—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
M
A
N
U
F
A
C
T
U
R
E
R
CE
RT
IFIED
TO ARI
AS
C
O
M
P
L
Y
IN
G
W
IT
H
A
RI
STANDARD
21
0
U
N
IT
A
R
Y
AIR
CO
N
D
IT
IO
N
IN
G
EQUIPMENT
CERTIFICATION APPLIES ONLY
WHEN THE COMPLETE SYSTEM
IS LISTED WITH ARI.
REGISTERED QUALITY SYSTEM
