Water Heater - Bloomfield 1883 Owner's Manual

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.
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
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. 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.
Fig. 4 Heat Control Diagram
CONTROL
SOLENOID
E
SOLENOID
BYPASS
CONTROL
SOLENOID
E
FAUCET
SHUT-OFF
VALVE
SOLENOID
BYPASS
Fig. 5 Water Flow Diagram
7
OPERATION (continued)
BREW
TANK
FAUCET
WATER
COIL
TANK
HOT
WATER
IL2683