Heatcraft Refrigeration Products H-ENGM0806, H-ENGM0408 manual Liquid Line Size

Table 22A. Recommended Line Sizes for R-134a (continued) *

SUCTION LINE SIZE

LIQUID LINE SIZE

SUCTION TEMPERATURE

Receiver to

+10˚F

0˚F

Expansion Valve

SYSTEM

Equivalent Lengths

Equivalent Lengths

Equivalent Lengths

CAPACITY

25'

50'

75'

100'

150'

200'

25'

50'

75'

100'

150'

200'

25'

50'

75'

100'

150'

200'

BTU/H

3/8

1/2

1/2

1/2

1/2

5/8

3/8

1/2

1/2

1/2

1/2

5/8

3/8

3/8

3/8

3/8

3/8

3/8

1,000

1/2

5/8

5/8

7/8

7/8

7/8

1/2

5/8

5/8

7/8

7/8

7/8

3/8

3/8

3/8

3/8

3/8

3/8

3,000

5/8

5/8

7/8

7/8

7/8

7/8

5/8

5/8

7/8

7/8

7/8

7/8

3/8

3/8

3/8

3/8

3/8

3/8

4,000

5/8

7/8

7/8

7/8

1 1/8

1 1/8

5/8

7/8

7/8

7/8

7/8

1 1/8

3/8

3/8

3/8

3/8

3/8

3/8

6,000

7/8

7/8

7/8

1 1/8

1 1/8

1 1/8

7/8

7/8

7/8

1 1/8

1 1/8

1 1/8

3/8

3/8

3/8

3/8

3/8

1/2

9,000

7/8

7/8

1 1/8

1 1/8

1 1/8

1 3/8

7/8

1 1/8

1 1/8

1 1/8

1 1/8

1 3/8

3/8

3/8

3/8

3/8

1/2

1/2

12,000

7/8

1 1/8

1 1/8

1 1/8

1 3/8

1 3/8

7/8

1 1/8

1 1/8

1 1/8

1 3/8

1 3/8

3/8

3/8

3/8

1/2

1/2

1/2

15,000

1 1/8

1 1/8

1 1/8

1 3/8

1 3/8

1 3/8

1 1/8

1 1/8

1 1/8

1 3/8

1 3/8

1 3/8

3/8

3/8

1/2

1/2

1/2

1/2

18,000

1 1/8

1 1/8

1 3/8

1 3/8

1 3/8

1 5/8

1 1/8

1 1/8

1 3/8

1 3/8

1 5/8

1 5/8

3/8

1/2

1/2

1/2

1/2

5/8

24,000

1 1/8

1 3/8

1 3/8

1 3/8

1 5/8

1 5/8

1 1/8

1 3/8

1 3/8

1 5/8

1 5/8

1 5/8

1/2

1/2

1/2

1/2

5/8

5/8

30,000

1 3/8

1 3/8

1 3/8

1 5/8

1 5/8

2 1/8

1 3/8

1 3/8

1 5/8

1 5/8

1 5/8

2 1/8

1/2

1/2

1/2

5/8

5/8

5/8

36,000

1 3/8

1 5/8

1 5/8

2 1/8

2 1/8

2 1/8

1 3/8

1 3/8

1 5/8

1 5/8

2 1/8

2 1/8

1/2

1/2

5/8

5/8

5/8

5/8

42,000

1 3/8

1 5/8

1 5/8

2 1/8

2 1/8

2 1/8

1 3/8

1 5/8

1/58

2 1/8

21/8

2 1/8

1/2

5/8

5/8

5/8

5/8

7/8

48,000

1 3/8

1 5/8

2 1/8

2 1/8

2 1/8

2 1/8

1 3/8

1 5/8

1 5/8

2 1/8

2 18

2 1/8

1/2

5/8

5/8

5/8

7/8

7/8

54,000

1 5/8

1 5/8

2 1/8

2 1/8

2 1/8

2 1/8

1 3/8

2 1/8

2 1/8

2 1/8

2 1/8

2 1/8

5/8

5/8

5/8

5/8

7/8

7/8

60,000

1 5/8

2 1/8

2 1/8

2 1/8

2 1/8

2 5/8

1 5/8

2 1/8

2 1/8

2 1/8

2 1/8

2 1/8

5/8

5/8

5/8

7/8

7/8

7/8

66,000

1 5/8

2 1/8

2 1/8

2 1/8

2 5/8

2 5/8

1 5/8

2 1/8

2 1/8

2 1/8

2 1/8

2 5/8

5/8

5/8

