cable characteristics
Level 4 cable may be used with TP/FT-10 channels. The level 4 cable specification used by Echelon and as originally
defined by the National Electrical Manufacturers Association (NEMA) differs from the Category 4 specification
proposed by the Electronic Industries Association / Telecommunication Industries Association (EIA / TIA).
The following specifications can be used by cable suppliers to identify a compliant Level 4 cable.
Specifications apply to shield or unshielded 22AWG (0.65mm2) cable
D-C resistance (ohms/1000 feet at 20°C) maximum for a
single copper conductor regardless of whether it is solid
or stranded and is or is not metal coated 18.0
D-C resistance unbalance (percent) maximum 5
Mutual capacitance of a pair (pF/foot) maximum 17
Pair to ground capacitance unbalance (pF/1000 feet) maximum 1000
Characteristic impedance (ohms)
772 kHz 102+/- 15%
1.0 MHz 100 +/- 15%
4.0 MHz 100 +/- 15%
8.0 MHz 100 +/- 15%
10.0 MHz 100 +/- 15%
16.0 MHz 100 +/- 15%
20.0 MHz 100 +/- 15%
Attenuation (dB/1000 feet at 20°C) maximum
772 kHz 4.5
1.0 MHz 5.5
4.0 MHz 11
8.0 MHz 15
10.0 MHz 17
16.0 MHz 22
20.0 MHz 24

Worst pair to pair near end crosstalk (dB) minimum. Values are shown for information only. The minimum NEXT
coupling loss for any pair combination at room temperature is to be greater than the value determined using the
formula NEXT (F MHz)>NEXT (0.772)-15log10(F MHz / 0.772) for all frequencies in the range of 0.772 MHz for a length
of 1000 feet.

772 kHz 58
1.0 MHz 56
4.0 MHz 47
8.0 MHz 42
10.0 MHz 41
16.0 MHz 38
20.0 MHz 36

For the TP/FT-10 channel operating in a bus topology , the maximum bus length of level 4 22AWG (0.65 mm2) cabling is
1400 meters with a maximum stub length of 3 meters.
It is recommended to use shielded cable if high amplitude modulation noise exist or transient protection is required.

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 Notes

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 Notes

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 Notes

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 Safety recommendations Maintenance contract Training
To avoid accidents and damage, the It is strongly recommended that you The equipment described in this
following recommendations should sign a maintenance contract with manual is the result of many years
be observed during maintenance your local Service Agency. This of research and continuous
and service visits: contract provides regular development. To assist you in
1. The maximum allowable maintenance of your installation by obtaining the best use of it and
pressures for system leak testing a specialist in our equipment. maintaining it in perfect operating
on low and high pressure side are Regular maintenance ensures that condition over a long period of time,
given in the chapter “Installation”. any malfunction is detected and the manufacturer has at your
Always provide a pressure corrected in good time and disposal a refrigeration and air
regulator. minimizes the possibility that conditioning service school. The
2. Disconnect the main supply serious damage will occur. Finally, principal aim of this is to give
before any servicing on the unit. regular maintenance ensures the operators and technicians a better
3. Service work on the refrigeration maximum operating life of your knowledge of the equipment they
system and the electrical system equipment. We would remind you are using, or that is under their
should be carried out only by that failure to respect these charge. Emphasis is particularly
qualified and experienced installation and maintenance given to the importance of periodic
personnel. instructions may result in immediate checks on the unit operating
cancellation of the warranty. parameters as well as on preventive
maintenance, which reduces the cost
of owning the unit by avoiding
serious and costly breakdown.

The manufacturer has a policy of continuous

product improvement, and reserves the right
to alter any details of the products at any time
without notice.

This publication is a general guide to install,

use and properly maintain our products. The
information given may be different from the
specification for a particular country or for a
specific order. In this event, please refer to
your nearest office.

For additional information, contact:

Distributor/Installer stamp

Literature Order Number CG-SVU01B-E4

Date 0304
Supersedes CG-SVU01A-E4-0902
Stocking Location Europe

Trane has a policy of continuous product and product data improvement and reserves the right to
change design and specifications without notice. Only qualified technicians should perform the
installation and servicing of equipment referred to in this publication.
www.trane.com
For more information contactyour local district American Standard Europe BVBA
office or e-mail us at comfort@trane.com Registered Office: 1789 Chaussée de Wavre, 1160 Brussels - Belgium

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