Lancer Escort III Parts List
REV: 03/31/06
P.N. 28–0003/04
INSTALLATION AND SERVICE MANUAL
FOR THE
ESCORT III, JUICE DISPENSER
This manual supersedes Installation and Service Manual 28-0003/03, dated 01/30/03
SPECIFICATIONS
DIMENSIONS:
• Width 14 1/16 inches (357 mm)
• Depth 23 1/8 inches (587 mm)
• Height (with legs) 26 1/2 inches (673 mm)
WEIGHT:
• Shipping 152 pounds (68.95 kg)
• Empty 135 pounds (61.24 kg)
• Operating 180 pounds (81.65 kg)
ELECTRICAL REQUIREMENTS (Running):
• 115V/60Hz 7 Amps
WATER REQUIREMENTS:
• Minimum flowing pressure of 25 PSI (1.76 kg/cm2) at a
flow rate of three (3) ounces (88.7 mI) per second.
•
Connection 5/8 inch - 18 male flare (3/8 inch flare).
COMPRESSOR: 1/3 HP
CONCENTRATE CONTAINER CAPACITY:
• Left container 128 ounces (3.79 Liters)
• Middle container 106 ounces (3.14 Liters)
• Right container 128 ounces (3.79 Liters)
• Concentrate container 35
o
F (1.7oC)
constant temperature
• Ice bath water capacity 320 ounces; 2.5 U.S. gallons
(9.07 kg; 9.46 L)
• Ice bank 8.0 pounds (3.63 kg)
DRINK CAPACITY:
Four (4) five (5) ounce (148 cc) drinks per minute under 45oF (7.2oC) at 75oF (23.9oC) ambient inlet water.
Please refer to the Lancer web site (www.lancercorp.com) for
information relating to Lancer Installation and Service Manuals,
Instruction Sheets, Technical Bulletins, Service Bulletins, etc.
FAX Engineering: • 210-310-7096
"Lancer" is the registered trademark of Lancer • Copyright — 2006 by Lancer, all rights reserved
6655 LANCER BLVD. • SAN ANTONIO, TEXAS 78219 USA • (210) 310-7000
FAX SALES
• NORTH AMERICA – 210-310-7245 • INTERNATIONAL SALES – 210-310-7242 • CUSTOMER SERVICE – 210-310-7242 •
• LATIN AMERICA – 210-310-7245 • EUROPE – 32-2-755-2399 • PACIFIC – 61-8-8268-1978 •
"Minute Maid" and “Minute Pak” are registered trademarks of The Coca-Cola Company.
TABLE OF CONTENTS
SPECIFICATIONS......................................................................................................................................Cover
TABLE OF CONTENTS ...................................................................................................................................i-ii
1. INSTALLATION ...........................................................................................................................................1
1.1 RECEIVING........................................................................................................................................1
1.2 UNPACKING ......................................................................................................................................1
1.3 SELECTING COUNTER LOCATION .................................................................................................1
1.4 CONNECTING TO WATER SUPPLY.................................................................................................1
1.5 FILLING UNIT WITH WATER ............................................................................................................1
1.6 CONNECTING TO ELECTRICAL POWER .......................................................................................2
1.7 PURGING UNIT OF AIR ....................................................................................................................2
1.8 LOAD MINUTE PAKS®.......................................................................................................................2
1.9 PRIMING CONCENTRATE PUMPS ..................................................................................................2
1.10 ADJUST CONCENTRATE TO WATER RATIO (oBRIX) ....................................................................2
2. OPERATING UNIT.......................................................................................................................................4
2.1 CHANGING PRODUCT .....................................................................................................................4
2.2 OPERATING ESCORT III JUICE DISPENSERS WITH SOLD OUT FEATURE ...............................4
2.3 CLEANING AND SANITIZING INSTRUCTIONS ...............................................................................5
2.4 LIGHTED FRONT SECTION .............................................................................................................6
3. PRINCIPLES OF OPERATION ...................................................................................................................6
3.1 WATER SYSTEM ...............................................................................................................................6
3.2 CONCENTRATE SYSTEM ................................................................................................................7
3.3 CONCENTRATE LOW LEVEL INDICATOR SYSTEM ......................................................................7
3.4 ELECTRONIC CONTROL SYSTEM..................................................................................................8
3.5 DISPENSING PADDLE SYSTEM ......................................................................................................8
3.6 FLUSH SYSTEM................................................................................................................................8
3.7 REFRIGERATION SYSTEM ..............................................................................................................8
4. RELOCATING OR SHIPPING UNIT ...........................................................................................................9
4.1 REMOVING AN OPERATING UNIT ..................................................................................................9
4.2 TRANSPORTING UNIT .....................................................................................................................9
4.3 SHIPPING UNIT.................................................................................................................................9
5. PERIODIC MAINTENANCE ........................................................................................................................9
