Bunn STFA, SA service manual SERVICE cont CONTROL THERMOSTAT cont

SERVICE (cont.)

CONTROL THERMOSTAT (cont.)

Removal and Replacement:

1.Remove wires from control thermostat leads.

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.Models S & SA: Remove the two #8-32 screws securing control thermostat bracket mounted inside the rear inspection panel.

Models ST, STA, STF & STFA: Remove the one #8-32 screw securing the control thermostat to the component bracket in the front inspection panel.

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.Models S & SA: Using two #8-32 screws secure the control thermostat inside the rear inspection panel.

Models ST, STA, STF & STFA: Using one #8-32 screw secure the control thermostat to the com- ponent bracket inside the front inspection panel.

8.Refer to FIG. 3 when reconnecting the wires.

9.Adjust the control thermostat as required.

BLU to Limit Thermostat

BLK to Tank Heater

F F O

BUNN

HI

P2182

FIG. 3 CONTROL THERMOSTAT TERMINALS

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