Toshiba MMY-MUP0961HT6P-UL Service Manual page 60

Item Description of operation, numerical data, and other information
(1) Current, power release value control
12. Inverter
P.C.board
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
control for
compressor power value set for each model are exceeded.
The maximum current and power value for each capacity of
each model are as follows
460V
・Standard
ton Maximum current Maximum power
16
14
12
10
8
6
・High heat
ton Maximum current Maximum power
10
8
6
*2 For comp models, it is the maximum value per comp.
Even when the TH sensor temperature ≥ 176.0°F(80°C), the compressor speed is
reduced, and when the TH sensor temperature < 163.4°F(73°C) continues, the
rotation speed increase is permitted.
(2) Heat sink overheat abnormality
Stop the compressor operation when the TH sensor temperature exceeds 199.4°F(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".
(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".
30.28 21.69
26.07 18.67
23.38 16.75
22.95 16.44
16.61 11.90
16.53 11.84
24.13 17.29
23.74 17.00
17.60 12.61
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Remarks