8.2.3.6. Deice Control
A. Deice operation (Normal Deice Operation)
1. Detection methods
Outdoor heat exchanger temperature sensor, timer.
2. Deice operation time chart
Notes
a. During deice operation, the relationship between outdoor pipe temperature and time T1 is such operation will
proceed to next stage.
b. The deice will be performed only after 1 hour from when the operation has started.
c. When Comp. OFF by the sequence No. 1, 6, 7 compressor can restart back without 3 minutes waits (immediate
restart).
Outdoor heat exchanger temperature
a 15°C
b 18°C
c 25°C
40
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