DSI Sequence of Operation

• Gas Supply

11˝ W.C to solenoid valve is necessary

 

￿

• 12VDC Battery

Voltage source to water heater

or filtered side

 

of Convertor

 

 

￿

• ON/OFF Switch

It supplies 12VDC to water heater

 

￿

Thermal Cut-OffA one shot heat sensing fuse that’s normally closed and sends power to the thermostat. When tripped by excessive heat (190°F), (i.e. blocked burner or flue tube) it cuts power to the circuit board and shuts down ignition.

 

 

￿

• Thermostat

A normally closed non-adjustable temperature switch that sends current to the circuit

 

 

board. It opens when the water temperature reaches approximately 140°F.

 

 

￿

• Circuit Board

The next step is the direct spark ignition system. For a period of 6-8 seconds the circuit

 

 

board will send voltage to both the gas solenoid valve and the electrodes. If ignition does

 

 

not occur, the board goes into a lock-out condition and the non-ignition light illuminated at

 

 

the ON/OFF switch.

 

 

 

 

 

 

 

 

 

 

 

 

• E.C.O.

A normally closed safety temperature switch that sends voltage to solenoid valve. The switch opens if the water temperature exceeds 180°F.

￿

• Gas Valve

The dual solenoid valve that opens and sends gas to electrodes when a minimum of 10.5 VDC is applied to it.

• Electrodes

Creates a spark to ignite gas. If the electrodes do not sense a flame in 6-8 seconds, a signal is sent to the board to shut the gas valve down and the system goes into safety lock-out.

NOTE: If this situation exists, the ON/OFF switch must be turned off and back on again.

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Atwood Mobile Products 94605 service manual DSI Sequence of Operation

94605 specifications

Atwood Mobile Products 94605 is a robust and reliable solution designed to cater to the needs of RV and trailer enthusiasts. This product has gained considerable attention in the market due to its exceptional build quality, innovative features, and user-friendly design.

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