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Calibration
Program Items
Flow Rates
Brew left
Water Valves
Flow Rates
Brew right
Water Valves
Flow Rates
Bypass left
Water Valves
Flow Rates
Bypass right
Water Valves
Flow Rates
For automatic hot
Faucet Valve
water faucet
Slow Flow
Fill Compensation
Compensation
LLC
Flow rate corrects the brew volume if it is different from the programmed value.
Flow rate is calculated and corrected manually.
NOTE Inspect and correct these common causes for the differences in the brewed volume to the programmed volume.
-CSD spray head is not in place. This will always result in increased and inconsistent flow volume.
-Flow related error codes 100, 101 - see page 11. Reduced water flow can cause reduced brew volume.
-Faulty or damaged inlet valve, often traceable to incorrect Inlet valve adapter fitting (see page 14)
-Bypass turned on and not flowing or incorrect. Bypass flow is calculated into total flow and cause short potting if faulty
-Verify that the controls show that the brew time is correct, and the display is operating as the control may be turning off.
-Lime scale. This can cause erratic and sometimes random under or over brew volumes. Lime scale accumulation can
cause the brew valve to drip, to be stuck open or closed, or fail due to lime scale accumulation.
Always inspect and correct inlet valve, brew valve, CSD and lime scale faults before changing flow rate.
Use this formula to manually compensate for minor discrepancies in actual volume versus programmed volume.
Set lower to increase volume, higher to decrease volume. The following formula is used to determine the correct setting:
Current setting is the flow from
CALIBRATION / Flow Rates / Water Valves
See table above for factory set default flow rates
ACTUAL VOLUME
X
PROGRAMMED VOLUME
Use this formula to determine the correct setting
EXAMPLE: A three gallon brew was under by one quart (2.75 gallon) Using the formula above and the default flow rate
for the brew valve (1.05) the new flow rate is 122.8 (rounded to 129). Enter this number into water valve (above)
Exit and save IMPORTANT test brew to verify the new volume Make further modifications as needed (See next page)
Go to fetco.com for the latest versions of all information
Factory set
Default
1.05 gal/min
3500 ml/min
1.05 gal/min
3500 ml/min
0.67 gal/min
2500 ml/min
0.67 gal/min
2500 ml/min
1500 ml/min
50 oz/min
OFF
NORMAL
Check and correct the following:
=
CURRENT SETTING
NEW SETTING
Programming Range
/
Brew Left
1.05 (
4000
Gal.)
(ml)
3350
ml/min
4650
0.88
gal/min
1.22
-----------------
/
Brew Right
1.05 (
4000
Gal.)
(ml)
3350
ml/min
4650
0.88
gal/min
1.22
-----------------
/
Bypass Left
0.67
2550
(Gal.)
(ml)
2100
ml/min
2950
0.55
gal/min
0.77
-----------------
/
Bypass Right
0.67
2550
(Gal.)
(ml)
2100
ml/min
2950
0.55
gal/min
0.77
-----------------
Faucet Valve 50
/1500
(oz)
(ml)
500
ml/min
5000
16
oz/min
169
----------------
Scroll and go to EXIT&SAVE
Off
o .. 1.5x
o
2.5x
Scroll and go to EXIT&SAVE
Normal
o .. High
Scroll and go to EXIT&SAVE
Default Brew Valve Flow Rate-CBS-2260 Brewers
CBS-2260
Left Brew Valve FR
Right Brew Valve FR
Left Bypass Valve FR
Right Bypass Valve FR
Set FR lower to increase volume.
Set FR higher to decrease volume.
Page 11
P195
Notes
Use to attenuate and compensate for
variations in brew valve output
Use to attenuate and compensate for
variations in brew valve output
Use to attenuate and compensate for
variations in bypass valve output
Use to attenuate and compensate for
variations in bypass valve output
To compensate variations in timed
dispense from automatic hot water
faucet
Use for FloJet bottled water supply or
for reduced water supply from mains.
Liquid level control sensitivity.
Normal for most water.
High is for reverse osmosis water or
very pure water.
Gal./
min
1.05
1.05
0.67
0.67
2.75
X
1.05
3.00
FETCO
CBS-2261, CBS-2262
mL/
min
4000
4000
2500
2550
=
0.96
October 2023
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