Bunn ICB-TWIN Guía De Operación
Page 48
PROGRAMMING THE BREWER (cont.)
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.)
SERVICE TOOLS
This function allows the testing of individual components
and the ability to check switches for proper function. This
function also tests the funnel sensor coil’s frequency
(diagnostic tool for troubleshooting purposes only).
This function allows the testing of individual components
and the ability to check switches for proper function. This
function also tests the funnel sensor coil’s frequency
(diagnostic tool for troubleshooting purposes only).
Procedure to test components and outputs:
The following components can be individually tested:
Left Brew Valve
Right Brew Valve
Left Bypass Valve
Right Bypass Valve
Refi ll Valve
Tank Heater Relay
Tank Heater Triac
Left Funnel Lock (Optional)
Right Funnel Lock (Optional)
The following components can be individually tested:
Left Brew Valve
Right Brew Valve
Left Bypass Valve
Right Bypass Valve
Refi ll Valve
Tank Heater Relay
Tank Heater Triac
Left Funnel Lock (Optional)
Right Funnel Lock (Optional)
1. Place a funnel into the rails on both sides of the
brewer.
2. Place a server beneath each funnel.
3. Press and hold the right hidden button until the dis-
3. Press and hold the right hidden button until the dis-
play reads SET LANGUAGE. Press the right hidden
button until the display reads SERVICE TOOLS.
button until the display reads SERVICE TOOLS.
4. Press and release YES. The display should now
read TEST OUTPUTS? Press and release YES to
test individual components and outputs. Pressing
NO will advance to the next programming function,
TEST SWITCHES.
test individual components and outputs. Pressing
NO will advance to the next programming function,
TEST SWITCHES.
5. The display should now read <- <- BREW VALVE.
To test the left brew valve, press ON. If the brew
valve is functional, water should run from the left
funnel.
valve is functional, water should run from the left
funnel.
6. Press
OFF to end the fl ow of water.
7. Press
NEXT to advance to the next component to
be tested.
NOTE: To bypass testing any component, press NEXT
to advance to the next component without testing the
previous one.
to advance to the next component without testing the
previous one.
8. The display should now read <- <- BYPASS VALVE.
To test the left bypass valve, press ON. If the bypass
valve is functional, water should run from the left
funnel.
valve is functional, water should run from the left
funnel.
9. Press
OFF to end the fl ow of water.
10. Press NEXT to advance to the next component to
be tested, <- <- FUNNEL LOCK.
11. To test the left FUNNEL LOCK, press ON. If the
funnel lock is functional, the lock will drop to hold
funnel in place.
funnel in place.
12. Press OFF to retract the funnel lock.
13. Follow steps 5-12 to test the right side compo-
13. Follow steps 5-12 to test the right side compo-
nents.
14. To test the REFILL VALVE, press ON. If the refi ll
valve is functional, the sound of the valve operating
will be heard.
will be heard.
15. Press OFF to end testing of the refi ll valve.
16. Press NEXT to advance to the next component to
16. Press NEXT to advance to the next component to
be tested, TANK HEATR RELAY.
17. To test the tank heater relay, connect a voltmeter
across each of the tank heaters to check for volt-
age.
age.
18. Press ON. The correct voltage should be present
at the heater terminals.
19. Press OFF to end testing of the tank heater relay.
NOTE: The tank heater will automatically turn off if left
on too long.
on too long.
20. Press NEXT to advance to the next component to
be tested, TANK HEATR TRIAC.
21. To test the tank heater triac, connect a voltmeter
across each of the tank heaters to check for volt-
age.
age.
22. Press ON. The correct voltage should be present
at the heater terminals.
23. Press OFF to end testing of the tank heater triac.
24. Press NEXT to return to the TEST OUTPUTS screen.
24. Press NEXT to return to the TEST OUTPUTS screen.
To advance to the next function screen, TEST
SWITCHES, press NO. To exit programming, press
and release either ON/OFF button to return to the
MAIN SCREEN.
SWITCHES, press NO. To exit programming, press
and release either ON/OFF button to return to the
MAIN SCREEN.
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