Bunn U3A - Manual (Page 5)

Page 5
INITIAL SETUP
CAUTION - The brewer must be disconnected from the power source throughout the Initial Setup , except when
specified in the instructions.
IMPORTANT: Brewer must be level and installed on a sturdy structure.
Electrician's and Plumber's Instructions are provided. These instructions should be carefully
followed before proceeding with
Initial Setup .
Be sure all electrical and plumbing connections are tight.
1. Open manual fill valve located on the bottom of the brewer. Water should start filling the tank. When water is
visible in the hot water gauge glass (center spigot), close valve. Approximate time for filling manually is 3
minutes.
CAUTION: Never leave brewer unattended while manually filling tank.
2. Connect the brewer to the power source. Turn "ON/OFF" switch to the "ON" position. Water should finish filling
tank automatically.
NOTE: It is recommended that the "ON/OFF" switch be left in the "OFF" position at the end of the operating day or
when unattended for a long period of time.
3. Disconnect the brewer from the power source. Remove front cupola cover for access to thermostat knob and
timer.
4. Turn the thermostat knob clockwise to an approximate 5 o'clock position. Replace the front cupola cover.
5. Connect the brewer to the power source and wait for the water in the tank to heat to the proper temperature.
This will take approximately 1-2 hours, depending on the incoming water temperature. Some water will flow
from the overflow tube during this time due to expansion. Draw off a 1/2 gallon decanter of water every 15
minutes during the initial heat-up to lessen the chance of hot water flow from this expansion.
6. Determine the water temperature by checking the water with a thermometer at the hot water faucet (red handle).
The best brewing temperature is between 195˚ and 200˚F. The temperature may be increased by turning the
thermostat knob clockwise and decreased by turning the knob counterclockwise.
7. When the desired temperature is reached, place the funnel support, funnel, and funnel cover on top of the coffee
reservoir. Center the discharge of the water swing spout over the opening in the top of the funnel cover.
8. Place the lighted ON/OFF switch in the "ON" position and momentarily press and release the start switch. Water
should flow from the swing spout into the funnel assembly.
9. Drain and measure the water from the reservoir when the flow of water from this initial cycle stops. If it is three
gallons, proceed to step 11. If it is more or less than three gallons, proceed to step 10.
10. Adjust the brew timer as required. See Adjusting Brew Volumes. Repeat steps 8 and 9.
11. The brewer is now properly adjusted to brew coffee.
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