Electric Heater (Heating); Electric Heater (Dhw); Mixing Valve Control; Pump Speed - Mitsubishi Electric EHST20C-VM6HB Service Manual

<Electric heater (Heating)>
From the Auxiliary settings menu highlight Electric heater (Heating).
1.
Press CONFIRM.
.
The Electric heater (Heating) screen is displayed.
.
Press F1 button to switch the function ON/OFF.
4.
Use F3 and F4 buttons to adjust the time period of heat pump only operation
5.
before the booster heater will assist in space heating. (5 -180mins)
<Electric heater (DHW)>
From the Auxiliary settings menu highlight Electric heater (DHW).
1.
Press CONFIRM.
.
. The Electric heater (DHW) screen is displayed.
Press F1 button to switch the function ON/OFF.
4.
Use F3 and F4 buttons to adjust the time period of heat pump only operation
5.
before the booster heater and the immersion heater (if present) will assist in
DHW heating. (15 -30mins)
<Mixing valve control>
From the Auxiliary settings menu highlight Mixing valve control.
1.
Press CONFIRM.
.
The Mixing valve control screen is displayed.
.
Use F1 and F2 buttons to set Running time between 30 to 240 seconds. The
4.
Running time equals to a period from full open of the valve (at a hot water
mixing ratio of 100%) to full close (at a cold water mixing ratio of 100%).
Note: Set the Running time according to the specifications of the actuator
of each mixing valve.
From the Auxiliary settings menu highlight Mixing valve control.
1.
Press CONFIRM.
.
The Mixing valve control screen is displayed.
.
Press F3 and F4 buttons to set the interval between 2-zone temperature
4.
controls of the mixing valve between 1 to 30 mins.
Note: It is recommended to set the interval to 2 minutes that is a default
value. With the interval set longer, it could take longer to warm up a
room.
<Pump speed>
From the Auxiliary settings menu highlight water circulation pump speed.
1.
Press CONFIRM.
.
Press F3 and F4 buttons to select a refrigerant address of which you wish to
.
configure or check the settings, and press CONFIRM.
Press CONFIRM.
4.
5. The Pump speed screen is displayed.
Use F2 and F3 buttons to set the pump speed of the water circulation pump
6.
between 1 to 5.
OCH531
Electric heater (Heating) screen
Electric heater (DHW) screen
Mixing valve setting screen
Pump speed setting screen
8