Thermocold DOMINO BASIC Series Manuale utente

AIR-WATER AND WATER-WATER UNIT FOR 2 PIPES SYSTEMS

USER MANUAL

Series DOMINO BASIC/MEX/MFX/EASY

Cod. MU –ICHILL–U –EL –REV01 –0315 –UK

User Manual

WARNING

Supply the unit at least 24 hours before the initial startup to heat the compressor oil. In conditions of low

water temperature, the pumps could start in order to avoid freezing conditions.

In order to avoid the

breaking of heat exchangers due to water hammer be sure to keep to water valves open.

Failure to follow these instructions will void the warranty.

User Manual

INDEX

Advanced electronics

..................................................................................................5

2. Display description

......................................................................................................7

3. Buttons description and their functions

..................................................................9

4. On/Off of the unit

......................................................................................................11

5. Set point display

........................................................................................................11

6. Set point editing

........................................................................................................11

7. Dynamic Set Point

.....................................................................................................12

8. Alarm display

..............................................................................................................13

9. Alarm reset

.................................................................................................................13

10. Remote control of the unit

.....................................................................................14

11. Controlling the unit remotely by free contacts

..................................................14

12. Controlling the unit remotely by ModBus protocol

...........................................15

13. Configuration parameters

......................................................................................16

14. Parameters table

.....................................................................................................17

15. Alarms

.......................................................................................................................19

16. Remote display

........................................................................................................20

User Manual

Advanced electronics

The control logic, developed by Thermocold, is able to manage air/water and water/water groups chiller and

heat pump versions.

This control logic, according the type of the unit, is able to handle units with single refrigerant circuit

equipped with two scroll compressors with a proportional step regulation according inlet water temperature

for air-water or water-water units.

On the condensing units, the electronic card will active steps according the number of the activated digital

input by an external thermostat or PLC.

User Manual

Technical Specifications

Power supply

24V AC/DC

Digital inputs

5 free voltage

Analogue inputs

3 NTC + 1 configurable: 0÷5V, 4÷20mA, NTC

Analogue outputs Opto-Insulated

4 configurables: 0÷10V signal, external relay driving

Relay outputs

5 x 5(2) A @ 250V SPST + 1 open collector 12Vdc 40mA max

Remote terminal

Serial outputs

1 RS485 slave with Mod_BUS communication protocol( only with adaptor)

User Manual

Display description

Through the LED display, you can monitor and change the status of the unit, using the 6 buttons

positioned in the lower part of the keypad

Available information on display:

By pressing the UP and DOWN keys on the Home screen, you can view the following values:

• "Pb1": Displays the water temperature at the exchanger inlet air-conditioning;

• "Pb2": Displays the temperature of the water leaving the exchanger of air-conditioning;

• "Pb4": Displays the outside air temperature (only for air / water if present);

• "Pb3": Display the condensing pressure in cooling mode, and the evaporating pressure in heating

mode;

“Pb4”: Displays the temperature of the water leaving the exchanger of source side (only for

water/water if present).

In addition to the input buttons in the menus listed below, are also present in the home screen and

buttons that allow you to activate the machine operation respectively in summer and winter

operation.

The display shows OnC when the unit is on and chiller, OnHwhen the unit is turned on in heat pump and

OFF when the unit is key to OFF.

Description of the icons on the display:

User Manual

Buttons description and their functions

The controller is provided with six buttons to interact with user and installer parameters.

Here below the description of the accessible operations through the buttons.

Press and release in the main display:

It allows you to visualize the chiller (label SETC) or heat pump (label SetH)

set point

Press and release 2 times in the main display:

If the energy saving or dynamic set point is enabled for machines without

storage, the icon Vset is lit and the display shows the work real set

Press for 3 seconds and release in the main display:

It allows you to edit the chiller / heat pump set point

Press and release in the ALrM menu:

It allows you to reset the alarm (if this alarm can be reset) from the menu

ALrM

Press and release:

from the main display it allows you to show the values of the configured

probes (temperature / pressure) in the upper display, and the corresponding

label in the lower display.

Press and release in the PrG menu:

it allows to slide in the parameters folders (ST, CT, etc.) and in the

parameters list.

In parameter editing phase, it increases the value.

Press and release:

from the main display it allows you to show the values of the configured

probes (temperature / pressure) in the upper display, and the corresponding

label in the lower display.

Press and release in the PrG menu:

it allows to slide in the parameters folders (ST, CT, etc.) and in the

parameters list.

In parameter editing phase, it increases the value.

Press and release:

It provides access to menu functions

Press for 3 seconds and release:

it allows you to adjust the watch in the provided models.

Press and release in the PrG menu:

it quits the parameter change.

User Manual

Press and release:

it allows you to switch on the machine on heat pump or select standby mode

Press and release:

it allows you to switch on the machine on chiller or select standby mode

Some controller functions are available through the multiple keys simultaneous pressure; following are the

combinations accepted by the controller.

Simultaneous pressure of buttons for 3 seconds:

it allows to access to parameters programming

Simultaneous pressure of buttons:

1. it allows to quit from parameters programming

2. the simultaneous extended pressure of the buttons active the

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