UF-1 and UFB-1 Valves Training Manuai
Publication Number: 315222001OPR - 13 - © 2023, Marmon Foodservice Technologies
5. Controls and Electrical
All UF-1 and UFB-1 valves have a 24 volt solenoid that should be powered by an 80 kVA rated transformer.
Voltage at the coil with the solenoid energized should be 22 and 27 VAC.
5.1 UF-1 and UFB-1 Portion Control Valve
The UF-1 and UFB-1 Portion Control Valves are push and release that dispense for a
programmed duration. There are four settings: small, medium, large, and extra-large.
There is also a Cancel/Pour rectangular button with red and green arrows. If this
button is pressed during dispensing, the flow stops. If the valve is not dispensing and
the button is pressed, the valve dispenses as long as the button is held.
The portion controls are factory programmed to the following default settings:
Figure 29
Portion Control Valve Programming
To set the amount of beverage dispensed, follow this procedure:
1. Press the hidden program switch until the PGM light turns on. (This light shows only when the
programming mode is turned on.)
2. Put desired amount of ice in cup. Press and hold a portion button until the desired level in the appropriate
sized cup is reached. Release the button.
3. Continue with other portion buttons that need programming. Portion buttons may be reprogrammed as
many times as necessary. Only the last time values entered for each button will be saved when exiting the
programming mode.
4. Press the program switch until the PGM light turns off.
Figure 30
NOTE: The portion control valve does not have a top-off function.
NOTE: When in programming mode, press and release any of the portion size buttons to return to the factory
portion settings.
NOTE: Portion controls will not operate below 22 volts. This is known as the “brown-out feature.”
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