Carrier AQUASNAP 30RH User Manual download pdf (Page 3)

GENERAL LEGEND

Each of the following drawings is replaced in the whole document by the corresponding explanation:

Start/stop button

Return key

Down arrow

Up arrow

DELTA T. Example: temperature difference between entering and leaving heat exchanger temperatures

means character is flashing

The cover photograph is solely for illustration and forms no part of any offer for sale or any sale contract. The

manufacturer reserves the right to change the design at any time without notice.

5 - PRO-DIALOG PLUS CONTROL OPERATION .................................................................................................................29

5.1 - Start/stop control ................................................................................................................................................................29

5.2 - Heating/cooling operation ..................................................................................................................................................30

5.2.1 - General.......................................................................................................................................................................30

5.2.2 - Heating/cooling selection ..........................................................................................................................................30

5.3 - Evaporator water pump control ..........................................................................................................................................31

5.4 - Control interlock contact ....................................................................................................................................................31

5.5 - Evaporator heater control ...................................................................................................................................................31

5.6 - Control point.......................................................................................................................................................................31

5.6.1 - Active setpoint ...........................................................................................................................................................31

5.6.2 - Reset ..........................................................................................................................................................................33

5.7 - Demand limit ......................................................................................................................................................................33

5.8 - Night mode .........................................................................................................................................................................33

5.9 - Capacity control .................................................................................................................................................................33

5.10 - Head pressure control .......................................................................................................................................................33

5.11 - Defrost function................................................................................................................................................................34

5.12 - Additional electric heater stage control ............................................................................................................................34

5.13 - Control of a boiler ............................................................................................................................................................34

5.14 - Master/slave assembly ......................................................................................................................................................34

5.15 - Controlling Pro-Dialog Plus units with a System Manager .............................................................................................34

6 - DIAGNOSTICS - TROUBLESHOOTING ............................................................................................................................35

6.1 - General ...............................................................................................................................................................................35

6.2 - Displaying alarms ...............................................................................................................................................................35

6.3 - Resetting alarms .................................................................................................................................................................35

6.4 - Alarm codes........................................................................................................................................................................35