4-3 Main pipe (L1) diameter confirmation
Outdoor unit
capacity
(kW)
Liquid pipe
26 . 0
28 . 0
4-4 Main pipe (L2-L5) diameter of IDU confirmation
Downstream
indoor unit
Capacity(kW)
W<6 . 5
6 . 5≤W<18
17≤W<22
22≤W<28
28≤W≤33 . 5
4-5 Allowed length and height difference of refrigerant pipe
Connecting mode 1
4.Connecting pipe installation
L1<30m
Main pipe(mm)
Gas pipe
SP- FQG- NO 2 D
SP- FQG- NO 3 D
Φ 28 . 6
SP- FQG- NO 3 D
Φ 28 . 6
Main piping dimension of IDU(mm)
Liquid pipe
Φ9 . 52
Φ9 . 52
Φ9 . 52
Φ9 . 52
Φ12 . 7
1st branch
The indoor unit farthest piping equivalent length
From the first branch pipe farthest piping equivalent length
Piping
Main pipe(mm)
First
branch
Liquid pipe
Downstream equivalent piping length
Gas pipe
Φ12 . 7
Φ15 . 88
Φ19 . 05
Φ22 . 2
Φ28 . 6
Equivalent length to the nearest branch
Indoor units
9
L1≥30m
First
branch
Gas pipe
SP- FQG- NO 2 D
Φ 25 . 4
SP- FQG- NO 3 D
Φ 28 . 6
SP- FQG- NO 3 D
Φ 28 . 6
Applied branch pipe
SP- FQG- N 01 D
SP- FQG- N 01 D
SP- FQG- N 01 D
SP- FQG- N 02 D
SP- FQG- N 03 D
V.1