5.1 LUBRICATION....................................................................................................................................9
5.2 CLEANING WATER STRAINER ........................................................................................................9
5.3 CLEANING INLET AIR FILTER..........................................................................................................9
5.4 CLEANING CONDENSER ...............................................................................................................10
5.5 CLEANING CONCENTRATE CONTAINER COMPARTMENT ........................................................10
6. REPAIR AND REPLACEMENT.................................................................................................................10
6.1 COMPLETE FRONT PANEL REPLACEMENT................................................................................10
6.2 DRIVER PCB REPLACEMENT .......................................................................................................10
6.3 PADDLE SENSOR ...........................................................................................................................11
6.4 CONCENTRATE PUMP AND MOTOR ............................................................................................11
6.5 PUMP SUPPORT.............................................................................................................................12
6.6 CONTROL PANEL AND HOUSING .................................................................................................12
6.7 FLUSH SOLENOID VALVE..............................................................................................................12
6.8 WATER SOLENOID VALVE .............................................................................................................13
6.9 REGULATOR ASSEMBLY ...............................................................................................................13
6.10 VACUUM BREAKER ........................................................................................................................14
6.11 TRANSFORMER CABINET ASSEMBLY .........................................................................................14
6.12 ELECTRONIC ICE BANK CONTROL..............................................................................................14
6.13 AGITATOR MOTOR .........................................................................................................................15
6.14 AGITATOR DECK.............................................................................................................................15
6.15 WATER COIL CAGE ASSEMBLY ....................................................................................................15
6.16 FRONT COVER ...............................................................................................................................15
6.17 TOP COVER ....................................................................................................................................15
6.18 WRAPPER .......................................................................................................................................16
6.19 CONDENSER FAN MOTOR ............................................................................................................16
7. TROUBLESHOOTING...............................................................................................................................16
7.1 NO WATER OR CONCENTRATE ON EITHER SIDE, OR NO POWER.........................................16
7.2 NO WATER OR CONCENTRATE ON ONE SIDE ONLY ................................................................17
i
TABLE OF CONTENTS (CONTINUED)
7.3 WATER ONLY - NO CONCENTRATE .............................................................................................17
7.4 CONCENTRATE ONLY - NO WATER EITHER SIDE......................................................................17
7.5 CONCENTRATE ONLY - NO WATER ON ONE SIDE ONLY..........................................................17
7.6 NO FLUSH WATER EITHER SIDE, SYSTEM DISPENSES NORMALLY ......................................17
7.7 WEAK DRINK OR INCONSISTENT DRINK....................................................................................18
7.8 NO WATER ALL VALVES.................................................................................................................18
7.9 WATER LEAKS AT SPOUT CONNECTION ....................................................................................18
7.10 DRINK WILL NOT SHUT OFF .........................................................................................................18
7.11 CUP DOES NOT FILL COMPLETELY OR OVERFLOWS (PORTION CONTROL ONLY) .............18
7.12 NO FLUSH WATER - ONE SIDE ONLY, SYSTEM DISPENSES NORMALLY ...............................18
7.13 WATER DRIPS FROM SPOUT WHEN DRINK IS NOT BEING DISPENSED................................18
7.14 WATER LEAKING INTO CONCENTRATE CONTAINER AND/OR CONCENTRATE TUBE...........18
7.15 WATER LEAKING INTO CONCENTRATE CONTAINER DURING FLUSH CYCLE .......................18
7.16 CONCENTRATE LEAK UNDER DISPENSER ................................................................................18
7.17 AIR LEAKING INTO CONCENTRATE TUBE AND/OR CONCENTRATE PUMP............................18
7.18 RATIO CANNOT BE ADJUSTED LOW ENOUGH (OR oBRIX HIGH ENOUGH)............................19
7.19 RATIO CANNOT BE ADJUSTED HIGH ENOUGH (OR oBRIX LOW ENOUGH)............................19
7.20oBRIX VARIES FROM DRINK-TO-DRINK .......................................................................................19
7.21 CONCENTRATE LOW LEVEL INDICATOR ON BUT CONCENTRATE CONTAINER
STILL HAS CONCENTRATE REMAINING......................................................................................19
