Item Description of operation, numerical data, and other information Remarks
12. Inverter
P.C.board
control for
compressor
(1) Current, power release value control
The purpose of this control is to prevent high pressure rise and overheating of electric
parts by reducing the compressor speed when the maximum current and maximum
power value set for each model are exceeded.
The maximum current and power value for each horsepower
of each model are as follows
*2 For comp models, it is the maximum value per comp.
Even when the TH sensor temperature ≥ 81°C, the compressor speed is reduced, and
when the TH sensor temperature < 73°C continues, the rotation speed increase is
permitted.
(2) Heat sink overheat abnormality

Stop the compressor operation when the TH sensor temperature exceeds 93°C.

When the above is stopped, the abnormal count is set to 1, and it restarts after 2

minutes and 30 seconds.

If you continue the operation for 10 minutes or more after restarting, the trouble count

will be cleared


A trouble is confirmed with a trouble count of "4".
HP
24*
22*
20
18
16
14
12
10
8
Maximum current
27.00A
25.50A
36.00A
34.00A
30.50A
27.50A
24.50A
20.50A
15.40A
Maximum power
17.21kW
16.25kW
22.94kW
21.67kW
19.44kW
17.52kW
15.61kW
13.06kW
9.81kW
(3)
High pressure SW control


Inverter compressor stops driving the compressor when the high pressure SW is

operating.


When the above is stopped, the abnormal count is set to 1, and it restarts after 2

minutes and 30 seconds.

If you continue the operation for 10 minutes or more after restarting, the trouble count

will be cleared.


The trouble count becomes "4" and the trouble is confirmed.

The above display is "P04".
14A 27.00A
17.21kW
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