Hitachi FSG1 Series Technical Catalogue page 285

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Table : 2 pipes part Multi-kit ~ Last Multi-kit
Pipe Size (f mm)
CH Unit
Gas
HP<5
15.88
(after CH-4.0GE)
HP<5
(except after CH- 19.05
4.0GE)
5£HP<7.5 22.2
7.5£HP<10 25.4 (22.2)
28.6
10£HP£11.5
¦
Table : Outdoor Unit ~ Header Branch
Multi-Kit Model
Outdoor Unit
3~8 Branches
RAS-8FXG
RAS-10FXG
E-88XE3
RAS-20FXG1
RAS-30FXG1
?
NOTE:
For 20 & 30 HP this is connectable only when capacity
of the Indoor Units after this header is below 13 HP.
§
Table : 2 pipes part of Line Branch ~ Header Branch
CH Unit
2~4
Branches
CH-4.0GE E-54SE
CH-6.5GE E-54SE
CH-11.5G -
?
NOTE:
CH-4.0GE can be used up to 3 branches and up to 6
branches is applicable for CH-6.5GE.
The reducer (field-supplied) can be used to adjust to
the branch pipe when the header branch work is
carried out to the CH-4.0GE.
REFRIGERANT PIPING AND REFRIGERANT CHARGE
Multi-Kit
Liquid
9.53 E-42ME1
9.53 E-52ME1
9.53 E-82ME1
(E-82ME1)
12.7
E-102ME1
12.7 E-102ME1
Multi-Kit Model
2~6 2~8
Branches Branches
- E-58SE
- E-58SE
E-86SE3 E-88SE3
¨
Table : Branch ~ Indoor Unit
Indoor Unit
Pipe Size (f mm)
Capacity (HP)
Gas
0.8 and 1.0 12.7
1.5 12.7
2.0 and 2.3 15.88
2.5 and 3.0 15.88
4.0 and 5.0 19.05
?
NOTE:
(*) In case that the liquid pipe for the indoor unit with the
capacity 1.5HP to 2.3HP is longer than 15m, use the
pipe with diameter of Æ9.53. (Use filed supplied
reducer if it is necessary)
1. The pipe shown in the above table is applicable for
both: the line branch and the header branch.
In case that the length of the pipe at the end of the
indoor unit exceeds 5m, the liquid and gas pipes need
to increase one size respectively.
2. In the line branch, the length of the pipe between the
terminal branch (farthest from the O.U.) of three pipes
(specified in the figure as "c" and "d") and the indoor
unit must be less than 5 m, if it is longer than 5 m use
a T-branch to the liquid pipe of three pipes as shown
below. (Use CH-4.0GE and CH6.5GE T-branch with
Æ12.7, CH-11.5G T-branch with Æ15.88, field
supplied).
Correct
Outdoor Unit
Side
3. In the case that the pipe length at the end of two pipes
branch of the Indoor Unit (specified in the figure as "a"
and "b") exceed 5 m, the liquid and gas pipes must be
increased one size respectively.
13
/9
Maximum
Length of Liquid
Liquid
Pipe
6.35 30
6.35 (*) 15
6.35 (*) 15
9.53 30
9.53 30
Incorrect
Outdoor Unit
Side