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Piping length and elevation
Multiple Piping Models
Capacity(kBtu/h)
18
26
30
36
* : A3UQ18GFA0 only , ** : A4UQ28GFA0 Only
Distributor type Models
Capacity
Total Length
(kBtu/h)
40
135
48
145
54
145
A
h1
Multiple Piping Type
CAUTION
!
Capacity is based on standard length and maximum allowance length is on the basis of
reliability. If outdoor unit is at higher elevation than the indoor units, after 24 m of vertical
height, 1 oil trap is required.
INSTALLATION OF INDOOR, OUTDOOR UNIT
Total Length
Max Length(A/B)
30 or 50*
60 or 70**
70
75
Max Main Pipe
Total Branch
Length (A/B)
Pipe Length
55
55
55
h2
B
Max Elevation
(h1)
25
15
25
15
25
15
25
15
Max Branch
Pipe Length
80
15
90
15
90
15
Distributor
A
Distributor
h1
Main Pipe
B
Distributor Type
(Unit: m)
ln-ln Elevation
(h2)
7.5
7.5
7.5
7.5
(Unit: m)
Max Elevation
In - In Elevation
(h1)
(h2)
30
15
30
15
30
15
Branch Pipe
11
h2
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