163 performance data (cont), Fan rpm at motor pulley settings, Evaporator fan motor performance – Bryant DURAPAC 551B User Manual
Page 163: Evaporator-fan motor efficiency

163
PERFORMANCE DATA (cont)
FAN RPM AT MOTOR PULLEY SETTINGS*
*Approximate fan rpm shown.
†Indicates standard drive package.
**Indicates alternate drive package.
††Due to belt and pulley style, pulley cannot be set to this number of
turns open.
EVAPORATOR FAN MOTOR PERFORMANCE
LEGEND
EVAPORATOR-FAN MOTOR EFFICIENCY
NOTE: All indoor-fan motors 5 hp and larger meet the minimum efficiency re-
quirements as established by the Energy Policy Act of 1992 (EPACT) effective
October 24, 1997.
551A
0
1
/
2
1
1
1
/
2
2
2
1
/
2
3
3
1
/
2
4
4
1
/
2
5
5
1
/
2
6
155 (208/230, 460 v)†
††
††
††
††
1064
1035
1006
978
949
920
891
863
834
155 (208/230, 460 v)**
††
††
††
††
1426
1393
1360
1327
1294
1261
1227
1194
1161
180†
††
††
††
††
1021
1002
984
965
947
928
910
891
873
180**
††
††
††
††
1200
1178
1156
1134
1112
1091
1069
1047
1025
UNIT
551A
NOMINAL
HP
VOLTAGE
MAX
WATTS
EFF.
%
MAX
BHP
MAX
BkW
MAX
AMPS
155
(Standard
Motor)
2.9
208
2700
85.8
3.13
2.34
9.46
2.9
230
2700
85.8
3.13
2.34
8.6
2.9
460
2700
85.8
3.13
2.34
4.3
155
(Optional
Motor)
3.7
208
3775
85.8
4.38
3.27
10.5
3.7
230
3775
85.8
4.38
3.27
10.5
3.7
460
3775
85.8
4.38
3.27
4.8
180
5
208
5180
87.5
6.13
4.57
15.8
5
230
5180
87.5
6.13
4.57
15.8
5
460
5180
87.5
6.13
4.57
7.9
BHP
—
Brake Horsepower
BkW
—
Brake Kilowatts
MOTOR
HORSEPOWER
MOTOR EFFICIENCY
(%)
2.9, 3.7
85.8
5.0
87.5
Fan Performance Using Accessory Power Exhaust
(551A155,180)
NOTE: The CRRFCURB013A00 high static regain adapter accessory may be
used to provide horizontal supply/return.
NOTE: The CRRFCURB013A00 horizontal supply/return adapter accessory
improves 551A155,180 fan performance by increasing external static pressure
by amount shown above. To convert from in. wg to Pa use the following formula:
in. wg x 249.1 = Pa
Horizontal Supply/Return Fan Performance with CRRFCURB013A00
High Static Regain Adapter
0
T
F
Q
0
04
-0
12
55
1A1
55-
18
0