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14.2 Subcooling Charging in Cooling (Above 55º F Outdoor Temp.)
STEP 1 - Use the refrigerant line total length
and lift measurements from Section 5.3.
Total Line Length = __________ Ft.
Vertical Change (Lift) = __________ Ft.
STEP 2 - Determine the final subcooling value using total Line Length and Lift measured in STEP 1 and the charts below.
018 Units
SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE)
50
40
30
25
Use Design Subcooling
15
10
0
20
30
40
50
60
70
TOTAL REFRIGERANT LINE LENGTH (FT) - [ includes lift ]
030 & 035 Units
SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE)
50
40
30
25
Use Design Subcooling
15
10
0
20
30
40
50
60
70
TOTAL REFRIGERANT LINE LENGTH (FT) - [ includes lift ]
042 Units
SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE)
50
40
30
25
Use Design Subcooling
15
10
0
20
30
40
50
60
70
TOTAL REFRIGERANT LINE LENGTH (FT) - [ includes lift ]
049 Units
SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE)
50
40
30
25
Use Design Subcooling
15
10
0
20
30
40
50
60
70
TOTAL REFRIGERANT LINE LENGTH (FT) - [ includes lift ]
Design Subcooling Value = __________º F
(from nameplate or Service Facts)
Final Subcooling Value = __________º F
14
Add 1°
4°
Add 1°
Add 2°
1°
1°
Add 1°
80
90 100 110 120 130 140 150
1°
Add 2°
Add 1°
Add 1°
1°
80
90 100 110 120 130 140 150
Add 4°
Add 1°
Add 2°
Add 1°
Add 1°
80
90 100 110 120 130 140 150
Add 1°
Add 2°
Add 1°
1°
1°
1°
80
90 100 110 120 130 140 150
024 Units
SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE)
50
1°
Add 1°
40
30
25
Use Design Subcooling
15
10
0
20
30
40
50
60
70
80
90 100 110 120 130 140 150
TOTAL REFRIGERANT LINE LENGTH (FT) - [ includes lift ]
036 & 041 Units
SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE)
50
Add 1°
40
Add 1°
30
25
Use Design Subcooling
15
10
0
20
30
40
50
60
70
80
90 100 110 120 130 140 150
TOTAL REFRIGERANT LINE LENGTH (FT) - [ includes lift ]
048 Units
SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE)
50
1°
1°
40
Add 1°
30
25
Use Design Subcooling
15
10
0
20
30
40
50
60
70
80
90 100 110 120 130 140 150
TOTAL REFRIGERANT LINE LENGTH (FT) - [ includes lift ]
060 & 061 Units
SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE)
1°
50
1°
40
30
25
Use Design Subcooling
15
10
0
20
30
40
50
60
70
80
90 100 110 120 130 140 150
TOTAL REFRIGERANT LINE LENGTH (FT) - [ includes lift ]
Subcooling Correction = __________º F
LIFT
Add 2°
Add 1°
4°
Add 2°
1°
Add 4°
Add 2°
Add 1°
Add 4°
Add 2°
Add 1°
Add 1°
1°
18-AC100D1-5D-EN
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