Function
IPDU control
(IPDU =
Inverter P.C. board
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.
(2) Heat sink overheat abnormality.
• Stop the compressor operation when the TH sensor temperature exceeds 199°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". (error code P07).
(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.(error code P04)
Summary
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