Bunn TB3 Series User Manual

Page 6

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NOTE: Check that the brewer is connected to water supply, the tank is properly filled, and a funnel and server 

are in place, prior to setting or modifying batch sizes.

1.  Modifying batch sizes. To modify a batch volume, first check that the SET/LOCK switch is in the “SET” po-

sition on the circuit board. If the brewer has a batch selector switch, position it to the size to be changed.

 To increase a batch size, Press and hold the START or BREW  switch until three clicks are heard. Release the 

switch (Failure to release the switch within two seconds after the third click causes the volume setting 

to be aborted and previous volume setting will remain in memory) and press it again one or more times. 

Each time the switch is pressed, two seconds are added to the brew time period.  Allow the brew cycle 

to finish in order to verify that the desired volume has been achieved.

 To decrease a batch size, Press and release the START or BREW switch once for every two-second interval to 

be removed from the total brew time period; then immediately press and hold down the START or BREW 

switch until three clicks are heard. Release the switch. (Failure to release the switch within two seconds 

after the third click causes the volume setting to be aborted and previous volume setting will remain in 

memory). Allow the brew cycle to finish in order to verify that the desired volume has been achieved.

2.  Setting batch sizes. To set a batch volume, first check that the SET/LOCK switch is in the “SET” position on 

the circuit board. Press and hold the START or BREW switch until three distinct clicks are heard (this will 

take approximately ten seconds), and then release the switch. (Failure to release the switch within two 

seconds after the third click causes the volume setting to be aborted and previous volume setting will 

remain in memory). View the level of the liquid being dispensed. When the desired level is reached, turn 

the ON/OFF switch to “OFF”. The brewer remembers this volume and will continue to brew batches of 

this size until the volume setting procedure is repeated. Empty server, flip selector switch to position that 

has yet to be set, and repeat batch setting procedure until both batch sizes are set. 

NOTE: When brewing tea, batch volumes will decrease due to absorption by the tea leaves.

3.  Setting programming disable feature. If it becomes necessary to prevent anyone from changing brew 

times once programmed, you can set the SET/LOCK switch to the “LOCK” position. This will prevent any 

programming to be done.

41465  082208