A.O. Smith 120 through 250 Series User Manual

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Service Handbook

Cyclone XHE®

Extra-HighThermal Efficiency

M O D E L S C O V E R E D

BTH Models 120 through 250

Series 960 through 967, 970 and 973

Part No. TC-044R6• Printed in the U.S.A. • 1105