C Service Inputs; D Service Outputs; E Calibration - Fetco CBS-1221 Users Manual And Operator Instructions

C SERVICE INPUTS

POSITION Program Items
LLC Probe
C1
continuity
Brew Basket
C2
Sensor
Tank
C3
Temperature
C4 USB Drive
C5 Keyboard Test
.

D SERVICE OUTPUTS

POSITION Program Items
Heater SSR
D1
Test
D2 Fill Valve Test
D4 Brew Valve Test
Single series displays right side only Left Valve display is only for twin side brewer.
D9 LCD Brightness
D10 LED Brightness
.

E CALIBRATION

POSITION Program Items
Ready Temp.
E1
Offset
E2 LLC Sensitivity
Slow flow rate
E3
from mains
RIGHT brew
E5
valve flow rate:
Use this formula to compensate for minor discrepancies in actual volume versus programmed volume.
See "PROGRAM" E5 For valve settings and calibration. Factory set brew valve flow rates are in liter/min
Go to fetco.com for the latest versions of all information
Brewer Sensors and Keypad
Factory set Default
Direct read
Direct read
Direct read
NO
Calibrate
Test Valves and Heaters; Set screen brightness
Factory set Default
Press button 2 to test
(button 1 stops test)
Press button 2 to test
(button 1 stops test)
(Press to test)
Brightness=90%
Brightness=60%
Brewer Sensors and Keypad
Factory set Default
-4°F
-2°C
NORMAL
("NORMAL" for most
water)
OFF
1.60L/0.42G
Default Brew Valve Flow Rate—All CBS-1200 Brewers
CBS-1220
Right Brew Valve FR
Use the formula above to determine the correct setting
Set lower to increase volume, higher to decrease volume.
Programming Range
Reading of tank
water resistivity in
TDS
YES or NO
Hot water tank
temperature
Checks buttons
under membrane
cover
Programming
Range
Activates heater
Default is 10 sec..
Activates valve
Default is 10 sec.
Activates valve
Default is 10 sec.
20-100%
20-100%
Programming Range Increments
-2° to -10°F
-1° to -5° C
HIGH
(Biased for reverse
osmosis water or
very pure water)
OFF/ON
YES or NO
1.30-1.90Liter
0.34-0.52G
L/min
1.60
User Guide & Operator instructions
Page 7
Increments
≈850- LOW
Nominal values
≈1600-HIGH
Actual values
Follow directions on
YES/NO
the touch screen
Increments Notes
Energizes Heater(s)
Toggle +/-
WARNING!
OFF or ON
Service use only.
Toggle +/-
Press To Test
OFF or ON
Runs valve to verify flow.
Toggle +/-
NOTE: Have container
OFF or ON
under brew basket.
Adjust LCD screen
5% brightness only-Not for
LEDs under buttons
Adjust LED button
5% brightness only-Not for
the screen display LCD
Notes
1°F Compensates output to
1°C measured temperature
Liquid level control
sensitivity.
NORMAL
High,1300Ω is for reverse
HIGH
osmosis water or very
pure water.
Toggle +/- Trims fill system for low
supply
0.05L
Adjusts flow rate
0.013G
Range
+1.3 L to 1.9 L
P194Re0
Notes
November 2020