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7. Current release value shift control
1) This control purposes to prevent troubles of the
electronic parts such as the compressor driving
elements and the compressor during cooling
operation.
2) The current release control value (I1) is selected
from the following table according to TO sensor
value.
8. Over-current protective control
1) When the over-current protective circuit detected an abnormal current, stop the compressor.
2) The compressor restarts after 2 minutes 30 seconds setting [1] as a trouble count.
3) When the trouble count [8] was found, determine a trouble and restart operation is not performed.
4) For the check code display contents, confirm on the check code list.
9. High-pressure release control
1) The operation frequency is controlled to restrain abnormal rising of high pressure by TL sensor in cooling
operation and TC sensor in heating operation.
2) When TL sensor in cooling operation or TC sensor in heating operation detects abnormal temperature of
the stop zone, stop the compressor and the trouble count becomes +1.
3) When the compressor stopped with 2), the operation restarts from the point of the normal operation zone
(e point or lower) where it returned after 2 minutes 30 seconds.
4) The trouble count when the compressor stopped with 2) is cleared after the operation continued for 10
minutes.
If the trouble count becomes [10] without being cleared, the trouble is determined and reactivation is not
performed.
5) For the check code display contents, confirm on the check code list.
HEAT TC / COOL TL
[˚C]
a
b
c
d
Frequency slow up (Up to command)
e
Abnormal stop
Frequency normal down
Frequency slow down
Frequency hold
As command is
Current release control value (I1)
Temperature range
47˚C≤ TO
39˚C≤ To < 47˚C
TO < 39˚C
TO < –5˚C
TO trouble
a
b
c
d
e
– 43 –
GP110
GP140
GP160
7.5
7.5
7.5
7.5
8.7
9.6
9.6
9.6
9.6
7.5
8.7
9.6
7.5
7.5
7.5
HEAT
COOL
TC
TL
62°C
63°C
57°C
62°C
55°C
60°C
53°C
58°C
49°C
54°C
[A]
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