Mitsubishi Electric CITY MULTI PLFY Series Technical & Service Manual page 16

Control Mode
2-1. Hot adjust mode
The fan controller becomes the hot adjuster mode for the following conditions.
When starting the HEAT operation
When the temperature adjustment function changes from OFF to ON.
When release the HEAT defrosting operation
A: Hot adjust mode starts.
B: 5 minutes have passed since the condition A or the indoor liquid pipe temperature reached 86°F or more.
C: 5 minutes have passed since the condition A or the indoor liquid pipe temperature reached 95°F or more.
D: 2minutes have passed since the condition C.
(Terminating the hot adjust mode)
2-2. Residual heat exclusion mode
When the condition changes the auxiliary heater ON to OFF (temperature adjustment
function, or operation stop, etc.), the indoor fan operates in [Low] mode for 1 minute.
2-3. Thermo-OFF mode
When the temperature adjustment function changes to OFF, the indoor fan operates in
[Extra low].
2-4. Heat defrosting mode
The indoor fan stops.
3. Drain pump 3-1. Drain pump control
ON for 3 minutes after the operation mode is switched from COOL or DRYING to another
operation mode (FAN).
control judges the sensor is in the water.
3-2. Float switch control
• Float switch control judges whether the sensor is in the air or in the water by turning the
(1) Initial setting: OFF → HEAT···[last setting]
4. Vane control
(Up/down vane
When the last setting is [Swing] ··· [Downward D]
change)
When changing the mode from exception of HEAT to HEAT operation
···[Downward D]
(2) Vane position:
Horizontal →Downward A →Downward B →Downward C→Downward D→Swing→Auto
(3) Restriction of vane position
(The control by the remote controller is temporally invalidated and control by the unit.)
• Thermo-OFF
• Hot adjust [Extra low] mode
• Heat defrost mode
TCH123
Control Details
1
Hot adjust mode*
[Low]* 3
3
[Extra Low]*
[OFF]* 2
A B C
Set fan speed by the remote controller
D
ON
OFF
16
Remarks
1
* "Heat Standby" will be
displayed during the
hot adjust mode.
2
* The step change
of A to B will not be
thermo-ON mode
since the HEAT
operation has started.
3
* The fan speed varies
according to the setting
of DIP SW1-7 and 1-8
as shown in the table
below.
DIP SW 1-8
ON OFF
B to C [Extra Low] B to C [Low]
C to D [Low] C to D [Low]
B to C [Extra Low]
C to D [Low]
Note: Initial setting
• This control is same
for the model without
auxiliary heater.
• Operates as it would in
COOL operation.