Mitsubishi Electric ecodan EHST20 Série Manuel D'installation page 40

5
System Set Up
<Mixing valve control>
1. From the Auxiliary settings menu highlight Mixing valve control.
2. Press CONFIRM.
3. The Mixing valve control screen is displayed.
4. Use F1 and F2 buttons to set Running time between 30 to 240 seconds. The
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 runing time according to the specifications of the actuator of
each mixing valve.
1. From the Auxiliary settings menu highlight Mixing valve control.
2. Press CONFIRM.
3. The Mixing valve control screen is displayed.
4. Press F3 and F4 buttons to set the interval between 2-zone temperature
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>
1. From the Auxiliary settings menu highlight water circulation pump speed.
2. Press CONFIRM.
3. Press F3 and F4 buttons to select a refrigerant address of which you wish to
configure or check the settings.
4. Press CONFIRM.
5. The Pump speed screen is displayed.
6. Use F2 and F3 buttons to set the pump speed of the water circulation pump
between 1 to 5.
Heat source setting
The default heat source setting is heat pump and all electric heaters present in
the system to be operational. This is referred to as Standard operation on the
menu.
1. From the service menu use F1 and F2 buttons to scroll through list until
is highlighted.
2. Press CONFIRM.
3. Heat source setting menu screen is displayed.
4. Press F3 button until preferred heat source is displayed.
5. Press CONFIRM.
6. If you wish to return to the service menu without saving the setting press return
button. You will be asked if you are sure you wish to cancel the changes.
Choose Yes or No as appropriate.
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Mixing valve control setting screen
Pump speed setting screen
Heat source setting screen
Cancel last action screen