Hitachi SET FREE-Serie Bedienungsanleitung Seite 41

PIPING WORK AND REFRIGERANT CHARGE
8.3.4 Refrigerant pipe connection
Perform the piping connection work for each outdoor unit. Prepare the refrigerant pipe in the field for the piping work.
(All measurements are in mm)
Low pressure gas piping connection A.
This piping connection is not used at
Heat Pump system (2 pipes).
High/low pressure gas
piping connection B
Liquid piping connection C

FSXNSE
3 pipes system
Gas
model
low High/low
pressure pressure
RAS-8FSXNSE Ø19.05 Ø15.88
RAS-10FSXNSE Ø22.2 Ø19.05
RAS-12FSXNSE Ø25.4
RAS-14FSXNSE Ø25.4
RAS-16FSXNSE Ø28.58
RAS-18FSXNSE Ø28.58
RAS-20FSXNSE Ø28.58
RAS-22FSXNSE Ø28.58
RAS-24FSXNSE Ø28.58

FSXNPE
3 pipes system
Gas
model
low High/low
pressure pressure
RAS-5FSXNPE Ø15.88
RAS-6FSXNPE Ø19.05
RAS-8FSXNPE Ø19.05
RAS-10FSXNPE Ø22.2
RAS-12FSXNPE Ø25.4
RAS-14FSXNPE Ø25.4
RAS-16FSXNPE Ø28.58
RAS-18FSXNPE Ø28.58
31 PMML0479 rev.2 - 02/2018
D
E
F
K (Low pressure gas piping connection)
L (High/low pressure gas piping connection)
2 pipes system
liquid Gas liquid
Ø9.52 Ø19.05 Ø9.52
Ø9.52 Ø22.2 Ø9.52
Ø22.2 Ø12.7 Ø25.4 Ø12.7
Ø22.2 Ø12.7 Ø25.4 Ø12.7
Ø22.2 Ø12.7 Ø28.58 Ø12.7
Ø22.2 Ø15.88 Ø28.58 Ø15.88
Ø22.2 Ø15.88 Ø28.58 Ø15.88
Ø25.4 Ø15.88 Ø28.58 Ø15.88
Ø25.4 Ø15.88 Ø28.58 Ø15.88
2 pipes system
liquid Gas liquid
Ø12.7 Ø9.52 Ø15.88 Ø9.52
Ø15.88 Ø9.52 Ø19.05 Ø9.52
Ø15.88 Ø9.52 Ø19.05 Ø9.52
Ø19.05 Ø9.52 Ø22.2 Ø9.52
Ø22.2 Ø12.7 Ø25.4 Ø12.7
Ø22.2 Ø12.7 Ø25.4 Ø12.7
Ø22.2 Ø12.7 Ø28.58 Ø12.7
Ø22.2 Ø15.88 Ø28.58 Ø15.88
J (Liquid piping connection)
a B C D e
Ø22.2 Ø22.2 Ø9.52 269 331 414 268 163 163 117 131 131 240 225 305
Ø25.4 Ø22.2 Ø12.7 178 239 322 263 160 163 112 130 131 147 132 212
Ø28.58 Ø22.2 Ø15.88 177 239 322 259 160 163 132 152 153 147 132 212
a B C D e
Ø22.2 Ø22.2 Ø9.52 269 331 414 268 163 163 117 131 131 240 225 305
Ø22.2 Ø9.52 177 239
Ø22.2
Ø25.4 Ø12.7 178 239
Ø28.58 Ø22.2 Ø15.88 177 239 322 259 160 163 132 152 153 147 132 212
Dimensions
f G H i J k l
Dimensions
f G H i J k l
268 163 117 131
322 163 131
263 160 112 130
m n P
m n P
147 132 212
147 132 212