Lennox XP14 Elite Series Installation Instructions Manual page 18
Xp14 elite series heat pumps
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Also See for XP14 Elite Series:
- Installation instructions manual (26 pages) ,
- Unit information (23 pages) ,
- Brochure & specs (4 pages)
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Use
!___
___ cooling
mode
_
60°F (15°C) -
+use
_I
heating
mode
Table 7. Adding Charge per Indoor Unit Match using Subcooling
Method
1 Check the airflow as illustrated in figure 23 on page 16 to be sure the indoor airflow is as
required. (Make any air flow adjustments before continuing with the following procedure.)
2
Measure outdoor ambient temperature; determine whether to use cooling
mode or
heating
mode to check charge.
3 Connect gauge set.
4
Check Liquid and Vapor line pressures. Compare pressures with Normal Operating
Pressures table 5, ( Table 5 is a general guide. Expect minor pressure variations.
Significant differences may mean improper charge or other system problem. )
5 Set thermostat for heat/cool demand, depending on mode being used:
Using cooling mode--When
the outdoor ambient temperature is 60°F (15°C) and above.
Target subcooling values in table below are based on 70 to 80°F (21-27°C) indoor return
air temperature; if necessary, operate heating to reach that temperature
range; then set
thermostat to cooling mode setpoint to 68°F (20°C). When pressures have stabilized,
continue with step 6.
Using heating mode--When
the outdoor ambient temperature is below 60°F (15°C).
Target subcooling values in table below are based on 65-75°F (18-24°C) indoor return air
temperature; if necessary, operate cooling to reach that temperature
range; then set
thermostat to heating mode setpoint to 77°F (25°C). When pressures have stabilized,
continue with step 6.
9 Compare SC ° results with table below, being sure to note any additional charge for line
set and/or match-up.
10 If subcooling value is greater than shown in table, remove refrigerant; if less than shown,
add refrigerant.
11 If refrigerant is added or removed, repeat steps 5
Subcool Target
INDOOR
HEAT
Cooling
Heating
MATCH-UP:,..O.,.PUMP
I +°F1 I I°F1
CBX27UH-018/024
13
7
CBX32MV-018/024
15
7
*Add
charge
•
+
o
8
o
o
Subcool
Target
INDOOR
HEAT
Cooling
Heating
MATCH-UP
PO+
CX34-31A/B
11
6
CX34-38A/B
11
6
CX34-43B/C
15
11
I
I ll'3 ,+"I
I
I llm =.)
CH23-41
16
8
0
2
CBX26UH-024
25
7
0
0
CBX26UH-036
26
5
CBX27UH-018/024
15
8
1
2
CBX26UH-037
25
4
CBX32M-018/024
16
8
0
14
CBX27UH-036
13
6
CBX32M-030
15
8
1
3
CBX32M-036
13
6
CBX32MV-018/024
16
8
0
14
CBX32M-042
13
6
CBX32MV-024/030
15
8
1
2
CBX32MV-036
13
6
CH33-42B
14
11
1
10
CBX32MV-048
11
8
CH33-36A
16
8
1
0
C33-44C
13
6
CH33-36C
16
8
0
4
CH33-50/60C
11
8
CR33-30/36A/B/C
25
7
0
2
CH33-44B
13
6
CX34-25A/B
16
8
0
14
CH33-48B
13
6
CX34-31A/B
15
8
1
3
CR33-50/60C
25
4
CX34-36A/B/C
16
8
1
8
CR33-48B/C
25
5
CX34-38A/B
14
11
2
2
CX34-49C
13
6
CX34-43B/C,
-50/60C
13
6
CH23-41
11
6
0
8
CX34-38A/B,
-44/48C
13
6
0H23-51
6
6
112
_II
CBX26UH-024
30
8
0
6
CH23-68
20
9
CBX26UH-030
29
8
2
3
CBX26UH-042
27
6
CBX27UH-030
11
6
2
4
CBX27UH-042
12
6
CBX32M-030
11
6
1
6
CBX32M-048
12
6
CBX32M-036
11
6
2
4
CBX32MV-048
12
6
CBX32MV-024/030
11
6
1
6
CH33-62D
12
6
CBX32MV-036
11
6
2
4
CH33-50/60C
12
6
C33-44C
11
6
2
3
CH33-60D
12
6
CH33-36C
11
3
0
0
CR33-50/60C,-60D
26
6
CH33-42B
6
6
1
12
CBX33-042,-048
12
7
CR33-30/36A/B/C
30
8
0
8
CBX33-060
12
6
*Add charge = Extra match-up amount required in addition to charge indicated on Heat Pump nameplate
ences from 15 feet).
through 10 to verify charge.
Subcool
Target
*Add
INDOOR
HEAT
Cooling
Heating
*Add
charge
MATCH-UP
PUMP
I±5°F1
Ill°F1
charge
1
6
CX34-62C,
-62D
12
6
0
9
2
3
CX34-49C
12
6
0
7
2
14
CX34-60D
12
6
0
4
0
0
CH23-68
20
9
2
9
1
9
CBX26UH-048
8
7
1
9
0
3
CBX27UH-048
11
8
1
2
0
2
CBX32M-048,-060
11
8
1
2
0
3
CBX32MV-048,
-060
11
8
1
2
0
3
CBX32MV-068
10
7
1
12
2
5
CH33-50/60C
11
8
1
1
0
0
CH33-62D
10
7
1
14
2
5
CH33-60D
11
8
0
0
1
7
CR33-50/60C
35
5
0
0
1
8
CR33-60D
37
6
0
0
1
15
CBX33-048,
-060
12
8
1
2
0
9
CX34-62C,
-62D
10
7
1
7
2
4
CX34-49D
11
8
0
14
1
8
CX34-60D
11
8
0
0
I ll_ [,+
Immmm
CH23-68
12
5
0
0
0
13
CBX26UH-048
12
7
1
0
0
0
CBX26UH-060
14
4
0
0
0
8
CBX27UH-060
12
5
0
0
0
7
CBX32M-048,-060
12
5
0
0
0
8
CBX32MV-048,
-060
12
5
0
0
0
10
CBX32MV-068
12
7
1
0
0
7
CH33-50/60C
12
5
0
0
0
4
CH33-62D
12
5
0
0
0
4
CBX33-060
12
8
0
0
0
4
CX34-62C,-62D
12
7
1
0
0
7
(remember
to also add any charge required for line set differ-
Page 18
505244M 04/08
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