Instructions / Assembly

Installation Instructions
6
1. Piping Requirement
Refrigerant Piping
Model
Outer Diameter of Pipe [ in. (mm)]
Gas
Liquid
24K
5/8 (15.88)
3/8 (9.52)
36K
3/4 (19.05)
3/8 (9.52)
48K/60K
7/8 (22.22)
3/8 (9.52)
Thickness
[in. (mm)]
Diameter
[in. (mm)]
ø 1/4 (6.35)
ø 3/8 (9.52)
ø 3/4 (19.05)
ø 7/8 (22.22)
ø 1/2 (12.70)
ø 5/8 (15.88)
1/32 (0.8)
1/32 (1.0)
1/32 (0.8)
1/32 (0.8)
1/32 (1.0)
1/32 (1.0)
(1) Prepare locally-supplied copper pipes.
(2) Use clean copper pipes. Ensure that there is no dust or
moisture inside of the pipes. Blow the inside of the pipes
with nitrogen or dry air to remove any dust or foreign materials before connecting pipes.
(3) Piping thickness and material of the pipe are shown as below.
Refrigerant - Additional Charge
The unit has been pre-loaded with refrigerant, but if exceeding 25 ft. (7.6m) of line-set, additional refrigerant (R410A) is required.
24K/36K: Additional refrigerant charge= (L-25) ft×0.38 oz/ft
48K/60K: Additional refrigerant charge= (L-25) ft×0.60 oz/ft
2. Piping material
The shorter the refrigerant piping is, the better the performance will be. Thus the connecting pipe should be as short
as possible.
Pipe length L
Height difference H
Indoor unit
Outdoor unit
Model
Max. Pipe
length (L)
Max. Height
difference
(H)
Add.
Refrigerant
[exceed
25ft
7.6m]
24K
164ft. (50m)
98ft. (30m)
0.38(oz/ft)
[35(g/m)]
36K
246ft. (75m) 98ft. (30m)
0.38(oz/ft)
[35(g/m)]
48K/60K 246ft. (75m) 98ft. (30m)
0.60(oz/ft)
[56(g/m)]