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12.4.4 Operation Setup
Heat
24. 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.
Regardless of the above setting, the water temperature will be limited as follows.
Outdoor temperature
Maximum water temperature limit
55°C
-20°C
60°C
-15 ~ 0°C
65°C
5 ~ 20°C
60°C
25 ~ 35°C
However, only when T is set to 15°C, the water temperature setting of 61°C or higher
will take effect.
In 2 zone system, zone 1 and zone 2 water temperature can be set separately.
25. 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
26. 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
27. Heater ON/OFF
0°C
OFF
ON
a. Outdoor temp. for heater ON
Initial setting: 0°C
Set outdoor temp when back-up heater starts to operate.
Setting range is -20°C ~ 15°C
User shall set whether to use or not to use heater.
b. Heater ON delay time
Initial setting: 30 minutes
Set delay time from compressor ON for heater to turn ON if not achieve water set
temperature.
Setting range is 10 minutes ~ 60 minutes
0 : 30
Heater ON
Compressor
ON
c. Heater ON: T of target Temp
Initial setting: -4°C
Set water temperature for heater to turn on at heat mode.
Setting range is -10°C ~ -2°C
Water
Set
Temp.
-2°C
-4°C
Heater ON
Heater OFF
d. Heater OFF: T of target Temp
Initial setting: -2°C
Set water temperature for heater to turn off at heat mode.
Setting range is -8°C ~ 0°C
Cool
28. Water temp. for cooling ON
Initial setting: Compensation curve
20°C
30°C
5°C
20°C
compensation curve
Set target water temperature to operate cooling 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.
29. T for cooling ON
Initial setting: 5°C
Out
Return
Return — Out = 1°C ~ 15°C
Set temp difference between out temp & return temp of circulating water of Cooling 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
