Sanyo SPW-T253GH56 - Tubing Size; Straight Equivalent Length of Joints

9
S4179544
* For the 25 type, use the “Tube connector” (supplied with the unit) for sizing up a narrow tube from 6.35 to
9.52.
1-7. Straight Equivalent Length of Joints
Design the tubing system by referring to the following table for the straight equivalent length of joints.
Table 1-13 Straight Equivalent Length of Joints
Wide tube (gas side) ø12.7 ø15.88 ø19.05 ø22.22 ø25.4 ø28.58
90° elbow 0.3 0.35 0.42 0.48 0.52 0.57
45° elbow 0.23 0.26 0.32 0.36 0.39 0.43
U-bend 0.9 1.05 1.26 1.44 1.56 1.71
Trap bend (R60 - 100 mm) 2.3 2.8 3.2 3.8 4.3 4.7
Y-branch Equivalent length conversion not needed
Ball valve for servicing Equivalent length conversion not needed
>
>
Less than
7.3 (25,000)
Q 7.3
15.88 (5/8) or
19.05 (3/4)
9.52 (3/8)
70 type
25.4 (1)
12.7 (1/2)
48 type
19.05 (3/4)
9.52 (3/8)
90 type
28.58 (1 1/8)
12.7 (1/2)
>
More than
22.4 (76,400)
Q > 22.4
28.58 (1 1/8)
12.7 (1/2)
1-6. Tubing Size
Table 1-11 Main Tubing Size (LA, LB, LC)
Main tube (LA) O. D. Main tube (LB, LC) OD
Outdoor unit
Total cooling capacity Q kw, (BTU/h),
of the unit(s) after the main tube
Unit: mm (in.)
Wide
tube
Narrow
tube
Table 1-12 Distribution Branch Size (
ll
ll
l
1
,
ll
ll
l
2
,
ll
ll
l
3
,
ll
ll
l
4
)
Indoor unit type 9 type 12 type 18 type 25 type 36 type 48 type
Wide tube 12.7 (1/2) 15.88 (5/8) 19.05 (3/4)
Narrow tube 9.52 (3/8)*
NOTE
Unit: mm (in.)
22.4 (76,400) or less
but more than
16.0 (54,600)
22.4 Q > 16.0
25.4 (1)
12.7 (1/2)
16.0 (54,600) or less
but more than
7.3 (25,000)
16.0 Q > 7.3
19.05 (3/4)
9.52 (3/8)
Unit: m