SERVICE (cont.)

BREW TIMER (ICED TEA - Early Models)

P1961.50

FIG. 10 ICED TEA BREW TIMER Location:

The iced tea brew timer is located in the hood on the right side. It consists of the dial plate and circuit board.

Test Procedure:

1.Disconnect the brewer from the power source.

2.Remove the wires from terminals TL3, TL4, & TL5 of the iced tea timer and rotate the dial fully coun- terclockwise.

2.With a voltmeter, check the voltage across termi- nals TL1 and TL2 when the TEA/OFF/COFFEE switch is in the “TEA” position. Connect the brewer to the power source. The indication must be 120 volts ac for two wire 120 volt models and three wire 120/208 volt models.

3.Disconnect the brewer from the power source.

If voltage is present as described, proceed to #4.

If voltage is not present as described, refer to the Wir- ing Diagram and check the wiring harness.

4. Check for continuity across the orange and yel- low wires when the START switch is held in the lower position.

If continuity is present as described, reconnect the wires to terminals TL3, TL4, & TL5 of the timer board and proceed to #5.

If continuity is not present as described, refer to the Wiring Diagrams and check the wiring harness.

5.With a voltmeter, check the voltage across termi- nals TL1 and TL4 when the TEA/OFF/COFFEE switch is in the “TEA” position and the START switch is momentarily placed in the lower posi- tion. Connect the brewer to the power source. The indication must be 120 volts ac for two wire 120 volt models and three wire 120/208 volt models for approximately twenty seconds and then return to its previous indication.

6.Disconnect the brewer from the power source.

If voltage is present as described, the timer is operat- ing properly. Adjust the timer dial as required.

If voltage is not present as described, replace the timer.

Removal and Replacement:

1.Remove all wires from the iced tea brew timer.

2.Remove the circuit board and dial plate from the brackets.

3.Install the new timer circuit board as described in Late Model Timer section on the following pages.

4.Refer to Fig. 13 when reconnecting the wires.

5.Install the Timer Setting decal, provided with the replacement timer kit, to the rear of the schematic on the top cover.

5.Adjust the timer as required. Refer to Late Model Timer section on the following pages.

WHI to Power Cord (120V Models) or WHI to Terminal Block (120/208V Models)

WHI/VIO to Iced Tea Solenoid

WHI/VIO to TEA/OFF/COFFEE Switch

YEL to START Switch

WHI/BLU to Iced Tea Solenoid

ORN to START Switch

EARLY MODELS

P1962

 

FIG. 11 ICED TEA BREW TIMER TERMINALS

Page 20

10510

071000

 

 

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Bunn TWF service manual Service Brew Timer Iced TEA Early Models, Iced TEA Brew Timer Terminals
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TWF specifications

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In conclusion, the Bunn TWF is an exceptional choice for those in the coffee business looking to elevate their brewing game. With its outstanding features, advanced technologies, and user-focused design, it stands out as a leader in commercial coffee brewing solutions. Whether for a high-traffic café or a catering operation, the Bunn TWF is engineered to deliver quality and efficiency while satisfying the most discerning coffee connoisseurs.
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