Bloomfield 8774 - Manual (Page 15)

SERVICING INSTRUCTIONS (continued)
IMPORTANT:
Water pressure must be
between 20 p.s.i and 90 p.s.i.
flowing pressure. If water
pressure exceeds this value,
or if water pressure varies
greatly, a pressure regulator
must be installed in the water
supply line.
IMPORTANT:
Before setting assembly into
tank, make sure tank lid gasket
is properly seated on flange of
lid. DO NOT OVER-TIGHTEN.
IMPORTANT:
When mounting thermostat, be
sure to insert sensing bulb to
the bottom of the bulb well.
Tighten capillary lock nut only
enough to ensure no water
leakage. Excessive tightening
is not necessary.
IMPORTANT:
When replacing heating
element, also replace seal
gaskets.
TIMER ADJUSTMENT (AUTOMATIC BREWERS ONLY)
The amount of water dispensed automatically during a brew cycle
is controlled by the timer.
Place empty airpot or thermal server under brew chamber. Press
BREW button. Brewer should dispense one container of water.
To adjust amount:
Remove brew chamber and button plug. Adjust knob on timer;
clockwise increases time. Run several cycles to check amount of
water delivered. Replace button plug.
REMOVE TANK LID ASSEMBLY
Unplug brewer or turn circuit breaker OFF. Turn OFF water
supply. Remove top panel. Pull vent tube and inlet elbow out of
basin pan.
On automatic models, pull water inlet tube out of basin pan.
Remove basin pan.
On models with faucet, disconnect inlet pipe at faucet shut-off
valve and outlet pipe at faucet.
Disconnect all wiring from thermostat, hi-limit, and heating
element.
Loosen center screw on tank hold-down bracket. Remove
hold-down bracket by sliding short slotted end off of locking stud
and lifting it off. Remove cover assembly by lifting it straight up.
Reassemble in reverse order.
REPLACE THERMOSTAT (COTHERM)
Unplug brewer or turn circuit breaker OFF. Turn OFF water
supply. Remove top panel.
Disconnect all wiring from thermostat only. Loosen and free jam
nut from pass-thru fitting securing temperature sensing bulb.
Remove two screws holding thermostat to bracket.
Lift out thermostat, sensing bulb and thermostat gasket.
Reassemble in reverse order. BE SURE the bulb well is fully
seated in the tank fitting, and that the temperature sensing bulb is
inserted to the very bottom of the bulb well.
REPLACE HEATING ELEMENT
Remove tank lid assembly per above.
Remove two hex nuts holding element to cover. Pull element
from mounting holes.
Reassemble in reverse order.
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