Mitsubishi Electronics PCH36GK OC277-53, Individual Control by Grouping the Remote Controllers

NOTE1 : Install the relay box where you can be serviced it easily.

NOTE2 : For control circuit wiring, use a wire of No. 14 AWG or a control cable according to the power supply of control circuit.

NOTE3 : When the power supply of the control circuit is 208/230V AC,

●Do not connect the control circuit wire to the remote controller cable directly.

●Do not place the control circuit wire and the remote controller cable into the same conduit tube.

4-2 Basic wiring

Caution : Before starting all units simultaneously by the remote ON-OFF switch, be sure to connect a sequence-start timer into the remote ON-OFF circuit. Otherwise, a rush of starting current may damage the power supply.

	Remote	No.1 unit	No.2	unit
	ON/OFF
		relay box	relay box
	switch
Power	SW1
supply
	SW2
Glow switch or pilot lamp can be		T		T
combined to easily identify the		X2		X2
on-off mode of SW1 and SW2.		T		T
	To		To
	No.1	X2	No.2	X2
	unit		unit

Next unit

				Remote controller
		Timer adapter cables
4-3 Switch function of remote ON-OFF switch
				SW2
		(Switches between remote ON-OFF and individual control)
		ON			OFF
		(Remote ON-OFF control)			(Individual control)
SW1	ON	All units start together.	w1		Each unit can be controlled by each
	(Start)	Individual control is not available.
(Switches between					remote controller.
	OFF	All units stop together.	w2
remote ON and OFF.)					Remote ON-OFF switch is not available.
	(Stop)	Individual control is not available.

w1After all units start together, if SW2 is turned OFF, each unit can be individually stopped by each remote controller. w2After all units stop together, if SW2 is turned OFF, each unit can be individually started by each remote controller.

5. INDIVIDUAL CONTROL BY GROUPING THE REMOTE CONTROLLERS

●Grouping the remote controllers allows individual control and cen- tralise monitoring of units installed in different places without a spe- cial control board.

●Remote control cables are extendible up to 550 yards When the cable length exceeds 33ft, use the double-insulated two-care cable such as Belden 9407. Also, the cable thickness must be No. 22 AWG or above.

●When gathering the power ON/OFF switches of air conditioners near the remote controllers, you should also install the power ON/OFF switch near each unit to prevent electric trouble during servicing.

Remote

controller cable (2-core)

Remote controller

OC277-53