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Installation Manual
Due to our policy of continuous product innovation, some specifications may change without notification.
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Cassette Indoor Units Nomenclature
ARN
U 07 3 M2 A
Generation
4 = Fourth
Electrical Ratings
3 = 208–230V/60Hz/1Phase
Nominal Capacity
(Nominal cooling capacity in Btu/h)
Type
U = Inverter Heat Pump/Heat Recovery
Family
ARN = Multi V Indoor Unit (Refrigerant R410A)
4
Feature
G = Low-Static
07 = 7,500
09 = 9,600
12 = 12,300
15 = 15,400
18 = 19,100
24 = 24,200
28 = 28,000
36 = 36,200
42 = 42,000
48 = 48,000
54 = 54,000
76 = 76,000
96 = 96,000
UNIT NOMENCLATURE
Chassis/Model Type
M2 = Mid or High-Static
Ducted
M3 = Mid or High-Static
Ducted
B8 = High-Static Ducted
MA = Convertible Mid Static
Ducted
M1 = Mid Static Ducted
L1 = Low-Static Ducted
L2 = Low-Static Ducted
L3 = Low-Static Ducted
NJ = Vertical Air Handling Unit
NK = Vertical Air Handling Unit
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