18-BC89D1-1L-EN
21
Subcool Charging Correction Charts
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9$5,$%/( 63((' 287'225 81,76 5(48,5( 7+( ,1'225
81,7 %( &21),*85(' )25 &)0721
Figure 2.
Subcool Charging Corrections — 2.0 Ton
2.0 TON SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE)
TOTAL REFRIGERANT LINE LENGTH (FEET)
Add 1°
Add 1°
Use Design Subcooling
Add 2°
70
80
90
100 110 120 130 140 150
60
50
40
30
20
50
40
30
25
15
10
0
RE
FR
IG
ER
AN
T LI
NE
LI
FT
(F
EE
T)
Figure 3.
Subcool Charging Corrections — 3.0 Ton
3.0 TON SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE)
TOTAL REFRIGERANT LINE LENGTH (FEET)
Add 1°
Add 1°
Use Design Subcooling
Add 2°
70
80
90
100 110 120 130 140 150
60
50
40
30
20
50
40
30
25
15
10
0
RE
FR
IG
ER
AN
T L
IN
E L
IFT
(F
EET
)
Figure 4.
Subcool Charging Corrections — 4.0 Ton
4.0 TON SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE)
TOTAL REFRIGERANT LINE LENGTH (FEET)
Add 1°
1°
1°
1°
Add 1°
Use Design Subcooling
Add 2°
70
80
90
100 110 120 130 140 150
60
50
40
30
20
50
40
30
25
15
10
0
RE
FR
IG
ER
AN
T L
IN
E L
IFT
(F
EET
)
Figure 5.
Subcool Charging Corrections — 5.0 Ton
5.0 TON SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE)
NOTE: 150 ft. length is approved ONLY with 7/8” vapor lines.
1°
1°
TOTAL REFRIGERANT LINE LENGTH (FEET)
Add 1°
Add 1°
Add 1°
Use Design Subcooling
Add
2°
Add 4°
70
80
90
100 110 120 130 140 150
60
50
40
30
20
50
40
30
25
15
10
0
REFRIGERANT LINE LIFT (FEET)
HP: 1-1/8” Vapor Line Limit
AC: 1-1/8” Vapor Line Limit
Refrigerant Charging Chart
5$ 5()5,*(5$17 &+$5*,1* &+$57
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