Trane CGAM Installation & Operation Manual page 62

Installation - Mechanical
Expansion Tank - Maximum Loop Volume
Expansion tanks supplied as part of the pump package
option will allow loop expansion due to ambient
fluctuations for maximum loop volumes shown in
Table 29 and Table 30, p.
Note: Negative values indicate that a field-installed tank
is required to cover the expansion due to ambient
fluctuations of the fluid in the chiller.
Table 29. Maximum loop volume - gallons (external to the chiller)
Maximum Ambient = 100°F
% Ethylene Glycol
Size Water 10 20
020 479 433 296
026 479 433 296
030 479 433 296
035 479 433 296
040 474 428 291
052 474 428 291
060 474 428 291
070 474 428 291
080 626 565 383
090 626 565 383
100 626 565 383
110 626 565 383
120 626 565 383
130 626 565 383
020 335 289 152
026 335 289 152
030 335 289 152
035 335 289 152
040 338 292 155
052 338 292 155
060 338 292 155
070 338 292 155
080 470 409 226
090 470 409 226
100 425 364 181
110 425 364 181
120 425 364 181
130 425 364 181
62
63.
% Propylene Glycol
30 40 10 20 30
199 148 292 198 139
199 148 292 198 139
199 148 292 198 139
199 148 292 198 139
194 143 286 193 134
194 143 286 193 134
194 143 286 193 134
194 143 286 193 134
253 185 377 252 174
253 185 377 252 174
253 185 377 252 174
253 185 377 252 174
253 185 377 252 174
253 185 377 252 174
55 4 148 54
55 4 148 54
55 4 148 54
55 4 148 54
58 7 150 57
58 7 150 57
58 7 150 57
58 7 150 57
97 29 220 96 17
97 29 220 96 17
52 -16 175 51 -28
52 -16 175 51 -28
52 -16 175 51 -28
52 -16 175 51 -28
Important: Chilled waterside pressure relief valve is
% Ethylene Glycol
40 45 Water 10
WITHOUT BUFFER TANK
108 98 317 293
108 98 317 293
108 98 317 293
108 98 317 293
102 93 312 287
102 93 312 287
102 93 312 287
102 93 312 287
131 119 411 378
131 119 411 378
131 119 411 378
131 119 411 378
131 119 411 378
131 119 411 378
WITH BUFFER TANK
-5 -36 -46 173 149
-5 -36 -46 173 149
-5 -36 -46 173 149
-5 -36 -46 173 149
-2 -34 -43 176 151
-2 -34 -43 176 151
-2 -34 -43 176 151
-2 -34 -43 176 151
-25 -38 254 221
-25 -38 254 221
-70 -83 210 177
-70 -83 210 177
-70 -83 210 177
-70 -83 210 177
designed to open at 226 ft. If relief valve is
opening at lower pressures, verify system
has sufficient expansion tank volume for the
water and/or glycol solution used.
Maximum Ambient = 115°F
% Propylene Glycol
20 30 40 10 20
216 155 120 222 155
216 155 120 222 155
216 155 120 222 155
216 155 120 222 155
211 150 114 216 149
211 150 114 216 149
211 150 114 216 149
211 150 114 216 149
276 194 147 283 194
276 194 147 283 194
276 194 147 283 194
276 194 147 283 194
276 194 147 283 194
276 194 147 283 194
72 11 -24 78 11
72 11 -24 78 11
72 11 -24 78 11
72 11 -24 78 11
75 14 -22 80 13
75 14 -22 80 13
75 14 -22 80 13
75 14 -22 80 13
119 38 -9 127 38
119 38 -9 127 38
74 -7 -54 82 -7
74 -7 -54 82 -7
74 -7 -54 82 -7
74 -7 -54 82 -7
30 40 45
112 87 80
112 87 80
112 87 80
112 87 80
106 82 75
106 82 75
106 82 75
106 82 75
136 104 95
136 104 95
136 104 95
136 104 95
136 104 95
136 104 95
-32 -57 -64
-32 -57 -64
-32 -57 -64
-32 -57 -64
-30 -54 -61
-30 -54 -61
-30 -54 -61
-30 -54 -61
-20 -52 -62
-20 -52 -62
-65 -97 -107
-65 -97 -107
-65 -97 -107
-65 -97 -107
CG-SVX17E-EN