McQuay MAC 150 CR, MAC 080 CR, MAC 120 CR, MAC 150 C, MAC 100 C User Manual

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Air-Cooled Mini Chiller

MAC-C-2004

Models: MAC 080 C/CR

MAC 100 C/CR MAC 120 C/CR MAC 150 C/CR

M4AC 080 C/CR M4AC 100 C/CR M4AC 120 C/CR M4AC 150 C/CR

Contents

Nomenclature.................................................................................................................. 2

General Features and Specifications...................................................................... 2 - 3

Chiller Panel Controller .......................................................................................... 4 - 35

Specifications ........................................................................................................ 36 - 39

Performance Table ................................................................................................ 40 - 45

Technical Data ....................................................................................................... 46 - 47

Outlines and Dimensions...................................................................................... 48 - 50

Wiring Diagrams .................................................................................................... 51 - 54

Special Precautions for R407C............................................................................. 55 - 56

Installation ............................................................................................................. 57 - 61

Servicing and Maintenance ......................................................................................... 62

Troubleshooting ........................................................................................................... 63

Schematic Diagram ...................................................................................................... 64

Parts List and Exploded View............................................................................... 65 - 66

Note: Installation and maintenance are to be performed only by qualified personnel who are

familiar with local codes and regulations, and experienced with this type of equipment,

Caution: Sharp edges and coil surfaces are a potential injury hazard. Avoid contact with them.

Warning: Moving machinery and electrical power hazards. May cause severe personal injury or death.

Disconnect and lock off power before servicing equipment.

2003 McQuay International

"Bulletin illustrations cover the general appearance of McQuay International products at the time of publication

and we reserve the right to make changes in design and construction at any time without notice."

Nomenclature

M 4AC080 C R

Brand Name _ R22 Equipment Air Cooled Norminal Generation (McQuay) 4 R407C Equipment Chiller Cooling _ Cooling

Capacity R Heating

General Features and Specifications

Refrigerant circuit

The unit has been designed with two separate refrigerant circuits, i.e. it has two compressors. By doing so, the unit has part loading capabilities, i.e. 0-50-100% of rated capacity. This will improve the reliability and energy efficiency of the unit, especially during low loading operations. Each circuit is factory brazed and evacuated before accurately charged with refrigerant to ensure optimum performance. Because each circuit is separated, there is no danger of crosscontamination should either one of the compressors experiences a burnt-up. Each circuit is also equipped with a carefully sized thermostatic expansion valve (for cooling only units) to give optimum performance characteristics. For the heat pump versions, the expansion process is done with capillary tubes.

Scroll compressors are used in the unit to give quiet and reliable performance over a wide operating temperature range. However, in order to protect the compressors from damage, a phase protector is provided to prevent the compressors from rotating in the wrong direction.

Condenser Fan Motor

The unit is equipped with two high air flow propeller fan blades which are made of metal. The fans are directly driven by weather proof motors, the motors are of single phase type.

Evaporator

The heat exchanger is made of stainless steel plates closely arranged and brazed together (BPHE) to ensure high heat exchange efficiency. The water flows through the BPHE in a channel on its own, while because of the two compressors, the refrigerant flows through another two separate channels. The refrigerant will either be in a counter-flow or parallel-flow with respect to the water, depending on the mode of operation (cooling or heating).

Safety Protection

The safety protections provided for in the chiller unit are:

a) High and low pressure switches b) Differential water flow switch c) Compressor, water pump and fan motor overload protectors d) Anti-freeze protection sensor

During abnormal condition, the electronic controller will turn off the unit and then display the fault of operation.

Other than that, the unit also has pressure gauges (analog) for each compressor suction and discharge pipes. These are useful for detecting abnormal operating conditions, especially during maintenance services.

Water buffer tank & pipe connection

The unit does not come with a water buffer tank. However, the unit does come with an 8 liters expansion tank. (A 135L water tank is available as optional item)

The external water piping connection can be made either from the left or right side of the unit. Connection is done with I1-1/4” female thread couplings for both supply and return pipes.

Anti-freeze protection

The chiller unit has several anti-freeze protection features:

1. Brazed plate heat exchanger anti-freeze The BPHE has a strip heater around it to prevent water freezing inside.

2. Auto mode The chiller controller will force-on the unit to the heat mode if the outdoor ambient air temperature

becomes too cold.

Maintenance

In order to facilitate maintenance of the controller, a rocker switch is provided to power-off the supply to the PCB. However, switching off this switch will not disconnect the main incoming power supply to the chiller unit.

Coil Guard

The unit also comes with two sets of coil guards (i.e. on the left and right side coils). Each guard is basically a metal mesh which protects the coil from damage due to a side impact on the coil surface itself.

Fin Coating

The finned tube heat exchanger coil used on the chiller unit is made of staggered rows of 3/8” seamless copper tubes, mechanically expanded into die-formed louvered fins. The slit openings on the fins enhance the heat transfer coefficient between the fin surfaces and air.

In order to protect these fins from corrosion, a special fin coating (gold fin) is applied on the surface. This coating is standard on the heat pump version, whereas it is an option on the cooling only model.

Chiller Panel Controller

1. SAFETY CONSIDERATION

Only specially trained and qualified technicians and installers are authorized to install and service this equipment.

1.1 General Installation Recommendations

x Only supply DC voltage (9-17V, typically 12V, maximum current 200mA) as a power source to the device. x Input contact voltage supply should limit to 12VDC or 24VAC. x Isolated all the low voltage wiring (communication bus, etc.) from high voltage power supply wiring.

2. GENERAL DESCRIPTION

2.1 General

The Chiller Panel Controller is designed to control the Chiller operation. This device allows the user to have customized control for each connected unit.

