Heat Controller A-MMH18FA-1, B-MMH12FA-1, B-MMC12FA-1 manual Way, 3-way Valve, Way Valve Liguid Side

2-way, 3-way Valve

2-way, 3-way Valve

2-way Valve (Liguid Side) 3-way Valve (Gas Side)

		Valve cap
	Hexagonal wrench		Open position
	(4mm)
Flare nut		Flare nut	Closed position
	Open position
				Pin
	Closed position
To		To
piping		piping	Service	Service
connection		connection
			port cap	port
To outdoor unit		To outdoor unit

Control Mechanism			Shaft position	Shaft position	Service port
	Factory Setting		Closed	Closed	Closed
			(with valve cap)	(with valve cap)	(with cap)
		Air purging	Open	Closed	Open
1.		(Installation)	(counter-clockwise)	(clockwise)	(push-pin or with
					vacuum pump)
		Operation	Open	Open	Closed
			(with valve cap)	(with valve cap)	(with cap)
2.		Pumping down	Closed	Open	Open
		(Transfering)	(clockwise)	(counter-clockwise)	(connected
					manifold gauge)
		Evacuation	Open	Open	Open
3.		(Servicing)			(with charging
					cylinder)
		Gas charging	Open	Open	Open
4.		(Servicing)			(with charging
					cylinder)
		Pressure check	Open	Open	Open
5.		(Servicing)			(with charging
					cylinder)
6.		Gas releasing	Open	Open	Open
		(Servicing)			(with charging
					cylinder)

Wall Mounted Multi-Zone Split System Air Conditioner - 76 -