Cornelius MJ30-4 PC, MJ32-4 PC, MJ30-4 PB, MJ31-4 PC, MJ31-4 PB User Manual
...
MILLENNIUM (MJ30-4 PB)
(MJ31-4 PB)
(MJ32-4 PB)
(MJ30-4 PC)
(MJ31-4 PC)
(MJ32-4 PC)
INSTALLATION & SERVICE
MANUAL
IMI CORNELIUS INC.
One Cornelius Place, Anoka, Minnesota 55303
Phone (800) 238-3600 or (612) 421-6120 Fax (612) 422-3255
Part No. 85318
Rev. B 2/99
Table of Contents
Description ...............................................................................................................................Page 2
Specifications ...........................................................................................................................Page 3
Receiving & Unpacking...........................................................................................................Page 4
Installation................................................................................................................................Page 4-6
• Connect Drain
• Connect Water Supply
• Fill Ice Water Bath
• Connect Power Supply/Start Refrigeration
• Purge Air from System
• Connect B-I-B Concentrate
• Priming the Concentrate Pumps
• Sanitizing prior to Initial Use
• Apply Sealant to Base & Counter Top
Programming Instructions........................................................................................................Page 6
Brixing Concentrate .................................................................................................................Page 6
Cleaning & Sanitizing the System............................................................................................Page 7-8
• Flushing the Concentrate Lines & Valves
• Cleaning & Sanitizing the Concentrate Lines & Valves
Daily Cleaning & Maintenance................................................................................................Page 8
Maintenance of the Refrigeration System................................................................................Page 8-9
• Cleaning of the Refrigeration Components
• Ice Water Bath Cleaning
Troubleshooting Guide.............................................................................................................Page 10-17
Wiring Diagram........................................................................................................................Page 18
Exploded View/Parts Identification .........................................................................................Page 19-29
Recommended Spare Parts (Service Agents Only)..................................................................Page 32
Optional Accessories................................................................................................................Page 33
Warranty...................................................................................................................................Page 34
1
General Description
The Millennium™ is a state of the art four product B-I-B juice
dispenser. It’s integral high performance, dual speed peristaltic mini
pumps eliminate the need to purchase separate B-I-B pumps. The
Millennium™ can draw product directly from the B-I-B’s up to 50
feet away (15 feet vertically) allowing for greater installation
flexibility! Additionally, the Millennium™ incorporates a unique
valve assembly which mixes the concentrates more thoroughly than
similar models.
Wilshire realizes that counter space is at a premium in any
operation. The Millennium™ maximizes the use of counter space by
providing four product capability in a 15 inch wide chassis. Because
the air circulation is through the top, the Millennium™ can be
installed with zero clearance in the back. For improved
serviceability, all components can be accessed through the top or
front without disturbing equipment placed on either side.
With it’s innovative compact design, reduced operating expense, ease of use and service we’re certain the
Millennium will meet the most demanding conditions for many years to come.
2
9-1/2 in.
30 in. (76.2 cm)
(24.13 cm)
Specifications
15 in. (38.1 cm)
28.25 in. (71.75 cm)
Model Number .........................................................................................................................MJ30-4
Electrical Ratings .......................................................................... 115VAC / 1 Phase / 60 Hz, 10 Amps
Electrical Connection .................................................................... 3 Prong Plug w/ Ground (supplied)
....................................................................................................... 2 Prong Plug w/ Ground (supplied with
....................................................................................................... export modles)
Power Supply ................................................................................ 15 Amp @ 120 volts
....................................................................................................... 10 Amp @ 220 volts
Water Requirements...................................................................... 3/8 in. (9.5 mm.) SAE male flare inlet
....................................................................................................... 20-100psi (1.4-7bar) max. static
pressure
....................................................................................................... 3.0 oz. (88.7 ml.) water flow per second
Refrigeration.................................................................................. 8.5 oz. R-134a Refrigerant
....................................................................................................... 1/3 hp. Compressor
....................................................................................................... Test Pressures:
....................................................................................................... High 460 psi (31.2 bar)
....................................................................................................... Low 200 psi (13.5 bar)
....................................................................................................... Air Cooled Condenser
Recommended Clearance..............................................................18 in. (45.72 cm.) on top, 4 in. on sides
Weight........................................................................................... Shipping, 150 lbs (68.1 kg.)