7.22 VACUUM BREAKER LEAKS WATER OUT OF END ......................................................................19
7.23 WATER CONTINUALLY OVERFLOWS FROM ICE BANK COMPARTMENT
INTO CONCENTRATE COMPARTMENT AND INTO DRIP TRAY..................................................19
7.24 COMPRESSOR STARTS AND CONTINUES TO RUN UNTIL FREEZE UP
AND WILL NOT CUT OFF ...............................................................................................................19
7.25 WARM DRINKS................................................................................................................................20
7.26 COMPRESSOR DOES NOT START (NO HUM), CONDENSER FAN MOTOR
DOES NOT RUN AND NO ICE BANK .............................................................................................20
7.27 COMPRESSOR DOES NOT START (NO HUM), NO ICE BANK, BUT
CONDENSER FAN MOTOR RUNS.................................................................................................20
7.28 COMPRESSOR DOES NOT START, BUT HUMS ..........................................................................20
7.29 COMPRESSOR STARTS AND SWITCHES OFF OF START WINDING (WILL ONLY
RUN FOR A FEW SECONDS BEFORE INTERNAL OVERLOAD SWITCHES
COMPRESSOR OFF) ......................................................................................................................20
7.30 COMPRESSOR STARTS AND RUNS A SHORT TIME, BUT SHUTS OFF
ON OVERLOAD ...............................................................................................................................21
7.31 SELECT OR LOW CONCENTRATE LIGHTS INOPERATIVE BUT AUDIBLE
ALARM IS O.K. ................................................................................................................................21
7.32 FRONT COVER LAMPS DO NOT LIGHT .......................................................................................21
8. TROUBLESHOOTING USING PCB 12 VOLT (GREEN), MOTOR OVER CURRENT (YELLOW)
AND MOTOR (RED) DIAGNOSTIC LIGHTS............................................................................................22
9. ILLUSTRATIONS, PARTS LISTINGS, AND WIRING DIAGRAMS ..........................................................23
9.1 FINAL ASSEMBLY ......................................................................................................................23-24
9.2 PUMP/REGULATOR ASSEMBLY...............................................................................................25-26
9.3 WATER/CONCENTRATE COMPONENT ASSEMBLY ...............................................................27-28
9.4 REFRIGERATION ASSEMBLY...................................................................................................29-30
9.5 AGITATOR DECK ASSEMBLY.........................................................................................................31
9.6 LIGHTED FRONT COVER ASSEMBLY, PN 82-1782......................................................................32
9.7 TRANSFORMER BOX ASSEMBLY .................................................................................................33
9.8 WIRING CONNECTIONS ................................................................................................................34
9.9 WIRING DIAGRAM ..........................................................................................................................35
ii
1. INSTALLATION
1.1 RECEIVING
Each unit is completely tested under operating conditions and thoroughly inspected before
shipment. At the time of shipment, the carrier accepts the unit and any claim for damage must be
made with the carrier. Upon receiving units from the delivering carrier, carefully inspect carton for
visible indication(s) of damage. If damage exists, have carrier note same on bill of lading and file a
claim with the carrier.
1.2 UNPACKING
A. Cut band and remove.
B. Carefully remove top portion of carton by lifting up.
C. Remove top inner carton pad from inside of packing box.
D. Remove package containing four (4) legs (PN 81-0112) from drip tray.
E. Lift unit by plywood shipping base and remove lower portion of carton.
F. Remove plywood shipping base from unit by removing screws from bottom. This is best done
by moving unit so that one side extends past edge of counter top or table, allowing access to
screws on bottom of plywood shipping base.
NOTE
If unit is to be transported, it is advisable to leave unit secured to plywood shipping base.
G. Assemble legs (PN 81-0112) to unit by tilting unit. DO NOT LAY UNIT ON ITS SIDE OR BACK.
H. Inspect unit for concealed damage and if evident, notify delivering carrier and file a claim against
same.
I. Remove accessory kit of loose parts (listed below, with quantity in parenthesis) from drip tray.
• PN 05-0017 Flare Seal Washer (2)
• PN 22-0017 Brush (1)
• PN 54-0038 Dispensing Nozzle (2 or 3)
• PN 81-0301 Keys (for Key Switch) (2)
• PN 49-0226 Inlet Water Shut Off (1)
1.3 SELECTING COUNTER LOCATION
A. Select a location close to a properly grounded electrical outlet and water supply that meet the
requirements as listed in the SPECIFICATIONS (see Cover).
B. Condenser air is drawn in on the bottom of the unit and discharged out the rear of the unit. A
minimum of two (2) inches (5.08 cm) must be maintained between the back of the unit and the
wall. Failure to maintain the proper clearance space will cause the compressor to overheat and
result in premature compressor failure.
1.4 CONNECTING TO WATER SUPPLY
A. Flush water supply line thoroughly.
B. Remove drip tray by pulling up slightly and away from unit. Remove dispensing paddles by
squeezing together at top and pull down.
C. Remove splash plate by pulling bottom up slightly and then out from unit.
CAUTION
USE A BACKUP WRENCH TO PREVENT DAMAGE TO STRAINER.
D. Connect the inlet water shut off to water inlet fitting on bottom of unit using a flare seal washer
(PN 05-0017).
E. Connect other end of the water tube assembly to water supply line using a flare seal washer.
Open valve on water supply and check for leaks.
