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20. Defrost signal
Initial setting: No
System setup
12:00am,Mon
Heat-Cool SW
Force heater
Force defrost
Defrost signal
Select
Confi rm
Defrost signal sharing same terminal as bivalent contact in main board. When
defrost signal set to YES, bivalent connection reset to NO. Only one function can
be set between defrost signal and bivalent.
When defrost signal set to YES, during defrost operation is running at outdoor
unit defrost signal contact turn ON. Defrost signal contact turn OFF after defrost
operation end.
(Purpose of this contact output is to stop indoor fan coil or water pump during
defrost operation).
21. Pump
fl
owrate
Initial setting:
T
System setup
12:00am,Mon
Force heater
Force defrost
Defrost signal
Pump fl owrate
Select
Confi rm
If pump fl owrate setting is
T, unit adjust pump duty to get different of water inlet
and outlet base on setting on *
T for heating ON and *
T for cooling ON in
operation setup menu during room side operation.
If pump fl owrate setting is set to Max. duty, unit will set the pump duty to the set
duty at *Pump maximum speed in service setup menu during room side operation.
3-4. Operation Setup
Heat
22. Water temp. for heating ON
Initial setting: compensation curve
35°C
-5°C
15°C
55°C
Hot water temperature
compensation curve
Outdoor
temperature
Decide temperature
of 4 points as shown
in diagram
Set target water temperature to operate heating operation.
Compensation curve: Target water temperature change in conjunction with
outdoor ambient temperature change.
Direct: Set direct circulation water temperature.
In 2 zone system, zone 1 and zone 2 water temperature can be set separately.
23. Outdoor temp. for heating OFF
Initial setting: 24°C
24°C
OFF
ON
Set outdoor temp to stop heating.
Setting range is 5°C ~ 35°C
24.
∆
T for heating ON
Initial setting: 5°C
Out
Return
Out — Return = 1°C ~ 15°C
Set temp difference between out temp & return temp of circulating water of
Heating operation.
When temp gap is enlarged, it is energy saving but less comfort. When the
gap gets smaller, energy saving effect gets worse but it is more comfortable.
Setting range is 1°C ~ 15°C
Содержание WH-UD03JE5
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