Wells 1222 1222CA Water Heater, Water Level, Dispenser Operation Diagram, A. Start-Up, B. Use

OPERATION

WATER HEATER

Water temperature is sensed by thermobulb inserted into the water tank. Temperature is controlled by a mechanical thermostat.

The setpoint temperature is adjustable by turning the thermostat shaft.

Excessive temperature will trip the hi-limit safety switch, disabling the heating element. The hi-limit will automatically reset when the dispenser cools.

WATER LEVEL

Water level is controlled by an electronic controller. The water level probe senses chassis ground through the water. When the water level is below the probe no ground is sensed. The controller opens the fill solenoid until the water level makes contact with the probe.

Fig. 3 Dispenser Operation Diagram

IMPORTANT:

Be sure tank is filled with water before pressing tank heater switch to ON.

A.START-UP

For initial start-up, or if the dispenser has not been used for an extended period of time:

•Be sure the water supply is properly connected and the water supply valve is turned ON.

•Be sure the WATER TANK IS FILLED.

IMPORTANT: Fill the water tank before energizing tank heater:

1.Be sure TANK HEATER SWITCH is "OFF", then plug unit into an appropriate receptacle. "POWER" light will glow any time unit is connected to electric power.

2.The fill solenoid will open and water tank will begin filling.

3.When the fill solenoid shuts off, open the faucet. Run water until the fill solenoid is energized again, then close the faucet. This will purge all air from the system. When fill solenoid shuts off, tank is filled.

4.Press tank heater switch to "ON". Tank heaters will energize. When the "HOT WATER READY" light glows, water is ready to use.

B. USE

1.Always use a container suitable for hot water.

2.Hold container under faucet. Pull faucet handle to dispense hot water. Release handle to stop dispensing.

712 76580 Owners Manual Hot Water Dispenser

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