Hopper Delay Board - Bunn HC-2 Operating & Service Manual

SERVICE (cont.)

HOPPER DELAY BOARD

FIG. 13 HOPPER DELAY BOARD
Location
The hopper delay board is located on the left
front side of the dispenser base just behind the front
panel.
Test Procedures:
1. Disconnect the dispenser from the power source.
2. Disconnect the white and black wires of the hopper
delay board harness from the main wiring har-
ness.
3. Check the voltage across the white and black wires
of the main wiring harness with a voltmeter. Con-
nect the dispenser to the power source. The indi-
cation must be:
a) 120 volts ac for two wire 120 volt models.
b) 120 volts ac for three wire 120/208 volt or 120/
240 volt models.
c) 240 volts ac for two wire 240 volt models.
4. Disconnect the dispenser from the power source.
If voltage is present as described, proceed to #5.
If voltage is not present as described, refer to the wir-
ing diagram and check the dispenser wiring harness.
5. Reconnect the white and black wires of the hop-
per delay board harness to the main harness.
6. Check the voltage across the terminals on the
auger motor with a voltmeter. Press and hold the
appropriate dispense switch. Connect the dis-
penser to the power source. After a delay of .7
seconds the indication must be:
a) 120 volts ac for two wire 120 volt models.
b) 120 volts ac for three wire 120/208 volt or 120/
240 volt models.
c) 240 volts ac for two wire 240 volt models.
7. Disconnect the dispenser from the power source.
If voltage is present as described the hopper delay
board is operating properly.
If voltage is not present as described, replace the hop-
per delay board.
Removal and Replacement:
1. Disconnect the eight pin plug from the hopper
delay board.
2. Remove the two #8-32 keps nuts securing the
hopper delay board mounting bracket to the dis-
penser base.
3. Remove hopper delay board mounting bracket
P1199.45
with hopper delay board and shield attached.
4. Remove the two #8-32 screws securing the hop-
per delay board to the mounting bracket and dis-
card the delay board.
5. Install new delay board on the mounting bracket
with shield between the bracket and the delay
board using two #8-32 screws.
6. Install mounting bracket with hopper delay board
and shield over the studs on the dispenser base,
secure with two #8-32 keps nuts.
7. Reconnect the eight pin connector to the hopper
delay board.
22 27591 031597