2.2 Features

The requirements of user friendly and easy to use have been taken into account in designing this Chiller Panel Controller. It can do the task as follow:

x Whole system configuration x Unique parameter settings x Operation status display x Tracing fault record (easy in hardware troubleshooting)

The display is shown in an 8-line graphical LCD display. There are 8 dedicated keys available in the panel, which allow user to do the following task:

x Menu selection x Navigation on the screen x Modification of the selected value

During first start-up, the panel will have a default configuration (timer schedule, set point, miscellaneous settings, etc). User can do the changes on that particular configuration later.

2.3 Panel Position

The Chiller Panel Controller can be installed anywhere, as long as it is easy to accessed by authorized personnel. The requirements of installation are:

x Avoid exposure to shocks x Avoid any source of electromagnetic pollution x Avoid installation on uneven vertical surface

2.4 Operation Environmental Condition

x Temperature:

-10ºC to 65ºC Operating Temperature

-20ºC to 85ºC Storage Temperature

x Relative Humidity:

0 to 95% Non - Condensing

3. HARDWARE DESCRIPTION

Legend

Front View

Back View

1 & 2 Navigation key

3 Execute instruction key

4 Cancel instruction key

5 Switching to Heat mode shortcut key

6 Switching to Cool mode shortcut key

7 Toggle ON/OFF shortcut key

8 Show alarm key

9 Graphical LCD display

10 ON/OFF indicator

Legend

Chiller terminal unit connection

1 & 2

Not available

CMOS reset jumper (JH2)

4 5

Chiller bus resistor configuration (JH3)

Not available

Backup battery

3.1 Key Explanation

The 2 navigation keys permit item selection and modifying the selected value.

ENTER key is used to execute the navigation instruction

ESC key is used to cancel the navigation instruction

Shortcut key to switch the operation mode in the Summary Pages

Shortcut key to trigger ON/OFF in the Summary Pages

Shortcut key to show fault / alarm in the Summary Pages

4. INSTALLATION

4.1 Chiller Bus

orted up to 50 units of Chille

Chiller 0 Chiller 1 Chiller 2

Chiller Panel 0

(Master)

Chille

(Slave)

Panel 1

5 way wire (CN8)

Chille Communication bus

CHILLER NETWORK

Chiller panel needs to be energized with +12Vdc. The 5 way wires that provided is once on the easiest solution to establish a communication between the panel and chiller main board (CN8-CN8). If the 5-way wires socket has been occupied in main board, just using 2 insulation wires connected to the +12Vdc and GND terminal block from main board to panel can still energize a panel. Beside that, another 2 insulation wired are needed to establish a communication between panel and chiller main board.

Chiller panel can support maximum up to 50 units of chiller. In the chiller network, duplication of main board unit address is not allowed. Each chiller main board should have their unique unit address (0 – 50). For first time running, user need to assign a unique unit address to each main board in the chiller network. User should follow the procedure below:

x Only power ON one main board at once time. Make sure not others main boards are energized. x By using the panel connected to the main board.

Summary Pages Main Menu Settings Menu

<ENTER>

1. General Set ParameterG7 Unit No

<ENTER>

Key in a unique unit address and press ENTER to execute.

x x De-energized the main board and repeat the procedures again until all the main boards have been assigned a unique unit

<ENTER> Key in “0001” as password

address

IMP ORT A NT : Do not assign a same unit address to more than one chiller main board.

RECOMMENDATION: Please select a coherent model (G1 Model) to all the chiller main boards in the same network

4.2 Others Configuration

x JH2 in Chiller panel should let it open (put the jumper header on one pin only) all the time unless user need to

do CMOS reset to that particular panel.

x JH3 should let it open (put the jumper header on one pin only) all the time as well. x Remember to put in the coin cell battery on the panel. Without the backup battery, the panel will always reset

the time to 12:00am, 1st Jan 2000.

4.3 Installation of the Chiller Panel Controller

x Disconnect the unit and ensure no others unit energy source that supplies the panel. x Open the rear panel of the Chiller Panel (insert a ‘flat-head’ screwdriver in the top joint of main casing with

rear panel to open the rear panel)

x Pass the necessary wires of the panel across the large opening in the rear panel. Place the rear panel flat

support against the wall and make marks on the wall through the four installation holes (inner or outer).

x Drill four appropriate holes in the marked places. x Attach the rear panel to the wall and put on the screws on it. Ensure that all cables are passed through the

hole of the rear panel.

x Connect the wires to the corresponding terminal according to the wiring bus network. The power supply and

communication wires must be correctly connected to ensure that the panel works.

x Close the Chiller panel (ensure the bottom joint is aligned for the casing, then complete others joint part.

Ensure that the contacts at the back of the panel are aligned with each others)

BUS WIRING NETWORK

5. SOFTWARE DESCRIPTION

5.1 Introduction

The Chiller Panel Controller can be used to control/display the status of Chiller.

Status viewing:

x ON/OFF status x Mode (Cooling/Heating/Boiling) x Mode set temperature x Compressor status (ON/OFF/DEFROST) x Water in, Water out, Outdoor air and Panel temperature x Chiller Model (Chiller, Heat Pump, Chiller/Boiler, Chiller+Boiler, Heat Pump/Boiler, Heat Pump+Boiler) x Advance Parameter settings x Defrost sensor temperatures x Compressor Discharge sensor temperatures x Compressor run times x Incoming alarm/fault/error

Status settings:

x ON/OFF switching x Mode setting (Cooling/Heating/Boiling) x Mode set temperature x Manual entering defrost x Advance Parameter settings x Password changing x Panel Option setting (Backlight, Alarm Buzzer, Screen saver, Contrast, Brightness, temperature unit) x Time and Date settings x 7 day programmable settings x Clearing compressor run time

5.2 Menu Structure

Menu Structure Diagram for Chiller

5.3 Chiller Menu Structures

[00]

5.3.1 Summary Pages There are 4 pages in [Summary Pages]. Press UP or DOWN for page scrolling. Press ENTER to go into [Main Menu].

Time and date are shown on top of each page. Beside that, the bottom of each page shows current control unit of the Chiller.

