Refrigerant Line Sizing
Units of Measurement:
°F - ft - Btu/h
°F - ft - ton
°C - m - Btu/h
°C - m - ton
°C - m - W
°C - m - kW
Evaporator Temp:
Refrigerant:
12
134a
22
290
401A
404A
407A
407C
407F
408A
409A
410A
414B
422D
437A
438A
448A
449A
450A
452A
455A
502
507
513A
Refrigerant Line:
Liquid
Suction
Discharge
Suction Riser
Condenser Drain
Liquid Temp:
Refrigerant Line OD (in):
3/16
1/4
5/16
3/8
1/2
5/8
3/4
7/8
1-1/8
1-3/8
1-5/8
2-1/8
2-5/8
3-1/8
3-5/8
4-1/8
5-1/8
6-1/8
8-1/8
Auto Select
Equivalent Length:
Vertical Height:
System Capacity:
Application Notes:
Liquid Line
- < 1°F to 2°F, < 300 fpm
Suction Line
- < 2°F, > 750 fpm (horizontal), > 1500 fpm (suction riser), < 4000 fpm
- Pitched 1/2" per 100 ft. toward compressor (horizontal)
- You only need to figure suction riser if compressor is above the evaporator