Service manual

8
INITIAL FILL & HEAT
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 ten minutes.
3. When the tank is full of water, open the front door and place the ON/OFF/NIGHT switch in the “ON” (upper) position.
A tank full of cold water will take approximately eighty minutes for the water to heat on 120 volt versions.
4. Fill the six hoppers with the dry product to be dispensed. From left to right:
1 – French Vanilla flavoring
2 – Cappuccino
3 – Limited Time Offer
4 – Hot Chocolate
5 – Steamed Milk
6 – Caramel flavoring
45304.1 010813
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 10 minutes, a refill error occurs. When a
refill error occurs, the refill solenoid is de-energized. Once the cause of the refill error has been investigated 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, refer to Programming
the Dispenser and select yes in the “Rinse Alarm?” screen; set timer to the desired time and exit the programming mode.
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 the desired time, a mes¬sage will appear on
the LCD display. If the Lockout is set, after an additional 4 hours, a rinse cycle has still not been run, the LCD display will
display a message, and the hopper drives will be disabled until a rinse sequence has been run.
LOW POWDER LOCKOUT
The dispenser has a low powder lockout for the steamer hopper. After a “low” powder condition is detected in the hop-
per, the dispenser will allow a fixed number of auger turns of the steamer hopper before the hopper is considered empty.
When an empty hopper condition is reached, dispensing of any beverages containing steamer powder will be locked out.
The threshold for detecting a low powder condition, and the number of auger turns after a low condition is detected, can
be adjusted in the “CALIBRATION?” section of the programming menus.
RUNNING A RINSE SEQUENCE
1. Place the Normal/Program/Rinse switch in the “Rinse” position.
2. Place a large container under the dispense nozzle. Press any dispense switch. The unit will rinse for ten seconds, and
then stop. Release the dispense switch.
3. After rinsing, return the Normal/Program/Rinse switch to the “Normal” position.
DISPENSER USE
1. Simply place a cup on the drip tray beneath the dispense nozzle.
2. Press and hold any dispense button for the desired beverage.
3. Release the dispense button when the cup is 2/3 full.
PRESET TANK TEMPERATURE
Tank temperatures have been preset at the factory to 180°F (82°C). Bunn recommends that to provide the best quality
beverage, the installer adjust the tank temperature to the powder product manufacturer’s recommended temperature for
the hot powder product being used.