For example: [00] – Chiller Panel controls Chiller ID 0 currently

[03] – Chiller Panel controls Chiller ID 3 currently [All] – Chiller Panel controls all Chiller currently

1st page: Display ON/OFF status, Mode Settings and Temperature settings.

01/01/2000 12:00am

Status : ON

Mode : Cooling

Cool Temp : 12.0ºC

2nd page: Display Compressor status.

01/01/2000 12:00am

Compressor 1 : ON

3rd page : Display Water In, Water Out, Outdoor Air and Panel temperatures.

01/01/2000 12:00am

Water In : 19.8ºC Water Out : 25.6ºC Outdoor Air : 32.2ºC Panel : 20.5ºC

4th page : Display Chiller model, Compressor No. and Chiller ID.

01/01/2000 12:00am

Model : Chiller

No. Comp : 1 Comp

Unit No. : 0

5.3.2 Main Menu

Press ENTER in [Summary Pages] to go into this menu.

Operating Menu

Setting Menu Timer Menu Alarm Menu Displa

MAIN MENU

Operation Menu MAIN MENU

There are 5 sub menus in [Main Menu]. Press UP or DOWN to select sub menus, ENTER to enter into the sub menu or press ESC to exit to [Summary Pages].

5.3.2.1 Operation Menu Select [Operation Menu] in [Main Menu] and press ENTER to go into this menu.

OPERATION MENU

Status :ON

Mode : Cooling Cool Temp : 12.0ºC Heat Temp : 40.0ºC

OPERATION MENU

Some normal settings can be found here. Press UP or DOWN to select each settings, ENTER to start the setting or press ESC here to exit to [Main Menu].

Settings: - ON/OFF unit

- Mode changing (Cooling/Heating/Boiling)

- Cooling temperature setting

- Heating temperature setting

- Manual Defrost Selection

Comp 1

5.3.2.1.1 Manual Defrost

Select [Manual Defrost] in [Operation Menu] and press ENTER to go into this menu.

Defrost Compressor

Comp 1

This menu lets user select one compressor to enter into defrost cycle manually, as long as the environment fulfill the defrost requirement.

5.3.2.2 Settings Menu

Select [Settings Menu] in [Main Menu] and press ENTER to go into this menu.

SETTINGS MENU Set Parameter

Change Password Panel Option Set Panel ID

Operation Menu MAIN MENU

Some advance settings can be found here. Press UP or DOWN to select each settings, ENTER to start the setting or press ESC here to exit to [Main Menu].

Settings: - Set Parameter

- Password Changing

- Panel Option

- Set Panel ID

5.3.2.2.1 Set Parameter

Select [Set Parameter] in [Settings Menu] and press ENTER to go into this menu.

1.General

2. Sensor

3. Regulator

4. Compressor

5. Defrost

6. Antifreeze

7. Alarm and Contact

Comp 1

There are 7 groups of advance parameters for user to set in this menu. Press UP or DOWN to select the group, ENTER to go into the group or ESC to exit to [Setting Menu].

Settings: - General

- Sensor

- Regulator

- Compressor

- Defrost

- Antifreeze

- Alarm and Contact

5.3.2.2.2 Password Changing

Select [Password Changing] in [Settings Menu] and press ENTER to go into this menu.

Please enter the old password………

- - - -

User can change the old password in this menu.

Press ESC to exit to [Settings Menu].

5.3.2.2.3 Panel Option Select [Panel Option] in [Settings Menu] and press ENTER to go into this menu.

Operation Menu MAIN MENU

User can do some miscellaneous settings for the panel. These settings would not affect whole system performance.

Settings - toggle Backlight

Press ESC to exit to [Settings Menu].

5.3.2.2.4 Set Panel ID Select [Set Panel ID] in [Settings Menu] and press ENTER to go into this menu.

Backlight : Normal

Buzzer : On Screen Saver : Disable Timeout : 5m Contrast : 50% Brightness : Medium Temp Unit : ºC

- Alarm Buzzer

- Enable/Disable Screen Saver

- Screen Saver timeout

- Contrast display

- Backlight brightness

- Temperature unit

Please enter the0 Panel ID...

=> Unit 0

User can assign the ID no. to the panel. Example: If ID no. 0 has been assigned, the panel acts like Master Panel Unit. It can choose to control each

Chiller in the network.

If other ID no. (1-50) has been assigned, the panel acts like Slave Panel Unit. It is dedicated to one particular Chiller. It can only control the Chiller with same ID in the network.

Press [ESC] to exit to [Settings Menu].

5.3.2.3 Timer Menu Select [Timer Menu] in [Main Menu] and press ENTER to go into this menu.

TIMER MENU

Clock Setting

Date Setting Timer Schedule Timer : Disable

Operation Menu MAIN MENU

All the timer/schedule settings are included in this menu. Press UP or DOWN to select each settings, ENTER to start the setting or press ESC here to exit to [Main Menu].

Settings: - Set Clock

- Set Date

- Set Schedule (7 days Programmable Timer)

- Enable/Disable Timer Schedule

5.3.2.3.1 Set Clock Select [Clock Setting] in [Timer Menu] and press ENTER to go into this menu.

Set Time :

hh mm

00 : 00

User can set the time in this menu. The time setting is in 24-hour format.

Press [ESC] to exit to [Timer Menu].

5.3.2.3.2 Set Date Select [Date Setting] in [Timer Menu] and press ENTER to go into this menu.

Operation Menu MAIN MENU

User can set the date in this menu. The date is set according to sequence below:

Press [ESC] to exit to [Timer Menu].

5.3.2.3.3 Set Schedule Select [Schedule Timer] in [Timer Menu] and press ENTER to go into this menu.

Set Date :

yyyy mm dd

2000 / 01 / 01

(year) / (month) / (day)

Timer 1 Timer 2

ON OFF ON OFF

Sun 0800 1600 - - - - - - - - -

Mon 0800 1600 - - - - - - - - Tue 0800 1600 - - - - - - - - Wed 0800 1600 - - - - - - - - -

This is the 7 days programmable timer schedule menu. There are 2 ON/OFF events in one day. User can choose to set each day of week (Sunday – Saturday) ON/OFF timer. Before this schedule carry their effect to the Chiller, user need to set the [Timer] in [Timer Menu] to enable.

