Bunn Brewer TWF

CAUTION - Do not keep brewed tea overnight. Clean and sanitize your iced tea dispenser daily

Remove and thoroughly clean the brew funnel. The funnel tip and screen must be free from any tea particles or residue. Reassemble the funnel

Unplug the brewer. Remove and thoroughly rinse the sprayhead. The holes must be open and clear of any mineral deposits. Wipe the sprayhead panel clean with a damp cloth

Insert the deliming spring into the sprayhead fitting until no more than one inch is visible and move it in and out 5 or 6 times. Insert the spring into the airvent hole in the sprayhead panel and move it in and out 5 or 6 times. Reattach the sprayhead

Wash the entire outside surface of the brewer with a clean damp cloth

Sign off on the daily brewer cleaning

Remove both wires from the control thermostat terminals

Remove the thermostat capillary bulb by firmly pulling up on the capillary tube at the tank lid

Remove the #8-32 screw holding the control thermostat to its bracket

Slide the grommet to the line 4.5\ above the bulb on the new capillary tube"

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

Carefully bend the capillary tube so that the tube and bulb inside the tank are in a vertical position

NOTE - The capillary tube must be clear of any electrical termination and not kinked

Fasten the new control thermostat to its bracket

Disconnect the brewer from the power source

Check the voltage across the blue wire on the control thermostat and the white wire on the tank heater for 120 volt two wire models or red wire on the tank heater for 120/208 volt three wire models

Connect the brewer to the power source

Disconnect the brewer from the power source

Check the brewer wiring harness if voltage is not present as described

Locate the black wire on the control thermostat

Gently remove the capillary bulb and grommet from the tank

Check the voltage across the black wire of the control thermostat and the white wire on the tank heater for 120 volt two wire models or red wire on the tank heater for 120/208 volt three wire models when the control thermostat is turned fully clockwise

Connect the brewer to the power source

Remove the two #8-32 screws securing circuit board to the mounting bracket

Remove circuit board and spacers (as required)

Remove all wires from the timer

Attach all wires to the replacement timer board prior to installation to the component mounting bracket. Refer to FIG. 13 when reconnecting the wires

Install new circuit board with spacers (as required) to the component mounting bracket

Adjust the timer as described below

Check that the brewer is connected to water supply, the tank is properly filled, and a funnel and server are in place

All volume settings must be done with the sprayhead installed

NOTE: Do not remove or install wires while timer board is installed. Pressure applied to one side may cause damage to the board

Disconnect the brewer from the power source and remove the front access panel

Remove the two #8-32 screws securing circuit board to the hood

Remove circuit board and spacers (as required)

Voltage across terminals TL1 and TL2 when the 'TEA/OFF/COFFEE' switch is in the 'TEA' position

Voltage is 120 volts ac for two wire 120 volt models and three wire 120/208 volt models

If voltage is not present as described, check the brewer wiring harness

Voltage across terminals TL1 and TL4 when the 'TEA/OFF/COFFEE' switch is in the 'TEA' position