Bunn 41722.0000A manual Disconnect the control thermostat wires

SERVICE (cont.)

CONTROL THERMOSTAT (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.

FIG. 11-1 CONTROL THERMOSTAT TERMINALS

FIG. 11-2 REPLACEMENT CONTROL THERMOSTAT

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