Heating Mode; Cooling Mode - Mitsubishi Electric PAC-IF021B-E Bedienungshandbuch

7. Initial setting by remote controller
<Temperature OFFSET setting>
This setting is to adjust the difference between the actual flow water temperature at the refrigerant-water heat exchanger outlet and the temperature
sensed by TH1 which tends to be lower due to heat leakage from water piping.

HEATING mode

T(a)=Actual Flow water
temp.(outlet side)
⊿T(h)
=T(a)-T(s)
Outdoor unit
*1
Water piping

COOLING mode

T(a)=Actual Flow water
temp.(outlet side)
⊿T(c)
=T(s)-T(a)
Outdoor unit
*1
Water piping
TEMP OFFSET
Set OFFSET temperature
HEATING
TEMP OFFSET
Set OFFSET temperature
COOLING
♦ In order to let the PCB memorize the changed parameters
Make sure to press the
If you press the
ON/OFF
you can exit from this mode without any change.
FTC
TH1
T(s)=sensed flow water
temp.
FTC
TH1
T(s)=sensed flow water
temp.
T(h) in HEATING mode with [TEMP] buttons (
⊿
⊿ T(c) in COOLING mode with [TEMP] buttons (
button before quitting the INITIAL SETTING mode.
CIR.WATER
button in INITIAL SETTING mode before pressing the
*1 Refrigerant-water HEX
and
and
button
CIR.WATER
) .
) .
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