Trane A4AC3018A1000A Installer's Manual page 19

STEP 2 - Determine the final subcooling value using total Line Length and Lift measured in STEP 1 and the charts below.
1.5 Ton 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 ]
2.5 Ton 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 ]
3.5 Ton 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 ]
5 Ton 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 ]
88-A4AC3001-1C-EN
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
1° Add 4°
1°
Add 2°
Add 1°
Add 1°
1°
80 90 100 110 120 130 140 150
2 Ton 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 80
TOTAL REFRIGERANT LINE LENGTH (FT) - [ includes lift ]
3 Ton Units
SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE)
50
Add 1°
40
30
25 Use Design Subcooling
15
10
0
20 30 40 50 60 70 80
TOTAL REFRIGERANT LINE LENGTH (FT) - [ includes lift ]
4 Ton 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
TOTAL REFRIGERANT LINE LENGTH (FT) - [ includes lift ]
Design Subcooling Value = __________º F
(from nameplate or Service Facts)
Subcooling Correction = __________º F
Final Subcooling Value = __________º F
1°
Add 2°
Add 1°
Add 1°
90 100 110 120 130 140 150
4°
Add 2°
Add 1°
1°
90 100 110 120 130 140 150
Add 4°
Add 2°
Add 1°
Add 1°
90 100 110 120 130 140 150
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