Panasonic U-8MF2E8 Service Manual page 42

9. Defrost Control
1
* Reverse cycle defrost process
This reverse cycle defrost process is performed after outdoor units, indoor units and solenoid valve kits are
changed to the cooling cycle.
Control time
Outdoor units
1
All Indoor Units
Minimum 1 minute – Maximum 15 minutes
(Until all outdoor units' heat exchanger temperature
Outdoor unit operates at maximum horsepower.
Valves at all indoor units operate at a fixed pulse according to the
Electronic control valve
indoor unit capacity.
Solenoid valve kit Valve kits at all indoor units operate in cooling mode (ON status).
Fan
Stop and cooling operation of indoor units will be followed by the
indoor unit control system.
Fan and heating operation of indoor units are changed to stop.
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3WAY SYSTEM
Control Functions
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15°C)