—3—
CHECK-FLO-RATER® PISTON CHART
* Piston listed is for any approved coil non-capillary tube combination.
Piston is shipped with outdoor unit and must be installed in an approved
indoor coil.
RECOMMENDED TUBE DIAMETERS
* For tube sets between 50 and 175 ft, consult Residential Split System Long-Line Application Guideline.
SOUND POWER (dBA)
UNIT SIZE
PISTON*
IDENTIFICATION NO.
018-A, D 52
024-A, D 57
030-A, D 67
036-A, D, E 73
036-B 70
042-A, C 76
042-B 82
048-A, C 88
048-B 84
060-A, E 93
060-B 90
UNIT
SIZE
Liquid Tube Diameter (In.) Vapor Tube Diameter (In.)
0 to 50 Ft
Tube Length Long-Line Applications*
0 to 50 Ft
Tube Length
Long-Line Applications*
(Maximum Diameter)
018, 024
3/8 3/8
5/8 3/4
030, 036 3/4 7/8
042, 048 7/8 1-1/8
060 1-1/8 1-1/8
UNIT
SIZE
SOUND
LEVEL (dBA)
OCTAVE BAND CENTER FREQUENCY (Hz)
125 250 500 1000 2000 4000 8000
018-A 80 55.5 64.0 68.5 73.0 71.0 66.5 59.5
018-D 80 57.5 64.0 69.5 72.0 71.5 68.0 60.0
024-A 80 59.5 65.0 69.5 74.0 73.0 70.0 62.0
024-D 82 55.5 63.0 68.0 71.0 70.5 67.5 58.5
030-A 80 55.0 62.5 73.5 74.0 71.0 67.5 59.5
030-D 80 54.0 68.5 72.5 73.0 70.5 67.0 61.5
036-A 82 57.0 64.5 73.0 74.0 72.0 73.0 65.5
036-B 82 55.0 64.0 73.0 74.5 72.0 68.5 64.0
036-D 82 56.0 64.5 69.0 75.5 75.0 72.0 69.5
036-E 82 56.5 70.0 73.5 75.5 74.5 71.0 65.0
042-A 82 58.0 69.5 73.0 71.5 69.5 68.0 63.5
042-B 82 59.0 66.5 68.5 75.5 71.5 73.0 65.5
042-C 82 57.0 69.0 72.5 71.5 69.5 68.0 64.0
048-A 82 58.5 72.5 74.0 77.0 72.5 70.0 65.0
048-B 82 57.0 67.5 72.0 73.0 68.5 67.0 60.5
048-C 82 61.0 69.0 70.0 74.0 75.5 74.5 66.5
060-A 82 57.5 68.0 69.0 72.5 70.5 71.0 70.0
060-B 82 57.5 69.5 75.0 76.0 70.5 69.0 63.0
060-E 82 58.0 64.0 70.0 74.0 72.0 71.0 67.0
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CERTIFICATION APPLIES ONLY
WHEN THE COMPLETE SYSTEM
IS LISTED WITH ARI.
REGISTERED QUALITY SYSTEM
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