Hitachi FSXN Series Service Manual page 44

3 Piping work and
refrigerant charge
¿ SET FREE FSXN (three pipes)
Key:
ID: inner diameter.
OD: outer diameter.
Gas line (low pressure) Gas line (high pressure)
ID15.88
ID19.05
ID25.4 ID22.2
ID28.6
Ø25.4
Ø28.6
B Ø25.4
A
ID25.4
ID28.6
Gas line (low pressure) Gas line (high pressure)
ID25.4
ID31.75
ID28.6
ID31.75
ID38.1
Ø31.75
Ø38.1
B
A
ID34.9
Ø31.75
ID31.75
Gas line (low pressure) Gas line (high pressure)
ID25.4
ID31.75 ID28.6
ID38.1 ID31.75
Ø31.75
D
Ø38.1
B
B
A
Ø31.75
ID31.75
Gas line (low pressure) Gas line (high pressure)
ID25.4
ID31.75 ID28.6
ID31.75
ID38.1
Ø31.75
Ø38.1
C
A
ID34.9
Ø31.75
ID31.75
37
SMGB0065 rev. 1 - 12/2010
Quantity: 1. (1): quantity 2.
All measurements are in mm.
MC-20XN
Gas line reducer
(low pressure)
ID15.88
ID19.05
ID25.4
ID25.4 ID22.2
ID22.2
ID28.6
ID19.05
Ø25.4
Ø28.6
ID22.2
B A
Ø25.4
OD22. 2
ID25.4
MC-21XN
Gas line reducer
(low pressure)
ID15.88
ID19.05
ID25.4 ID22.2 ID31.75
ID28.6 ID28. 6
Ø25.4
ID25. 4
Ø28.6
B
A
Ø25.4
OD31.75
ID25.4
MC-30XN Connection kit 1
Gas line reducer
(low pressure)
ID31.75
ID25.4
ID28.6
ID28.6
ID25.4
ID31.75
ID31.75
ID38.1
Ø31.75 ID31.75
D
Ø38.1
OD31.75
ID34.9
A
Ø31.75
ID41.3
ID31.75
ID34.9
MC-30XN Connection kit 2
Gas line reducer
(low pressure)
ID31.75
ID28.6
ID15.88
ID19.05
ID25.4
ID25.4 ID22.2
ID28.6
Ø25.4
Ø28.6
C
Ø25.4
A OD31.75
ID25.4
ID28.6
A: towards the outdoor unit.
B: towards the indoor unit.
Gas line reducer
(high pressure)
OD25.4 ID25.4
ID22.2
ID19.05
OD25.4
OD22.2
ID19.05
ID22.2
OD25.4 ID15.88
ID19.05
ID19.05
ID22.2 (1)
OD19.05 OD25.4
ID15.88 ID22.2
Gas line reducer
(high pressure)
OD25.4 ID25.4
ID22.2
ID19.05
OD31.75
OD22.2
ID19.05
ID22.2
OD25.4 ID15.88
ID25. 4
ID19.05
ID28. 6
(1)
ID22.2
OD19.05
ID15.88
Gas line reducer
(high pressure)
OD31.75
OD31.75
ID31.75
ID28.6
ID25.4
ID25.4
ID28.6
ID28.6
OD31.75
OD25.4 ID15.88
ID19.05
OD38.1
ID22.2
OD25.4
OD31.75
ID22.2
Gas line reducer
(high pressure)
OD25.4 ID25.4
OD31.75
ID22.2
ID19.05
OD22.2
ID19.05
ID25.4
ID22.2
ID28.6
OD25.4 ID15.88
ID19.05
ID22.2 (1)
OD31.75
OD19.05
ID15.88
C: towards connection kit 1.
D: towards connection kit 2.
Liquid line
Liquid line
reducer
ID9.53
ID15.88
ID12.7
ID15.88
OD19.05
ID19.05
Ø19.05
ID15.88
Ø25.4
ID12.7
ID9.53
A
B
Ø19.05
ID19.05
Liquid line
Liquid line
reducer
ID9.53
ID15.88 ID12.7
ID15.88
OD19.05
ID19.05
Ø19.05
ID15.88
Ø25.4
ID12.7
ID9.53
A
B
Ø19.05
ID19.05
Liquid line
Liquid line
reducer
ID9.53
ID15.88 ID12.7
ID15.88
OD19.05
ID19.05
Ø19.05
D ID15.88
Ø25.4
ID12.7
B
ID9.53
A
Ø19.05
ID19.05
Liquid line
Liquid line
reducer
ID9.53
OD19.05
ID15.88 ID12.7
ID15.88
ID15.88
ID19.05
ID12.7
Ø19.05
ID9.53
Ø25.4
OD15.88
C
Ø19.05
A
ID19.05
ID19.05
3