5-minute period. / However, if the outdoor unit fan is stopped,
the start of defrosting will be delayed by 5 minutes. / The
defrosting cycle is 50 minutes from the start of heating mode
operation.
B. Completion / Defrosting mode operation stops 12 minutes after
it starts, or if the temperature detected by the outdoor / unit
heat exchanger outlet sensor is 25~C or higher. / After
defrosting is complete, hot starting commences.
C. Forced defrosting / If P8 on the outdoor unit circuit board is
shorted while the compressor is ‘ON’ during heating mode
operation / and the temperature detected by the outdoor unit
heat exchanger outlet sensor is 25~C or lower, defrosting / is
carried out regardless of the current starting conditions.
2. Operation
A. During defrosting, the outdoor unit turns on the compressor
and turns off the outdoor unit fan and the rever-
sing valve.
B. The indoor unit fan operates at LOW for 30 seconds after
defrosting starts. After this, the indoor unit fan turns off until
defrosting is complete. / (During defrosting, the louvre of the
indoor unit stays at the horizontal.)
26.8. Indoor thermostat characteristic
1. Thermostat characteristic during cooling and heating modes
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