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'11 • SCM-SM-110
(23) Anomalous power transistor (SCM100, 125 only)
When anomalous rise of the power transistor temperture is detected for minutes continuosly.
(24) Power transistor overheat protection (SCM100, 125 only)
(a) Purpose:
Prevention of malfunction, deterioration, breakage, etc. of the control
(b) Contents of restriction
Restricts the speed of compressor when the temperature of power transistor (Tho-AF) rises higher than 0°C.
Tho-AF < 80°C
80°C
<= Tho-AF < 90°C 90°C <= Tho-AF < 110°C 90°C <= Tho-AF < 110°C
Tho-AF
<= 110°C
Protection control speed (NP)
Normal
Retention
NP
－
rps
NP
－
rps
0rps
Sampling time (s)
Normal
0
0
0
−
(c) Resetting condition
When the power transistor temperature is lower than 0°C or when the compressor has stopped.
(d) Anomalous stop
It stops anomalously if it occurs times within 0 minutes or it has elapsed 0 minutes after the first establishment of the condition.
(25) Control of the flowing noise of refrigerant during cooling operation (SCM100, 125 only)
In order to suppress the flowing noise of refrigerant when operating unit of indoor unit, the compressor is operated at the
Max speed of 0 rps if the dip switch (J) on the outdoor sub-PCB is set to open.
