OPERATION AND SERVICE

OPERATION AND SERVICE

SEQUENCE OF OPERATION

1.Call for heat is activated when temperature sensed from Thermistor Probes falls below the Thermostat setting.

2.Blower (Draft Inducer) is energized.

3.Ignition Control Board verifies that the Blower Prover Switch is closed and that the Blower (Draft Inducer) is operating.

4.Igniter is energized.

5.Gas Valve is energized and burners ignite

6.Ignition Control Board verifies flame at burners.

7.Water is heated to Thermostat set point.

8.Gas Valve is de-energized.

9.Blower runs for purge period and is de-energized.

10.Ignition Control Board goes into standby mode and Blower Prover Switch Opens.

Blower (Draft Inducer)

Thermistors

(probes)

Main Gas

Valve

Main

Hot Surface Igniter

Burner

(Not Shown)

Figure 9

Servicing should only be performed by a Qualified Service Agent

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American Water Heater (A)BCG38T500-8P, (A)BCG385T500-8N manual Operation and Service, Sequence of Operation

(A)BCG38T500-8P, (A)BCG385T500-8N specifications

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