A.O. Smith 975 Series User Manual
A.O. Smith Water boiler
1
PRINTED IN THE U.S.A. 0206
PART NO. 197177-001
BLOWER/BURNER ASSEMBLY
See Page 7
GAS VALVE
See Page 5
RECIRCULATING SYSTEM
See Page 5
OPERATING CONTROL WIRING
See Page 4
CONTROL PANEL
See Page 3
POWERED ANODE ASSEMBLY
See Page 8
CYCLONE XHE - MODEL BTH-300A/400A
See Page 2
EXHAUST ELBOW, VENT KIT & BLOWER
INTAKE PARTS
See Page 6
COMMERCIAL WATER HEATER PARTS LIST
Model BTH-300A
Model BTH- 400A
Series 974/975
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