Mitsubishi FDC121KXZEN1-W - Page 173

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(d) Fan control during cooling thermostat OFF
(i) Following fan controls during the cooling thermostat OFF can be selected with the indoor function setting of the wired
remote control.
① Low fan speed
②
Set fan speed (Factory default)
③
Intermittence
④
Fan OFF
(ii) When the “Low fan speed” is selected, the following taps are used for the indoor fans.
pat oLU : rotom CD roF
(iii) When the “Set fan speed” is selected, it is operated with the set fan speed also in the thermostat OFF condition.
(iv) If the “Intermittence” is selected, following controls are performed:
1) If the thermostat is turned OFF during the cooling operation, the indoor fan stops.
2) Indoor fan OFF is fixed for 5 minutes. After the 5 minutes, the indoor fan is operated at ULo for 2 minutes.
3) After operating at ULo for 2 minutes, the indoor fan moves to the state of 1) above.
4) If the thermostat is turned ON, the fan starts operation at set fan speed.
5) When the cooling thermostat is turned OFF, the remote control displays the temperature detected at the fan stop
and revises the temperature later when the indoor fan changes from ULo to stop.
By using operation data display function at wireless remote control, the temperature as displayad and the value is
updated including the fan stops.
6) When the cooling thermostat is turned ON or the operation is changed to another mode (including stop), this
control is stopped immediately, and the operating condition is restored.
(v) When the “Fan OFF” is selected, the fan on the indoor unit of which the thermostat has been turned OFF, is turned OFF.
The same occurs also when the remote control sensor is effective.
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(11) Drain pump control (Except FDK)
(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 (i) above after turning the
drain pump ON, and then stops.
The 5 minutes delay continues also in the event of anomalous stop.
(c)
The drain pump is operated with the 5 minutes 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 control.
(i)
(ii)
(iii)
(iv)
Note (1) Values in
〔 〕
are for the RC-EX3A model.
ާStandardin cooling & dryި: Drain pump is run during cooling and dry.
ާOperate in standard & heatingި: Drain pump is run during cooling, dry and heating.
ާOperate in heating & fanި: Drain pump is run during cooling, dry, heating and fan.
ާ
Operate in standard & fan
ި
: Drain pump is run during cooling, dry and fan.
(12) Drain pump abnomalities detection (Except FDK)
(a)
Drain detection switch is turned ON or OFF with the oat switch
(FS) and the timer.
[
＊
1] Drain detection switch is turned “ON” when the oat switch “Open” is detected for 3 seconds continuously in the
drain detectable space.
[
＊
2] Drain detection switch is turned “OFF” when the oat switch “Close” is detected for 10 seconds continuously.
(i) It detects always from 30 seconds after turning the power ON.
1) There is no detection of anomalous draining for 10 seconds after turning the drain pump OFF.
2) Turning the drain detection switch “ON” causes to turn ON the drain pump forcibly.
3) Turning the drain detection switch “OFF” releases the forced drain pump ON condition.
Normal state
[*1] [*2]
Normal state
Drain detection switch ON
Stop
(1)
Indoor unit operation mode
Control A
Control B
Compressor ON
Compressor OFF
Cooling Dry HeatingFan
(2)
Note (1) Including the stop from the cooling, dehumidifying, fan
and heating, and the anomalous stop
(2) Including the “Fan” operation according to the
mismatch of operation modes
(i) Control A
1) If the oat switch detects any anomalous draining condition, the unit stops with the anomalous stop (displays E9) and
the drain pump starts. After detecting the anomalous condition, the drain motor continues to be ON.
2) It keeps operating while the oat switch is detecting the anomalous condition.
(ii) Control B
If the oat switch detects any anomalous drain condition, the drain motor is turned ON for 5 minutes, and at 10 seconds
after the drain motor OFF it checks the oat switch. If it is normal, the unit is stopped under the normal mode or, if there
is any anomalous condition, E9 is displayed and the drain motor is turned ON. (The ON condition is maintained during
the drain detection.)
(b) Indoor unit performs the control A or B depending on each operating condition.
(13) Operation check/drain pump test run operation mode
(a)
If
the power is turned on by the DIP switch (SW7-1) on the indoor unit control PCB when electric power source is supplied,
it enters the mode of operation check/drain pump test run. It is ineffective (prohibited) to change the switch after turning
power on.
(b)
When the communication with the remote control has been established within 60 seconds after turning power on by the DIP
switch (SW7-1) ON, it enters the operation check mode. Unless the remote control communication is established, it enters
the drain pump test run mode.
Note (1) To select the drain pump test run mode, disconnect the remote control connector (CNB) on the indoor control PCB to shut down the remote control
communication.