Settings Using The Main Remote Controller; External Input Settings; Demand Control (In4); Outdoor Thermostat (In5) - Mitsubishi Electric EHST17D-VM2D Service Manual

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 only
electric heater 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. *1
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 return temperature
THW1 Water flow temperature
THW2 Water return temperature
THW5A DHW tank upper water temperature
THW5B DHW tank lower water temperature
OCH714A
Thermistor Description
TH7 Ambient (outdoor) temperature
THW6 Zone1 flow water temperature
THW7 Zone1 return water temperature
THW8 Zone2 flow water temperature
THW9 Zone2 return water temperature
THW10 Mixing tank water temperature
THWB1 Boiler flow water temperature
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Energy monitor settings menu screen
External input settings menu screen
Demand control screen
Outdoor thermostat setting screen