Filter Sign - Mitsubishi Electric FDT125VNVF Technical Manual

4) In case of anomaly
a) If any anomaly occurs on a unit in a group (a protective function operates), that unit stops with the anomalous
stop but any other normal units continue to run as they are.
b) Signal wiring procedure
Signal wiring between indoor and outdoor units should be made on each unit same as the normal wiring. For
the group control, lay connect with sires wiring between rooms using terminal blocks (X, Y) of interface kit.
Connect the remote controller communication wire separately from the power supply wire or wires of other
electric devices (AC220V or higher).

(11) 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
Setting 1
Setting 2
Setting 3
Setting 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.
(12) Outline of automatic operation
(a) Determination of operation mode
The unit checks the indoor air temperature and the outdoor air temperature, determines the operation mode, and then
begins in the automatic operation.
Indoor air temperature (˚C)
(b)  T he unit checks the temperature every hour after the start of operation and, if the result of check is not same as the previous
operation mode, changes the operation mode.
(c)  W hen the unit is started again within one hour after the stop of automatic operation or when the automatic operation is
selected during heating, cooling or dehumidifying operation, the unit is operated in the previous operation mode.
Function
Setting time: 180 hrs (Factory default)
Setting time: 600 hrs
Setting time: 1,000 hrs
Setting time: 1,000 hrs (Unit stop)
27.5
25.5
19.5
Heating
Outdoor air temperature (˚C)
316
-
(2)
Cooling
Dehumidifying
30
18
-
'12 • PAC-T-174