Press [ESC] to exit to [Timer Menu].

5.3.2.4 Alarm Menu Select [Alarm Menu] in [Main Menu] and press ENTER to go into this menu.

ALARM MENU

Show Alarms

Erase All Alarms

This place keeps records for all previous occurred fault/alarms. User can view the alarm history and clear that record (alarm history) as well. The panel can keep up to 20 fault/alarm records.

Press ESC to exit to [Main Menu].

5.3.2.4.1 Show Alarms Select [Show Alarms] in [Alarm Menu] and press ENTER to go into this menu.

Operation Menu MAIN MENU

Alarm 1

[Ch 0]

Comp 1 overload

01/ 01 / 00 12:00am

User can view all the fault/alarm records in this menu.

The record shows - Alarm type

- Alarm occurred date

- Alarm occurred time

- Alarm occurred unit (Chiller ID)

Beside that, user can erase the alarm record in this menu.

Press [ESC] to exit to [Alarm Menu].

5.3.2.4.2 Erase All Alarms Select [Erase All Alarms] in [Alarm Menu] and press ENTER to go into this menu.

Are you sure ?

Press Enter to erase, or ESC to exit

User can erase all the alarm/fault records at once in this menu.

Press [ESC] to exit to [Alarm Menu].

5.3.2.5 Display Menu Select [Display Menu] in [Main Menu] and press ENTER to go into this menu.

DISPLAY MENU

Detrost Sensor

Discharge Sensor Comp Run Time

This menu displays Defrost Sensor temperature, Compressor Discharge sensor temperature and Compressor Run Time. Beside that, user can clear each Compressor Run Time for Chiller.

Press ESC to exit to [Main Menu].

Operation Menu MAIN MENU

5.3.2.5.1 Defrost Sensor Select [Defrost Sensor] in [Display Menu] and press ENTER to go into this menu.

Defrost Sensor

Cimo 1 : 12.8ºC

User can view the defrost sensor temperature for each compressor in the Chiller.

Press [ESC] to exit to [Display Menu].

5.3.2.5.2 Discharge Sensor Select [Discharge Sensor] in [Display Menu] and press ENTER to go into this menu.

Discharges Sensor

Comp 1 : 36.5ºC

User can view the discharge sensor temperature for each compressor in the Chiller.

Press [ESC] to exit to [Display Menu].

5.3.2.5.3 Comp Run Time

Select [Comp Run Time] in [Display Menu] and press ENTER to go into this menu.

Comp Run Time

Comp 1 : 13579h

User can view the compressor run time for each compressor in the Chiller. Beside that, user can clear each compressor run time in this menu. User needs to key in the correct password before clearing the compressor run time.

Press [ESC] to exit to [Display Menu].

6. OPERATION USER MANUAL

6.1 Starting

Chiller panel can be set as Master or Slave panel unit. When the Panel ID is set to ‘0’, it acts like a Master panel, whereas it is Slave panel if Panel ID is set to others number (1-50).

Chiller panel can control the Chiller if both ID no. (Panel ID and Chiller ID) are same.

For example: Panel ID 1 can only control Chiller ID 1

Master Panel can choose to control each Chiller or control all Chiller at once in the network.

For example: Panel ID 0 (master) can control Chiller ID 0 / ID 1 / ID 32…. or all Chillers at once.

Panel ID can be set in Set Panel ID in Settings Menu:

Please enter the Panel ID….

=> Unit 0

6.2 Chiller Operation Control

[00]

6.2.1 Starting

During power on for the Chiller Panel, it needs to take several times to collect information from the Chiller. At this time, all the status will show ‘--’. Please ensure the particular Chiller exists in the network. When the process is completed, user can start to control the Chiller using the panel.

01 / 01 /2000 12:00am

Status : --

Mode : --

Cool Temp : --

01 / 01 /2000 12:00am

Status : ON

Mode : Cooling

Cool Temp : 12.0ºC

In gathering information process Gathering information completed

6.2.2 Changing Display Unit

Chiller Panel (Master) can choose to control/display each Chiller status. This can be done in [Summary Pages] only.

01 / 01 /2000 12:00am

Status : ON

Mode : Cooling

Cool Temp : 12.0ºC

In [Summary Pages], press and hold ENTER button (1 second) to go into [Unit Selection] menu.

Unit Selection :

Select All

Select One : 0

Unit Selection :

Select All

Select One : 0

Select “Select All” and press ENTER if user want to control all Chiller in the network, or select

“Select One” to control a particular Chiller. Press ESC to exit to [Summary Pages].

Select a Chiller ID via UP or DOWN and press ENTER to confirm or ESC to cancel.

6.2.3 Switching ON/OFF

There are several ways to switch ON/OFF for the Chiller.

i) [Summary Pages]

Press and hold ON/OFF button (hold 1 second). Please note that the ON/OFF button will only function in [Summary Pages].

ii) [Operation Menu]

Summary Pages Main Menu Operation Menu

OPERATION MENU

Status :ON

Mode : Cooling Cool Temp : 12.0ºC Heat Temp : 40.0ºC

OPERATION MENU

Status : ON

Mode : Cooling Cool Temp : 12.0ºC Heat Temp : 40.0ºC

iii) [Timer Menu]

In [Operation Menu], select “Status” and press ENTER.

Toggle ON/OFF via UP or DOWN button, and then press ENTER to confirm the change or ESC to cancel.

Main Menu Timer MenuSummary Pages

7 days programmable timer can turn chiller ON/OFF. User can set the schedule in this [Timer Menu]. Please refer 6.2.11 (page 27) for schedule settings.

