Carrier 50FCQ 04-07 Series Service And Maintenance Instructions page 64

1. Interpolation is permissible. Do not extrapolate.
2. External static pressure is the static pressure difference
between the return duct and the supply duct plus the static
pressure caused by any FIOPs or accessories.
3. Tabular data accounts for pressure loss due to clean filters,
unit casing, and wet coils.
4. Factory options and accessories may effect static pressure
losses. Selection software is available, through your salesper-
son, to help you select the best motor/drive combination for
your application.
5. The fan performance tables offer motor/drive recommenda-
tions. In cases when 2 motor/drive combinations would work,
Carrier recommends the lower horsepower option.
6. For information on the electrical properties of Carrier motors,
please see the Electrical Data section of the product data book
for this model and size.
APPENDIX C — FAN PERFORMANCE
GENERAL FAN PERFORMANCE NOTES
64
7. For more information on the performance limits of Carrier
motors, see the application data section of the product data
book for this model and size.
8. The EPACT (Energy Policy Act of 1992) regulates energy
requirements for specific types of indoor fan motors. Motors
regulated by EPACT include any general purpose, T-frame
(3-digit, 143 and larger), single-speed, foot mounted,
polyphase, squirrel cage induction motors of NEMA
(National Electrical Manufacturers Association) design A
and B, manufactured for use in the United States. Ranging
from 1 to 200 hp, these continuous-duty motors operate on
230 and 460 volt, 60 Hz power. If a motor does not fit into
these specifications, the motor does not have to be replaced
by an EPACT compliant energy-efficient motor. Variable-
speed motors are exempt from EPACT compliance
requirements.