8-6. Overload Prevention (Heating)
●
Overload prevention prevents overheating of the indoor heat exchange coil. This function works either when
the temperature of indoor heat exchange coil goes up or compressor current rises to a certain level.
■
Temperature of indoor heat exchange coil sensor
●
When the temperature of the indoor heat exchange coil rises above A2°C, and if the indoor fan is L (low speed),
then the fan speed changes from L (low speed) to M (medium speed).
●
When the temperature of the indoor heat exchange coil rises above A1°C, the outdoor fan stops.
The operation temperature shown
as A1, A2, A3 and A4 in the chart
left differ by models.
■
Compressor current detection
●
When the compressor current rises above 6.5(A), and if the indoor fan is L (low speed), then the fan speed
changes from L (low speed) to M (medium speed). At the same time, the outdoor fan stops its operation.
●
When the compressor current drops to 4.4(A), the outdoor fan resumes its operation.
●
When the compressor current drops below 4.4(A), indoor fan returns to operate in set speed.
The operation temperature shown
as B1, B2 and B3 in the chart left
differ by models. B2 and B3 are the
same value in these models.
NOTE
ON
ON
OFF
ON
H or M or L
H or M or L
H
➞
H, M
➞
M, L
➞
M
Compressor
current (A)
Outdoor fan
Indoor fan
Compressor
About
B1 (A)
About
B2 (A)
B3 (A)
NOTE
ON
ON
OFF
ON
H or M or L
H or M or L
H
➞
H, M
➞
M, L
➞
M
A1
A2
A3
A4
Indoor heat
exch. coil
temp.
°
C
Outdoor fan
Indoor fan
Compressor
31
SAP-K92AH
SAP-K122AH
A1
58
54
A2
55
52
A3
49
45
A4
46
42
SAP-K92AH
SAP-K122AH
B1
6.5
9.5
B2
4.4
6.5
B3
4.4
6.5