6.2.4 Switching Mode

There are several ways to switch the mode for the Chiller. Please take note that some mode cannot be set due to current Chiller model settings.

Chiller Model

Chiller ¥ xx

Heat Pump

Chiller / Boiler

Heat Pump / Boiler

Chiller + Boiler

Heat Pump+ Boiler

Cooling Heating Boiling

¥ ¥ ¥ ¥ ¥

Mode

¥ x X ¥

¥¥

x Auto

¥ Auto

¥ - Allow to set

x - Not allow to set Auto - Turn ON automatically

i) [Summary Pages]

Cooling - Press and hold COOL button. Heating - Press and hold HEAT button (if it allows to set). Boiling - Press and hold HEAT button again (if it allows to set).

ii) [Operation Menu]

OPERATION MENU

Main Menu Summary Pages

Operation Menu

Status : ON

Mode : Cooling

Cool Temp : 12.0ºC Heat Temp : 40.0ºC

OPERATION MENU

Status : ON Mode : Cooling Cool Temp : 12.0ºC Heat Temp : 40.0ºC

In [Operation Menu], select “Mode” and press ENTER to start setting or ESC to exit to [Main Menu].

Toggle ON/OFF via UP or DOWN button, and then press ENTER to confirm the change or ESC to cancel.

6.2.5 Changing Mode Set Temperature

There are 2 ways to change the mode set temperature for the Chiller.

i) [Operation Menu]

OPERATION MENU

Status : ON Mode : Cooling

Cool Temp : 12.0ºC

Heat Temp : 40.0ºC

OPERATION MENU

Status : ON Mode : Cooling Cool Temp : 12.0ºC Heat Temp : 40.0ºC

ii) [Set Parameter]

Main Menu Summary Pages

In [Operation Menu], select “Cool Temp” / “Heat Temp” and press ENTER to start setting or ESC to exit

to [Main Menu].

Change value via UP or DOWN button, and then press ENTER to confirm the change or ESC to cancel.

Operation Menu

Summary Pages Main Menu

Settings Menu

KeyinPassword

Set Parameter

1. General

2. Sensor

3. Regulator

4. Compressor

5. Defrost

6. Antifreeze

7. Alarm and Contact

R1 Cool SP : 12.0ºC

R2 Cool Diff : 3.0ºC R3 Heat SP : 40.0ºC R4 Heat Diff : 3.0ºC R5 Min Cool SP : -20ºC R6 Max Cool SP : 40ºC R7 Min Heat SP : -20ºC

R1 Cool SP : 12.0ºC R2 Cool Diff : 3.0ºC R3 Heat SP : 40.0ºC R4 Heat Diff : 3.0ºC R5 Min Cool SP : -20ºC R6 Max Cool SP : 40ºC R7 Min Heat SP : -20ºC

3. Regulator

In [Set Parameter], select “Regulator” and press ENTER. Press ESC to exit to [Main Menu].

3. Regulator

Select “R3” / “R5” and press ENTER to start setting or ESC to exit to [Set Parameter] menu.

Change value via UP or DOWN button. The borderlines limited by R5&R6 (cool), R7&R8 (heat). Press ENTER to confirm or ESC to cancel.

6.2.6 Manual Defrost

User can choose which compressor will go into manual defrost cycle by using the Chiller Panel, as long as the condition is fulfilled with defrost condition. This can be done in [Operation Menu].

Main Menu Summary Pages

Operation Menu

Please take note that “Manual Defrost” option will only available in HEATING mode. It will disappear in COOLING/BOILING mode.

OPERATION MENU

Status : ON

Mode : Cooling

Cool Temp : 12.0ºC Heat Temp : 40.0ºC

OPERATION MENU

Status : ON

Mode : Heating

Cool Temp : 12.0ºC Heat Temp : 40.0ºC Manual Defrost

“Manual Defrost” disappear when Chiller not in HEATING mode

OPERATION MENU

Status : ON Mode : Cooling Cool Temp : 12.0ºC Heat Temp : 40.0ºC

Manual Defrost

In [Operation Menu], select [Manual Defrost], press ENTER to go into it, or ESC to exit to [Main Menu].

Defrost Compressor

Comp 1

Select which compressor to go into defrost cycle via UP or DOWN button. Press ENTER to confirm or ESC to exit to [Operation Menu].

6.2.7 Advance Parameter Settings

The Chiller Panel provide user a lot of advance parameter settings for the Chiller. The parameters are divided into 7 groups. There all are stored in [Set Parameter] menu and it is password-protected layer in the panel.

*CAUTION: INPROPER SETTINGS WILL CAUSE PERMANENT DAMAGE TO THE CHILLER!!!

Summary Pages Main Menu

7 groups of Advance Parameter:

1) General

G1 Model : Chiller

G2 No.Comp : 1 Comp G3 On/Off In : Disabale G4 Co/ Heat In : Disable G5 Ext Alarm in : Disable G6 Water Sys : Isolated G7 Unit No : 0

2) Sensor

S1 Water Enter : 0.0ºC

S2 Water Leave : 0.0ºC S3 Air Sensor : 0.0ºC S4 Defrost 1 : 0.0ºC S5 Defrost 2 : 0.0ºC S6 Defrost 3 : 0.0ºC S7 Defrost 4 : 0.0ºC

Settings Menu

Key in password

Set Parameter

S8 Cp Dish 1 : 0.0ºC S9 Cp Dish 2 : 0.0ºC S10 Cp Dish 3 : 0.0ºC S11 Cp Dish 4 : 0.0ºC

3) Regulator

R1 Cool SP : 12.0ºC

R2 Cool Diff : 3.0ºC R3 Heat SP : 40.0ºC R4 Heat Diff : 3.0ºC R5 Mix Cool SP : -20ºC R6 Max Cool SP : 40ºC R7 Min Heat SP : -20ºC