F. Replace splash plate, drip tray and dispensing paddles.
1.5 FILLING UNIT WITH WATER
A. Remove both lids from top of unit.
1
B. Disconnect check valves (feed line) from top of concentrate containers, and remove concentrate
containers from unit.
C. Remove yellow plug from agitator deck.
D. Using a funnel or tube, fill with water until water flows out of overflow hole into concentrate
container compartment. The overflow water will drain into the drip tray.
NOTE
Facing the front of the unit, the overflow hole is in the rear wall of the concentrate container
compartment.
E. Replace yellow plug.
1.6 CONNECTING TO ELECTRICAL POWER
W
ARNING
THIS UNIT MUST BE PROPERLY ELECTRICALLY GROUNDED TO AVOID POSSIBLE FATAL
ELECTRICAL SHOCK OR SERIOUS INJURY TO THE OPERATOR. THE POWER CORD IS
PROVIDED WITH A THREE PRONG GROUNDED PLUG. IF A THREE-HOLE GROUNDED
ELECTRICAL OUTLET IS NOT AVAILABLE, USE AN APPROVED METHOD TO GROUND THE
UNIT.
DO NOT USE EXTENSION CORDS WITH THIS UNIT. DO NOT “GANG” TOGETHER WITH
OTHER ELECTRICAL DEVICES ON THE SAME OUTLET.
Plug unit power cord into electrical outlet. Compressor and condenser fan motor will not begin
running until five (5) minutes after the unit is energized. Agitator motor will run continuously.
1.7 PURGING UNIT OF AIR
A. Raise front cover and turn key switch ON.
B. Using a cup, actuate each dispensing paddle until a steady flow of water is obtained.
C. Turn key switch OFF.
1.8 LOAD MINUTE PAKS
®
A. Remove lid over concentrate compartment.
B. Minute Paks
®
must be completely thawed and thoroughly shaken before loading.
C. Load each Minute Pak
®
per the flavor label on the front of the unit.
D. Replace check valves (white elbow) in Minute Paks
®
, using a rotating movement while pushing
down.
E. Replace lid on top of unit.
1.9 PRIMING CONCENTRATE PUMPS
A. Turn key switch ON.
B. Depress the Sold Out Reset button.
NOTE
An initial eight (8) to ten (10) ounces (236.6 ml to 295.7 ml) of water will be dispensed before
the concentrate/water mixture reaches the spout.
C. Hold cup under spout and depress the dispensing paddle.
1.10 ADJUST CONCENTRATE TO WATER RATIO (
o
BRIX)
A. Install dispensing nozzles.
B. Inlet water is distributed to two (2) water regulators which supply water to the mixing spouts,
independently of each other. They are marked LEFT and RIGHT, indicating the mixing spout
they supply. On the ESCORT III, the LEFT also supplies the middle spout. Both regulators are
preset at 25 PSIG (1.76 kg/cm
2
). With a proper water source, each spout will dispense
approximately 1.25 ounces of water per second (36 ml/sec). When mixed with concentrate
(5 to 1 ratio), the finished drink will be dispensed at 1.5 ounces per second (43 ml/sec).
C. There are NO select options on ESCORT III units. These units are factory preset
(electronically) for the spouts and ratios provided in Table 1 (see following page).
2
3
Figure 1
screws finger tight. Be sure control panel is properly seated in control housing.
2. OPERATING UNIT
2.1 CHANGING PRODUCT
A. Remove nozzle from spout and clean.
B. Flush unit until only water is dispensed from spout (see Section 1.9).
C. Remove lid from top of unit.
D. Remove the Minute Pak
®
from the unit. Replace with new flavor.
E. Replace lid and nozzle.
ESCORT III
Left Middle Right
Ratio 6:1 5:1 5:1
NOTES: Because the ratios are factory preset electronically, they are not
exact and may require a slight adjustment at time of installation.
This can be accomplished by using a refractometer as follows:
1. Dispense a 5 or 6 ounce (147.9 to 177.4 ml) cup of product
and discard.
2. Dispense a 5 or 6 ounce cup (147.9 to 177.4 ml) of product
and stir thoroughly.
3. Using a refractometer read the
o
Brix. Adjust as necessary as
explained in 1.10.D below and re-Brix.
Factory PreSet Select, Ratio, Product
Table 1
D. To adjust the °Brix, loosen two (2) screws on face of control panel until control panel can be
pulled partially out of control housing. Screws are captive and can be used to pull control panel
from control housing.
(1) Each spout of the unit is controlled by an independent Drive Printed Circuit Board (PCB)
plugged into the Master PCB. The driver PCB has adjusting knobs which control the °Brix
of the product selections.
