Bunn iMIX-3 Manual de Usario

Bunn cafetera iMIX-3

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IMIX®-3
IMIX®-4
IMIX®-5
INSTALLATION & OPERATING GUIDE
BUNN-O-MATIC CORPORATION
POST OFFICE BOX 3227
SPRINGFIELD, ILLINOIS 62708-3227
PHONE: (217) 529-6601 FAX: (217) 529-6644
To ensure you have the latest revision of the Operating Manual, or to view the Illustrated Parts
Catalog, Programming Manual, or Service Manual, please visit the Bunn-O-Matic website, at
www.bunn.com. This is absolutely FREE, and the quickest way to obtain the latest catalog and
manual updates. For Technical Service, contact Bunn-O-Matic Corporation at 1-800-286-6070.
37510.0000L 01/13 ©2004 Bunn-O-Matic Corporation
5
PLUMBING REQUIREMENTS
This dispenser must be connected to a system with operating pressure between 20 and 90 psi from a cold water
1⁄2” or larger supply line. A shut-off valve should be installed in the line before the dispenser. Install a regulator
in the line when pressure is greater than 90 psi to reduce it to 50 psi. The water inlet fitting is 1⁄4” flare.
NOTE - Bunn-O-Matic recommends 1⁄4” copper tubing for installations of less than 25 feet and 3⁄8” for more
than 25 feet from the 1⁄2” water supply line. At least 18 inches of an FDA approved flexible beverage tubing,
such as reinforced braided polyethylene or silicone, before the dispenser will facilitate movement to clean the
countertop. Bunn-O-Matic does not recommend the use of a saddle valve to install the dispenser. The size and
shape of the hole made in the supply line by this type of device may restrict water flow.
NOTE - If a backflow preventer is required by code, a shock arrestor should be installed between backflow pre-
venter and dispenser. Installing the shock arrestor as close to the dispenser as possible will provide the best
results.
NOTE - Water pipe connections and fixtures directly connected to a potable water supply shall be sized, installed
and maintained in accordance with federal, state and local codes.
PLUMBING HOOK-UP
1. Flush the water line and securely attach it to the elbow fitting on the bottom of the dispenser.
2. Turn on the water supply.
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, and forty minutes on 120/240 volt and 230 volt versions.
4. Fill the hopper(s) with the dry product to be dispensed.
37510 010713
As directed in the International Plumbing Code of the International Code Council and the Food Code
Manual of the Food and Drug Administration (FDA), this equipment must be installed with adequate
backflow prevention to comply with federal, state and local codes. For models installed outside the
U.S.A., you must comply with the applicable Plumbing /Sanitation Code for your area.
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.)
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 recom-
mended temperature for the hot powder product being used.
8
HOPPER DISPENSE RATE OF PRODUCT
The hopper dispense rates are preset at the factory. With 22 tooth gear and auger wire, the preset dispense
rate is approximately 3 to 5 grams per second. With 30 tooth gear and auger wire, the preset dispense rate is
approximately 5 to 7 grams per second. The hopper dispense rates can be individually programmed to a range
of dispense rates from approximately 1.5 to 12 grams per second, by following the procedures described in
Programming Modes.
HOPPER LEVEL SENSOR CALIBRATION
The dispenser is equipped with sensors to detect a low level in each hopper. When low powder lockout is
enabled, dispensing will be disabled when a low powder condition is detected in a hopper. The LCD screen on
the door will also display a low level condition.
The despenser is shipped from the factory with the low level powder lock disabled. To enable the lock,
place the “NORMAL/PROGRAM/RINSE” switch (page 10) in the “PROGRAM” position. Press button A (page
10) below the BUNN logo on the front of the door. Continue to press this button until the “LOCKS/DISABLES?”
menu is reached. Press button B (page 10} for “YES”, then press it again in the “LOW POWDER LOCK?” menu.
The low powder lockout is now enabled. Press button C (page 10) to exit the program menus, then return the
“NORMAL/PROGRAM/RINSE” button to the “NORMAL” position. To disable the low powder lockout, repeat the
process, and press button D (page 10) for “NO”, in the “LOW POWDER LOCK” menu.
The low level sensors are factory calibrated for most products. If calibration is required for proper opera-
tion, the sensors can be recalibrated to the current product.
The hopper must be at least half full of product for calibration. Place the “NORMAL/PROGRAM/RINSE”
switch in the “PROGRAM” position. Using button A (page 10), forward until the “CALIBRATION?” menu is
reached. Press button B (page 10) for “YES”, then press button A (page 10) until “CAL HOPPER 1?” screen is
reached. Continue to press button A until the hopper to be calibrated is reached.
To calibrate the hopper, press button B (page 10) to indicate “YES” in the “CAL HOPPER#? screen. The
screen will then ask you if the hopper is full. Press the button again to indicate “YES”. The calibration will then
take a few moments, then the screen will display “POWDER LEVEL RESET COMPLETE”. The next hopper may
be calibrated by moving forward in the menu, or press button C (page 10) to exit.
DRAINING THE HOT WATER TANK
CAUTION - The dispenser must be disconnected from the power source throughout these steps
1. Disconnect the dispenser from the power source.
2. Open front door and place ON/OFF/NIGHT switch in the “OFF” (center) position and let the water in the tank
cool before draining.
3. Shut off and disconnect the incoming water supply.
4. Remove the drip tray and access panels below the door.
5. Pull the clamped end of the silicone tube out of the dispenser and direct it into a drain or a container large
enough to hold the volume of water in the tank (7.3 gal for iMIX-4/5 and 4.4 gal for iMIX-3).
6. Make certain the shut off clamp is locked tightly on the tube, then remove the snap type clamp and plug from
end of tube.
7. Carefully release the shut off clamp to let the water drain from the tank.
NOTE - The dispenser must be refilled using the INITIAL FILL & HEAT steps before reconnecting to the power
source.
37510 051311

Especificaciones del producto

Marca: Bunn
Categoría: cafetera
Modelo: iMIX-3

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