R8 Max Heat SP : 90ºC R9 Ax Heat SP : 5.0ºC R10 Ax Heat Diff : 2.0ºC R11 Au Bo SP : 5.0ºC R12 Au Bo Diff : 2.0ºC R13 Au Bo Start : 30m

4) Compressor

C1 Min Run : 120s

C2 Min Stop : 240s C3 2On Interval : 360s C4 2Cp ON Dly : 15s C5 P-Cp ON Dly : 60s C6 Cp-P OFF Dly : 60s

Cut Off : 120ºC

C7 C

5) Condenser Defrost

D1 Start Temp : -3ºC

D2 End Temp : 14ºC D3 Max Dura : 10m D4 Interval : 45m D5 Dly Bfr Def : 0s D6 Dly Aft Def : 0s

6) Cool Mode Antifreeze

A1 Heater SP :5ºC

A2 Heater Diff : 2.0ºC A3 Sensor : Leave A4 Alarm SP : 3ºC A5 Alarm Diff : 2.0ºC

7) Alarm and Contact

P1 FS Confirm :5s

P2 FS Delay : 180s P3 LP Delay : 30s P4 CO Reset : Manual P5 HP Rest : Auto P6 LP Reset : Auto P7 FO Reset : Manual :

P8 RO Reset : Manual P9 FS Reset : Manual P10 Aux Reset : Manual P11 A/F Reset : Manual P12 CO Contact : Normal P13 HP Contact : Normal P14 LP Contact : Normal

Please refer to 8. APPENDIX for detail description.

P15 FO Contact : Normal P16 PO Contact : Normal P17 FS Contact : Normal P18 EA Contact : Normal P19 DE Contact : Normal

6.2.8 Changing Password

For security purpose, some places in the panel are password-protected. User can change the password at anytime.

Summary Pages

Please enter the Old password…….

Main Menu

Settings Menu

Change Password

User needs to enter the old password in order to change the password.

- - - -

Change the 1st digit value via UP or DOWN. Press ENTER to start enter 2nd digit and the rest, or ESC to

exit at anytime.

Password accepted ….

Access granted !

Password error ….

Access denied !

If password correct, this message will be If password not correct, this message will be shown and proceed to new password shown and exit to [Settings Menu] settings.

Please enter the New password…….

- - - -

New password

has been set……

Same as previous, UP DOWN to change value, ENTER to go to next digit, ESC to exit. User is not allowed to set the password to 0000.

New password

‘0 0 0 0’

Is not accepted ……

If new password is accepted, this message If new password is ‘0000’, this message will be will be shown and then exit to [Settings shown and then exit to [Settings Menu]. The Menu]. password remains as previous.

6.2.9 Clock Setting

User can set the clock for the panel.

Summary Pages Main Menu

Set Time :

hh mm

00 : 00

Timer Menu

Set Time

UP or DOWN to change ‘hour’. ENTER to set ‘minute’ or ESC to exit to [Timer Menu].

UP or DOWN to change ‘minute’. ENTER to confirm or ESC to set ‘hour’ again.

6.4.10 Date Setting

User can set the date for the panel.

Summary Pages Main Menu

Timer Menu

Set Date

Set Date :

yyyy mm dd

2000 / 01 / 01

000

UP or DOWN to change ‘year’. ENTER to set ‘month’ or ESC to exit to [Timer Menu].

UP or DOWN to change ‘month’. ENTER to set ‘day’ or ESC to set ‘year’ again.

UP or DOWN to change ‘day’. ENTER to confirm or ESC to set ‘month’ again.

6.2.11 7 Days Programmable Setting

There are 2 ON/OFF events in one day for the schedule. This schedule is applicable to all the chillers in the network.

Summary Pages

Timer 1 Timer 2 ON OFF ON OFF

Sun 0800 1800 - - - - - - - -

Mon 0800 1800 - - - - - - - Tue 0800 1800 - - - - - - - Wed 0800 1800 - - - - - - - -

Timer 1 Timer 2 ON OFF ON OFF

Main Menu

Sun

UP or DOWN select day of week. ENTER to select event or ESC to exit to [Timer Menu].

OFF ON OFF

UP or DOWN select event. ENTER to start setting or

Timer Menu

Set Schedule

ESC to back to select day of week.

Sun 0800 1800 - - - - - - - Mon 0800 1800 - - - - - - - Tue 0800 1800 - - - - - - - Wed 0800 1800 - - - - - - - -

Event setting is same like time setting. User can disable the event by set it to‘- - - -’

Before the schedule will carry the effect, user need to set ENABLE for “TIMER” in [Timer Menu].

OFF ON OFF

TIMER MENU

Set Time Set Date Set Schedule

Timer : Disable

Select “Timer” and press ENTER to start the settings. UP or DOWN to toggle Enable/Disable, ENTER to confirm or ESC to cancel.

6.2.12 Viewing Alarm / Erase Alarm Record

Whenever a new fault/alarm is occurred, there will be a message pop up to show the fault/alarm. Backlight will blinking with beeping sound (if “Alarm Buzzer” is set ON). If the fault/alarm has not been dissolved from the Chiller, a sign [A] will be shown in the [Summary Pages]. Whereas, it will return to [Summary Pages] (from pop up menu) automatically if the fault/alarms have been dissolved.

While the fault/alarms have not been dissolved (sign [A]), user can check that fault/alarm by go into [Alarm

Menu]. If all the fault/alarm have been dissolved, user can view the fault/alarm history records in [Alarm Menu] as well. Screen saver will be deactivated while all the alarms have not been dissolved.

If panel ID is set 0 (Master panel), it can receive and view all the fault/alarms from all chillers in the network.

New Alarm 1

Comp 1 overload

12:00am 01/01/2000

Alarm 1

Comp 1 overload

01/01/00 12:00am

[Ch 0]

[Ch 0] show alarm occurred unit. Press any button to stop backlight blinking and beeping. Press ESC again to exit to normal page.