....................................................................................................... Operation, 241 lbs (109.4 kg.)
Approvals ...................................................................................... U.L., C.U.L., N.S.F.
* Low speed rating is 2/3 of the high speed
3
Receiving & Unpacking
1. Inspect the carton and note any damage,
regardless if it appears minor. If the carton is
damaged, note on the consignee copy of the
freight invoice “exterior carton damage concealed damage possible.”
4. Remove the four 9/16” (15 mm) retaining
bolts from the underside of the shipping
pallet by carefully tilting the dispenser from
side to side.
5. With the assistance of another person, lift
the dispenser from under the base and place
it on the counter.
2. Cut the plastic banding strap and remove the
exterior carton sleeve, internal fillers and
plastic bag around the dispenser. Carefully
inspect for damage.
Note: IMI Cornelius is not responsible for
damaged freight. If damage is found, you
must save all packaging material and
contact the freight carrier. Failure to
contact the carrier within 48 hours of
receipt may void your claim.
3. Confirm receipt of the installation kit
#720202300 packaged with the dispenser. If
any item is missing, contact our customer
service department at 1-800-238-3600
Monday - Friday between the hours of
8:00 AM and 4:30 PM CST.
Kit Contents:
Qty Description
4 3/8” barb
4 3/8” swivel nut
5 3/8”x3/8” elbow barb
6 3/8” nylon washer
10 #170 clamps
10 ft. 3/8” braided tubing
4 ft. 1/2” I.D. clear tubing
1 1/2”x1/2” 90o elbow
4 Generic B-I-B connectors
2 Flavor strip kits
1 Installation template
The dispenser is extremely heavy when
operational. Make certain the counter can
support a minimum of 300 lbs directly
below the dispenser.
Installation
Typically the dispenser is placed directly on the
counter and a food grade silicone sealant applied
around the base. However, an optional leg kit is
available. The following instructions assume the
optional leg kit will not be used.
Depending on the type of counter, it may be
necessary to provide access through
the counter at the rear of the dispenser
for the drain, power, water and
concentrate connections. Refer to the
template enclosed in the installation kit.
Connect Water Supply:
Water pipe connections and fixtures directly
connected to a potable water supply shall be
sized, installed, and maintained according to
federal, state, and local laws.
Wilshire recommends that a ½” O.D. copper
supply line with a shut-off valve and water filter
be located within 3-6 feet (0.91-1.83 m) of the
dispenser.
a. Assemble the 3/8” braided water supply line
furnished in the Installation Kit by attaching
the straight barb on one end and the elbow
barb on the other. Secure with clamps
provided.
4
b. Insert a 3/8” nylon washer into the elbow
barb of the supply line. Connect the
assembled
supply line
to the water
inlet fitting
located on
the rear of
the dispenser.
c. Connect the water supply line to the shut
off. Turn on the water and check for leaks.
NOTE: The dynamic water pressure must be 20
PSIG (1.4 bar) minimum to ensure correct valve
flow control and must not exceed 100 PSIG
(7 bar) to avoid valve damage.
Connect B-I-B Concentrate
a. Attach the supplied 3/8” (9.5mm) elbow
barbs to the end of each 3/8” I.D. B-I-B
concentrate supply line (not supplied).
Secure with clamps provided. Insert a 3/8”
nylon washer into the elbow barb and
connect the supply lines to the rear of the
dispenser noting the valve numbering
(numbered 1-4 from left to right as viewed
from the front of the dispenser).
b. Route the concentrate supply lines to the
B-I-B location and attach the gray plastic
B-I-B connector (supplied) to the end of
each line. Secure with clamps provided.
Fill Ice Water Bath:
a. Remove the top cover
b. Remove the large red plastic plug from the
filler hole in the top of the refrigeration
deck.
c. Fill the water bath with cool water until it
begins to trickle out of the overflow tube.
d. Reinstall the red plastic plug and top cover.
Connect Power Supply / Start
Refrigeration:
a. Start the refrigeration system by plugging
the power cord into a 115 VAC (+ 10%),
15 amp grounded receptacle.
