Bunn FMD DBC-3 Operating & Service Manual page 5

INITIAL FILL & HEAT
CAUTION - The dispenser must be disconnected from the power source throughout the initial fill & heat, except
when specified in the instructions.
1. Turn on the water supply and connect the dispenser to the power source.
2. Water will automatically flow into the tank to the proper level and then shut-off. This will take less than five
minutes.
3. When the tank is full of water, open the front door and place the heater switch in the "ON" (lower) position.
A tank full of cold water will take approximately forty minutes for the water to heat on 120 volt versions, and
twenty minutes on 120/240, 240 and 230 volt versions.
During this waiting period, complete these dispenser set-up steps:
a. Place a set of keyholes in the splash panel over the screws beneath the hopper access door and push down
gently.
b. Place the drip tray onto the supports on the splash panel. Hook the tabs on the rear of the drip tray through
the holes in the splash panel. Set the drip tray cover in place.
c. Fill the hopper(s) with the dry product to be dispensed.
LIQUID LEVEL CONTROL
The system automatically maintains the hot water tank's level by energizing the refill solenoid when the water
level drops below the liquid level probe. If the system has not successfully refilled in 15 minutes, a refill error
occurs.
When a refill error occurs, the refill solenoid is de-energized and the 3 position L.E.D.'s will flash sequentially;
left...center...right...left...center...right...etc.
Once the cause of the refill error has been investigated (see the troubleshooting guide) and cured, the system
can be reset by either disconnecting (for at least 5 seconds) and then reconnecting the power to the machine, or
by entering one of the program modes (see Programming Modes.)
RINSE TIMER
The dispenser is shipped from the factory with the rinse timer disabled. To enable the rinse timer, remove power
from the dispenser, remove the lower access panel, and remove the jumper from J4 of the control board. For
dispensers with hot water dispense, remove power from the dispenser, remove the lower access panel, and
disconnect the green wires coming from J4 of the control board from each other. Replace the lower access
panel, and return power to the dispenser.
When enabled, the rinse timer automatically keeps track of the time since the dispenser was last run through a
rinse sequence. If the dispenser detects that a rinse sequence has not been run for 8 hours, all three position
L.E.D.'s will flash continually. If, after an additional 4 hours (12 hours total), a rinse cycle has still not been run,
all three position L.E.D.'s will light continuously, and the hopper drives will be disabled until a rinse sequence
has been run.
RUNNING A RINSE SEQUENCE
1. Place the Rinse/Run switch in the "rinse" position .
2. Sequentially or simultaneously at each of the three positions, press any of the three dispense switches. The
dispenser will run for 10 seconds with the hopper(s) disabled.
3. As each position is rinsed, the corresponding L.E.D. will extinguish, indicating that the rinse cycle took place.
4. After all three position L.E.D.'s have extinguished, the rinse timer is reset.
5. Return the Rinse/Run switch to the "run" position.
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