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Piping length and elevation
Multi Piping Type
Max total length
Outdoor Unit
of all pipes
Capacity
(A+B)/(A+B+C)/
(Btu/h class)
(A+B+C+D)
18k
50(164)
24k
75(246)
36k
75(246)
Indoor unit
Capacity
(Btu/h class)
Gas
9k
9.52(3/8)
12k
9.52(3/8)
18k
12.7(1/2)
CAUTION: Capacity is based on standard length and maximum allowance
length is on the basis of reliability.
Max Elevation
Max length of
Min length of
between each
each pipe
each pipe
indoor unit and
(A/B/C/D)
(A/B/C/D)
outdoor unit (h1)
25(82)
3(10)
25(82)
3(10)
25(82)
3(10)
Pipe Diameter
Unit : mm(inch)
Liquid
6.35(1/4)
6.35(1/4)
6.35(1/4)
A
B
C
D
Installation of Indoor, Outdoor Unit
Unit : m(ft)
Max elevation
Max.Combination
between indoor
of Indoor unit
units (h2)
(Btu/h class)
15(49)
7.5(25)
15(49)
7.5(25)
15(49)
7.5(25)
Standard
Additional
Pipe Length
Refrigerant
Unit : m(ft)
Unit : g/m(oz/ft)
7.5(25)
20(0.22)
7.5(25)
20(0.22)
7.5(25)
20(0.22)
h2
Installation Manual 11
24k
33k
48k
h1
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