A.O. Smith BT- 65 User Manual
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M E D I U M T E M P E R A T U R E
T W O H E A T E R S W I T H O R W I T H O U T
B U I L D I N G R E C I R C U L A T I O N
RETURN LINE
(IF USED)
CHECK
VALVE
GAS FIRED TANK TYPE
BT-65, BT-80, BT-100
t*TEMPERATURE AND
PRESSURE RELIEF
VALVE
r-
- - V
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CAUTION: IF BUILDING COLD WATER SUPPLY HAS
A BACKFLOW PREVENTER, CHECK
VALVE OR WATER METER WITH CHECK
VALVE, PROVISIONS FOR THERMAL
EXPANSION OF WATER IN THE HOT
WATER SYSTEM MUST BE PROVIDED.
INSTALL IN ACCORDANCE WITH LOCAL CODES.
* PIPE RELIEF VALVE TO OPEN DRAIN.
t
AVAILABLE FROM A. O. SMITH.
**OPTIONAL FOR HEATER ISOLATION.
Revised March 1997 (Reviewed October 2003)
Printed in the U.S.A.
© A. O. Smith Corp. 1997
A 119.0