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FILE NO. SVM-04022
7-7. Current Limit Control (NKHD Series 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).
RAS-13NKHD Series / RAS-10NKHD Series, RAS-07NKHD Series
Fig. 7-7-1
(2) Current limit control (Heating operation)
Control is performed as shown in Fig. 7-7-2
RAS-13NKHD Series / RAS-10NKHD Series, RAS-07NKHD Series
Fig. 7-7-2
Remark :
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