(2) To adjust the °Brix turn the adjusting control as follows:
Decrease °Brix..............Turn Counter
(less concentrate) Clockwise
Increase °Brix................Turn Clockwise
(more concentrate)
E. To set a unit that has not been factory preset for a
product, adjust °Brix and change product plate on
control panel.
F. In some locations, the water supply pressure may be so
low or may fluctuate so much that a 25 PSIG
(1.76 kg/cm
2
) flowing water pressure cannot be
maintained. As a result, the unit will not dispense a
product at the proper °Brix. In this event, the
regulated water pressure should be reduced below the
local inlet water supply pressure so that a
proper °Brix can be maintained. Reducing the regulated
water pressure will reduce the finished product flow rate.
Normally, the minimum recommended setting is 15 PSIG
(1.06 kg/cm
2
) flowing. To reset the regulator, refer to
Section 6.9, items K-Q.
G. Readjust °Brix as necessary.
H. Slide control panel into control housing and tighten
MOTOR OVER-CURRENT (YELLOW)
12 VOLTS (GREEN)
MOTOR VOLTS (RED)
SEL 2
SEL 1
INCREASE
DRIVER PC BOARD
SELECTOR TAB
F. Depress the Sold Out Reset button.
G. Depress dispensing paddle with cup until a steady flow of pre-mixed product is obtained. Unit
is now ready to dispense. Install nozzles and check °Brix (see Section 1.10).
H. Change product plate on front cover to indicate new product.
NOTE
If the new product requires a different mixing ratio, see Section 1.10 (°Brix).
2.2 OPERATING ESCORT III JUICE DISPENSERS WITH SOLD OUT FEATURE
A. New Package
1. Turn key to "ON".
2. Remove front lid.
3. Load "Minute Pak
®
”. Thoroughly shake "Minute Pak®” before loading.
4. Install check valve into package.
5. Press red "Reset" Button.
6. Replace front lid.
7. Prime pump by dispensing until product is dispensed.
B. Intermittent Lockout
Every precaution has been taken to produce a Sold Out Feature which will operate properly with all of the
Minute Maid
®
products. However, it is possible that an individual machine may lockout inadvertently.
Should the machine lockout while product remains, simply press the "Reset" button.
If the machine continues to lockout, check the condition of the concentrate tubes. If the tubes are heavily
stained from the product, the tube(s) must be changed out.
C. Test Procedure
Should you desire to determine if the Sold Out Feature is working, you may perform the following
procedure:
1. Load Product into machine.
2. Press "Reset" button.
3. Dispense for 20 continuous seconds.
NOTE:
The 20 second continuous dispense is ONLY required for testing.
4. The Sold Out Feature should now be armed. To test, remove the check valve from the
concentrate package. Then dispense until lockout alarm sounds (this simulates an empty
package).
5. When alarm sounds, press "Reset" button to return to monitoring condition.
6. If alarm does not sound, repeat test procedure. If alarm does not sound after repeating the
test procedure several times, contact the Service Center.
D. Disabling of Sold Out Feature
The Sold Out Feature can be disabled by pressing the "Flush" button three (3) times (in rapid succession).
The dispenser will follow with three (3) short beeps.
E. Enabling of Sold Out Feature
Press the "Reset" button to enable the Sold Out Feature. Dispenser will follow with three (3) short beeps.
2.3 CLEANING AND SANITIZING INSTRUCTIONS
For optimum dispenser performance and highest drink quality, please follow the instructions listed
below for cleaning your dispenser. The instructions are also shown on the inside front cover for the
Escort Dispenser.
CAUTION
DO NOT USE ANY POWDERS OR ABRASIVE CLEANING COMPOUNDS THAT WILL DAMAGE
FINISH.
A. Daily
1. Flush each valve of dispenser until clear water flows from the nozzle.
4
2. Remove drip tray and cup rest. Wash drip tray and cup rest thoroughly with warm, soapy
water using a mild detergent. Rinse thoroughly with clean, warm water and reinstall drip tray
and cup rest to dispenser.
3. Wipe down dispenser to remove any product residue.
W
ARNING
REMOVE SANITIZING SOLUTION FROM DISPENSER AS INSTRUCTED. RESIDUAL
SANITIZING SOLUTION LEFT IN SYSTEM COULD CREATE HEALTH HAZARD.
CAUTION
DO NOT SOAK NOZZLES IN CHLORINE SOLUTION OVERNIGHT. THIS WILL CAUSE NOZZLES
TO SWELL AND PLASTIC WILL BEGIN TO DETERIORATE.
B. Weekly
1. Flush each valve of dispenser until clear water flows from the nozzle.
2. Turn off water supply to dispenser.
3. Remove lid and wash thoroughly with warm, soapy water using a mild detergent. Rinse
thoroughly with clean, warm water.
4. Lift up on the check valve (white or yellow elbow) to remove it from the Minute Pak
®
.