The Millennium forms an ice bank of
approximately 30 lbs (13.61 kg) in 4-5 hours at a
room temperature of 75oF (24oC). Once the ice
bank has grown to the proper size, the ice bank
control will shut down the refrigeration circuit.
NOTE: It is normal to see water trickle from
the over flow as the ice bank forms.
Connect Drain:
a. Attach the clear drain hose to the barb fitting
on the drip tray. Route the drain hose out
from the rear of the dispenser and connect it
to a suitable drain source, ensuring
compliance with all federal, state, and local
plumbing codes. Slide the drip tray into
place.
Purge Air from the Water Coil
Prior to initial use, purge all air from the valves
by pushing the dispensing switch repeatedly.
Continue until a steady flow of water is
observed. Repeat the above on the remaining
valves.
Priming the Concentrate Pumps
a. Turn off the water supply.
b. Connect the concentrate lines to their
respective B-I-B.
c. Depress and hold each start button until
concentrate is observed flowing from the
dispense nozzle.
d. Turn on the water supply.
5
Sanitizing Prior to Initial Use
L.E.D.
CANCEL/POUR
The beverage system must be cleaned and
sanitized after installation is completed to safe
guard against any possible contaminants which
may have entered the system during transport or
installation. Refer to the “Cleaning & Sanitizing
the System” section of this manual for
procedures.
Apply Sealant to Base & Countertop
NOTE: The portion control has a full memory
retention in case of a power failure.
SMALL
S
MEDIUM
M
LARGE
L
▲▼
EXTRA-LARGE
XL
If the optional legs are not used to raise the
dispenser off the counter, the entire perimeter of
the base must be sealed at the counter top with
silicone (or other food grade approved sealant)
in order to comply with N.S.F. standards. Refer
to the template supplied in the Installation Kit.
Programming Portion
Control (optional)
a. Simultaneously, press and hold “S” (small)
and “XL” (extra large) push button switches
on the Coded Autoset Portion Control
Module until the LED light in the lower
right hand corner of the module starts
blinking. Release the switches. The blinking
LED indicates the programming mode is
active.
b. Place the cup under the white mixing valve
nozzle and push the selected size button
(small, medium, large, or extra large). Hold
the button in until the cup fills to the desired
portion, then release the button. Repeat the
above procedure for the remaining sizes.
CANCEL/POUR ▲▼:
a. Push and release cancel/pour button to stop
the valve from dispensing.
b. Push and hold for a continuous pour.
Brixing Concentrate
The following procedures describe how to adjust
the water to concentrate ratio (brix) according to
taste. Contact your concentrate supplier for
recommended brix ratios.
a. Remove the flavor strip cover above the
dispense valves.
b. Sample the finished drink. Increase or
decrease the water ratio by turning the water
flow control screw clockwise (more water)
or counterclockwise (less water) until the
desired water to concentrate ratio is
achieved. Repeat procedure on remaining
valves.
c. Replace the flavor strip cover.
c. After programming all the drink sizes, press
and release the “cancel/pour” ▲▼ switch to
return the Coded Autoset Portion Control to
the operational mode. The blinking LED
light will go out.
d. If at a future date, it is decided to change the
portion size of the drinks, the individual
sizes can be adjusted by the above
procedure. It is not necessary to reprogram
every size.
NOTE: If the flow control does not respond
there may be debris caught between the internal
ceramic spool and sleeve. Try dislodging the
debris by pressing the dispense switch several
times or turning the flow control adjustment
screw all the way in and out several times.
6
Cleaning & Sanitizing the
System
c. Connect the bag valve to the gray bag
connector and submerse the parts in the
bucket of hot water.
The dispenser must be cleaned and sanitized
after installation and as required by state and
local health departments, or every 3 months
minimum. Your state or local health codes may
require more frequent and extensive sanitizing
procedures.
Cleaning and Sanitizing Equipment
and Supplies:
• Recommended sanitizer/cleaner:
Stera-Sheen® Green Label prepared to
ensure 200 ppm of available chlorine
(one-2 oz. packet/1 gallon (3.8 L) of water =
200 ppm). Solution temperature should be
between 80°F - 100°F (26.7°C - 37.8°C).
