Trane 5TWR5 - Page 15

18-BC118D1-1A-EN 15
STEP 2 - Determine the final subcooling value using
total Line Length and Lift measured in STEP 1 and
the charts below.
Design Subcooling Value = __________º F
(from nameplate or Service Facts)
Subcooling Correction = __________º F
Final Subcooling Value = __________º F
For 018A - 060A Models:
036A Models
SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE)
TOTAL REFRIGERANT LINE LENGTH (FEET)
REFRIGERANT LINE LIFT (FEET)
10 20 25 30 40 60
Use Design Subcool Value
60
50
40
30
25
20
15
10
0
Add 5°
Add 4°
Add 2°
Add 3° of Subcooling
Add 1° of Subcooling
042A Models
Add 6°
Add 5°
TOTAL REFRIGERANT LINE LENGTH (FEET)
REFRIGERANT LINE LIFT (FEET)
10 20 25 30 40 60
Add 3° of Subcooling
Add 2° of Subcooling
Add 1° of Subcooling
Use Design Subcool Value
60
50
40
30
25
20
15
10
0
SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE)
048A Models
Add 6°
TOTAL REFRIGERANT LINE LENGTH (FEET)
REFRIGERANT LINE LIFT (FEET)
10 20 25 30 40 60
Add 4° of Subcooling
Add 3° of Subcooling
Add 2° of Subcooling
Add 1° of Subcooling
Use Design Subcool Value
60
50
40
30
25
20
15
10
0
SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE)
Add 6°
TOTAL REFRIGERANT LINE LENGTH (FEET)
REFRIGERANT LINE LIFT (FEET)
10 20 25 30 40 60
Add 5° of Subcooling
Add 4° of Subcooling
Add 3° of Subcooling
Add 2° of Subcooling
Add 1° of Subcooling
Design
60
50
40
30
25
20
15
10
0
SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE)
060A Models
030A Models
Add 4°
Add 3°
TOTAL REFRIGERANT LINE LENGTH (FEET)
REFRIGERANT LINE LIFT (FEET)
10 20 25 30 40 60
Add 2° of Subcooling
Add 1° of Subcooling
Use Design Subcool Value
60
50
40
30
25
20
15
10
0
SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE)
018A Models
Add 3°
Add 2°
TOTAL REFRIGERANT LINE LENGTH (FEET)
REFRIGERANT LINE LIFT (FEET)
10 20 25 30 40 60
Add 1° of Subcooling
Use Design Subcool Value
60
50
40
30
25
20
15
10
0
SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE)
024A Models
Add 4°
Add 2°
TOTAL REFRIGERANT LINE LENGTH (FEET)
REFRIGERANT LINE LIFT (FEET)
10 20 25 30 40 60
Add 1° of Subcooling
Use Design Subcool Value
60
50
40
30
25
20
15
10
0
SUBCOOL CHARGING CHART CORRECTIONS TABLE (FOR LINE LENGTH AND RISE)
8 9 10 11 12 13 14
170 172
175 178 181 184 187
184 187
190 194 197 200 203
200
203 206 210 213 217 220
217
220 223 227 230 234 238
234
238 241 245 249 252 256
252
256 260 264 268 272 276
272
276 280 284 288 292 297
292
297 301 305 309 314 318
314
318 323 327 332 336
341
336
341 346 351 355 360 365
360
365 370 375 380 385 390
385
390 396 406 412 417
412
417 422 428 433 439 445
439
445 450 456 462 468 474
468
474 480
486
492 498 504
R-454B REFRIGERANT CHARGING CHART
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125
LIQUID
TEMP
(
°
F)
DESIGN SUBCOOLING (
°
F)
LIQUID GAGE PRESSURE (PSI)
401