Dayton 3E462, 3VH34, 3VH37 Lighting Instructions, Shutdown Instructions, Sequence of Operation

Dayton Installation, Operation, Maintenance and Parts Manual

Models 3E132 thru 3E134, 3E460 thru 3E462, 5VD57 thru 5VD66, 3VH34 thru 3VH37

3.0 Operation

Upon satisfactory completion of the electrical supply and purging of the gas supply line to the heater(s), follow the lighting instructions on the heater’s rating label to put the heater into operation.

!WARNING

Do not atempt to ignite heater by hand. Failure to comply could result in personal injury, property damage, explosion, fire or death.

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Lighting Instructions

1.Rotate the heater’s valve knob to the “ON” position.

2.Close electrical circuit (typically the thermostat).

3.If the heater fails to light, turn off gas, open electrical circuit and wait 5 minutes before repeating the above steps.

Shutdown Instructions

1.Open electrical circuit.

2.Rotate the heater’s valve knob to the “OFF” position.

Sequence of Operation

Starting Circuit: Upon a call for heat, voltage is applied to L1 and Neutral. After a pre-purge, the spark electrode is energized and the gas valve opens. The trial for ignition is 15 seconds. If flame is not sensed, the heater will attempt two more times to reignite.

Running Circuit: After ignition, the sensing electrode monitors the burner flame. If sense of flame is lost, the control immediately acts to reignite the gas-air mixture. If flame sense is not established within 15 seconds, the heater will attempt two additional ignition sequences before proceding to hard lockout. The control can be reset by briefly interrupting the power source.

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