• One clean 5 gallon (19 L) bucket
• One clean 1 gallon (3.9 L) container or
bucket
• Clean non-abrasive clothes
• A small brush
• Three empty bag in the box bags (to cut
valve fittings off)
Flushing the Concentrate Lines &
Valves
Cleaning and sanitizing is not required for
potable water circuits. Potable water lines
should remain connected and operational during
the cleaning and sanitizing procedures for juice
circuits.
a. Fill the 5 gallon (19 L) bucket with clean
extremely hot tap water, approximately
140oF (60oC).
b. Take the three empty bag in the boxes and
remove the bags from the carton. With
scissors, cut the bag valve off of the bag and
clean the valve by rinsing it under hot tap
water.
d. Depress and hold the dispense button until
the concentrate has been fully purged from
the product lines and valves.
IMPORTANT
Do Not flush more than three valve circuits
simultaneously.
e. Once the concentrate is purged, pulse each
valve for 15 seconds on and then release the
button. Repeat this pulsing for 15 cycles for
each circuit being cleaned. Once the 15
cycles have been completed, allow each
valve to dispense for 3 continuous minutes.
f. Remove the nozzles and static mixers from
the dispenser and rinse them under hot tap
water to remove any remnant of excess
concentrate. Repeat for each circuit to be
cleaned.
g. Replace the nozzles and static mixers into
their proper location.
h. Discard any remaining hot water left in the
bucket.
Cleaning & Sanitizing the
Concentrate Lines and Valves
a. Prepare 5 gallons (19 L) of Stera-Sheen®
Green Label cleaning and sanitizing solution
by mixing one 2 oz. packet/1 gallon (3.8 L)
of potable water. This will provide enough
sanitizing solution to clean and sanitize all 4
concentrate circuits for most installations.
Installations that have 50 or more feet of
concentrate line may require more sanitizing
solution.
IMPORTANT
Use potable water at 80°F-100°F (26.7°C-
26.7°C) to create solution. Water
temperatures above this range will
breakdown the chlorine count and minimize
sanitation.
7
b. Submerse the bag connector and bag valve
assembly into the bucket of sanitizing
solution.
Daily Cleaning and
Maintenance
c. Depress and hold the dispense button until
sanitizing solution is dispensed through the
mixing valves nozzle.
d. Pulse each valve for 15 seconds on and then
release the button. Repeat this pulsing for 15
cycles for each circuit being sanitized. Once
the 15 cycles have been completed, allow
the sanitizing solution to stand in the
product lines and valves for 30 minutes.
e. While waiting, remove the nozzles and static
mixers and place them into a separate
container with 2 qts. (1.9 L) of sanitizing
solution. Agitate vigorously using the small
brush to remove any excess concentrate.
Allow the parts to soak for 30 minutes.
f. Clean the dispensing valves mixing chamber
with the brush and sanitizing solution (this is
the cavity from which the nozzle is
removed).
a. On a daily basis, clean the external cabinet
splash areas using a clean damp cloth.
Remove and wash the cup rest, dispensing
nozzles, and static mixers with clean water.
Wipe dry with a clean soft cloth.
b. Wipe the drip tray in place on the unit, wash
the tray out with a mild soap solution, then
rinse the tray by pouring water down the
drip tray’s drain.
c. Clean all external surfaces of the dispenser
with a sponge and a mild soap solution.
Rinse the sponge out with clean water, then
wring the excess water from the sponge and
wipe all external surfaces of the dispenser.
d. Wipe the dispenser dry with a clean soft
cloth. DO NOT USE ABRASIVE TYPE
CLEANERS. Install the cup rest,
dispensing nozzles, and static mixers on the
dispenser.
g. Replace the nozzles and static mixers into
their proper locations and discard the
sanitizing solution used to soak them in.
Note: Do not reuse the sanitizing solution used
to clean the nozzles, static mixers, etc.
h. Activate the dispensing valves for two more
cycles (15 seconds on then off) with
sanitizing solution then run solution
continuously through the dispensing valves
for 2 minutes.
i. Disconnect the bag valves from the gray bag
connectors and re-connect the bag
connectors to their appropriate product bags.
j. Depress and hold each dispense button until
juice appears at the outlet of the dispensing
nozzle. Dispense and discard two 8 oz.
