A.O. Smith BTH 120 Series User Manual

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Servicing should only be performed by a Qualied Service Technician
CONTROLS – CONNECTIONS, IGNITER, FLAME SENSOR, SIGHT GLASS,
POWERED ANODES
The connections for the hot surface igniter and the flame sensor are shown below. Also shown is the burner
sight glass. These features are typical for all models.
Flame
Sensor
Hot Surface
Igniter
Mounting Bolts
Burner sight glass
The new Cyclone Xi commercial water heater is equipped with powered anodes. These anodes do not
need replacement. The CCB monitors the current through the anodes and will declare a fault if there is a
disconnected wire or if there is no water in the tank.
Powered anode connection

A.O. Smith BTH 120 Series Specifications

General

Brand	A.O. Smith
Model	BTH 120 Series
Category	Water Heater
Language	English