5. Remove Minute Pak
®
from dispenser.
6. Remove nozzles and disassemble (see NOZZLE ASSEMBLY instructions). Wash
thoroughly with warm, soapy water using a mild detergent. Rinse thoroughly with clean,
warm water and replace. DO NOT SOAK NOZZLES IN CHLORINE SOLUTION
OVERNIGHT. THIS WILL CAUSE NOZZLES TO SWELL AND PLASTIC WILL BEGIN TO
DETERIORATE.
7. Fill the specially marked sanitizing container with 80 ounces of COOL chlorinated sanitizing
solution (Diversol CX, or equivalent) minimum 100 PPM available chlorine, but not to
exceed 200 PPM; replace sanitizing container in dispenser.
8. Replace check valve in sanitizing container.
9. Activate valve for two (2) minutes ensuring concentrate lines are full of solution. Let
solution stand for five (5) minutes without dispensing.
10. Perform a second two (2) minute dispense and let stand for an additional five (5) minutes.
11. Activate valve until the sanitizing solution empties from the sanitizing container.
12. Remove check valve from sanitizing container, remove container, and pour out excess
sanitizing solution.
13. Repeat for each valve.
14. Reinstall Minute Pak
®
, and replace check valves.
15. Run concentrate through valves to remove traces of sanitizing solution from the dispenser.
NOTE
Please note that a fresh water rinse cannot follow sanitization of equipment. Purge only with
the end use product. This is an NSF requirement.
16. Remove drip tray and cup rest. Wash thoroughly with warm, soapy water using a mild detergent. Rinse thoroughly with clean, warm water.
17. Wipe the dispenser with a clean damp cloth, taking care to remove all product residue.
18. Replace drip tray, and cup rest.
19. Turn on the water supply to the unit.
20. Reinstall lid.
21. Prime dispenser by holding cup under spout and activating the valve until a
concentrate/water mix is dispensed.
2.4 LIGHTED FRONT SECTION
A. Replacing Graphics in Lighted Front Section
1. Turn the key to the “OFF” position, turn switch on inside of front cover to the “OFF” position,
and unplug unit.
2. Open front cover and push the clear clips (protruding from the reflector) into the slots in the
reflector. Return cover to the closed position.
5
3. Lean the outer lens (PN 05-1164) back far enough so that it can be removed from the front
cover. Remove clear backing and remove old graphics. Insert new graphics into recess of
lens, and replace backing sheet.
4. With lens horizontal, insert tabs into bottom of front cover and rotate lens to an upright
position. Push lens in, until lens is flush with front cover and until the lens snaps into place.
Be sure that the lens is properly seated.
5. Plug in the unit, open front cover and turn switch on the inside of the cover to the “ON”
position.
6. Turn the key to the “ON” position, and return front cover to the closed position.
B. Operating Instructions
1. Plug unit in. If graphics do not light up, open front cover, and turn switch to the “ON”
position.
NOTE
The key does not turn off the lighted front graphics. Graphics are controlled by the switch
located on the inside of the front cover.
3. PRINCIPLES OF OPERATION
3.1 WATER SYSTEM
Inlet water is distributed through the strainer to the left and right regulators, which reduces the inlet
water pressure to 25 PSIG (1.76 kg/cm
2
).
Water is fed from the regulator through stainless steel tubes (embedded in the insulation of the tank
assembly) and into the copper water coil, where the water is chilled to below 40°F (4.4°C). Water
is then fed past a vacuum breaker through a stainless steel tube (embedded in the insulation of the
tank assembly) to the front of the tank assembly and into the water solenoid. When a valve is
activated, the corresponding water solenoid opens allowing water to pass into the spout and mix with
concentrate.
Each water system is completely independent of the other. On the Escort Ill units, products can
be dispensed singularly or simultaneously through the right and either left or middle spouts
without a change in °Brix. When the inlet water is disconnected from the unit, the vacuum breaker
will open automatically allowing water to drain out of the unit, thus preventing a freeze up when
transported or stored at ambient temperatures below 32°F (0°C).
3.2 CONCENTRATE SYSTEM
When the dispensing valve is activated, concentrate is drawn from the bottom of the concentrate
container, up the integral dip tube and through the check valve and concentrate tube, to the inlet of
the concentrate pump.
It is metered by volume and pumped into the spout where it mixes with the water. The temperature
of the concentrate does not effect the °Brix as long as it is above 32°F (0°C). The volume output of
the concentrate pump is controlled electronically and can be adjusted to change the °Brix.