(237 ml) cups of juice and verify that there
is no chlorine off taste
Maintenance of the
Refrigeration System
Cleaning of the refrigeration components
should be performed by a qualified service
technician.
a. Continuous maintenance of this dispenser is
a basic requirement for proper operation and
sanitation, including all support equipment
utilized in the daily operation of this
equipment.
b. Cleaning of the Refrigeration Components:
c. Disconnect the power before removing the
top bonnet of the dispenser.
d. The dispenser’s ventilation grilles and the
condenser fins should be cleaned
periodically to maintain efficient
refrigeration and to avoid compressor
failure. The condenser fins can be cleaned
8
with a vacuum cleaner or a soft bristle
brush.
e. Clean the exterior surfaces of the
compressor, agitator motor, fan motor, and
fan blade with a damp cloth to wipe off the
accumulated dust.
Ice Water Bath Cleaning
The water bath should be cleaned to obtain
maximum cooling efficiency. It is recommended
that the water bath be cleaned two to four times
annually, depending upon local conditions
and/or as required by state and local health
departments.
A convenient time to do this is at the time the
dispenser is being sanitized. To save time, the
water bath can be drained while the dispenser is
being sanitized.
a. Remove the cup rest and splash panel to
access the water bath’s drain hose. Extend
the drain hose to a suitable waste receptacle
and allow the water bath to drain.
b. Remove the dispenser’s top bonnet by
removing the two screws located on the top
of the bonnet. While lifting the bonnet up
and away from the dispenser, unplug the
merchandiser electrical cord from the power
strip located on the refrigeration deck.
c. In order to remove the refrigeration deck for
the water bath and evaporator cleaning,
remove the two screws that secure the deck
to the cabinet structure. Unplug the
refrigeration deck’s main power strip cord
from the dispenser’s power cord. Disconnect
the red, white and blue 12 pin plugs from the
electrical box. Disconnect the key switch a
by unplugging the white 2 pin plug at the
transformer.
Note: It will be necessary to melt the ice bank
to be able to pull the refrigeration deck up and
away from the dispenser. Warm water may be
used to accelerate the melting. In order to
prevent ice bank control damage, do not direct
the warm water stream on to the sensing bulb
of the ice bank control. Never use an ice pick
or other instrument to remove ice from the
evaporator. Such practice can result in a
punctured refrigerant circuit or damage to the
water bath tank.
d. Once the ice bank is sufficiently melted, lift
the entire refrigeration deck up and away
from the water bath by lifting the deck using
it’s service handle strap.
e. Prepare 1 gallon (3.9 L) of cleaning and
sanitizing solution (see “Sanitizing the
Concentrate Lines & Valves”). Pour the
cleaning and sanitizing solution into the
water bath and clean the sides and bottom of
the tank, the product coils, and associated
brackets with a fiber brush.
f. Utilizing the cleaning and sanitizing solution
in the water bath, the fiber brush, and a
clean cloth soaked with sanitizing solution,
clean the refrigeration deck’s evaporator
coils, agitator motor shaft and blade, and the
ice bank sensing bulb.
g. Drain the cleaning and sanitizing solution
from the water bath and rinse/flush all the
components with clean water.
h. Re-install the refrigeration deck into the
water bath and secure with two screws.
i. Connect the refrigeration deck’s power strip
to the dispenser’s power cord. Connect the
red, white and blue 12 pin plugs to the
electrical box. Connect the key switch to the
transformer.
j. Fill the water bath with cool potable water
until water begins to flow from the overflow
tube.
k. Plug the merchandisers power cord into
power strip located on the refrigeration deck
and re-install the top bonnet. Secure the
bonnet assembly with two screws.
l. Install the splash panel and cup rest and plug
the dispenser’s power cord into the electrical
outlet.
9
Troubleshooting Guide
Problem Probable Cause Remedy
DISPENSER IS TOTALLY
INOPERATIVE
DISPENSER WILL NOT
COOL
Drink temperature should be
35-45°F (2-7°C)
No power present at the
source.
Power is present at the
source...dispenser is still
inoperative.
Refrigeration shut off switch
is in the off position.
Low water bath level.
Depleted ice bank ( not
applicable after period of
heavy usage.)
