4
In the case below, a joint for connecting tubes of different sizes is needed when connecting the inter-unit tube (
φ
9.52)
to the outdoor unit valve (
φ
12.7).
φ
6.35
φ
6.35
φ
6.35
φ
6.35
φ
9.52
φ
9.52
φ
9.52
φ
9.52
φ
9.52
A
φ
9.52
B
φ
9.52
C
Outdoor unit
Indoor unit
Union
φ
9.52
Flare
φ
12.7
φ
12.7
D
(φ
12.7
→ φ
9.52) Supplied Reducer
(28 36 types)
(28 36 types)
(28 36 types)
(28 36 types)
(1) Connecting indoor unit types 28 to 36 at D
φ
6.35
φ
6.35
φ
6.35
φ
6.35
φ
9.52
φ
9.52
φ
9.52
φ
9.52
φ
12.7
A
φ
9.52
B
φ
9.52
C
Outdoor unit
Indoor unit
Union
φ
12.7
Flare
φ
9.52
φ
12.7
D
(28 36 types)
(28 36 types)
(28 36 types)
(50 type)
(More than 17 m)
(2) Connecting indoor unit type 50 at D (Length of tube: more than 17 m)
φ
6.35
φ
6.35
φ
6.35
φ
6.35
φ
9.52
φ
9.52
φ
9.52
φ
9.52
φ
9.52
A
φ
9.52
B
φ
9.52
C
Outdoor unit
Indoor unit
Union
φ
9.52
Flare
φ
12.7
φ
12.7
D
(φ
12.7
→ φ
9.52) Supplied Reducer
(28 36 types)
(28 36 types)
(28 36 types)
(50 type)
(3) Connecting indoor unit type 50 at D (Length of tube: less than 17 m)
φ
6.35
φ
6.35
φ
6.35
φ
6.35
φ
9.52
φ
9.52
φ
9.52
φ
9.52
φ
12.7
A
φ
9.52
B
φ
9.52
C
Outdoor unit
Indoor unit
φ
12.7
D
(28 36 types)
(28 36 types)
(28 36 types)
(70 type)
(4) Connecting indoor unit type 70 at D
Fig. 2a
Fig. 2b
Fig. 2c
Fig. 2d
