Foreword

These Installation Operation and Maintenance instructions are given as a guide to good practice in the installation, start-up, operation and periodic maintenance by the user of TRACER CH532 chiller controller. They do not contain the full service procedures necessary for the continued successful operation of this equipment. The services of a qualified service technician should be employed, through the medium of a maintenance contract with a reputable service company.

Warranty

Warranty is based on the general terms and conditions of the constructor. The warranty is void if the equipment is modified or repaired without the written approval of the constructor, if the operating limits are exceeded, or if 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.

Reception

When the unit arrives on site, check it has not been damaged in any way during transport. If damage is observed, or even merely suspected, notify the carrier within 24 hours by registered letter. Notify the local Trane Sales office at the same time. The unit should be totally inspected within 3 days of delivery. If damage is observed, notify the last carrier by registered letter and notify the local sales office.

General information

About this manual

Cautions appear at appropriate places in this instruction manual. Your personal safety and the proper operation of this machine require that you follow them carefully. The constructor assumes no liability for installations or servicing performed by unqualified personnel.

2. Alarm button:

Used for displaying or manually resetting the alarms. The red LED lights up , when at least one alarm 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

7 Validation button

Allows to move from line to line in the currently displayed screen and to confirm the set data.

outputs

9

9

Prg Esc

11

Once the unit is powered on (main disconnect switch closed) TRACER CH532 returns to the following display:

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

Pressing Esc 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.

3.Press

4.Press or to change from ???N??? to ???Y???

5.Press . Following screen will be displayed:

2.Stopping the unit

1.Press Esc 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

3. Press Esc to return to default display

Note: In case of power failure unit will restart in the state (operating mode, setpoints???) it was in before the power failure and default screen will be displayed.

TRACER CH532 allows the user to access 4 menus to display or adjust operation parameters:

??????Data display??? menu - This menu allows the user to visualize all operation parameters:

-Water and air temperatures

-Refrigerant pressures

-Saturated refrigerant temperatures

-Compressors status

-Compressor running hours

-Number of compressors starts

-Unit operating mode

-Compressors failures counters

??????Settings??? menu - This menu is password protected. It allows access to the settings of:

-Setpoints

-Offset of cooling and heating setpoints

-Unit operation validation

-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

Accessing the menus

From any screen displayed, press

Esc , TRACER CH532 will then display the following screen:

Data Display

Settings

Clock

Configuration

1. or allow the cursor to move from line to line thus selecting one of the 4 menus.

Note: The selection is displayed in capital characters

2.Once one line is selected, press to validate the choice.

3.Pressing Esc will exit the menu selection mode and return to default display.

From the menu screen, select ???Data Display??? then press

Pressing or will allow navigation from screen 1 to 8 as shown hereafter:

The menu is looped making it possible to scroll from the first item in the menu to the last item.

1. Water and air temperatures Lvg Wat Temp = Leaving water temperature

Ret Wat Temp = Entering water temperature

Amb Temp = Ambient air temperature

Active StP = Active water setpoint

2. Refrigerant pressures

HP ckt1 = Condensing Pressure circuit 1

HP ckt2 = Condensing Pressure circuit 2 (dual circuit units only) LP ckt1 = Evaporating Pressure circuit 1

LP ckt2 = Evaporating Pressure circuit 2 (dual circuit units only)

3. Refrigerant saturated temperatures

Sat Temp CDS1 = Condensing temperature circuit 1

Sat Temp CDS2 = Condensing temperature circuit 2 (dual circuit units only)

Sat Temp EVP1 = Evaporating temperature circuit 1

Sat Temp EVP2 = Evaporating temperature circuit 2 (dual circuit units only)

Legend for screens 4,5 and 6: Cmp A1 = Compressor A/circuit 1 Cmp B1/C1 = Compressor B and C/circuit 1

Cmp A2 = Compressor A/circuit 2 (dual circuit units only)

Cmp B2/C2 = Compressor B and C/circuit 2 (dual circuit units only)

4. Compressors status

Possible Status:

Off = Compressor stopped On = Compressor running

Rec.On = Compressor will start after anti-short cycle

Rec.Off = Compressor will stop after anti-short cycle

5. Compressors running time Hrs indicates the number of full

hours compressor has been working since its first start.

6. Number of compressors starts

Starts indicates the number of compressor starts since first start-up.

