Wittern VendNet 3576M User manual

July 2013 4222618•A
STAND ALONE COLD/FROZEN
FOOD VENDOR
(GVC2 Controller)
MODELS:
3576M/3576MA – MULT-ZONE
(Cold and Frozen Food)
3576F/3576FA – SINGLE-ZONE
(Frozen Food)
3576C/3576CA – SINGLE-ZONE
(Cold Food)
SERVICE
MANUAL

MULTI-ZONE / FROZEN FOOD VENDOR • 3576 • 4222618A
ii
Table of Contents
INTRODUCTION ............................ 1
SPECIFICATIONS.......................... 2
UNPACKING.................................. 3
LOADING PRODUCTS ................... 5
TRAY ADJUSTMENTS................... 6
SPIRAL ADJUSTMENT.................. 8
AUTOMATIC DELIVERY LIFT ....... 9
CONTROLLER FUNCTIONS ........ 11
SERVICE MODE........................... 12
BASIC PROGRAMMING SETUP .. 12
4.0.7 REFRIGERATION
CONFIGURATION SETTINGS ..... 18
PRICING ...................................... 20
7 ADVANCED OPTIONS .............. 21
9 TEST ALL MOTORS.................. 21
0 DIAGNOSTICS.......................... 22
TEMPERATURE CONTROL .........26
HEALTH SAFETY FIELD TEST....28
REFRIGERATION.........................29
REMOVING THE REFRIGERATION
SYSTEM.......................................34
PREVENTIVE MAINTENANCE.....34
CONVERTING FROM SINGLE
ZONE TO MULTI-ZONE MODE ....35
CONVERTING FROM MULTI-ZONE
MODE TO SINGLE ZONE.............35
REPLACE AIR FILTER ................. 36
PARTS ORDERING PROCEDURE 38
BEFORE CALLING FOR SERVICE38
Please have the model and serial
numbers if you need service and parts
information. The numbers are on the
identification plate located on the back
side of the cabinet of the vending
machine.
If you have any questions pertaining
to information in the manual,
replacement parts or the operation of
the vendor, then you should contact
your local distributor or:
VendNet
8040 University Blvd
Des Moines, IA 50325
Phone: [phone]
International [phone]
Parts Fax: [phone]
Sales Fax: [phone]
E-mail: [e-mail]
MODEL NUMBER:___________________________________
SERIAL NUMBER: ___________________________________

3

MULTI-ZONE / FROZEN FOOD VENDOR • 3576 • 4222618A | 1
INTRODUCTION
This manual contains instructions, service and installation guidelines for the
Stand Alone Multi-zone/Cold/Frozen Food Vendor. Please read this manual
thoroughly and follow the instructions. The initial set-up of a vendor is a very
important step of insuring that the equipment operates in a trouble-free manner.
This vendor can be factory configured to have two
temperature compartments (top and bottom)
in a single
vending machine separated by moveable air deflectors and
insulating barrier. The vending machine has an air duct that
runs up and down on the back inner wall of the cabinet. Each
compartment can have 3 moveable trays and a total of 6 trays
for the entire vending machine. The vending machine will
maintain 2°C (36°F) in the Top compartment and down to -
24°C (-12°F) in the bottom compartment at an ambient range
of 4.4°C-32°C (40°F-90°F). The temperature setting for both
compartments are set by the controller (program).
TOP
BOTTOM
The top compartment has a heater system to maintain constant temperature
across varying ambient temperatures. This consists of a heater, temperature
sensor, air circulating blower and relays
The bottom compartment has a temperature sensor and an insulated
refrigeration system. Cool air is drawn from the refrigeration system’s evaporator
coils through the air duct and is deflected into the bottom zone by a moveable air
deflector. There are openings in the bottom trays to allow air to circulate around
the products.
All programming of the pricing, vend functions and features are also done at the
controller. Changes can be made without any additional accessories or remote
parts. Selections can be priced individually from $00.00 to $655.35 in five cent
increments (US currency). Cash accountability records, total cash transactions,
total vend cycles performed by the vendor, information for individual selections,
complete rows or total machine can be compiled and used for inventory and
ordering records. Electrical malfunctions are recorded and displayed when the
vending machine is placed in the Service Mode. Non-functional motors or
selections are indicated. Each selection has an individual motor. Functional
selections will continue to operate if other motors become nonfunctional.
The vending sequence is "first-in, first-out" for each selection, permitting stock
rotation to maintain fresh products in the vending area.
Each variant has the capability of supporting a "satellite" vending machine, such
as a direct wire CB300-SAT, or a USD satellite food such as a MZF Model 3530.
The satellite vendor utilizes the vendors existing controller, coin mechanism, bill
validator and keypad to perform the vend functions they require. The model 3530
has on-board refrigeration and motor controls. For details on the satellite vendor,
refer to the Service Manual pertaining to the specific vendor for installation
instructions.