Summary Pages Main Menu

[Ch 0]

Press UP or DOWN to scroll the record. Press ENTER if user want to erase the record, or ESC to exit to [Alarm Menu].

Alarm Menu

Show Alarms

Erase Alarn ?

Press Enter to erase, Or ESC to exit

000

Press ENTER to erase the alarm, or ESC to cancel.

User can erase all the fault / alarm record at once time through [Erase All Alarms] in [Alarm Menu].

6.2.13 Viewing Defrost Sensor Temperature The Chiller Panel displays defrost sensor temperature for each compressor in [Defrost Sensor] in [Display Menu].

Summary Pages Main Menu

Defrost Sensor

Display Menu

Defrost Sensor

Press ESC to exit to [Display Menu]

Comp 1 : 12.8ºC

6.2.14 Viewing Compressor Discharge Temperature The Chiller Panel displays compressor discharge temperature for each compressor in [Discharge Sensor] in [Display Menu].

Main Menu Summary Pages

Display Menu

Discharge Sensor

Comp1 36.5ºC

Discharge Sensor

000

Press ESC to exit to [Display Menu]

6.2.15 Viewing/Clear Compressor Run Time

User can view / clear the compressor run time for the Chiller in [Comp Run Time] in [Display Menu].

Summary Pages Main Menu

Comp Run Time

Comp 1 : 13579h

Clear Run Time ?

Press Enter to clear, Or ESC to exit

Display Menu

Comp Run Time

Press UP or DOWN to select the compressor. ENTER to start clear the run time, or ESC to exit to [Display Menu].

Press ENTER and key in the password to confirm or ESC to cancel.

6.2.16 Miscellaneous Settings

User can do some miscellaneous settings to the panel.

Summary Pages Main Menu

Backlight : Normal

Buzzer : ON Screen Saver : Disable Timeout : 5m Contrast : 50% Brightness : Medium Temp Unit : ºC

000

Press UP or DOWN to select the item. ENTER to set, or ESC to exit to [Settings Menu].

Press UP or DOWN to toggle the value. ENTER to

irm, or ESC to cance

con

Settings Menu

Panel Option

Parameter Value Description

Backlight

Buzzer

* Screen Saver

* Timeout 1 – 30m Timeout for showing screen saver

Contract 0 – 100% Adjust the contrast setting for the LCD panel

Brightness

Temp Unit

Normal Turn ON backlight for 30s via key press

Always Always ON backlight

ON Enable beeping sound when fault/ alarm occurred

OFF Disable beeping sound when fault / alarm occurred

Enable Show screen saver when timeout

Disable No screen save

OFF No backlight

Low, Medium, High Adjust the backlight intensity

ºC Display temperature in degree Celsius

ºF Display temperature in Fahrenheit

* This product must be branded. Screen saver will be deactivated for brand less panel

6.3 CMOS Reset

x CMOS reset allows user to reset some settings to default value such as:

Password -> 0001 Backlight -> Normal Buzzer -> ON Screen Saver -> Disable Timeout -> 5m Contrast -> 50% Brightness -> Medium Temp Unit -> ºC

x Procedures

1. Power OFF the panel

2. Close the jumper JH2 with the provided jumper header

3. Power ON the panel and the LCD panel should display as follow:

CMOS is resetting ……….

CMOS reset completed!

Please remove JUMPER and restart the panel

4. Remove the jumper header (put the jumper header on 1 pin only), power OFF and then power ON the panel.

7. PROBLEMS AND TROUBLESHOOTING

Symptoms Possible Cause Troubleshooting

Panel gets hot

abnormally

The LCD no display

(blank screen)

'- -' for all status (quite

a long time)

• Wiring fault in 12VDC supply

• Wiring fault in the 12VDC supply

• No power supply • Check the wiring and supply 12VDC to panel

• Voltage supply too low • Check the power source

• Module defective • Change a new panel module

• Panel cannot/not yet received the information from Chiller or FCU completely

• That particular unit address is not recognized by the panel

• Module defective • Change a new module

• Change a new panel module and turn ON the unit again after the verification

• Correct the wiring problem

• Ensure the selected unit exists in the network.

• Ensure the wiring is correct.

• Ensure the wiring is not defective.

• Ensure the wiring has been isolated from high power cable

• Select a coherent unit address on the panel (refer to

6.2.2)

ON/OFF, COOL or

HEAT button not function

Cannot switch to

HEATING mode

Cannot switch to

BOILING mode

No "Manual Defrost"

item

Cannot step inside [Set

Parameter]

7 Days Programmable

Timer not function

No beeping sound

when new alarm occurred

No screen saver after

timeout

• Software limitation

• Module defective • Change a new module

• Software limitation

• Software limitation • Ensure current running mode is HEATING

• Software limitation. Panel has not received all the information from Chiller completely

• Software limitation. User

did not activate the schedule

• Software limitation. User did not set ON to the alarm buzzer

• Software limitation. User did not set ENABLE to the screen saver

• Ensure it is pressed (hold 1s) in [Summary Pages],

not in others menu.

• Ensure this mode is available in current "Model" of

Chiller. Please refer to 6.2.4

• Ensure this mode is available in current "Model" of

Chiller. Please refer to 6.2.4

• Refer to symptoms 3

Control of Chiller:

• Ensure the "Timer" in [Timer Menu] is set ENABLE Control of Chiller:

• Ensure the "Timer" in [Operation Menu] is set ENABLE

• Ensure "Buzzer" in [Panel Option] is set ON

• Ensure "Screen Saver" in [Panel Option] is set

ENABLE

Time always reset to 12:00am,1

Panel stop operation.

Whole operation freezing (hang)

Jan 2000

• No backup battery

• Energy of the backup battery is low

• Unstable power supply

• Energy of the backup battery is low

• Replace a coin cell battery

• Power off the panel. Take out the backup battery as well. Replace with a new 3V coil cell battery if necessary. Put back the backup battery into the panel and power on again.