7. Operating mode

Mode = Running mode

-Cooling = Cold water production

-Heating = Hot water production

(Reversible chillers only)

Stp Local 07.0??C

-Stp = Current setpoint

-Local = Source of Setpoint Local = Cooling or heating setpoint defined locally Extern = Auxiliary setpoint or operating mode by external contact

Auto = setpoint by the automatic reset or the daily/weekly program Remote = Setpoint by supervisor

Ckt1/Ckt 2 = Operational circuits

-Enable = Circuit is operational

-Disable = Circuit is not operational

8.Compressors failures counters

This menu indicates the number of compressors failure regardless of the history.

From the menu screen, select

???Settings??? then press . Following screen will appear:

User password

0000

Enter password:???0000??? (factory-set) Press and cursor will move to first field of password. Pressing or will change the value from 0 to 9999. Keeping pressure on or

will move the numbers fast.

Press to confirm password.

Pressing will allow navigation from screen 1 to 5 as shown hereafter:

1. Setpoints

To access one of the parameters

Cooling Stp = Cold water setpoint (-12 to 20??C - factory setting: 7??C) Heating Stp = Hot water setpoint (20 to 60??C - factory setting: 45??C) Aux Wat Stp = Auxiliary setpoint (-12 to 60??C - factory setting: 10??C) Aux Wat = Auxiliary setpoint from external source:

Enable = Auxiliary setpoint validated Disable = Auxiliary setpoint non- validated

. Automatic cooling and heating mode setpoints reset

TRACER CH532 offers the possibility to offset cold and/or hot water setpoints according to ambient air temperature.

The automatic setpoint reset program will allow you to change the water temperature setpoint (cooling and heating mode) with the ambient temperature. This function can be used in conjunction with the external setpoint reset function.

Figure 4

Ambient

2 temperature 3

1.Leaving water temperature setpoint

2.Starting point

3.Ending point

4.Reset delta

5.Active set point

Below the reset starting point, the water temperature setpoint will be the normal setting. Between the starting and ending point the setpoint will vary proportionally with the ambient temperature. After the ending point, the setpoint will stay at its maximum or minimum value.

2.1 Cooling mode setpoint reset

To access one of the parameters

Cold Water Reset: Ambient temperature based cold water setpoint offset

Y = Enabled

N = Disabled (factory setting) Start Point: Starting point (-15 to 50??C - factory setting: 20??C)

End Point: Ending point (-15 to 60??C

- factory setting: 30??C)

Reset Delta: Reset amplitude (-15 to

15??C - factory setting: 10??C)

3. Heating mode setpoint reset (Reversible chillers only)

To access one of the parameters

Hot Water Reset: Ambient temperature based hot water setpoint offset

Y = Enabled

N = Disabled (Factory setting) Start Point: Starting point

(-15 to 50??C - factory setting: 20??C)

End Point: Ending point

(-15 to 60??C - factory setting: 30??C)

Reset Delta: Reset amplitude

(-15 to 15??C - factory setting: 10??C)

4. Operating mode

To access one of the parameters

Comp seq: Compressor sequencing

1-2: fix order

Mode: Operating mode Cooling: Cold water

production (default factory setting)

Heating: Hot water production (Reversible chillers only)

Extern: (external control) Note: When switching from cooling to heating mode or from heating to cooling mode, unit will stop for 15 s before restarting.

To allow chiller waterflow rate adjustment disable circuit 1 and 2,

The Auto sequence intend to have equivalent numbers of starts and stops and an equivalent number of compressor working hours. The compressor start order will prioritize the compressors which have the least number of working hours. Ckt1/2: Circuit 1/2 operation

Enable: circuit operational

Disable: circuit non- operational

Note: It is possible to disable both circuit 1 and 2. Water pump will be kept in operation

5. Customer Inputs and Outputs

Ana. Input External setpoint reset Y = Enabled

N = Disabled

Pump Timer: Time between unit stop (by keyboard or external contact) and stop of the pump

(1 to 10 min - factory setting = 1 min)

6. Customer outputs configuration

then start the unit.

To access one of the parameters displayed, press and change value using or . Confirm the value by pressing

Analog Input: Signal type

0..10V (factory setting)

0..1V 0..20mA 4..20mA

Note: the total amplitude corresponds to reset delta of +20??C between 0%(0V,OA or 4 mA) and 100% (10V,1V, or 20 mA)

Default I/O: (NO9 / NO11)

This output will be used to give an information about the circuit status: A configuration parameter will allow to choose between the following three indications concerning this circuit:

ALL: All alarms (manual and automatic reset)

ALL But LA: All alarms but without Low Ambient alarm MR only: Manual reset alarms only (factory setting)

Status output: (NO10)

Add Heat: indicate an additionnal heat demand Unit State Send data telling that at least one compressor is ON

(factory setting)

From the menu screen, select

???Clock??? then press . Following screen will appear:

User password

0000

Enter default password:???0000??? (factory set)

Press and cursor will move to first field of password. Pressing or will increment the value from 0 to 9999. Keeping pressure on or will move the numbers fast. Press to confirm password.