2| MULTI-ZONE / FROZEN FOOD VENDOR • 3576 • 4222618A
SPECIFICATIONS
DIMENSIONS & WEIGHT
TYPE
MULTI-ZONE (3 WIDE)
MODEL 3576 3576A
WIDTH 29.5 in. (74.9 cm)
DEPTH
38 in. (96.5 cm)
HEIGHT 72 in. (182.9 cm)
ESTIMATED WEIGHT1693 lbs (614 kg)
Note: 1Weights will vary depending on optional equipment installed.
ELECTRICAL
MODEL
EMBRACO
VOLTAGE 115 VAC 230 VAC
CYCLE
60 Hz
50 Hz
NOMINAL AMPS 9.0 Amps 4.5 Amps
TRANSFORMER 110/24 VAC 230/24 VAC
REFRIGERATION
HORSEPOWER
EMBRACO
TYPE Hermetically Sealed
CONTROLS Electronic
REFRIGERANT
R-404a
CHARGE 17 oz (482g)
COIN CHANGER, BILL VALIDATOR, CARD READER
TYPE MDB Coin Changer level II or III, Bill Validator Level I, Card Reader
Level I or II
VENDOR OPERATION
LOCATION Suitable for indoor use only. This appliance is not suitable for
installation in an area where a water jet could be used.
RECOMMENDED
OPERATING
TEMPERATURE
Between 40° and 100° Fahrenheit (4° and 38° Celsius)

MULTI-ZONE / FROZEN FOOD VENDOR • 3576 • 4222618A | 3
UNPACKING
This vending machine was thoroughly inspected before leaving the factory and
the delivering carrier has accepted this vendor as their responsibility. Note any
damage or irregularities at the time of delivery and report them to the carrier.
Request a written inspection report from the claims inspector to file any claim for
damage. File the claim with the carrier (not the manufacturer) within 15 days
after receipt of the vending machine.
Carefully remove the outside packing material so as not to damage the finish or
exterior of the vending machine. Inspect the vending machine for concealed
shipping damage. Report any damage hidden by the shipping material directly to
the delivering carrier on a hidden damage report.
Record the model number and serial number of the vendor for your records.
These numbers can be found on the Serial Plate on the rear of the cabinet
and/or inside the vendor. Refer to these numbers on all correspondence and
inquiries pertaining to this vendor.
Remove the shipping skids by supporting the vendor from below, inserting a
large screwdriver or prying tool into the grove and splitting it in two. After
removing the pieces, turn the leveling screws in as far as possible. (See Figure 1).
Figure 1. Remove Shipping Skids

