Start/Stop Control Of Indoor Units; Miscellaneous Settings - Mitsubishi Electric R410A Service Handbook

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Start/Stop Control of Indoor Units

Each indoor unit (or group of indoor units) can be controlled individually by setting SW 1-9 and 1-10.
Operation of the indoor unit when the operation is resumed after the unit was
Function
Power ON/OFF by Indoor unit will go into operation regardless of its operation status before power
*1,*2,*3
the plug off (power failure). (In approx. 5 minutes)
Automatic restoration Indoor unit will go into operation if it was in operation when the power was
after power failure turned off (or cut off due to power failure). (In approx. 5 minutes)
Indoor unit will remain stopped regardless of its operation status before power
off (power failure).
*1. Do not cut off power to the outdoor unit. Cutting off the power supply to the outdoor unit will cut off the power supply to the
belt heater and may cause the compressor to malfunction when the unit is put back into operation.
*2. Not applicable to units with a built-in drain pump or humidifier.
*3. Models with a built-in drain pump cannot be turned on/off by the plug individually. All the units in the same refrigerant cir-
cuits will be turned on or off by the plug.
*4. Requires that the dipswitch settings for all the units in the group be made.
*5. When using the free contact on the indoor units, set SW1-9 and SW1-10 to ON. With these settings made, the power start-
stop function becomes disabled. To use the auto recovery function after power failure while these settings are made, set
SW1-5 to ON.
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Miscellaneous Settings

Cooling-only setting for the indoor unit: Cooling only model (Factory setting: SW3-1 "OFF.")
When using indoor unit as a cooling-only unit, set SW3-1 to ON.
HWE14080
stopped
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*4 *5
Setting (SW1)
9 10
OFF ON
ON OFF
OFF OFF
GB