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26 Wall Mounted Multi-Zone Split System Air Conditioner
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).
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.
Charging
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)
Capacity
Max total
length of all
pipes (A+B+C)
Max length of
each pipe
(A/B/C)
Min length of
each pipe
(A/B/C)
Max Elevation
between each
indoor unit and
outdoor unit (h1)
Max elevation
between
indoor units
(h2)
Additional
Refrigerant