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17. Circulation Liquid
Initial setting: Water
System setup
17:26, Wed
Demand control
SG ready
External compressor SW
Circulation liquid
Select
Confirm
Set circulation of heating water.
There are 2 types of settings, water and anti-freeze function.
(CAUTION) Please set glycol when using anti-freeze function.
It may cause error if setting is wrong.
18. Heat-Cool SW
Initial setting: Disable
System setup
17:26, Wed
SG ready
External compressor SW
Circulation liquid
Heat-Cool SW
Select
Confirm
Able to switch (fix) heating & cooling by external switch.
(Open) : Fix at Heating (HDHW)
(Short) : Fix at Cooling (CDHW)
(CAUTION) This setting is disabled for model without Cooling.
(CAUTION) Does not display if there is no Optional PCB.
Timer function cannot be used. Cannot use Auto mode.
11.3.4 Operation Setup
Heat
19. 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.
20. 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
21.
Δ
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
22. Outdoor temp. for heater ON
Initial setting: 0°C
0°C
OFF
ON
Set outdoor temp when back-up heater starts to operate.
Setting range is -15°C ~ 20°C
User shall set whether to use or not to use heater.