Pressing or will allow navigation from screen 1 to 3 as shown hereafter:

1. Clock setting

To access one of the 4 parameters displayed, press and change value

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)

2. ON/OFF program type

When enabled, this program will control the unit operation (On/Off). This program will allow the user to:

-Make a choice between the daily and/or the weekly operation

-Define the operational days and hours

-Define the operating setpoints for each mode (cooling and heating)

The operating mode selected by the operator or by the external control will be taken into account. Example:

To access one of the parameters displayed, press and change value using or . Confirm the value by pressing

Weekly: Weekly program

Y: Enabled

N: Disabled (factory setting)

Daily: Daily program

Y: Enabled

N: Disabled (factory setting)

2.1 Weekly program

To access one of the parameters

Start: Starting day

Stop: Ending day

2.2 Daily program

To access one of the parameters displayed, press and change value using or . Confirm the value by pressing

Start: Start time

Stop: Stop time

3. Hourly Zone

The Daily/weekly program will allow you to define the cooling mode and heating mode setpoints. It will be possible to define within a day, four operating zones with different setpoint as follows:

Example:

To validate hourly zone program, press and change value using or . Confirm the value by

pressing

Program

Hourly zone

Disable

Disable: No program

Enable: Program used

3.1 Defining Zones

To access one of the parameters displayed, press and change value using or . Confirm the value by pressing

Start: Beginning Time

Cooling StP: Cooling mode setpoint

(-20 to 20??C - factory setting: 7??C)

Heating StP: Heating mode setpoint - Reversible chillers only (20 to 60??C factory setting: 45??C)

Press or to reach zones 2,3 and 4. Proceed the same way as above for programming parameters.

From the menu screen, select ???Configuration??? then press . Following screen will appear:

User password

0000

Enter default password:???0000??? (factory-set)

Press and cursor will move to first field of password. Pressing or will increment the value from 0 to 9999. Keeping pressure on or will move the numbers fast. Press to confirm password.

Pressing or will allow navigation from screen 1 to 11 as shown hereafter:

1. Unit definition

To access one of the 4 parameters

Figure 5 - Single pump operation

Note: figures 5 to 8, Unit Off means that the unit is stopped by keyboard or by an external contact

On

On

Pump

Off

t

Figure 6 - Dual pump operation

On

Unit

Off

On

Pump 1

Off

On

Pump 2

Off

t

Unit Type: Unit type

Chiller: Cooling only

Heat pump: Reversible chiller Refrg: Refrigerant R407C, R134a, R410A or R22

Fans/ckt: Number of fans per circuit: 1, 2, or 3

Note: Setting number of fans at 0, will stop all the fans, but will allow the compressors to run before being 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.

When twin pumps are used, a pump switch will occur at each start and also in case of fault on the pump in operation.

Figure 7 - Single pump protection

Pump protection- input

Pump protection- output

Unit stopped (manual reset)

2. Compressors timers

To access one of the parameters

ACC 1st Start: Short cycle compressor at first start (0 to 60 min - factory setting: 2min)

ACC On-On: Short cycle between 2 starts of the same compressor (2 to 10 min - factory: 5 min)

Min On-On: Minimum time to add compressor (5 to 240 s - factory setting: 60s)

Min Off-Off: Minimum time to remove compressor (1 to 120 s factory setting 15s)

3. HP Control

To access one of the parameters

Fan Control: Fan type:

1 speed: 1 Speed fan

2 speed: 2 Speed fan

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)

4. Control dead bands

To access one of the parameters

Dead band Cmp: Compressors regulation dead band around water temperature (0.4 to 8.0??C - factory setting: 3.0??C)

AntiFreeze: Cold water temperature limit (-15 to 10??C - factory setting: 2??C)

Heater: Evaporator heater setpoint according to ambient air temperature (0 to 10??C - factory setting: 3??C)

5. Winter Freeze Protection

Chilled water high limit: (15 to 25??C: factory setting 15??C)

