Hitachi RAS-4-HNPE - Common Wiring Between Indoor and Outdoor Units

3. Piping work and refrigerant charge
84
SMGB0079 rev.0 - 01/2013
RAS-12HV(P/C)
Flare connection
Existing refrigerant pipe
(Outlet on the rear side)
Existing refrigerant pipe
(Outlet on the rear side)
Existing refrigerant pipe
(Outlet on the rear side)
Strainer for gas pipe
Strainer for liquid pipe
Brazing connection
Elbow connection (Field-Supplied)
Existing refrigerant pipe
(Brazing connection)
N O T E
Sizes (a) to (g) depend on the outdoor unit model
RAS-(2/2.5)HVNP RAS-3HVNC RAS-(4-6)H(V)NPE RAS-8HN(P/C)E RAS-10HN(P/C)E RAS-12HV(P/C)
a 22 26 581 596 578 580
b 109 103 491 497 497 521
c 129 127 329 282 264 266
d -- -- 229 137 137 161
e -- -- 46 47 -- --
f -- -- 96 98 -- --
g -- -- 81 69 -- --