11.6 DISTRIBUTION METHOD
?
N O T E
For the following installation types, when the installation is divided into
two or more parts, equilibrate the length and the ratio of total indoor unit
connected capacity of each part.
11.6.1 Header branch piping system
Installation types
Considerations
Do not connect two header branches consecutively.
Header
Main pipe
Main pipe
Header
CORRECT
INCORRECT
Indoor unit
Header
Indoor
unit
Main pipe
Installation position
Perform to install horizontally always (Example.: In case of
model MH-108AN)
Horitzontally
Horitzontally
Gas piping side
Liquid piping side
!
C A U T I O N
Seal the end of branch pipes which are not connected, by brazing factory
supplied closing pipes.
11.6.2 Line branch piping system
Installation types
3
5
6
4
7
1
2
8
f
b
g
?
N O T E
Distribution system not recommended for installations with more indoor
units than:
•
6 units for RAS-4FS(V)N(Y)3E
•
8 units for RAS-5FS(V)N(Y)3E
•
9 units for RAS-6FS(V)N(Y)3E
REFRIGERANT PIPING & REFRIGERANT CHARGE
PMML0354A rev.1 - 03/2015
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