Fetco CBS-1221 - Service Inputs; Service Input Details; Service Outputs; Service Output Details

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C SERVICE INPUTS Brewer Sensors and Keypad
POSITION Program Items Factory set Default Programming Range Increments Notes
C1
LLC Probe
continuity
Direct read
Reading of tank
water resistivity in
TDS
≈850- LOW
≈1600-HIGH
Nominal values
C2
Brew Basket
Sensor
Direct read YES or NO
C3
Tank
Temperature
Direct read
Hot water tank
temperature
Actual values
C4 USB Drive NO
C5 Keyboard Test Calibrate
Checks buttons
under membrane
cover
YES/NO
Follow directions on
the touch screen
.
D SERVICE OUTPUTS Test Valves and Heaters; Set screen bri
g
htness
POSITION Program Items Factory set Default
Programming
Ran
g
e
Increments Notes
D1
Heater SSR
Test
Press button 2 to test
(button 1 stops test)
Activates heater
Default is 10 sec..
Toggle +/-
OFF or ON
Energizes Heater(s)
WARNING!
Service use onl
y
.
D2 Fill Valve Test
Press button 2 to test
(
button 1 stops test
)
Activates valve
Default is 10 sec.
Toggle +/-
OFF or ON
Press To Test
D4 Brew Valve Test (Press to test)
Activates valve
Default is 10 sec.
Toggle +/-
OFF or ON
Runs valve to verify flow.
NOTE: Have container
under brew basket.
Sin
g
le series displa
y
s ri
g
ht side onl
y
Left Valve displa
y
is onl
y
for twin side brewer.
D9 LCD Brightness Brightness=90% 20-100% 5%
Adjust LCD screen
brightness only-Not for
LEDs under buttons
D10 LED Brightness Brightness=60% 20-100% 5%
Adjust LED button
brightness only-Not for
the screen displa
y
LCD
.
E CALIBRATION Brewer Sensors and Keypad
POSITION Program Items Factory set Default Programming Range Increments Notes
E1
Ready Temp.
Offset
-4°F
-2°C
-2° to -10°F
-1° to -5° C
1°F
1°C
Compensates output to
measured temperature
E2 LLC Sensitivity
NORMAL
(“NORMAL” for most
water)
HIGH
(Biased for reverse
osmosis water or
very pure water)
NORMAL
HIGH
Liquid level control
sensitivity.
High,1300Ω is for reverse
osmosis water or very
pure water.
E3
Slow flow rate
from mains
OFF OFF/ON
Toggle +/-
YES or NO
Trims fill system for low
suppl
y
E5
RIGHT brew
valve flow rate:
1.60L/0.42G
1.30-1.90Liter
0.34-0.52G
0.05L
0.013G
Adjusts flow rate
Use this formula to compensate for minor discrepancies in actual volume versus programmed volume.
Default Brew Valve Flow Rate—All CBS-1200 Brewers
CBS-1220 L/min Range
Right Brew Valve FR 1.60 +1.3 L to 1.9 L
Use the formula above to determine the correct setting
Set lower to increase volume, higher to decrease volume.
See “PROGRAM” E5 For valve settings and calibration. Factory set brew valve flow rates are in liter/min