WATER HEATER
Water temperature is sensed by a thermobulb inserted into the water tank. This temperature signal is fed to the thermostat, which controls line power to the heating element.
The setpoint temperature is adjustable at the thermostat.
THERMOSTAT
The element is protected from over- temperature by a
OPERATION (continued)
THERMOSTAT
THERMOBULB
HEATER
ELEMENT
Fig. 5 Heat Control Diagram
WATER FLOW
POUR-OVER FEATURE
Pouring any amount of cold water into the
AUTOMATIC OPERATION
Pressing BREW button energizes the solenoid valve, allowing water from an external water supply to flow into the basin pan and then into the hot water tank. This forces an identical amount of hot water out of the tank and through the spray head into the brew chamber
The solenoid uses a flow control device so that flow is consistent between 20 p.s.i. and 90 p.s.i.
Length of time the solenoid is open is controlled by the timer.
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.
The faucet is at supply water pressure any time the faucet
Fig. 6 Water Flow Diagram
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