Mitsubishi Electric Mr.SLIM PKH-1.6FKA Technical & Service Manual page 49

2-10 Dip switch and jumper connector functions
Each figure shows the initial factory setting.
[1] On remote controller board
(1) SW17(Address selector)
8 7 6 5 4 3 2 1
OFF
ON
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)
4 3 2 1
OFF
ON
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: 100 Hr
ON: 2500 Hr
SW18-4) Not yet used
[2] On indoor controller board
For PKH-1.6FKA-E / PKH-2FKA-E
(1) SW1 (Mode selector)
1 2 3 4 5 6 7 8
ON
OFF
SW1-1) Switch that changes between FAN mode and AUTO mode.
OFF: Fan mode for models with heat pump.
ON: AUTO mode for models with heat pump.
SW1-2) Not for use
SW1-3) Switch for auto vanes.
OFF: Unit without auto vanes.
ON: Unit with auto vanes.
SW1-4) Not for use
SW1-5) Switch to change the temperature to start coil frost prevention.
OFF: -3°C(For previous special models)
ON: 1°C(For all current models)
SW1-6) 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.
OFF: 4-degree adjustment
ON: No adjustment
SW1-7) Switch for fan speed during thermostat OFF in HEAT operation.
OFF: EXTRA LOW
ON: LOW
SW1-8) Switch for fan speed during thermostat OFF in HEAT operation.
OFF: EXTRA LOW or LOW (set with SW1-6)
ON: LOW or HIGH (set with remote controller)
SW1-9) Switch for detecting abnormalities in the outdoor unit abnormality detection.
OFF: When an abnormality occurs, it is detected.
ON: Even if an abnormality occurs, it can not be detected.
SW1-10) Switch for auto restart function.
OFF: This function does not work.
ON: This function works.
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