York CC-Series, Руководство пользователя

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YORK® SINGLE AND TWIN CENTRIFUGAL CABINET FANS, CC-SERIES
5
TYPICAL APPLICATIONS
CC-Series (models CC and CCB) cabinet fan units are versatile in application. They may be used in ventilation, recirculation,
and air conditioning systems as typified by the illustrations below. Dampers, inlet/outlet air diffusers/grilles, cooking appliances, air
conditioning coils and ducting shown are typically furnished by others but in part may be available from YORK® by Johnson Controls.
EXHAUST AIR
SUPPLY AIR (VENTILATION)
CEILING PLENUM AIR / RECIRCULATION
SUPPLY AIR (COOLING / HEATING)
RETURN AIR / RECIRCULATION
SUPPLY AIR (VENTILATION)
MOTOR POWER OUTPUT (BHP)
DRIVE LOSS
(% MOT
OR POWER OUTPUT)
0.3 0.4 0.6 0.8 1 2 3 4 6 8 10 20
30
20
15
10
8
6
4
3
2
1.5
1
Range drive loss for standard belts. Higher fan speeds
tend to have higher drive losses than lower fan speeds
at the same horsepower.
Drive Loss Reference Chart
For totally enclosed, explosion proof, multi-speed and all 1.0
Service Factor motors, fan BHP plus drive losses should not exceed
motor rated HP.
Graph reprinted from AMCA publication 203, with the express written
permission from the Air Movement and Control Association, Inc., 30 West
University Drive, Arlington Heights, IL 60004-1983.
Belt Drive Losses
The AMCA Review Committee has developed the chart shown
below for the purpose of estimating belt drive losses. To calculate
total BHP (including drive losses): Find the BHP of your operating
point on the x-axis on the graph below. Follow the vertical line to
the curves indicating the range of drive losses. Look at the y-axis
on the left and find the drive loss percentage. Calculate the total
BHP by adding the drive loss to the operating point BHP. For
BHP’s below 0.3, use 30%.
BELT DRIVE PERFORMANCE DATA