Filter Sign - Mitsubishi Electric FDT125VNVF Technical Manual

(9)

Filter sign

As the operation time (Total ON time of ON/OFF switch) accumulates to 180 hours (1), "FILTER CLEANING" is displayed
on the remote controller. (This is displayed when the unit is in trouble and under the centralized control, regardless of ON/OFF)
Note (1) T ime setting for the filter sign can be made as shown below using the indoor function of wired remote controller "FILTER SIGN SET". (It is set at 1 at the
shipping from factory.)
Filter sign setting
TYPE 1
TYPE 2
TYPE 3
TYPE 4
(2) After the setting time has elapsed, the "FILTER CLEANING" is displayed and, after operating for 24 hours further (counted also during the stop), the
unit stops.
(10) Compressor inching prevention control
(a) 3-minute timer
When the compressor has been stopped by the thermostat, remote controller operation switch or anomalous condition,
its restart will be inhibited for 3 minutes. However, the 3-minute timer is invalidated at the power on the electric power
source for the unit.
(b) 3-minute forced operation timer
1) Compressor will not stop for 3 minutes after the compressor ON. However, it stops immediately when the unit is
stopped by means of the ON/OFF switch or by when the thermister turned OFF the change of operation mode.
2) If the thermostat is turned OFF during the forced operation control of heating compressor, the louver position (with
the auto swing) is returned to the level position.
Note (1) The compressor stops when it has entered the protective control.
(11) Drain pump control
(a) This control is operated when the inverter frequency is other than 0 Hz during the cooling operation and automatic
cooling and dehumidifying operations.
(b) Drain pump ON condition continues for 5 minutes even when it enters the OFF range according to 1) above after turning
the drain pump ON, and then stops. The 5-minute delay continues also in the event of anomalous stop.
(c) The drain pump is operated with the 5-minute delay operation when the compressor is changed from ON to OFF.
(d) Even in conditions other than the above (such as heating, fan, stop, cooling thermostat OFF), the drain pump control is
performed by the drain detection.
(e) Following settings can be made using the indoor function setting of the wired remote controller.
1)
: Drain pump is run during cooling and dry.
2)
: Drain pump is run during cooling, dry and heating.
3)
4)
: Drain pump is run during cooling, dry and fan.
(12) Drain motor (DM) control
( a ) Drain detection switch is turned ON or OFF with the float switch (FS) and the timer.
Normal state
[ ＊ 1] Drain detection switch is turned "ON" when the float switch "Open" is detected for 3 seconds continuously in the
drain detectable space.
[ ＊ 2] Drain detection switch is turned "OFF" when the float switch "Close" is detected for 10 seconds continuously.
It detects always from 30 seconds after turning the power ON.
1)
a) There is no detection of anomalous draining for 10 seconds after turning the drain pump OFF.
b) Turning the drain detection switch "ON" causes to turn ON the drain pump forcibly.
c) Turning the drain detection switch "OFF" releases the forced drain pump ON condition.
Setting time: 180 hrs (Factory default)
Setting time: 600 hrs
Setting time: 1,000 hrs
Setting time: 1,000 hrs (Unit stop)
: Drain pump is run during cooling, dry, heating and fan.
Drain detection switch ON
[*1]
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Function
(2)
Normal state
[*2]
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'12 • PAC-T-174