Hitachi RAS-(4-12)HRNM(2)(E) - Connecting Flare Adapter (Only for RAS-(2;2.5)HVRN2)

3 Piping work and
refrigerant charge
79
SMGB0064 rev.0 - 08/2011
3
3 Correct position of twin distributor
Correct position of twin branch pipe Wrong position of twin branch pipe
A
A
B
B
C
C
C
A. Up.
B. Greater than 0.5 m.
C. Main pipe.
D. Refrigerant direction.
E. Refrigerant Main pipe direction.
F. Branch pipe.
G. Main pipe.
A. Refrigerant direction.
B. Main pipe.
C. Branch pipe.
4 Correct position of triple branch pipeInstall the header horizontally
Example: Triple Branch pipe
1. Gas piping.
2. Liquid piping.
3.4.5 Connecting are adapter (only for RAS-(2/2.5)HVRN2)
1. Liquid line.
2. Flare nut (Accessories).
3. Pipe (Accessories).
4. Indoor unit.
5. Flare adapter (Accessories).
6. Gas line.
7. Pipe (Field supplied).
1
2
3
4
5
6
7
The piping sizes for indoor unit and outdoor unit are different. Attach the are adapter (accessories) at the indoor piping
union part.
Use the adequate are adapter as follows:
Indoor unit
Flare adapter
Gas pipe Liquid pipe
2.0 HP
Big size
(Ø15.88→Ø12.70)
—
2.5 HP
Big size
(Ø15.88→Ø12.70)
Small size
(Ø9.53→Ø6.35)