Specifications

-
72
-
(3) Refrigerant piping work
Select the piping specification to fit the specification of Indoor unit and installation location.
(a) Decision of piping specification
• The branch piping (both gas and liquid lines) should always be arranged to have a level or perpendicu-
lar branch.
< 2-Way Branch >
< 3-Way Branch >
FloorFloor
Floor
Floor
Floor
Floor
Mount sections level with the floor.
Mount sections
perpendicular to the floor.
808
408
408
Outdoor unit
Indoor unit
φ25.4
φ19.05
φ9.52
φ19.05
φ9.52
φ12.7
1
3
2
4
808
308
508
φ25.4
φ15.88
φ9.52
φ19.05
φ9.52
φ12.7
1
5
3
2
4
1008
508
508
Outdoor unit
Indoor unit
φ28.58
φ19.05
φ9.52
φ19.05
φ9.52
φ15.88
1
2
Chart of shapes of branch piping parts (DIS-WB)
Gas pipe Liquid pipe Reducer Mark Mark Mark
45
190
80
10
20
ID28.58
ID19.05
ID19.05
ID9.52
ID15.88
ID9.52
OD28.58
(ID25.4)
ID25.4
(OD28.58)
OD15.88 ID12.7
15
90
180
8
80
10
OD19.05 ID15.88
80
10
12
3
4
5
(i) Twin type
•FDCP808HES3 [Branch pipe set: DIS-WB] • FDCP1008HES3 [Branch pipe set: DIS-WB]
Notes (1) 1 to 5 in the drawing include parts provided in the branch piping set. It shows the codes for the shapes of different-diameter connections.
(2) Branch piping should always be arranged to have level or perpendicular branch.