Check the power circuit for a blown
fuse or tripped circuit breaker. Check
the supply line for the proper
amperage and voltage
ratings.....dedicated 15 amps /115
volts.
Check the power cord connection
located behind the front splash panel.
Refrigeration shut off switch is
located on the top of the dispenser .
This switch will disable the
compressor and the condenser fan
motor. Be sure the switch is in the on
position.
Check water bath level. If 2 gallons
or more are added, cause of problem
has been confirmed.
Check compressor. If running, allow
the system time to recover
(approximately 1 hour). If
compressor is not running or the
system is not recovering see the
Refrigeration System
Troubleshooting section.
WITH POWER PRESENT,
UNIT WILL NOT DISPENSE
ALL VALVES.
Defective Ice bank control.
Key lock switch in the OFF
position.
Transformer not connected or
defective.
Fuse blown between the
transformer and voltage
regulator boards.
10
See Refrigeration System
Troubleshooting section.
Check position of the key lock
switch. Check for loose wire
connections. Run continuity check,
replace as needed.
Check the connection between the
power strip and the transformer.
Check transformer output at terminal
junction on control box for 26 VAC.
Check the fuse located in the
electrical box, left side. This box is
located on the refrigeration deck and
will require the removal of the upper
bonnet. Replace fuse as needed.
Troubleshooting Guide
Problem Probable Cause Remedy
UNIT DISPENSING
CONCENTRATE ONLY NO
WATER TO ALL VALVES
FROM SINGLE VALVE
UNIT WILL NOT DISPENSE
WATER OR
CONCENTRATE.
No water reaching dispenser
from the water supply line.
Water pressure over 100 psi or
7 bar. High pressure will not
allow the water solenoids to
open.
Freeze up of water coil.
Inoperative or defective push
button switch, or portion
control board.
Defective Voltage Regulator
(VRB) board.
Check line to see if the water is shut
off at the source.
Install regulator onto incoming water
line to reduce the pressure to between
30 and 80 psi. (2-5- bar).
Refer to the Refrigeration System
Troubleshooting section.
Check for loose or broken wire
connections at the switch. Check the
continuity of switch. Replace as
needed.
The VRB boards are contained in the
electrical box mounted on the
refrigeration deck.. There is one for
each valve.
CAUTION: Access to this panel
requires the removal of the upper
bonnet while the dispenser is
energized and operational.
Check the power input for 26 VAC
and the output for 28 VDC.
FROM SINGLE VALVE,
UNIT IS DISPENSING
CONCENTRATE ONLY.
Inoperative water valve
solenoid coil.
Solenoid makes clicking
sound when energized, but
still does, not function.
Flow control binding or
defective.
11
Check to see all wire connections are
secured at the coil. Check power for
26 VDC. If power is present, coil
maybe defective , replace as needed.
Armature maybe stuck, disassemble
and check function. Return spring
could also be defective replace as
needed.
Disassemble the coil assembly and
check plunger seal for defects.
Replace as required. Inspect valve
seat for restrictions.
Disassemble flow control assembly
and check the spool and sleeve
assembly . Be sure the spool moves
freely within the sleeve and there are
no restrictions.
Troubleshooting Guide
Problem Probable Cause Remedy
FROM SINGLE VALVE,
UNIT IS DISPENSING
WATER ONLY.
Concentrate container empty.
BIB connector is not engaged
or improperly installed.
Air leak in product suction
line.
No power at the pump motor.
Defective gear motor
assembly.
Replace.
Check BIB connector for proper
installation. Plunger should be
completely inserted with concentrate
filling the line to the dispenser.
Check the 3/8 flare connection where
the product line attaches to the unit.
Tighten fitting using a flare gasket. If
line is drawing air, pump will not
prime.
Check for broken or loose wire
connection going to pump motor.
Check for 26 VDC at pump motor
when the dispense button is
energized.
Check motor function by energizing
circuit with the dispense button. If
motor runs, but pump does not turn, a
broken gear box is indicated. The
pump motor and gear box are
replaced as a unit.
DISPENSER IS BRIXING
OUT TOO HIGH.
Pump running backwards.
Defective concentrate pump
tubing.
Supply water pressure too low.
Defective flow control.
Check the direction of pump
rotation...correct rotation is clockwise
as viewed from the front of the unit.