4| MULTI-ZONE / FROZEN FOOD VENDOR • 3576 • 4222618A
INSTALLATION
•This vendor should only be installed where it can be overseen by trained personnel.
•The maximum safe tilt angle of this vendor is 10°.
•Do not attempt to move the vendor by hand; it should only be moved using equipment
with the proper load rating.
•Consult local, state and federal codes and regulations before installing the vendor.
•Retrieve the keys to the vendor from the coin return cup.
•Open outer door and remove all internal packing material.
Position and level vendor prior to connecting vendor to power. All set up
must be completed prior to prevent harm to the installer or vendor.
POWER CORD INSTALLATION
The power cord is a 14 gauge cord and is fastened to
rear mounting box so it stays with the machine and
doesn’t get changed with a lighter gauge cord. The
power cord is connected and routed under the cover
as shown in Figure 2. Keep power cord secured on
the center back of the cabinet until the vendor is
placed into its final location to prevent damage to the
cord.
Position the vendor in its place of operation no
further than nine feet from the power outlet or
receptacle. Check that the door will open fully
without interference. Leave at least four (6”) inches
of space between the back of the vending machine
and any wall or obstruction for proper air
circulation.
Figure 2. Power Cord
LEVEL THE VENDOR
All levelers must touch the floor. The vendor must be level for proper operation,
cabinet to door alignment, condensate drainage, and for acceptance of coins
through the coin mechanism.
GROUNDING (EARTHING) & ELECTRICAL
Before connecting the vendor, the integrity of the main electrical supply must be checked
for correct polarity, presence of ground (earth) and correct voltage. Please refer to the
Safety Manual and Installation Guidelines Manual (P/N 4206816) that shipped in the
service package with your vending machine. These checks should be repeated at six (6)
month intervals with the routine safety electrical testing of the vendor itself.
If the receptacle is not properly grounded or polarized, you should contact a licensed
electrician to correctly polarize and/or ground the receptacle to ensure safe operation.
For proper operation of any equipment utilizing electronically controlled
components, the equipment should be placed on an isolated or dedicated noise-
free circuit, properly polarized and grounded.

MULTI-ZONE / FROZEN FOOD VENDOR • 3576 • 4222618A | 5
MAIN POWER SWITCH
Plug the power cord to a dedicated power
outlet. Open the vendor door. Turn on the
main power switch located on the center
right hand side of the vendor. See Figure
3.
Figure 3. Power Panel
LOADING PRODUCTS
Load product from front to back making sure all items fit freely between the auger spaces.
Do not attempt to force oversize items or packages into the spaces. Do not skip a space.
Place the product on the bottom of the compartment on the product augers with the label
facing the front of the vending machine for easy identification by the customer. See Figure .
SNACK/CANDY/FOOD TRAY OPTION
To load products, lift the tray slightly and pull
forward until the tray stops. The trays tilt for
easier loading.
The size of the item being vended must be
larger than the diameter of the auger being used
to vend properly.
Undersize items could cause vend problems. If
the product does not fit the auger properly, use
a different pitched auger (see Figure 4). Augers
available from your distributor or service entity.
Figure 4. Loading Products

6| MULTI-ZONE / FROZEN FOOD VENDOR • 3576 • 4222618A
PRODUCT
PART NUMBER
TYPE
WIDTH
(INCH)
THICK
(INCH)
QTY
CANDY 2.75
0.50
30
4200272.103309
0.66
24
4200272.102309
0.94
18
4200272.101309
1.19
15
4200272.100309
1.50
12
4200272.104309
2.03
9
4200272.105309
3.09
6
4200272.106309
CAN/BOTTLE
2.75
3.09
6
4200272.106309
DISPENSER (12 OZ CAN)
4.84
2.59 DIA
8
4214090
SNACK 5.50
1.19
15
4200272.109309
1.50
12
4200272.108309
1.81
10
4200272.107309
2.62
8
4200272.111309
2.69
7
4200272.110309
TRAY ADJUSTMENTS
By re-timing the augers, difficult-to-vend items can be dispensed more dependably. By
altering tray spacing, larger items can be vended. By changing the tray configuration,
different product mixes can be accommodated.
VERTICAL SPACING
The trays can be adjusted up or down in half-inch increments to provide additional
headroom for vending taller products. When increasing the height in one area, the same
amount of room will be lost at the tray above or below the one being adjusted.
3 WIDE SNACK/CANDY/FOOD TRAY
1. Pull out the tray to be adjusted until it stops.
2. Disengage the tray harness from its harness retainer on the right side wall. See
Figure 5a on page 7. Disconnect the tray plug from its receptacle on the right side
wall.
3. Lift up on the rear of the tray and remove it from the vendor.
4. Disengage both left and right tray rails from their corresponding slots on the left and
right side walls by removing two screws holding each rail in place.
5. Relocate both left and right rails by reversing step 4. Rails must be level from front
to back and evenly spaced from top to bottom of each side.
6. Replace the tray by placing its rear rollers on the left and right rails and lifting up on
the front of the tray as it is pressed back.
7. Install the tray plug into its receptacle on right side wall.
8. Re-engage the tray harness into its harness retainer. See Figure 5a
9. Test vend the tray in its new position to assure that the tray plug is properly seated.