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2.4 OPERATION MODES AND CONTROL
The relationship between the operation mode and setting temperature is as follows.
Operation mode
Setting temperature
Control sensor
Operation description
Frozen mode
–10.1˚C to –30.0˚C
Return air
Compressor ON/OFF control
(–50.2˚F to –86.0˚F)
temperature sensor
Partial frozen
–3.1˚C to –10.0˚C
Return air
Capacity control operation
mode
(–37.6˚F to –50.0˚F)
temperature sensor
with suction modulating valve
and hot-gas bypass control
+30.0˚C to –3.0˚C
Supply air
Capacity control operation
Chilled mode
(+86.0˚F to –37.4˚F)
temperature sensor
with suction modulating valve
and hot-gas bypass control
Defrosting mode
–
–
Hot-gas defrosting with
refrigerant metering control
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