Operating The Unit - Mitsubishi Electric e Series Service Handbook

[ VIII Test Run Mode ]

[3] Operating the Unit

1. Initial Operation
(1) Make sure the Run/Stop switch that controls the unit on the local control panel is switched off.
(2) Switch on the main power.
(3) Leave the main power switched on for at least 12 hours before turning on the Run/Stop switch that controls the
unit on the on-site control panel to warm up the compressor.
(4) Switch on the Run/Stop switch that cont rols the unit on the on-site control panel.
2. Daily Operation
To start an operation
Switch on the Run/Stop switch that controls the unit on the local control panel, or press the ON/OFF button on the
remote controller. (*1)
Note
The unit described in this manual features a circuit that protects the compressor from short-cycling. Once the
compressor stops, it will not start up again for up to 12 minutes. If the unit does not start when the ON/OFF switch
is turned on, leave the switch turned on for 12 minutes. The unit will automatically start up within 12 minutes.
To stop an operation
Switch off the Run/Stop switch that controls the unit on the on-site control panel, or press the ON/OFF button on
the remote controller. (*1)
*1 Refer to [2] Test Run Method (page 103) for how to use the remote controller.
• Power turned on throughout the operating season, in which the unit is stopped for three days or
shorter (e.g., during the night and on weekends).
• Unless in areas where the outside temperature drops to freezing, switch off the main power when the unit will not
be operated for four days or longer. (Switch off the water circulating pump if the pump is connected to a separate
circuit.)
• When resuming operation after the main power has been turned off for a full day or longer, follow the steps under
"Initial Operation" above.
• If the main power was turned off for six days or longer, make sure that the clock on the unit is correct.
3. Operating the unit from the selector switch on the unit.
(1) To start the unit
Switch the Selector switch to "Local" and press "ON".
(2) To stop the unit
With the Selector switch on "Local", press "OFF".
[ON] Unit operation
[OFF] Unit stop
ON Heating
OFF Cooling
[Cooling] Cooling operation
[Heating] Heating operation
HWE20010
[Remote] Controller operation
[Local] Local operation
Remote Forced PumpOn
Local Normal PumpOff
[Forced] When the unit stops, fan operates.
[Normal] When the unit stops, fan does not operate.
Not used
Selector switch
(Inside the unit)
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