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Item
6. Release protective
control by tempera-
ture of indoor heat
exchanger
Operation flow and applicable data, etc.
<In cooling/dry operation>
(Prevent-freezing control for indoor heat exchanger)
In cooling/dry operation, the sensor of indoor heat
exchanger detects evaporation temperature and
controls the compressor speed so that temperature of
the heat exchanger does not exceed the specified
value.
Description
FILE NO. SVM-13071
(7 C)
(6 C)
(5 C)
R
Q
P
Usual cooling capacity control
Reduction of compressor speed
Indoor heat e
xchanger temper
ature
When the value is
in Q zone, the
compressor speed
is kept.
45 F
43 F
41 F
1) When temperature of the indoor
heat exchanger drops below 41°F
(5°C), the compressor speed is
reduced. (P zone)
2) When temperature of the indoor
heat exchanger rises in the
range from 43°F (6°C) to under
45°F (7°C), the compressor
speed is kept. (Q zone)
3) When temperature of the indoor
heat exchanger rises to 45°F (7°C)
or higher, the capacity control
operation returns to the usual
control in cooling operation.
(R zone)
