Heat Controller MMH36TA-1, MMC18DA-1, MMC24DA-1, MMC36TA-1, MMH24DA-1 Charging, Max total, Capacity

Charging

Charging

■Each outdoor unit is factory charged (see rating plate) for the evaporator as well as a 7.5 m (25 ft) line set for each indoor line.

Any time total line set is used either shorter or longer then the nominal, which is for Single Zone = 7.5m, Dual Zone = 15m, and Tri-Zone = 22.5 (Single Zone = 25ft, Dual Zone = 50ft, and Tri Zone = 75 ft), the line set length the refrigerant charge has to be adjusted.

■Whether the line set is made shorter or longer you must adjust the charge based on how many ft of tubing are either added or removed based on 20 g (0.22 oz) of R410A per meter(foot).

	Max total	Max length of	Min length of	Max Elevation	Max elevation	Additional
				between each	between
Capacity	length of all	each pipe	each pipe
				indoor unit and	indoor units	Refrigerant
	pipes (A+B+C)	(A/B/C)	(A/B/C)
				outdoor unit (h1)	(h2)
18K BTU/h	30 m (100 ft)	15 m (50 ft)	3 m (10 ft)	7.5 m (25 ft)	7.5 m (25 ft)	20 g/m (0.22 oz/ft)
24K BTU/h	30 m (100 ft)	15 m (50 ft)	3 m (10 ft)	7.5 m (25 ft)	7.5 m (25 ft)	20 g/m (0.22 oz/ft)
36K BTU/h	45 m (150 ft)	15 m (50 ft)	3 m (10 ft)	7.5 m (25 ft)	7.5 m (25 ft)	20 g/m (0.22 oz/ft)

Example: A 80 ft line set is used for tri - zone 5 additional ft X 0.22 ounces per foot= add 1.1 ounces of R410A

Important:

If you are ever uncertain of the unit charge, reclaim, evacuate and weigh in the correct charge using the charge amount specified on the unit's rating plate, adjusting for line sets longer or shorter than 7.5 m(25 ft) for each indoor unit.

26Wall Mounted Multi-Zone Split System Air Conditioner