Water pump cycle OFF: (5 to 15 min: factory setting 10min)

Winter Freeeze protection with pump:

No ??? Heater or Ethylene

Glycol Required

Yes ??? Ctrl Pump Required

6. Sensors and transducers

To access one of the parameters

Temp probe: Sensor type: NTC (factory setting)

PT100

Press probe: Pressure transducer:

0..10V 0..1V 0..20mA

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

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)

8. Analog Output (for speed inverter) Note: This screen is displayed only if ???Invert??? has been selected in the HP control menu (refer to ??3)

To access one of the parameters displayed, press and change value using or . Confirm the value by pressing

(11 to 40 bar - factory setting: 16 bar)

9. Operating limits (cooling)

Low ambient temperature limitation:

On: (factory setting) Low ambiant limited

Off: Low ambient temperature not limited

Low ambient limit: -20 to 20??C: factory setting -10??C

Chilled water high limitation:

On: High water temperature limited (factory setting)

Off: High water temperature not limited

Chilled water high limit: 10 to 20 ??C: Factory setting 15??C

10. Defrost demand setpoint

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)

11. Defrost cycle termination

To access one of the parameters

Term StP: Defrost termination setpoint (10 to 30bar - factory setting: 20 bar)

Drying time: Drying time (5 to 30

seconds - factory setting: 12s)

Max Defrost: Maximum defrost time (5 to 30 minutes - factory setting:

7 min)

Min cycle: Minimum time between defrost cycle (15 to 60min - factory setting: 25 min)

Note: Dual circuits have two independent refrigerant circuits. Defrost cycle will only occur on the circuit that needs it. The other circuit will continue its normal operation if required.

12. Compressor alarm

To access one of the parameters displayed, press and change value using or . Confirm the value by pressing

Compressor alarm

00000 h

Default parameters?

N

Compressor alarm: Operating hours for a warning (0 to 999000 hours by 1000 hours)

Setting compressor alarm at 000000 h will disable the function.

Note: Total operating hours = compressor running hours + 3 x compressor starts

Default parameters?: Set the default parameters

Y: Reset all parameters

N: Keep all parameters

Note: When resetting, all parameters programmed on site will be definitively lost. Only factory default set parameters will be kept. Full configuration of the unit will have to be checked.

1. Alarms display and Resetting

A fault on a unit will be shown through the user interface or through 2 digital outputs, one for each refrigerant circuit.

The alarms are divided into 3 categories:

-Warning. Shows that something is wrong on the unit but unit can be kept in operation. A message is displayed on the user interface 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.

2. Alarms history

200 events can be recorded by TRACER CH532. Each record will give the fault description, the reset type, the order and the day and time of occurrence.

Maintaining for 5 seconds give will access to the last event recorded.

Then using allows the user to view the complete history. (refer to table 5 for possible messages)

1.Connection to the Tracer CH532

2.Terminal block to the LonWorks?? network (GND,A,B)

3.Service pin

4.Green status LED

5.Red service LED

To activate the service pin, simply short circuit the two pins for a moment using the tip of a screwdriver or similar tool. The service pin is available only in the 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.

Safety recommendations

To avoid accidents and damage, the following recommendations should be observed during maintenance and service visits:

1.The maximum allowable pressures for system leak testing on low and high pressure side are given in the chapter ???Installation???. Always provide a pressure regulator.

2.Disconnect the main supply before any servicing on the unit.

3.Service work on the refrigeration system and the electrical system should be carried out only by qualified and experienced personnel.

Maintenance contract

It is strongly recommended that you sign a maintenance contract with your local Service Agency. This contract provides regular maintenance of your installation by a specialist in our equipment. Regular maintenance ensures that any malfunction is detected and corrected in good time and minimizes the possibility that serious damage will occur. Finally, regular maintenance ensures the maximum operating life of your equipment. We would remind you that failure to respect these installation and maintenance instructions may result in immediate cancellation of the warranty.

Training

The equipment described in this manual is the result of many years of research and continuous development. To assist you in obtaining the best use of it and maintaining it in perfect operating condition over a long period of time, the manufacturer has at your disposal a refrigeration and air conditioning service school. The principal aim of this is to give operators and technicians a better knowledge of the equipment they are using, or that is under their charge. Emphasis is particularly given to the importance of periodic checks on the unit operating parameters as well as on preventive maintenance, which reduces the cost of owning the unit by avoiding serious and costly breakdown.

www.trane.com

For additional information, contact:

Distributor/Installer stamp

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.