SERVICE (cont.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DIGITAL BREW TIMER (Late Models)(cont.)

until three distinct clicks are heard and then release

4. Attach all wires to the replacement timer board

the switch. (Failure to release the switch within two

 

prior to installation to the component mounting

seconds after the third click causes the volume set-

 

bracket. Refer to FIG. 21 when reconnecting the

ting to be aborted and previous volume setting will

 

wires.

remain in memory.

 

 

5.

Install new circuit board with spacers (as re-

View the level of the liquid being dispensed. When

 

quired) to the component mounting bracket.

the desired level is reached, turn the ON/OFF switch

6.

Adjust the timer as described below.

to “OFF”.

 

 

Timer Setting:

NOTE: Several ounces of water will continue to sy-

phon from the tank after turning the switch “OFF”.

NOTE: Prior to setting or modifying volumes, check

The brewer remembers this volume and will continue

that the brewer is connected to water supply, the tank

to brew batches of this size until the volume setting

is properly filled, and a funnel and server are in place.

procedure is repeated.

 

 

NOTE: All volume settings must be done with the

NOTE: When brewing coffee, volume will decrease due

sprayhead installed.

to absorption by the coffee grounds.

 

 

1. Modifying brew volumes. To modify a brew vol-

3. Setting programming disable feature. If it be-

ume, first check that the SET/LOCK switch is in the

comes necessary to prevent anyone from changing

“SET” position on the circuit board.

brew time once programmed, you can set the SET/

 

To increase a brew volume, place the ON/OFF

LOCK switch to the “LOCK” position. This will pre-

 

vent any further programming until switch is once

switch in the “ON” position, press and hold the START

again put into the “SET” position.

 

 

switch until three clicks are heard. Release the switch

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

and press it again one or more times. (Failure to re-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

lease the switch within two seconds after the third

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

click causes the volume setting to be aborted and pre-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

vious volume setting will remain in memory) 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 brew volume, place the ON/OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

switch in the “ON” position, press and release the

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

START switch once for every two-second interval to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

be removed from the total brew time period; then im-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

mediately press and hold down the START 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 pre-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

vious volume setting will remain in memory). Allow

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

the brew cycle to finish in order to verify that the de-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

sired volume has been achieved.

BLU/BLK wire from TL5 to P1

 

 

 

 

 

 

2.

Setting brew volumes. To set a brew volume,

WHI/GRN wire from TL4 to (WHI) Solenoid

 

 

WHI/BLU wire from TL3 to (BLK) Solenoid

 

 

first check that the SET/LOCK switch is in the “SET”

WHI wire from TL2 to P2

 

 

position on the circuit board. Place the ON/OFF switch

BLK wire from TL1 to P3

 

P2037

in the “ON” position, press and hold the START switch

 

 

 

 

FIG. 21 DIGITAL TIMER WIRING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10478 061500

 

Page 28

 

 

 

 

Page 27 Page 29
Page 28
Image 28
Bunn CRTF5, CRT5 service manual Service Digital Brew Timer Late Modelscont, To increase a brew volume, place the ON/OFF
Page 27 Page 29

CRT5, CRTF5 specifications

The Bunn CRTF5 and CRT5 coffee brewers are appreciated by coffee enthusiasts and professionals alike for their reliability, efficiency, and innovative features. These commercial brewing systems are designed to deliver high-quality coffee consistently, making them ideal for cafes, restaurants, and other food service operations.

One of the standout features of the Bunn CRTF5 is its ability to brew multiple batches of coffee simultaneously. With a capacity of brewing up to 3.8 gallons per hour, it is equipped to handle high demand without compromising on quality. The unit has a programmable digital control which allows users to easily adjust brew temperature and time, ensuring each batch is brewed to perfection. This level of control empowers operators to customize their brewing process according to the unique preferences of their customers.

In terms of design, the Bunn CRTF5 and CRT5 models incorporate a stainless-steel exterior that not only enhances durability but also adds a sleek look to any kitchen or coffee shop environment. The large, easy-to-read water level indicator allows for straightforward monitoring of the brewing process, minimizing the risk of running out of water during peak busy hours. The easy-to-use front-access design also simplifies the loading and unloading of coffee grounds and water.

Technologically, the Bunn CRTF5 and CRT5 incorporate advanced brewing technology that helps maintain optimal brew temperatures through the use of stainless-steel water tanks. These tanks ensure that water is heated quickly and is maintained at consistent temperatures throughout the brewing process, positively affecting flavor extraction and ensuring the rich taste of coffee.

Another crucial characteristic of these brewers is the brew basket, which is designed for efficient flow control. This feature assists in achieving an even extraction process, thereby enhancing the overall quality of the coffee produced. Furthermore, the sturdy construction of the basket ensures that it can withstand the demands of daily use in a high-traffic environment.

In conclusion, the Bunn CRTF5 and CRT5 coffee brewers stand out in the commercial coffee brewing market. Their combination of robust features, advanced technologies, and user-friendly design makes them a smart choice for those looking to serve high-quality coffee quickly and efficiently. Whether in a bustling café or a restaurant, these brewers are built to deliver exceptional coffee experiences every time.
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