Mitsubishi Electric Ecodan HUS210FTC4ST Installation Manual page 63

Main Controller
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1. From the Auxiliary settings menu highlight Economy Settings for water circulation pump.
2. Press CONFIRM.
3. The economy settings for water circulation pump screen are displayed.
4. Use button F1 to switch the water circulation pump ON/OFF.
5. Use buttons F3 and F4 to adjust the time the water circulation pump will run. (3 - 60 mins)
Electric Heater (DHW)
1. From the Auxiliary settings menu highlight Electric heater (DHW).
2. Press CONFIRM.
3. The Electric heater (DHW) screen is displayed.
4. Press F1 button to switch the function ON/OFF.
5. Use F3 and F4 buttons to adjust the time period of heat pump only operation before the booster
heater and the immersion heater (if present) will assist in DHW heating. (15 -30mins)
Mixing Valve Control
This function is not applicable to the Mitsubishi Electric pre-plumbed cylinder.
Pump Speed
This function is not available via the main controller, pump speed on the 'Mitsubishi Electric pre-plumbed cylinder'
is adjusted via the speed selector on the pump body, for further details please see the circulation pump section in
this manual.
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. Electrical heaters are turned on and off separately so
in the case that all heaters are turned off 'standard' will refer to heat pump only operation.
1. From the service menu use F1 and F2 buttons to scroll through
list until Heat Source Setting is highlighted.
2. Press CONFIRM. Heat source setting menu screen is displayed.
3. Press F3 button until preferred heat source is displayed.
4. Press CONFIRM.
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.
Operation Settings
1. To access the Operation settings menu use F1 and F2 buttons to scroll through the service menu
until Operation settings is highlighted.
2. Press CONFIRM.
3. Operation settings menu is displayed.
Freeze Stat Function
UK Ecodan systems must have antifreeze added; this ensures a failsafe against freezing circuits is achieved.
®
A split in the outdoor unit plate heat exchanger is a very expensive failure as is split pipework within the property.
The freeze stat function is a generic feature that must be turned off to avoid unnecessary power consumption.
As all UK systems must have antifreeze added this feature is redundant. Under the 'freeze stat function' sub menu
reduce the outdoor temperature until **ºC is displayed; this will ensure the function is turned off.
(continued)
FTC4 Installation Manual
63