Mitsubishi Electric Ecodan HUS210FTC4ST Installation Manual page 62

Pre-plumbed cylinder with ftc4 control system
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Main Controller
26
Manual Operation
During the filling of the system the water circulation pump and zone valve(s) can be manually overridden using
manual operation mode. When manual operation is selected a small timer icon appears in the screen. The function
selected will only remain in manual operation for a maximum of 2 hours. This is to prevent accidental permanent
override of the FTC4.
From the service menu use F1 and F2 buttons to scroll through list
until manual operation is highlighted.
Press CONFIRM.
Manual operation menu screen is displayed.
To activate manual operation press the function button under the
desired component.
NOTE: Manual operation and heat source setting cannot be selected if the system is running. A screen will be
displayed asking the installer to stop the system before these modes can be activated. The system automatically
stops 2 hours after last operation.
Auxiliary Settings
This function is used to set the parameters for any auxiliary parts used in the system.
From the service menu use F1 and F2 buttons to highlight Auxiliary settings then press CONFIRM.
Electric Heater (Heating)
1. From the Auxiliary settings menu highlight Electric heater (heating).
2. Press CONFIRM.
3. The Electric heater (heating) 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 will assist in space heating
(5 -180mins).
Economy Settings for Pump
It is necessary for there to be some degree of pump overrun on all FTC4
systems once the demand has been met so that various sensor readings can
be accurately stored during this period. Under the sub menu 'economy setting
for pump' this function should always be turned on via the tick box, simply
turning this option off will result in the pump having no economy setting and
running continuously. The delay should always be reduced to the minimum
(3 minutes). Meaning that during the 3 minutes after the heating or hot water
demands have been satisfied the pump will run, making it essential that the
automatic bypass valve is installed and commissioned as previously described
in this manual.
FTC4 Installation Manual
62
(continued)

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