Bryant 551B Installation Instructions Manual page 34

Table 14 — Evaporator-Fan Motor Efficiency
MOTOR 551B
024, 036, 048
060
072
*Single-phase/3-phase.
NOTE: Convert watts to bhp using the following formula:
watts input x motor efficiency
bhp =
746
1. Values include losses for filters, unit casing, and wet coils. See Table 12 and 13 and Fig. 36 for accessory/FIOP static pressure
information.
2. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using the
fan motors up to the ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected.
See Table 10 and 11 on this page for additional information.
3. Use of a field-supplied motor may affect wire sizing. Contact your Bryant representative to verify.
4. Interpolation is permissible. Do not extrapolate.
5. Performance includes clean filter and wet coil.
Table 14—Fan Performance 551C 024 — Vertical Discharge Units; Standard Motor (Belt Drive)**
AIRFLOW AIRFLOW
0.1
(Cfm) (Cfm)
Rpm
600
500
700
529
800
547
900
570
1000
599
EFFICIENCY
75
74/84*
84
GENERAL FAN PERFORMANCE NOTES
EXTERNAL STATIC PRESSURE (in. wg)
0.2 0.4
Bhp Rpm Bhp Rpm
0.08 531 0.08 607
0.09 567 0.09 633
0.1 592 0.12 660
0.13 620 0.14 691
0.15 650 0.16 717
0.6 0.8
Bhp Rpm Bhp Rpm
0.14
713 0.21 788
0.16 739 0.24 816
0.19 761 0.27 845
0.22 793 0.32 870
0.26 818 0.36 894
34
1.0
Bhp Rpm Bhp
878 0.37
0.29
902 0.41
0.32
937 0.47
0.37
957 0.53
0.42
981 0.58
0.47