Hitachi FSG1 Series Technical Catalogue page 305

RAS-5FSG
The position of the connecting pipes is the following for each Outdoor Unit type:
¡ ¡ ¡ ¡
Model
Refrigerant Gas Piping
Connection Ø
RAS-5FSG 19.05 flare nut
RAS-8FSG 22.2 or 25.4 brazing
RAS-10FSG 25.4 or 28.6 brazing
RAS-16FSG 28.6 or 31.7 brazing
RAS-20FSG 34.92 or 38.1 brazing
RAS-24FSG1 34.92 or 38.1 brazing
RAS-30FSG1 41.3 or 44.5 brazing
RAS-8/10FXG
The position of the connecting pipes is the following for each Outdoor Unit type:
¡ ¡ ¡ ¡
Model
Refrigerant Gas (Low)
Piping Connection Ø
RAS-8FXG 25.4 or 22.2 Brazing
RAS-10FXG 28.6 Brazing
RAS-20FXG1 34.92 or 38.1 Brazing
RAS-30FXG1 41.3 or 44.5 Brazing
REFRIGERANT PIPING AND REFRIGERANT CHARGE
¢ ¢ ¢ ¢
Refrigerant Liquid Piping
Connection Ø
9.53 flare nut
12.7 flare nut
15.88 flare nut
19.05 flare nut
22.2 brazing
¢ ¢ ¢ ¢ £ £ £ £
Refrigerant Gas (High) Refrigerant Liquid
Piping Connection Ø Piping Connection Ø
19.05 Flare Nut 12.7 Flare Nut
19.05 Flare Nut 12.7 Flare Nut
22.2 or 25.4 Brazing 15.88 Flare Nut
28.6 or 31.75 Brazing 22.2 Brazing
RAS-8~30FSG(1)
A B C
138 242 240
138 228 254
138 234 247
138 234 247
, RAS-20/30FXG1
A B C
125 201 295
116 178 287
13
D E F
273 159 156
285 159 151
282 151 136
274 139 151
D E F G H
280 253.5 247.5 150.5 155.5 158.5
384 258 253 127 141
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