Mitsubishi Electric PCH-2GKHA Service Manual page 42

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2-10 Dip switch functions
Each figure shows the initial factory setting.
1 On remote controller board
(1) SW17(Address selector)
1 2 3 4 5 6 7 8
ON
OFF
SW17-1~6) For address setting
SW17-7) When two remote controllers are used,this switch sets the controller function.
OFF:The remote controller is set as a main controller.
ON:The remote controller is set as a sub controller.
SW17-8) Switch for system back-up (This switch is unavailable for PLH-GKHA.Keep this switch at OFF.)
OFF:Without back-up
ON:With back-up
(2) SW18 (Function selector)
ON
OFF
1 2 3 4
SW18-1) Switch for timer
OFF:Single day
SW18-2) Switch for filter sign
OFF:Filter sign absent
ON:Filter sign present
SW18-3) Switch for filter sign time setting.
OFF:100Hr ON:2500Hr
SW18-4) Not yet used.
2 On indoor controller board
PCH-2,2.5,3,4,5,6,GKH(S)A
(1) J1 (Function selector Jumper resistors)
1
4
5
6
7
8
J1-4)
Switch for drain pump
Provided
Not Provided :The drain pump works in both COOL and HEAT operation.
J1-5)
Switch to change the temperature to start coil frost prevention
Provided
Not Provided :-3°(For previous special models)
J1-6)
Switch for set temperature adjustment in HEAT mode
During HEAT operation,warm air collects near the ceiling.When the indoor unit is installed near the ceiling,the
temperature read by room temperature thermistor differs from the actual living-space temperature by about 4
degrees. Therefore,the room temperature read by room temperature thermistor must be lowered by 4 degrees.
Provided
Not Provided :No adjustment
J1-7)
Switch for fan speed during thermostat OFF in HEAT operation
Provided
Not Provided :LOW
J1-8)
Switch for fan speed during thermostat OFF in HEAT operation
Provided
Not Provided :LOW or HIGH(set with remote controller)
J1-9)
Switch for detecting abnormalities in the outdoor unit abnoamality detection
Provided
Not Provided :Even if an abnormality occurs,it can not be detected.
J1-10)
Switch for auto restart function
Provided
Not Provided :This function works.
42
ON:Timer every day
1
9
10
:The drain pump works in only COOL operation.
:1°(For all current models)
:4-degree adjustment
:EXTRA LOW
:EXTRA LOW or LOW(set with SW1-7)
:When an abnormality occurs,it is detected.
:This function does not work

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