4-13
4 4
4-12-7. Compressor Overheating Prevention Control
Instructed frequency for compressor operation will be regulated by compressor temperature. The changes of
frequency are as below.
If compressor temperature exceeds 103°C, compressor will be stopped.
Compressor = OFF
Compressor Frequency
Reduce
Compressor Frequency
Limited
Free
103°C
99°C
96°C
Comp. temperature
88°C
87°C
86°C
4-12-8. Deice Operation
When outdoor pipe temperature and outdoor air tempertature is low, deice operation start where indoor fan motor
and outdoor fan motor stop.
4-12-6. Cooling Freeze Prevention Control
The following control is performed during cooling operations (including dry mode operation), in accordance
with whichever of the indoor heat exchanger temperatures (E1 or E2) is lower. (See the chart below.)
(a) Frequency will not be decreased less than 5.5 minutes after thermostat ON.
(b) The threshold value is increased in accordance with the indoor load (differences of temperature).
min(E1, E2)
11°C
≥
<
9°C
10°C
≥
<
7°C
9°C
≥
<
5°C
6°C
≥
<
0°C
Free
Frequency reduce
Frequency limited
Compressor stop in 360 seconds
Frequency maintain
SM830283-00_欧州向け R32シングル36-71形TD&SM.indb 13 2020/01/30 13:58:47
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