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Evaporator Coil Orifices
Evaporator Coil Orifice
An orifice (also referred to as a piston or flowrater) is installed in an evaporator coil when the coil is a different tonnage rating than the condenser or heat pump tonnage rating. Installation takes about 5 minutes, and consists of replacing orifice already inside coil. We have an online picture step-by-step guide which shows how to do this. If you are installing a new evaporator coil and can not find manufacturer-specific information for your outdoor air conditioner or heat pump, use this chart as a reference to ensure a properly sized orifice is installed in your system.
  R-22 R-410A
Tonnage Orifice Size Orifice Size
1.5 Ton 0.053 0.047
2 Ton 0.059 0.053
2.5 Ton 0.071 0.059
3 Ton 0.076 0.071
3.5 Ton 0.080 0.076
4 Ton 0.082 0.080
5 Ton 0.090 0.090
Displaying 1-11 of 11 results.
Danfoss Orifice #53 popular
13 SEER Orifice Kit - 1.5 Ton R-22 Units, 2 Ton R-410A Units

$ 5.99
 
Danfoss Orifice #55
13 SEER Orifice Kit - 1.5 Ton R-22 Units, 2 Ton R-410A Units

$ 6.99
 
Danfoss Orifice #59
13 SEER Orifice Kit - 2 Ton R-22 Units, 2.5 Ton R-410A Units

$ 5.99
 
Danfoss Orifice #65 popular
13 SEER Orifice Kit - 2 Ton R-22 Units, 2.5 Ton R-410A Units

$ 5.99
 
Danfoss Orifice #67
2.5 Ton Orifice Kit for R-22, 14 SEER Air Conditioner

$ 7.99
 
Danfoss Orifice #68
13 SEER Orifice Kit - 2.5 Ton R-22 Units, 3 Ton R-410A Units

$ 5.99
 
Danfoss Orifice #71 popular
13 SEER Orifice Kit - 2.5 Ton R-22 Units, 3 Ton R-410A Units

$ 5.99
 
Danfoss Orifice #74
13 SEER Orifice Kit - 3 Ton R-22 Units, 3.5 Ton R-410A Units

$ 6.99
 
Danfoss Orifice #82
13 SEER Orifice Kit - 4 Ton R-22 Units

$ 6.99
 
Danfoss Orifice #84
13 SEER Orifice Kit - 4 Ton R-22 Units

$ 5.99
 
Danfoss Orifice #90
13 SEER Orifice Kit - 5 Ton R-22 Units, 5 Ton R-410A Units

$ 7.99
 
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