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PERFORMANCE DATA (cont)
GLYCOL HEATING PERFORMANCE
LEGEND
*
∆
P is the fluid pressure in ft of head.
NOTES:
1. This accessory glycol coil is intended for use with a MINIMUM of 25% glycol solution. It
IS NOT intended for use solely with water due to freeze-up conditions and the resulting
water damage to the conditioned space.
2. Water
∆
= 20 F.
FAN PERFORMANCE — 551A155,180 UNITS
LEGEND
*Standard low-medium static drive range is 834 to 1064 rpm (for 208/230 and 460-v units).
Alternate high-static drive range is 1161 to 1426 (for 208/230 and 460-v units). Other rpms
require a field-supplied drive.
NOTES:
1. Maximum continuous bhp for the standard motor is 3.13 (for 208/230 and 460-v units).
The maximum continuous watts is 2700 (for 208/230 and 460-v units). Do not adjust
motor rpm such that motor maximum bhp and/or watts is exceeded at the maximum
operating cfm.
2. See page 162 for general fan performance notes.
GLYCOL COIL (551A155,180)
Temperature
Entering
Condenser
Air Entering Evaporator — Cfm
4400 5400 7200
Percent Glycol
25 50 25 50 25 50
Edb Ewt Cap Gpm Ldb Cap Gpm Ldb Cap Gpm Ldb Cap Gpm Ldb Cap Gpm Ldb Cap Gpm Ldb
55
200
310 33 120 293 33 116 347 37 115 327 37 111 405 43 107 381 43 104
180
255 27 108 237 27 105 285 30 104 264 30 101 332 35 98 306 35 95
160
200 21 97 181 21 93 223 24 94 202 23 90 259 27 89 233 27 85
70
200
274 29 127 257 29 124 306 32 123 287 33 119 357 38 116 333 38 113
180
218 23 116 201 23 112 244 26 112 224 26 109 284 30 107 259 30 104
160
164 17 104 146 17 100 183 19 101 162 19 98 212 22 97 187 22 94
80
200
249 26 132 233 27 129 279 30 128 260 30 125 325 34 122 302 34 119
180
194 21 121 177 20 117 217 23 117 197 23 114 252 26 113 228 27 109
160
140 15 109 123 14 106 156 16 107 136 16 103 180 18 103 156 19 100
GLYCOL COIL (551A155,180) (cont)
Temperature
Entering
Condenser
Air Entering Evaporator — Cfm
9000
25 50
Edb Ewt Cap Gpm Ldb Cap Gpm Ldb
55
200 453 48 102 425 48 99
180 371 39 93 342 39 90
160 290 31 85 260 30 82
70
200 400 42 111 372 42 108
180 317 34 103 287 33 100
160 237 25 94 208 24 91
80
200 364 39 118 337 38 115
180 281 30 109 254 29 106
160 201 21 101 173 20 78
GLYCOL COIL RATINGS (551A155,180)
Entering
Fluid
Temp (F)
Cfm
4,000 5,000 6,000 8,000 10,000
Gpm
∆
∆∆
∆
P* Gpm
∆
∆∆
∆
P* Gpm
∆
∆∆
∆
P* Gpm
∆
∆∆
∆
P* Gpm
∆
∆∆
∆
P*
200
27 1.2 31 1.5 35 1.8 41 2.4 47 2.9
180
22 0.9 25 1.1 27 1.3 32 1.6 36 2.0
160
16 0.6 19 0.7 20 0.8 24 1.0 27 1.2
Cap —
Btuh × 1000
Edb —
Entering Dry Bulb Temperature (F)
Ewt —
Entering Water Temperature (F)
Gpm —
Gallons Per Minute
Ldb —
Leaving Dry-Bulb Temperature (F)
551A155 WITH STANDARD MOTOR*
Cfm
Available External Static Pressure (in. wg)
0.2 0.4 0.6 0.8 1.0
Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp
3750
753 915 1.05 786 972 1.12 892 1170 1.35 991 1378 1.58 1084 1595 1.83
4000
747 977 1.12 810 1090 1.25 911 1292 1.49 1007 1503 1.73 1097 1723 1.98
4250
741 1041 1.20 835 1220 1.40 932 1426 1.64 1024 1640 1.89 1111 1863 2.14
4500
761 1158 1.33 861 1360 1.56 954 1570 1.81 1043 1788 2.06 1127 2014 2.32
4750
792 1305 1.50 887 1512 1.74 977 1726 1.99 1063 1948 2.24 1145 2177 2.50
5000
823 1464 1.68 915 1676 1.93 1002 1894 2.18 1084 2120 2.44 1164 2352 2.70
5250
855 1635 1.88 943 1852 2.13 1027 2075 2.39 1107 2304 2.65 1184 2539 2.92
5500
887 1819 2.09 972 2041 2.35 1053 2268 2.61 1130 2501 2.88 ———
5750
920 2016 2.32 1002 2242 2.58 1079 2473 2.84 ——————
6000
953 2226 2.56 1031 2457 2.83 1107 2692 3.10 ——————
6250
986 2449 2.82 1062 2685 3.09 —————————
551A155 WITH STANDARD MOTOR* (cont)
Cfm
Available External Static Pressure (in. wg)
1.2 1.4 1.6 1.8 2.0
Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp Rpm Watts Bhp
3750
1172 1822 2.10 1256 2057 2.37 1337 2299 2.64 1414 2549 2.93 ———
4000
1182 1952 2.24 1264 2188 2.52 1343 2432 2.80 1418 2683 3.09 ———
4250
1194 2093 2.41 1274 2332 2.68 1351 2577 2.96 ——————
4500
1208 2247 2.58 1286 2487 2.86 —————————
4750
1223 2412 2.77 1299 2655 3.05 —————————
5000
1240 2590 2.98 ————————————
5250
———————————————
5500
———————————————
5750
———————————————
6000
———————————————
6250
———————————————
Bhp —
Brake Horsepower
FIOP —
Factory-Installed Option
Watts —
Input Watts to Motor
0TFQ004-012
551A155-180