Bloomfield 1092, 1091 OPERATION continued, Water Heater, Water Flow, Heat Control Diagram, Open

Models: 1093 1090 1092 1091

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OPERATION (continued)

OPERATION (continued)

WATER HEATER

Water temperature is sensed by an electronic water temperature probe inserted into the water tank. This temperature signal is fed to the controller.

The setpoint temperature is adjustable. The controller sends a command signal to the power board based upon a comparison between the setpoint temperature and actual temperature. See page 15.

The power board energizes the heating elements based on the command signal from the controller.

Excessive temperature will trip the hi-limit safety switch. The hi-limit will automatically reset when the brewer cools.

WATER FLOW

POUR-OVER FEATURE

Fig. 5 Heat Control Diagram

75908 Owners Manual E.B.C. Dual Airpot/Thermal Brewer

Pouring any amount of water into the pour-over opening and into the basin pan forces an identical amount of heated water out of the tank and through the spray head.

AUTOMATIC OPERATION

Pressing the BREW key energizes the solenoid valve, allowing water from an external water supply to flow into the water tank. The incoming water forces heated water out of the tank to perform the brew.

The solenoid uses a flow control device so that flow is consistent between 20 p.s.i. and 90 p.s.i.

The length of time the solenoid is open is controlled by the time setting of the controller. See page 18.

After the solenoid closes, water will continue to flow to the brew chamber until

the water level in the tank falls below the brew pickup, breaking the siphon.

HOT WATER FAUCET

The faucet water coil is submerged in the hot water tank and draws heat from the brew water. Water going to the water coil is not controlled by the solenoid valve.

Hot water is provided at the faucet, at supply water pressure, any time the faucet shut-off valve is

OPEN.

645

Fig. 6 Water Flow Diagram

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Bloomfield 1092 OPERATION continued, Water Heater, Heat Control Diagram, Water Flow Diagram, Pour-Overfeature, Open