7/8

7/8

7/8

7/8

72,000

1 5/8

2 1/8

2 1/8

2 1/8

2 5/8

2 5/8

1 5/8

2 1/8

2 1/8

2 1/8

2 5/8

2 5/8

5/8

5/8

7/8

7/8

7/8

7/8

78,000

1 5/8

2 1/8

2 1/8

2 1/8

2 5/8

2 5/8

1 5/8

2 1/8

2 1/8

2 1/8

2 5/8

2 5/8

5/8

7/8

7/8

7/8

7/8

7/8

84,000

1 5/8

2 1/8

2 1/8

2 5/8

2 5/8

2 5/8

1 5/8

2 1/8

2 1/8

2 1/8

2 5/8

2 5/8

5/8

7/8

7/8

7/8

7/8

7/8

90,000

2 1/8

2 1/8

2 5/8

2 5/8

2 5/8

3 1/8

2 1/8

2 1/8

2 5/8

2 5/8

2 5/8

3 1/8

7/8

7/8

7/8

7/8

7/8

1 1/8

120,000

2 1/8

2 5/8

2 5/8

2 5/8

3 1/8

3 1/8

2 1/8

2 5/8

2 5/8

2 5/8

3 1/8

3 1/8

7/8

7/8

7/8

7/8

1 1/8

1 1/8

150,000

2 1/8

2 5/8

2 5/8

3 1/8

3 1/8

3 1/8

2 1/8

2 5/8

2 5/8

3 1/8

3 1/8

3 1/8

7/8

7/8

7/8

1 1/8

1 1/8

1 1/8

180,000

2 5/8

2 5/8

3 1/8

3 1/8

3 5/8

3 5/8

2 5/8

2 5/8

2 5/8

3 1/8

3 1/8

3 5/8

7/8

7/8

1 1/8

1 1/8

1 1/8

1 1/8

210,000

2 5/8

2 5/8

3 1/8

3 1/8

3 5/8

3 5/8

2 5/8

2 5/8

3 1/8

3 1/8

3 5/8

3 5/8

7/8

1 1/8

1 1/8

1 1/8

1 1/8

1 3/8

240,000

2 5/8

3 1/8

3 1/8

3 5/8

3 5/8

4 1/8

2 5/8

3 1/8

3 1/8

3 5/8

3 5/8

4 1/8

1 1/8

1 1/8

1 1/8

1 1/8

1 3/8

1 3/8

300,000

2 5/8

3 1/8

3 5/8

3 5/8

4 1/8

4 1/8

2 5/8

3 1/8

3 5/8

3 5/8

4 1/8

4 1/8

1 1/8

1 1/8

1 1/8

1 3/8

1 3/8

1 5/8

360,000

3 1/8

3 5/8

3 5/8

4 1/8

5 1/8

5 1/8

3 1/8

3 5/8

3 5/8

4 1/8

5 1/8

5 1/8

1 1/8

1 1/8

1 3/8

1 3/8

1 5/8

1 5/8

480,000

3 1/8

3 5/8

4 1/8

5 1/8

5 1/8

5 1/8

3 1/8

3 5/8

4 1/8

4 1/8

5 1/8

5 1/8

1 3/8

1 3/8

1 3/8

1 5/8

1 5/8

1 5/8

600,000

*NOTES:

1.Sizes that are highlighted indicate maximum suction line sizes that should be used for risers. Riser size should not exceed horizontal size. Properly placed suction traps must also be used for adequate oil return.

All sizes shown are for O.D. Type L copper tubing.

2.Suction line sizes selected at pressure drop equivalent to 2˚F. Reduce estimate of system capacity accordingly.

3.Recommended liquid line size may increase with reverse cycle hot gas systems.

4.Consult factory for R-134a operation at winter conditions below 0° ambient. Heated and insulated receiver required below 0° ambient.

If system load drops below 40% of design, consideration to installing double suction risers should be made.

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