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STEP 2 - Determine the final subcooling value using
total Line Length and Lift measured in STEP 1 and
the charts below.
018 & 030 Models
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
TOTAL REFRIGERANT LINE LENGTH (FT) - [ includes lift ]
024, 036 & 042 Models
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
TOTAL REFRIGERANT LINE LENGTH (FT) - [ includes lift ]
048 & 060 Models
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
TOTAL REFRIGERANT LINE LENGTH (FT) - [ includes lift ]
16
1°
Add 2°
Add 1°
Add 1°
1°
70
80
90 100 110 120 130 140 150
4°
Add 1°
Add 2°
Add 1°
1°
70
80
90 100 110 120 130 140 150
1°
Add 4°
1°
Add 2°
Add 1°
Add 1°
1°
70
80
90 100 110 120 130 140 150
R-454B REFRIGERANT CHARGING CHART
DESIGN SUBCOOLING (
LIQUID
8
9
10
TEMP
( ° F)
LIQUID GAGE PRESSURE (PSI)
170 172 175 178 181 184 187
55
184 187 190 194 197 200 203
60
200 203 206 210 213 217 220
65
217 220 223 227 230 234 238
70
234 238 241 245 249 252 256
75
252 256 260 264 268 272 276
80
272 276 280 284 288 292 297
85
292 297 301 305 309 314 318
90
314 318 323 327 332 336 341
95
336 341 346 351 355 360 365
100
360 365 370 375 380 385 390
105
385 390 396
110
412 417 422 428 433 439 445
115
439 445 450 456 462 468 474
120
468 474 480 486 492 498 504
125
Design Subcooling Value = __________º F
(from nameplate or Service Facts)
Final Subcooling Value = __________º F
Subcooling Correction = __________º F
°
F)
11
12
13
14
401
406 412 417
88-A5AC5001-1A-EN
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