Drain Pump Control; After-Heat Elimination - Toshiba ras-m16g3dv-e Service Manual

Item
High-temp. release control
4. Release
protective
1) The heating operation is performed as follows based on the
control by
detected temperature of Tc sensor or Tcj sensor.
temperature
of indoor
• When [M] zone is detected, the commanded frequency is
heat
decreased from the real operation frequency. After then the
exchanger
commanded frequency changes every 30 seconds while
operation is performed in [M] zone.
• In [N] zone, the commanded frequency is held.
• When [L] zone is detected, the commanded frequency is returned
to the original value by approx. 6Hz every 60 seconds.
Setup at shipment
Control temp. (°C)
A
54 (52)
NOTE:
When the operation has started or when Tc or Tcj < 30°C at start of the
operation or after operation start, temperature is controlled between
values in parentheses of A and B.
1) In cooling operation (including Dry operation), the drain pump is
5. Drain pump
control usually operated.
2) If the float switch works while drain pump drives, the compressor
stops, the drain pump continues the operation, and a check code is
output.
3) If the float switch works while drain pump stops, the compressor
stops and the drain pump operates. If the float switch keeps
operating for approx. 4 minutes, a check code is output.
4) The drain pump doesn't stop immediately to decrease the drain
water in the drain pan when the cooling operation (including Dry
operation) was stopped and drive the drain pump for five minutes.
When heating operation stops, in some cases, the indoor fan operates
6. After-heat
elimination
with [LL] for approx. 30 seconds.
Operation flow and applicable data, etc.
Tc (˚C)
Tcj
A
B
52 (50)
B
M
N
L
– 29 –
Description
Same status as that when
"thermostat-OFF" (status
that the air conditioner
enters in the room temp.
monitor mode when the
temperature reached the
setup temperature on the
remote controller)
Check code [OB]