Mitsubishi Electric Ecodan HUS210FTC4ST Installation Manual page 66

Main Controller
26
External Input Settings
From the service menu use F1 and F2 buttons to highlight External
input settings then press CONFIRM.
Demand Control (IN4)
From the External input settings menu highlight Demand control (IN4).
Press CONFIRM.
1. The Demand control screen is displayed.
2. Press F3 button to select Heat source OFF or Boiler.
3. Press CONFIRM.
Note:
The selection of "OFF", whilst a signal is being sent to IN4, forcefully
stops all the heat source operations and the selection of "Boiler" stops
operations of heat pump and electric heater and performs boiler
operation.
Outdoor Thermostat (IN5)
From the External input settings menu highlight Outdoor thermostat
(IN5). Press CONFIRM.
1. The Outdoor thermostat screen is displayed.
2. Press F3 button to select Heater or Boiler.
3. Press CONFIRM.
Note:
The selection of "Heater", whilst a signal is being sent to IN5, performs
electric-heater-only operation and the selection of "Boiler" performs
boiler operation.
FTC4 Installation Manual
66
(continued)