Service Manual
Installation
Piping Length and Elevation
Indoor Unit Capacity Pipe Size Rated Max Additional
(Btu/h)
Gas Liquid
Length Length Refrigerant
• The maximun allowable level and piping length
18k
24k
Refrigerant Charge
Extra refrigerant = (Extended length - Rated length) x Additional refrigerant
7.5m
A
B
7.5m
Installation of the outdoor unit
on an upper position
Installation of the outdoor unit
on a lower position
A
B
7.5m
7.5m
Model
[Outdoor unit]
T2UH182FAA
7.5m 15m 15m - 30m (A+B)
T2UH242FAA
Standard length
A,B
Max. piping length of each indoor unit
ABC
Max. total piping length
1/2"(12.7mm) 1/4"(6.35mm) 7.5 15
3/8"(9.52mm) 1/4"(6.35mm) 7.5 15
20g/m
30g/m
41
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