EngA AF Series - Refrigeration Table 2 (R134 A) Piping Guidelines For Normal Air Conditioning Duty

A
AF / DCU MANUAL
IOM-52 13 of 23 Apr 13 R2
RefrigerationTable2(R134a)PipingGuidelinesforNormalAirConditioningDuty.
R134a
Net
Evaporator
Capacity

EquivalentLength
(Actuallengthplusfittingsandvalves)
Maximum
RiserSize
Tons Line 30feet 50feet 100feet 150feet
3tons
Suction 7/8” 11/8" 11/8” 13/8” 13/8"
Discharge 5/8" 3/4”(7/8”) 3/4”(7/8”) 7/8" 7/8"
Liquid 3/8" 3/8” 1/2" 1/2"
Condensate 5/8" 5/8" 
4tons Suction 11/8” 11/8" 13/8” 13/8” 13/8"
 Discharge 3/4”(7/8”) 3/4”(7/8”) 7/8” 7/8" 7/8"
 Liquid 1/2" 1/2” 1/2" 1/2"
 Condensate 7/8" 7/8" 
5tons Suction 11/8" 13/8" 13/8" 15/8" 15/8"
 Discharge 3/4”(7/8”) 7/8” 7/8" 11/8" 11/8"
 Liquid 1/2" 1/2" 5/8" 5/8”
 Condensate 7/8” 7/8” 
7.5tons Suction 13/8" 13/8" 15/8" 15/8" 15/8"
 Discharge 7/8" 7/8" 11/8" 11/8" 11/8"
 Liquid 1/2" 1/2" 5/8" 7/8"
 Condensate 7/8” 7/8” 
10tons Suction 13/8" 15/8" 21/8" 25/8" 21/8"
 Discharge 7/8” 11/8" 11/8" 11/8" 11/8"
 Liquid 5/8" 5/8" 5/8" 3/4”(7/8”)
 Condensate 11/8” 11/8” 
12.5tons Suction 15/8" 15/8" 21/8" 21/8" 21/8"
 Discharge 11/8" 11/8" 11/8" 13/8" 13/8"
 Liquid 5/8” 5/8" 7/8” 3/4”(7/8”)
 Condensate 11/8" 11/8" 
15tons Suction 15/8" 21/8" 21/8" 21/8" 21/8"
 Discharge 11/8" 11/8" 1 3/8" 13/8" 13/8"
 Liquid 3/4”(7/8”) 3/4”(7/8”) 7/8” 7/8"
 Condensate 13/8" 13/8" 
20tons Suction 21/8" 21/8" 25/8" 25/8" 25/8"
 Discharge 11/8" 13/8" 15/8" 15/8" 15/8"
 Liquid 7/8” 7/8” 7/8” 7/8”
 Condensate 13/8” 13/8” 

