Function Of Dip Switch - Mitsubishi Electric PKFY-P12NHMU-E Technical & Service Manual

7-2. Function of Dip switch

PKFY-P12, 15, 18NHMU-E
Switch Pole
Function
Thermistor<Room temperature>
1
position
2
Filter clogging detection
3
Filter cleaning sign
4
Fresh air intake
SW1
5
Switching remote controller display Thermo ON signal indication Fan output indication
Mode
6
Humidifier control
selection
7
Air flow set in case of heat
thermo OFF
8
9
Auto restart function
10
Power ON/OFF by breaker Effective
SW2
Capacity
1~6
code
switch
1
Heat pump/Cool only
2
Not used
3
Not used
SW3
4
Vane horizontal angle
Function
Changing the opening of linear
5
selection
expansion valve during thermo OFF
6
Heating 4 degree up
7
Target superheat setting 2
8
Target subcool
In case of replacing the indoor controller board, make sure to set the
switch to the initial setting, which is shown below.
SW4
1~4
Model
selection
Operation by switch
ON
Built-in remote controller
Provide
2,500 hr
Not effective
2
Fan operation at Heating mode
Low 1
Setting air flow 1
Effective
Models SW2
ON
P12
OFF
123456
ON
P15
OFF
123456
ON
P18
OFF
123456
Cooling only
—
—
Second setting
Effective
Not effective
—
2 —
ON
OFF
1 2 3 4
17
OFF
Indoor unit
Not provide
100 hr
Not effective
Thermo ON operation at
heating mode
Extra low 1
Depends on SW1-7
Not effective
Not effective
Heat pump
—
—
1 First setting
Not effective
Effective
—
—
Effective
Remarks
timing
Address board
<Initial setting>
ON
OFF
1 2 3 4 5 6 7 8 9 10
NOTE:
SW1-7 SW1-8 Fan speed
Under
OFF OFF Extra low
suspension
ON OFF Low
OFF ON Setting air flow
ON ON Stop
2 It is impossible to intake
the fresh air.
Indoor controller board
Before
power
supply
ON
Indoor controller board
<Initial setting>
ON
Under
OFF
1 2 3 4 5 6 7 8
suspension
1 Second setting is same as
first setting.
2 Please do not use SW3-7,8
as trouble might be caused
by the usage condition.
Indoor controller board
Before
power
supply
ON