Mitsubishi Electric EHSD-MED Service Manual page 32

2. Settings using the main remote controller
In this menu, all parameters required to record the consumed electrical energy and the
delivered heat energy which is displayed on the main remote controller can be set. The
parameters are an electric heater capacity, supply power of water pump and heat
meter pulse.
Follow the procedure described in General Operation for the set up operation.
For Pump 1, *** can be also set besides this setting.
In the case *** is selected, the system acknowledges "factory fitted pump" is selected.
<External input settings>
Demand control(IN4)
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)
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.
<Running information>
This function shows current temperature and other data of main component parts
of both the indoor and outdoor units.
1. From the Service menu highlight Running information.
2. Press CONFIRM.
3. Press F3 and F4 buttons to set the Ref. address. *
4. Use the function buttons to enter index code for the component to be viewed.
(See the Table 9-4-1 for component index codes.)
5. Press CONFIRM.
* 1 For multiple outdoor units control system only.
<Thermistor reading>
This function shows the current readings of thermistors located on the water and refrigerant circuit
Thermistor Description
TH1A Zone1 room temperature
TH1B Zone2 room temperature
TH2 Refrigerant liquid temperature
THW1 Flow water temperature
THW2 Return water temperature
THW5A DHW tank water temperature (upper) THW10
THW5B DHW tank water temperature (lower)
OCH712C
1
Thermistor Description
TH7 Ambient (outdoor) temperature
THW6 Zone1 flow temperature
THW7 Zone1 return temperature
THW8 Zone2 flow temperature
THW9 Zone2 return temperature
Mixing tank temperature
THWB1 Boiler flow temperature
32
Energy monitor settings menu screen
External input settings menu screen
Demand control screen
Outdoor thermostat setting screen