Service manual

52
2-10 Dip switch functions
Each figure shows the initial factory setting.
1) On remote controller board
(1) SW17(Address selector)
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
OFF:Without back-up
ON:With back-up
(2) SW18 (Function selector)
SW18-1) Switch for timer
OFF:Single day ON:Timer every 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.
J1-4) Switch for drain pump
Provided :The drain pump works in only COOL operation.
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 :1:(For all current models)
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 :4-degree adjustment
Not Provided :No adjustment
J1-7) Switch for fan speed during thermostat OFF in HEAT operation
Provided :EXTRA LOW
Not Provided :LOW
J1-8) Switch for fan speed during thermostat OFF in HEAT operation
Provided :EXTRA LOW or LOW(set with J1-7)
Not Provided :LOW or HIGH(set with remote controller)
J1-9) Switch for detecting abnormalities in the outdoor unit abnormality detection
Provided :When an abnormality occurs,it is detected.
Not Provided :Even if an abnormality occurs,it can not be detected.
J1-10) Switch for auto restart function
Provided :This function does not work
Not Provided :This function works.
2) On indoor controller board
PCH-2,2.5,3,4,5,6,GK(S)A-E
(1) J1 (Function selector Jumper resistors)
145678910
87654321
OFF
ON
4321
OFF
ON