Full Product Manual

5.CAPACITIES AND SELECTION DATA
5.2 Piping length correction factor
The correction factor is based on the equivalent piping length in meters (EL)
and the height difference between outdoor and indoor units in meters (H).
H:
Height difference between indoor unit and outdoor unit (m).
• H>0: Position of outdoor unit is higher than that of the indoor unit (m).
• H<0: Position of outdoor unit is lower than that of the indoor unit (m).
L:
Actual one-way piping length between indoor unit
and outdoor unit (m).
EL: Equivalent one-way piping length between indoor unit and outdoor unit (m).
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)]
9.52 (3/8')
12.7 (1/2')
15.88 (5/8') 19.05 (3/4')
Gas Diameter
90° Elbow
0.15 0.2 0.25 0.35 0.40
(mm/inch)
22.22 (7/8')
Cooling ：
EL[ft(m]
Model
25(7.6) 38(10) 50(15) 75(23) 100(30) 125(38) 150(45) 164(50) 200(61) 246(75)
24K
1.00 0.95 0.93 0.89 0.85 0.81 0.78 0.75 -- --
36K
1.00 0.98 0.97 0.93 0.89 0.86 0.82 0.81 0.75 0.69
48K
1.00 0.98 0.97 0.94 0.90 0.87 0.82 0.81 0.74 0.65
60K
1.00 0.98 0.97 0.94 0.90 0.87 0.82 0.81 0.74 0.65
Heating：
EL[ft(m]
Model
25(7.6) 38(10) 50(15) 75(23) 100(30) 125(38) 150(45) 164(50) 200(61) 246(75)
24K
1.00 0.94 0.93 0.89 0.85 0.81 0.78 0.75 -- --
36K
1.00 0.98 0.97 0.93 0.89 0.86 0.83 0.81 0.76 0.70
48K
1.00 0.98 0.97 0.94 0.90 0.86 0.83 0.80 0.75 0.66
60K
1.00 0.98 0.97 0.94 0.90 0.86 0.83 0.80 0.75 0.66
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