Subcooling Values - Lennox XP21 Series Installation Instructions Manual
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Also See for XP21 Series:
- Installation and service procedure (81 pages) ,
- Installation and service procedure (83 pages) ,
- Installation instructions manual (27 pages)
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Air Handler / Coil Match ups and Targeted Subcooling Values
Listed below are the targeted subcooling and charging values for approved indoor unit air handler / coil match ups. This
information is also listed on the unit charging sticker located on the access panel.
* Indicates amount of charge required in additional to charge shown on unit nameplate. Remember to consider line set
length differences.
Table 4
Model Number
CB(X)27UH−024
CB(X)27UH−030
CBX32M−036 and CBX32MV−036
CBX32M−030 and CBX32MV−24/30
CBX40UHV−024
CBX40UHV−030
CBX40UHV−036
CH23−51
CH33−31
CH33−42
CR33−48
CR33−50/60C
CX34−31
CX34−34/48B
CX34−38
Table 5
Model Number
CB(X)27UH−036
CB(X)27UH−042
CBX32M−036 and CBX32MV−036
CBX32M−048 and CBX32MV−048
CBX40UHV−036
CBX40UHV−042
CBX40UHV−048
CH23−51
CH33−43
CH33−44/48B
CH33−48C
CH33−50/60C
CR33−48
CR33−50/60C
CX34−38
CX34−43
CX34−44/48B
CX34−49
CX34−50/60C
506601−01
XP21−024
Add
Target SC
Charge*
Heat
Cool
lb.
oz.
(+5ºF)
(+1º)
15
4
0
22
7
1
10
22
7
1
10
15
4
0
22
7
1
10
22
7
1
10
22
7
1
10
18
4
0
10
18
4
0
10
18
4
0
10
32
4
0
14
7
1
10
27
4
0
10
22
5
1
25
6
1
XP21−036
Add
Target SC
Charge*
Heat
Cool
lb.
oz.
(+5ºF)
(+1º)
17
5
0
12
5
1
10
17
5
0
12
5
1
10
17
5
0
12
5
1
10
12
5
1
10
19
7
0
11
5
0
11
5
0
11
5
0
12
7
1
32
4
0
11
4
1
15
5
0
11
5
0
19
4
0
10
10
10
1
10
11
5
0
Model Number
0
CB(X)27UH−048
CB(X)27UH−060
CBX32M−048 and CBX32MV−048
0
CBX32M−060 and CBX32MV−060
CBX32MV−068
CBX40UHV−048
CBX40UHV−060
CH23−68
CH33−49C
CH33−50/60C
0
CH33−62D
CR33−50/60
CR33−60D
3
CX34−49
7
CX34−62C
CX34−62D
Model Number
0
CB(X)27UH−060
0
CBX32M−060 and CBX32MV−060
CBX32MV−068
0
CBX40UHV−060
CH23−68
CH33−49C
0
CH33−50/60C
7
CH33−62D
7
CR33−50/60
7
CR33−60D
6
CX34−49
7
CX34−62C
8
CX34−62D
7
7
7
Page 30
Table 6
XP21−048
Target SC
Heat
Cool
(+5ºF)
(+1º)
24
4
14
4
24
4
21
4
14
4
24
4
21
4
14
4
21
4
21
4
20
4
32
4
32
4
21
5
11
4
11
4
Table 7
XP21−060
Target SC
Heat
Cool
(+5ºF)
(+1º)
7
6
10
4
9
4
10
4
10
4
7
5
7
5
9
4
22
5
22
5
10
5
7
5
7
5
Add
Charge*
lb.
oz.
1
0
1
6
1
0
1
14
1
0
1
0
1
14
1
6
1
14
1
14
1
7
0
0
0
0
0
10
1
5
1
5
Add
Charge*
lb.
oz.
0
10
0
0
0
10
0
0
0
10
0
0
0
0
0
7
0
4
0
4
0
4
0
0
0
0
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