Bunn Single TF DBC, Installation & Operating Manual

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Page 34
13. To test LEFT FUNNEL LOCK , press ON . If the
funnel lock is functional, the lock will come down
to hold the funnel in place.
14. Press OFF to retract the funnel lock.
15. Press NEXT to advance to the next component to
be tested.
16. Follow steps 7 through 15 to test the right side
components.
17. To test REFILL VALVE , press ON . If the refill valve
is functional, the sound of the valve operating will
be heard.
18. Press OFF to end testing of refill valve.
19. Press NEXT to advance to the next component to
be tested.
20. To test TANK HEATERS , connect a voltmeter across
each of the tank heaters to check for voltage.
21. Press ON . The correct voltage should be present at
the heater terminals.
22. Press OFF to end testing of the tank heaters.
NOTE: The tank heater will automatically turn off if left
on too long.
23. After testing the tank heater, press NEXT to ad-
vance to the next test.
24. The HEATER CONTACTOR is used only on certain
models. Check the machine schematic to see if the
contactor is present. Connect a voltmeter across a
tank heater that is operated by the contactor and
press
ON to check that correct voltage is present.
Press OFF and confirm the voltage is zero.
25. Press NEXT to return to TEST OUTPUTS.
26. To exit SERVICE TOOLS, press and release the
pad located on the front switch panel. This
will return to the MAIN SCREEN .
Procedure to test switches:
This function allows the operator to test the opera-
tion of the individual switches on the front panel.
1. Place brew funnels into rails on both sides of
brewer.
2. Place a server beneath each brew funnel.
3. Press and hold the ® pad until the display reads
SET NEW RECIPES. Release the ® pad. Continue
pressing and releasing the ® pad until SERVICE
TOOLS appears.
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)
SERVICE TOOLS (cont.)
Testing individual components (outputs):
This will allow the operator to test the operation of
individual components and outputs of the brewer. The
components that can be individually tested are as
follows:
Left Brew Valve
Left Bypass
Left Funnel Lock
Right Brew Valve
Right Bypass
Right Funel Lock
Refill Valve
Tank Heaters
Heater Contactor
Procedure to test components (outputs):
1. Place brew funnels into rails on both sides of
brewer.
2. Place a server beneath each brew funnel.
3. Press and hold the ® pad until the display reads
SET NEW RECIPES. Release the ® pad. Continue
pressing and releasing the pad until SERVICE
TOOLS appears.
4. Press YES to run tests on various components and
outputs within the brewer. Pressing NO will exit
this function and advance to the next function
screen.
5. The display should read TEST OUTPUTS.
6. Press and release YES. The display should read
LEFT BREW VALVE.
7. To test LEFT BREW VALVE, press ON. If the brew
valve is functional, water should run from the left
brew side.
8. Press OFF to end flow of water.
9. Press NEXT to advance to the next component to
be tested.
NOTE: To bypass testing any component, press NEXT
to advance to the next one, without testing the previ-
ous component.
10. To test LEFT BYPASS , press ON . If the bypass
valve is functional, water should run from the left
brew bypass.
11. Press OFF to end flow of water.
12. Press NEXT to advance to the next component to
be tested.
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