Panasonic WH-MXC09J3E8 Service Manual page 84

12.4.4 Operation Setup
Heat
24. Water temp. for heating ON
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
-20°C
-15 ~ 0°C
5 ~ 20°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
Set outdoor temp to stop heating.
Setting range is 5°C ~ 35°C
26. T for heating ON
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
a. Outdoor temp. for heater ON
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
Set delay time from compressor ON for heater to turn ON if not achieve water set
temperature.
Setting range is 10 minutes ~ 60 minutes
c. Heater ON: T of target Temp
Set water temperature for heater to turn on at heat mode.
Setting range is -10°C ~ -2°C
d. Heater OFF: T of target Temp
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
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
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
Initial setting: compensation curve
55°C
60°C
65°C
60°C
Initial setting: 24°C
Initial setting: 5°C
Initial setting: 0°C
Initial setting: 30 minutes
Initial setting: -4°C
Initial setting: -2°C
Initial setting: Compensation curve
Initial setting: 5°C
Hot water temperature
Out
Return
Out — Return = 1°C ~ 15°C
Compressor
ON
Water
Set
Temp.
-4°C
Out
Return
Return — Out = 1°C ~ 15°C
84
55°C
Decide temperature
of 4 points as shown
in diagram
35°C
Outdoor
-5°C 15°C
temperature
compensation curve
ON
OFF
24°C
ON
OFF
0°C
Heater ON
0 : 30
Heater OFF
Heater ON
20°C
5°C
20°C 30°C
compensation curve
-2°C