If pump is turning in a counter
clockwise direction, this indicates the
pump wires are reversed.
Check the pump tubing for ruptures,
wear, etc. Replace as needed
following the instructions printed in
this manual.
Water pressure must be 20 psi
flowing or above.
Disassemble and check flow control
assembly for binding, defective
compensating spring , trapped debris.
Be sure the spool moves freely within
the sleeve, replace parts as needed.
12
Troubleshooting Guide
Problem Probable Cause Remedy
DISPENSER IS BRIXING
OUT TOO HIGH. (Cont.)
DISPENSER IS BRIXING
OUT TOO LOW.
Low viscosity or highly
concentrated concentrate.
Example 11 to 1 ratio.
Supply water pressure is too
high.
Defective or improperly
regulating flow control .
Locate the pump switches grouped
behind the front splash panel. They
are marked SPEED SWITCH with
the corresponding valve number.
Placing the switch in the low position
slows down the concentrate pumping
rate requiring less water to brix.
Water pressure has a high limit of
100 psi/ 7 bar or over. Place regulator
in supply line to bring pressure down
to 4 bar/ 50 psi flowing.
High water pressure will cause the
flow control not to regulate properly.
If the problem exists after the
pressure has been reduced to 50 psig/
4 bar, the flow control maybe
defective.. Disassemble and check the
spool and sleeve function and the
compensating spring . Replace parts
as required.
Speed switch in the low
position.
Air leak in the concentrate
suction line.
Worn concentrate pump
tubing.
Defective poppet valve and or
spring.
Pump speed switch is in the low
position. Move switch to high
increasing the pumping rate of the
concentrate.
Check that the concentrate line
connection is secured tightly to the
dispenser with the proper gaskets.
Check the connector at the
concentrate source to be sure it is
properly attached.
Remove the front half of the
concentrate pump and inspect the
tubing . Worn or stretched tubing will
decrease the amount of concentrate
pumped. After 1 year tubing should
be replaced.
Disassemble the right side of the
valve which contains the syrup
poppet assembly. Be sure the valve is
not binding, free of debris, return
spring is actuating and the diaphragm
is not torn or punctured.
13
Troubleshooting Guide
Problem Probable Cause Remedy
WATER LEAKS FROM
BOTTOM OF DISPENSING
VALVE.
WATER CONTINUOUSLY
DRIPS FROM NOZZLE.
UNIT CONTINUES TO
DISPENSE AFTER BUTTON
HAS BEEN RELEASED.
Nozzle pieces improperly
assembled.
Water solenoid valve not
shutting off tightly.
Inoperative or defective push
button switch, or portion
control board.
Relay on voltage regulator
board hangs up or is stuck
open.
Static mixer inserted in nozzle body
upside down. Cone shaped end must
be visible when remounting the
nozzle assembly to the dispenser.
Disassemble water solenoid located
at the valve and check for foreign
material in the valve seat. Check the
armature for binding, check the
plunger and the seat for defects.
Replace parts as needed.
Check the operation of the push
button for sticking. Check continuity
of switch. Replace as needed.
CAUTION: Access to this panel
requires removal of the bonnet while
the dispenser is plugged in and
operational. *Voltage regulator board
is found in the electrical box mounted
to the refrigeration deck. There is one
board for each valve. Gently tap the
relay. If dispensing stops, relay was
hung up . If tapping the relay solves
the problem, it should be noted that if
a relay sticks once , it will probably
stick again. Replace as needed.
TWO OR MORE PUMPS
OPERATE WHEN ONLY
ONE BUTTON IS PUSHED.
Defective Voltage Regulator
(VRB) Board.
Insulator pad missing or not
properly positioned between
the transistor on VRB board
and mounting bracket.
14
Pull the connector marked DOOR ,
lower right hand connector on the
VRB board. If the unit still continues
to dispense the VRB board is
defective and needs to be replaced.
On the valve that is dispensing in
error, check the insulator pad
between the transistor on the top of
the VRB board and the mounting
bracket. If this pad is missing or
improperly aligned, the VRB board
will make contact with the bracket.
Current will run through the bracket
and set off the valve. Refer to
drawing found in this manual.
