Sanyo STB1220C1 - Manual (Page 49)

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10-2. Defrosting Operation (Heating)
■ Defrosting Flowchart
■ Defrosting Mode Timing Chart
Once the air conditioner enters defrosting mode, it will not release defrosting until the
outdoor heat exchanger coil temperature rises above 39°F. During this period, heat is
provided by electric heater instead of by the heat pump.
NOTE
Outdoor heat
exch coil
temp.
Release of defrosting Start of defrosting
39
°
F
14
°
F
ON
Solenoid coil
(4-way valve)
Compressor OFF ON ON
ON Electric heater ON
ON
Fan motor
OFF OFF
Set speed
YES
YES
Temperature of outdoor heat
exchanger coil is blow 14
°
F.
Temperature of outdoor heat
exchanger coil is higher than
39
°
F.
Defrosting begins
Compressor ON
Release of defrosting
NO
NO
● Compressor ➞ OFF
● Electric Heater ➞ ON
Heat Pump Model
Model STB0823H1