7-7. Current Limit Control *Heat pump model
only
The microcontroller detects the input current so as to
prevent it exceeds a specified value by means of
controlling the outdoor fan control as described in (1)
and (2).
(1) Current limit control (Cooling operation)
Control is performed as shown below by detecting
the compressor operating current with a current
sensor (C.T).
13UKH
Series /
10UKH
Series
Fig. 7-7-1
(2) Current limit control (Heating operation)
Control is performed as shown in Fig. 7-7-2
Fig. 7-7-2
Remark :
1. This function is available only for heat pump model (Cooling models have no a current sensor (C.T.)).
Input current
13.5A / 19.2A I4
12.5A / 17.8A I3
10A / 15.6A I2
9A / 15.0A I1
Compressor
Outdoor fan
More than I4 continues for 3 seconds
OFF
More than I3 continues for 5 seconds
OFF
ON
ON
OFF
Input current
13.5A / 19.2A I4
12.5A / 17.8A I3
Compressor
Outdoor fan
More than I4 continues for 3 seconds
OFF
More than I3 continues for 5 seconds
OFF
ON
FILE NO. SVM-05001
/ 07UKH Series
/ 07UKH Series
13UKH
Series /
10UKH
Series
2. For 07UKH Series and 10UKH Series, the value of currents shown on the diagram above are two times
the actual operating value. This is because the lead wire operated two times through the C.T.
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