Troubleshooting Guide
Problem Probable Cause Remedy
TWO OR MORE PUMPS
OPERATE WHEN ONLY
ONE BUTTON IS PUSHED.
(Cont.)
WITH POWER PRESENT
DISPENSER WILL NOT
COOL
Drink temperature should be
35-45°F
2-7°C
VRB Board mounting screw
insulator is missing or
improperly installed.
Refrigeration shut off switch
is in the off position.
Depleted ice bank (not
applicable after period of
heavy usage.)
Check the corresponding VRB board
to the valve that is dispensing in
error. Where the screw mounts the
transistor to the bracket, be sure that
the spacer bushing is present and the
screw is not over tightened. Screw
contact with the bracket will cause a
short and the firing of the valve when
other valves are energized.
Refrigeration shut off switch is
located on the top of the dispenser.
This switch will disable the
compressor and condenser fan motor.
Be sure the switch is in the on
position.
Remove rear bonnet covering the
refrigeration deck. CAUTION should
be observed when working in this
area as the dispenser is energized and
operational. Check to see if the
compressor is running . If so allow
the system to recover (approximately
1 hour).
WITH POWER PRESENT
COMPRESSOR WILL NOT
RUN.
(Compressor shell is cold to
touch.)
COMPRESSOR RUNS BUT
NO COOLING IS TAKING
PLACE.
Loose or broken wire
connections.
Defective compressor start
component.
Ice bank control not connected
or defective.
Low refrigerant charge.
Refrigerant restriction.
Check the wire connections at the
compressor. Be sure they are tightly
secured.
Check the compressor start relay.
Replace as required.
Check the ice bank control
connections. To test, place jumper
between the 2 leads. If the
compressor starts ,the ice bank
control is defective.
Contact a refrigeration service
technician. They will check for leaks
(sign of oil at joints and fitting) and
will recharge if necessary.
Refrigeration technician will examine
the system for, kinks in lines,
restrictions, etc. Heat exchanger may
need to be replaced.
15
Troubleshooting Guide
Problem Probable Cause Remedy
COMPRESSOR RUNS BUT
NO COOLING. TRIPPING
OVERLOAD.
(Compressor shell is hot to
touch).
Condenser fan not running.
Inadequate air flow through
the dispenser.
Blocked condenser fins.
Ambient air over 100°F 38°C.
Check that the condenser fan is
running. If the fan is binding or
turning slowly, an overload condition
will occur.
Air flow is top front in, exhaust out
the rear. NEVER PLACE
ANYTHING ON TOP OF THE
DISPENSER. This will block the
airflow over heating the compressor
and causing it to trip the overload.
Remove the rear bonnet and check
the condenser fins. If unit is run in a
dusty environment, condenser fins
can become clogged, stopping the air
flow.
Brush out and clean with vacuum.
If the dispenser is working in an
environment over 100° ambient or is
drawing in discharged air, during a
heavy period, the unit may trip the
overload.
UNIT IS DISPENSING
CONCENTRATE ONLY
REFRIGERATION SYSTEM
HAS BEEN RUNNING FOR
EXTENDED PERIOD
WITHOUT SHUTTING OFF
FROZEN WATER COIL.
Defective overload.
Defective compressor.
Insufficient water level in the
water bath.
Agitator motor not operating.
Improperly located ice bank
control sensor.
Overload works on shell temperature
and amperage draw and can be
defective. Replace as needed.
Refrigeration technician will verify if
the compressor is defective and needs
to be replaced.
See the Start-up and Operation
Section of this manual. Be sure the
water bath is filled to fill line.
Check the agitator motor located on
the refrigeration deck. Be sure it is
plugged in and receiving power.
Check that the impeller is not
obstructed. Replace if needed.
Melt the ice bank and check the
location of the sensing bulb. Be sure
it is all the way down to the bottom
of the tube.
16
Troubleshooting Guide
Problem Probable Cause Remedy
UNIT IS DISPENSING
CONCENTRATE ONLY
REFRIGERATION SYSTEM
HAS BEEN RUNNING FOR
EXTENDED PERIOD
WITHOUT SHUTTING OFF
FROZEN WATER COIL.
Compressor not cycling off. Check the ice bank control. Be sure
that the control has not overheated
and fused the contacts together.
Replace as required.
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