3.3 CONCENTRATE LOW LEVEL INDICATOR SYSTEM
The dispenser is equipped with an infrared sensor on each concentrate tube that senses the
difference in light density that is passed through the tube. The unit reads juice characteristics and
obtains a measurement (Learn Mode). If the unit senses a change in density, indicating a bubble or
lack of concentrate while dispensing, the unit will go into Lock-Out Mode. When the unit is in
Lock-Out Mode, it will disable the valve and turn on the Sold-Out LED. It will also beep if you
depress the dispense button while in Lock-Out Mode. To enable dispensing, reload the concentrate
container and press the reset button. This will clear the lock-out and put the unit into Learn Mode.
NOTE:
The Lock-Out Mode can be cleared by cycling power (key switch). When power is restored the unit
will not go into Learn Mode.
A. If the flush switch is depressed, the unit will go into flush wait mode. In this mode the unit will
not lock out. Nine seconds of dispensing [in three (3) second continuous intervals] will take the
6
unit out of Flush Wait Mode.
B. If the valve does not dispense for over one hour, the unit will go into Inactivity Wait Mode. In
this mode the unit will not lock out. It will stay in this mode until a three (3) second continuous
dispense occurs.
C. The unit enters Learn Mode when the reset switch is depressed. The unit will beep once when
entering Learn Mode. (Note: If the reset switch is depressed and the unit does not beep, it is
already in Learn Mode). This clears the lock-out (shuts off the red LED, disables audible alarm,
and enables dispensing).
D. Pre-learn dispense - The unit will wait for 15 seconds of dispensing [in three (3) second
increments]. This delay ensures that concentrate is in the sensor region of the tube before
learning the concentrate.
E. Learn -The unit will "learn" the characteristics of whatever is in the sensor region of the tube
when a dispense (of at least one second) occurs after the pre-learn dispense is finished.
NOTE:
If the flush button is pressed after the reset/learn button, the unit will have to clear the Flush Wait
Mode before it will learn the concentrate. The Flush Wait Mode is cleared by three (3) dispenses
of at least three (3) seconds each. Since the pre-learn dispense requires five (5) dispenses of
at least three (3) seconds each, it should have no effect on the learn unless several seconds of
dispensing occur in the pre-learn dispense mode before the flush switch is pressed. In a worst
case scenario, it could take an additional nine seconds of dispensing before the learn occurs if
the flush switch was pressed just before the pre-learn dispense was finished.
F. The unit may be put into or out of Disable Lock-Out Mode by depressing the flush switch three
(3) times in less than two (2) seconds. When entering/leaving Disable Lock Out Mode, the unit
will beep three (3) times. In Disable Lock Out Mode, the dispenser will operate without the Low
Level/Sold Out features.
3.4 ELECTRONIC CONTROL SYSTEM
Electrical power is fed into the transformer cabinet assembly, which contains independent Class II
energy limiting step down transformers.
Each transformer is protected by a resettable circuit breaker on the primary side of the transformer.
Each transformer feeds 15.3VAC to a driver PCB which controls one spout of the unit. Each driver
PCB is independent of the other. The driver PCB plugs into an edge connector of the control panel
PCB. Failure of a transformer or driver PCB on one spout does not effect the operation of the other
spout of the unit.
Current supplied to the various devices (e.g., solenoids, sensors, lights, pump motor, etc.) by the
driver PCB does not exceed 15VDC. With the exception of the pump motor, any short circuit of one
or more of the devices controlled by the driver PCB will cause the driver PCB to shut OFF and cease
functioning. When the short circuit is corrected by repair or replacement of the faulty device, the
driver PCB will automatically reset and begin functioning. This is also true of the pump motor,
except that to reset the driver PCB, the key switch must be turned to the OFF position for
30 seconds and then turned back to ON.
When the dispensing valve is activated, the driver PCB activates the water solenoid and the pump
motor. The electronic system continuously monitors the pump motor and maintains exact speed
(°Brix) regardless of the load on the pump motor. °Brix is changed by turning the adjusting knob on
the driver PCB as described in Section 1.10C.
3.5 DISPENSING PADDLE SYSTEM
The dispensing paddle has an integrally sealed permanent magnet which activates the sensor
behind the splash plate when the paddle is depressed. This causes the electronic system to
activate the water solenoid and concentrate pump, allowing the unit to dispense product. The
dispensing paddles are removable, without tools, for cleaning. Paddles can be removed by
squeezing the top edges of each paddle together.
3.6 FLUSH SYSTEM
When the flush switch is held in position, the electronic system opens the flush solenoid and allows
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water to flow to the check valve on the concentrate container and simultaneously operates the
concentrate pump. Water flows through the check valve, the concentrate pump, and the spout. The
check valve positioned at the concentrate container prevents flush water from entering the
concentrate container.
3.7 REFRIGERATION SYSTEM
An ice bank is formed and maintained on the copper tube evaporator located in the water bath
compartment of the tank assembly. Water is continually circulated by the agitator motor across the
ice bank and around the copper water coil. Water temperature is maintained at 32°F (0°C).
