Midea MOB31-12HFN1-QRD0GW, Service Manual

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9.5 Multi-function board instruction (This multi-function board is optional)
9.5.1. Function
The multi-function board receives the signal of 4-cored wired controller(central controller),Non-polar
wired controller and CP remote on-off signal( ON-OFF command signal) . Then converting it to the
communication signal to the main control board.
The multi-function board can output Alarm signal.
The multi-function board has two versions, one for Non-polar wired controller, the other one for 4-cored
wired controller or central controller.
9.5.2. CP remote on-off
9.5.2.1 This is the same as the LCAC, that is to say for the first time, when you active this function, you
need firstly use remote controller to turn on the unit .After setting, when the unit are running, you can
use the on-off function to turn off the units and display will show CP, when you use this function again,
the display will cancel CP and the unit will run as the last situation.
9.5.2.2 If need this function, the switches F2 should be settled as below:
Dip-switch 2 Dip-switch 1 Remote on-off control status
OFF OFF Disconnected send CP, closed cancel CP
ON OFF Closed send CP, disconnected cancel CP
9.5.3. ON-OFF control
9.5.3.1 With on-off command, you can directly use this function regardless remote controller.The
indoor will be turned on and off by this port. But indoor will still get order from remote controller when it
is turned off by this port. when the indoor is turned on by this port, the unit will run in Auto mode ,Auto
fan speed, 24
℃
setting temperature
9.5.3.2 If need this function, the switches F2 should be settled as below:
Dip-switch 2 Dip-switch 1 Remote on-off control status
OFF ON Disconnected send ON, closed send OFF
ON ON Closed send OFF
，
disconnected send ON
9.5.4. 4-cored wired controller
，
Central controller and Non-polar wired controller
Note: 4-cored wired controller
，
Central controller and Non-polar wired controller
are mutually exclusive. They can only be chosen one of three at the same time.
9.5.4.1 For network address, Dip-switch F1 and Rotary switch ENC3 are set as below:
Dip-switch 2 Dip-switch 1 Based address
OFF OFF 0
OFF ON 16
ON OFF 32
ON ON 48