Curtis WB5N Service Manual page 2

PROGRAMMING
UNIVERSAL CONTROL MODULE (UCM)
A
FUNCTION
1. Press TEMP button for 1 second to check the set point tem-
perature.
2. Press TEMP button for 3 seconds to enter heating tank tem-
perature programming mode. The temperature in the heating
tank is adjustable from 140º to 210º F.
To change temperature setting:
a. Press to decrease temperature.
b. Press to set and exit programming.
c. Press to increase at 2º increments.
B
FUNCTION
1. Press the AERATION button to pump air through the water in the heating tank.
2. Aerator pump will run as long as you hold down the button. Release button to stop.
LED SCREEN DISPLAY
When the unit is on and not in programming mode, the UCM will stay on and the LED screen will
display the current tank temperature. The factory setting is 204ºF. In the UCM programming, there is
an option to change the screen display to read HOT instead of the set point temperature. You may also
change the temperature units from Fahrenheit to Celsius.
To Change the LED To Read HOT:
1. Press the left TEMP button and hold down for 5 seconds. The F will start flashing.
2. Continue holding the TEMP button, at the same time, press and hold the ON/OFF button for 5
seconds.
3. Release both buttons. The program is now changed and the LED screen will display HOT.
4. While in the HOT display, pressing the TEMP button for 1 second will display the tank temperature.
To Change the LED To Read In Celsius:
NOTE: When the LED screen is in the HOT display mode, you cannot switch between Fahrenheit and
Celsius. The LED screen must be in the Temperature display mode.
1. Press and hold down the TEMP button for 10 seconds. The temperature reading will change to
Celsius.
2. Release the TEMP button. The LED screen will display the temperature in degrees Celsius (default is 96ºC).
AERATOR
The aerator pump will automatically come on every 30 minutes. Aeration is factory set to run for 5 seconds. When the aeration is running, the display
shows the LED bars chasing from left to right.
ERROR CODES
ERR1 = Overflow. Water level error.
ENERGY SAVER
The Energy Saver Mode is Defaulted to off. To turn on the energy saver mode, press and hold both the ON and TEMP button for 10 seconds. Use
the scroll buttons TEMP ◄ and ► AIR to choose OFF, ON, or 140ºF. Press the
If "OFF" is selected, Energy saver is disabled.
If "On" is selected, 4 Hr. after last dispense, the temp will not be maintained at any temperature (it will eventually drop to room temp).
If "140F" is selected, 4 Hr. after last dispense it maintains Tank Temp at 140F.
When the Energy Saver Mode is on, you can turn it off by pressing one of the control buttons or by simply dispensing some water through the faucet.
2
ERR2 = Open sensor. Break in temperature thermistor circuit.
I/O
FUNCTION
1. ON/OFF button. Press once to activate control panel.
2. ON/OFF button used to set and exit programming.
button to select.