8. APPENDIX

)0(0)

)

)10(18)

)

)10(18)

GENERAL Type Unit Default

G1 Model

O=Chiller, 1=Heat Pump, 2=Chiller/ Boiler, 3=Heat pump/Boiler, 4=Chiller+Boiler, 5=Heat pump+Boiler

Number of compressor

1=1 compressor, 2=2 compressor 3=3 compressor, 4=4 compressor

On/off input

0=disable, 1=enable

Cool/Heat input

0=disable, 1=enable

External alarm input

0=disable, 1=enable

Water system for chiller network

0=independent, 1=modular

G7 Unit number F Flag 0 0 50 1

Min Max Resolution

FFlag4

(Chiller+Boiler)

FFlag1 14 1

FFlag0(disable)01 1

F Flag 0 (disable) 0 1 1

FFlag0(disable)01 1

0 2 1

SENSOR

S1 Entering water sensor calibration S2 Leavingwater sensor calibration U °C(°F S3 Air sensor calibration U °C(°F S4 Defrost(condenser) sensor 1 calibration U °C(°F S5 Defrost(condenser) sensor 2 calibration U °C(°F S6 Defrost(condenser) sensor 3 calibration U °C(°F S7 Defrost(condenser) sensor 4 calibration U °C(°F S8 Compressor discharge sensor 1 calibration U °C(°F S9 Compressor discharge sensor 2 calibration U °C(°F S 10 Compressor discharge sensor 3 calibration U °C(°F

S11 Compressor discharge sensor 4 calibration U °C (°F) 0 (0) -12 (-21.6) 12 (21.6) 0. 1

REGULATOR Type Unit Default Min Max Resolution

R1 Cooling set-point D °C (°F) 12 (53.6) R5 R6 0.1 R2 Cooling differential U °C (°F) 1.5* (2.7) 0.4 (0.7) 10(1 8 ) 0.1

R3 Heating set-point D °C (°F) 40 (104) R7 R8 0.1 R4 Heating differential U °C (°F) 1.5* (2.7) 0.4 (0.7) 10 (18) 0.1 R5 Minimum Cooling set-point U °C (°F) 7 (44.6) -20 (-4) R6 1 R6 Maximum Cooling set-point U °C(°F)20(68 R7 Minimum Heating set-point U °C (°F) 3 0 (8 6 ) -20 (-4) R8 1 R8 Maximum Heating set-point U °C (°F) 50 (122) R7 90 (194) 1

Auxiliary heater set-point (threshold below

R10 Auxiliary heater differential U °C(°F)2(3.6 R11

R12 Auto boiler differential U °C(°F)2(3.6 R13 Auto boiler start time threshold U min 30 0 199 1

set-point

heatin

Auto boiler set-point (threshold below heating

oint

set-

Type Unit Default Min Max Resolution

U °C (°F) 5 (9) 0 (0) 40 (72) 0.1

ºC( F) 0 (0) -12 ( 216) 12 (21.6) 0.1

-12(-21.6)12(21.6)0.1

R5 40(104)1

0.4(0.7

0.1

COMPRESSOR Type Unit Default Max Min Resolution

C1 Compressor minimum run time

C2 Compressor minimum stop time U sec 180 0 1990 10

C3 Time interval between two starts U sec 450 0 1990 10 C4 Start delay between two compressors U sec 15 0 199 1 C5 Pump on ĺ compressor on dela C6 Comp off ĺ pump off dela

C7 Discharge cut-off set-point U °C 120 (248) 0 (32) 150 (302) 1

CO ND EN SE R DE FR OST Typ e Unit Default Max Min Resolution

D1 S ta rt d ef rost t em pera tu re U °C (ºF ) 0 (32) -20 (-4) D2 1

D2 End defrost temperature U °C (ºF) 14 (57) D1 40 (104) 1

Usec120

U sec 180 0 1990 10 U sec 60 0 199 10

1990 10

D3 Maximum duration of defrost cycle U min 10 1 40 1

(

)

(

)

(

)

(

)

(

)

(

)

(

)

(

)

y open(NO)

y op

)

y open(NO)

D4 Defrost interval time U min 4 5 0 199 1

D5 Delay before defrosting U sec 0 0 1990 10

D6 Delay after defrosting U sec 120 0 1990 10

COOL MODE ANTIFREEZE Type Unit Default Min Max Resolution

A1 Antifreeze heater set-point U °C ( F) 5 (41) -40 (-40) 40 (104) 1 A2 Antifreeze heater differential U °C (°F) 2 (3.6) 0.4 (0.7) 10 (18) 0.1

Antifreeze sensor select

0=Leavin

A4 Antifreeze alarm set-point U °C (°F) 3 (37) -40 (-40) 40 (104) 1 A5 Antifreeze alarm differential U °C (°F) 2 (3.6) 0.4 (0.7) 10 (18) 0 .1

water, 1=Entering wate

U Flag

leavin

ALARM AND CONTACT

P1 Flow switch confirmation time U sec 5 0

P2 Flow switch alarm delay at pump start U sec 120 0 199 1 P3 Low pressure alarm delay at compressor start-up U sec 30 0 199 1

P4 Comp overload alarm reset type U Flag 0 0 1 1

0=Manual reset, 1=Auto reset

High pressure alarm reset type U Flag 1 0 1 1 0=Manual reset, 1=Auto reset

P6 Low pressure alarm reset type U Fla

0=Manual reset, 1=Auto reset

P7 Fan overload alarm reset typeUFla

0=Manual reset, 1=Auto reset

Pump overload alarm reset typeUFla 0=Manual reset, 1=Auto reset

P9 Flow switch alarm reset type U Fla

0=Manual reset, 1=Auto reset

P10 Auxiliary alarm reset type U Fla

0=Manual reset, 1=Auto reset

P11 Antifreeze alarm reset type U Fla

0=Manual reset, 1=Auto reset

P12 Comp overload contact type U Flag 0 0 1 1