Current Limit Control - Toshiba RAS-13UKHP-E Service Manual

7-7. Current Limit Control

The microprocessor 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)
Control is performed as shown below by detecting
the compressor operating current with a current
sensor (C.T).
RAS-13UKHP-E / RAS-10UKHP-E / RAS-07UKHP-E
Input current
13.5A/ 19.2A I
4
12.5A/ 17.8A I
3
(2) Current limit control (Heating)
Control is performed as shown in Fig. 7-7-2
RAS-13UKHP-E / RAS-10UKHP-E / RAS-07UKHP-E
Input current
13.5A/ 19.2A I
4
12.5A/ 17.8A I
3
10A/ 15.6A I
2
9A/ 15.0A I
1
Remark :
This function is available only for heat pump model
(Cooling models have no a current sensor (C.T.)).
Compressor
More than I
More than I
Fig. 7-7-1
Compressor
More than I
More than I
ON
Fig. 7-7-2
– 28 –
FILE NO. SVM-02001
Outdoor fan
continues for 3 seconds
4
OFF
continues for 5 seconds
3
OFF
ON
Outdoor fan
continues for 3 seconds
4
OFF
continues for 5 seconds
3
OFF
OFF
ON