Bunn TB3Q-LP - Manual (Page 11)

Page 11
SERVICE (cont.)
source. The indication must be:
a) 120 volts ac for two wire 120 volt models.
b) 200 to 230 volts ac for two wire 200 volt or 230
volt models.
8. Disconnect the brewer from the power source.
If voltage is present as described, reinstall the capillary
tube into the tank to the line 4.5" above the bulb, the
control thermostat is operating properly.
If voltage is not present as described, replace the
thermostat.
Removal and Replacement:
1. Disconnect the control thermostat wires.
2. Remove the thermostat capillary bulb by firmly
pulling-up on the capillary at the tank lid. This will
disengage the grommet from the tank lid.
3. Remove the one #6-32 screw securing the control
thermostat to the component bracket inside the
hood.
4. Slide the grommet to the line 4.5" above the bulb
on the new capillary tube.
5. Insert the capillary bulb through the hole in the
tank lid and press the grommet firmly and evenly
so that the groove in the grommet fits into the tank
lid.
6. Carefully bend the capillary tube so that the tube
and bulb inside the tank are in the vertical posi-
tion.
NOTE - The capillary tube must be clear of any electri-
cal termination and not kinked.
7. Using one #6-32 screw, secure the control thermo-
stat to the component bracket inside the hood.
8. Adjust the control thermostat as required.
CONTROL THERMOSTAT (cont.)
FIG. 11-1 CONTROL THERMOSTAT TERMINALS
41722 070209
FIG. 11-2 REPLACEMENT CONTROL THERMOSTAT