Bunn DUAL - Dispense Valve Service Procedures; Dispense Valve Location; Dispense Valve Test Procedures; Dispense Valve Removal and Replacement

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SERVICE (cont.)
LEVEL CONTROL BOARD AND LEVEL PROBE (cont.)
b.) 200 to 240 volts ac for two wire 200 or 240 volt
models after a delay of approximately 1 second.
15. Move the probe's flat end to the brewer housing.
The indication must be 0.
16. Move the probe's flat end away from the brewer
housing. The indication should again be:
a.) 120 volts ac for two wire 120 volt models, three
wire 120/208 volt models and three wire 120/240
volt models.
b.) 200 to 240 volts ac for two wire 200 or 240
volt models.
17. Disconnect the brewer from the power source.
If voltage is present as described, reinstall the probe,
the level control board and level probe are operating
properly.
If voltage is not present as described, check the pink
probe wire.
Removal and Replacement:
1. Remove all wires from the level control board.
2. Remove two #8-32 slotted head screws holding
level control board to component bracket.
3. Install the new level control board to the component
bracket. Make certain that the lockwashers are
between the level control board and the component
bracket.
4. Refer to Fig. 19 when reconnecting the wires.
P789
T4PNKtoProbe
T3 WHI to Terminal Block (White
Insert on 120V Two Wire, 120/208V
or 120/240V Three Wire Brewers)
T3 RED to Terminal Block (Red Insert
on 200V or 240V Brewers)
T2 BLU to Overflow Protection Switch
T1 VIO to Solenoid Coil
FIG. 19 LIQUID LEVEL CONTROL BOARD
TERMINALS
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