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D. Micro-switch SW5 is for setting the master or slave unit when the unit is in twin connection.
Range: Master no slave (Normal 1 drive 1 connection), Master (2 positions without difference), Slave
E.Micro-switch SW6 is for selection of temperature compensation in heating mode. This helps to
reduce the real temperature difference between ceiling and floor so that the unit could run properly.
If the height of installation is lower, smaller value could be chosen.
Range: 6
o
C, 4
o
C, 2
o
C, E function (reserved for special customizing)
F.Micro-switch S1 and dial-switch S2 are for address setting when you want to control this unit by a
central controller.
Range: 00-63
G. Dial-switch ENC1: The indoor PCB is universal designed for whole series units from 18K to 55K.
This ENC1 setting will tell the main program what size the unit is.
NOTE: Usually there is glue on it because the switch position cannot be changed at random unless
you want to use this PCB as a spare part to use in another cassette unit. Then you have to select the
right position to match the size of the unit.
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