Thrush Vertical Water CCirculators - Manual

9/08
Peru, IN 46970 (765) 472-3351
www.thrushco.com
Thrush Co., Inc.
P.O. Box 228 * 340 West 8th St.
9636-0200
VERTICAL WATER CIRCULATOR
INSTALLATION & OPERATING INFORMATION
Installing Circulator
Install flanges on pipe before connecting flanges to
circulator casing. Be sure ring gaskets are in place on
casing before drawing up flange bolts.
Lubrication
Oil all three cups before starting and every three months
therafter. Fill motor oil cups with S.A.E. #20 non-detergent
oil. Use S.A.E. #30 non-detergent oil for bracket. For high
temperature or continuous operation, more frequent oiling
will be necessary.
Wiring
Circulator motors have openings for BX connector and two
wiring posts under the terminal cover. Be sure two lead
wires are securely fastened under the terminal nuts. DO
NOT CONNECT SOLID CONDUIT TO CIRCULATOR
MOTOR. Use 18" flexible conduit between the end of the
solid conduit and motor.
Motor Rotation
All motors on Thrush circulators have counter clockwise
rotation looking a shaft end. When looking at motor end,
rotation will be clockwise.
Caution
Mechanical seal life is affected adversely by the presence
of abrasive impurities in the system. One of the most
common abrasives is black iron oxide. Another important
factor in seal life is water treatment. It is recommended
that the chromate content of the system not exceed
250 PPM.