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7. Current release value shift control<br />

1) This control purposes to prevent troubles of<br />

the electronic parts such as the compressor<br />

driving elements and the compressor during<br />

cooling operation.<br />

2) The current release control value (I1) is<br />

selected from the following table according to<br />

TO sensor value.<br />

Current release control value (I1)<br />

Temperature range<br />

SP110, SP140<br />

44°C ≤ To<br />

15.0<br />

39°C ≤ To < 44°C<br />

17.7<br />

To < 39°C<br />

20.0<br />

TO error<br />

15.0<br />

[A]<br />

8. Over-current protective control<br />

1) When the over-current protective circuit detected an abnormal current, stop the compressor.<br />

2) The compressor restarts after 2 minutes 30 seconds setting [1] as an error count.<br />

3) When the error count [8] was found, determine an error and restart operation is not performed.<br />

4) For the error display contents, confirm on the check code list.<br />

9. High-pressure release control<br />

1) The operation frequency is controlled to restrain abnormal rising of high pressure by TL sensor in<br />

cooling operation and TC sensor in heating operation.<br />

2) When TL sensor in cooling operation or TC sensor in heating operation detects abnormal temperature of<br />

the stop zone, stop the compressor and the error count becomes +1.<br />

3) When the compressor stopped with 2), the operation restarts from the point of the normal operation<br />

zone (e point or lower) where it returned after 2 minutes 30 seconds.<br />

4) The error count when the compressor stopped with 2) is cleared after the operation continued for<br />

10 minutes.<br />

If the error count becomes [10] without clearing, the error is determined and reactivation is not performed.<br />

5) For the error display contents, confirm on the check code list.<br />

HEAT TC / COOL TL<br />

[˚C]<br />

Abnormal stop<br />

Frequency normal down<br />

a<br />

Frequency slow down<br />

b<br />

Frequency hold<br />

c<br />

Abnormal stop<br />

d<br />

Frequency slow up (Up to command)<br />

e<br />

As command is<br />

a<br />

b<br />

c<br />

d<br />

e<br />

HEAT COOL<br />

TC<br />

TL<br />

62°C 63°C<br />

57°C 62°C<br />

55°C 60°C<br />

53°C 58°C<br />

49°C 54°C<br />

– 81 –

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