Adjusting Brew Volumes - Bunn CWT 15-APS Installation & Operating Manual

CAUTION - Disconnect the power source from the brewer prior to the removal of any panel for the replacement
or adjustment of any component.
NOTE: Prior to setting or modifying batch sizes, check that the brewer is connected to water supply, the tank is
properly filled, and a funnel and server are in place.
1. Modifying batch sizes. To modify a batch volume, first check that the SET/LOCK switch is in the "SET" posi-
tion on the circuit board.
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.
THERMOSTAT
In most locations the thermostat should be turned to the full clockwise postion (200° F) for optimum brewing
temperature. In areas of high altitude you may have to turn it down (counterclockwise) to prevent boiling.
THERMOSTAT KNOB
FIG 11-1

ADJUSTING BREW VOLUMES

SET
LOCK
SET/LOCK SWITCH
Page 11
NOTICE
Brew water temperature is factory set at 200° F (93.3° C)
Areas of high altitude will require lowering this tempera-
ture to prevent boiling. This chart should be used as a
guide when readjusting the brew water temperature.
Boiling point
Altitude
of water
° F ° C
(Feet)
-1000 213.8 101.0
-500 212.9 100.5
0 212.0 100.0
500 211.1 99.5
1000 210.2 99.0
1500 209.3 98.5
2000 208.4 98.0
2500 207.4 97.4
3000 206.5 96.9
3500 205.6 96.4
4000 204.7 95.9
4500 203.8 95.4
5000 202.9 94.9
5500 201.9 94.4
6000 201.0 93.9
6500 200.1 93.4
7000 199.2 92.9
7500 198.3 92.4
8000 197.4 91.9
8500 196.5 91.4
9000 195.5 90.8
9500 194.6 90.3
10000 193.7 89.8
35665.0000A 05/04 © 2004 Bunn-O-Matic Corporation
Recommended
water temperature
° F ° C
200 93.3
200 93.3
200 93.3
200 93.3
200 93.3
200 93.3
200 93.3
200 93.3
199 92.8
198 92.2
197 91.7
196 91.1
195 90.6
195 90.6
194 90.0
193 89.4
192 88.9
191 88.3
190 87.8
189 87.2
188 86.7
187 86.1
186 85.6
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