Because the water compartment and concentrate compartment form an integral aluminum die
casting, the concentrate compartment is maintained at a constant 35°F (0°C) temperature. When a
product is dispensed, water is drawn through the copper water coils and chilled. As the ice bank is
depleted, the ice bank control senses that the ice is melting and causes the compressor and
condenser fan motor to start. When the ice bank is rebuilt, the control shuts off the compressor and
condenser fan motor.
The compressor and condenser fan motor will operate periodically, even though no drinks are being
dispensed, in order to maintain the ice bank. If the unit is unplugged or power is disrupted while
operating, the compressor will not restart for a period of time during which the refrigerant pressures
equalize [approximately five (5) minutes]. This feature protects the compressor from premature
failure.
4. RELOCATING OR SHIPPING UNIT
4.1 REMOVING AN OPERATING UNIT
A. Perform FLUSH operation on each side of unit until a clean stream of water is being dispensed.
B. Remove Minute Paks
®
.
CAUTION
IF UNIT IS TO BE TRANSPORTED OR STORED WHEN AMBIENT TEMPERATURE IS 32°F (0°C)
OR LOWER, STEPS C AND D MUST BE PERFORMED TO PREVENT THE WATER SYSTEM
FROM FREEZING AND DAMAGING THE UNIT. DO NOT USE CO2 GAS TO PURGE WATER
FROM UNIT AS IT WILL CAUSE A HEALTH HAZARD.
C. Shut off inlet water supply. Disconnect inlet water tube from bottom of unit. About six (6) ounces
(177.4 ml) of water will drain out of the unit as the vacuum breaker opens, allowing air into
system.
D. Depress each dispensing paddle. This allows additional air into the system and will cause a few
more ounces (ml) of water to drain from unit.
E. Turn key switch OFF.
F. Unplug unit power cord from electrical outlet.
G. Remove agitator deck (see Section 6.14), and using plastic tubing, siphon water out of ice bath
compartment. It will be necessary to pour about 12 ounces (354.8 ml) of warm water (do NOT
use extremely hot water) into the ice bath compartment to completely melt the ice bank. Drain
the remaining water and replace agitator deck and secure with nuts.
H. Remove drip tray and cup rest. Clean and reinstall. Wipe exterior surfaces of unit with a clean
damp cloth.
4.2 TRANSPORTING UNIT
The best method of handling and transporting a unit is to remove the legs and secure the unit to a
plywood shipping base. If it is to be handled and transported with the legs assembled to the unit,
special care should be taken not to damage unit. DO NOT LAY UNIT ON SIDE OR BACK.
4.3 SHIPPING UNIT
If a unit is to be shipped by a common carrier, it must be secured to the plywood shipping base and
repacked in the original carton with the inner packaging material. For this reason, it is wise to retain
the original packing material.
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5. PERIODIC MAINTENANCE
5.1 LUBRICATION
All motors are lubricated for life and require no maintenance lubrication.
5.2 CLEANING WATER STRAINER
A. Remove splash plate.
B. Close inlet water shut off valve.
C. Remove plug from strainer on regulator assembly. Remove strainer screen.
D. Clean strainer screen with water. Inspect strainer screen for holes or other deterioration.
Replace, if appropriate.
CAUTION
DO NOT OVER TIGHTEN STRAINER PLUG.
E. Reinstall cleaned or new strainer screen. Reinstall strainer plug.
F. Open inlet water shut off valve.
G. Reinstall splash plate.
5.3 CLEANING INLET AIR FILTER
WARNING
FAILURE TO KEEP FILTER CLEAN WILL CAUSE A RESTRICTION OF AIR TO THE
CONDENSER AND THEREBY CAUSE PREMATURE COMPRESSOR FAILURE.
A. Remove splash plate.
B. Remove inlet air filter by removing spring retainers.
C. Clean air filter with water.
NOTE
Filter should be cleaned at least every three (3) months, or more frequently if required.
D. Squeeze excess water from filter, and reinstall air filter and spring retainer.
E. Reinstall splash plate.
5.4 CLEANING CONDENSER
A. Unplug unit power cord from electrical outlet.
B. Remove splash plate.
C. Remove fan guards (lower and upper).
D. Remove condenser fan motor.
E. Clean condenser with a small brush.
F. Reinstall condenser fan motor, fan guards and splash plate.
G. Plug unit power cord into electrical outlet.
5.5 CLEANING CONCENTRATE CONTAINER COMPARTMENT
CAUTION
DO NOT USE ANY POWDER OR ABRASIVE CLEANING COMPOUNDS THAT WILL DAMAGE
FINISH.
Use only warm water and damp cloth.
6. REPAIR AND REPLACEMENT
6.1 COMPLETE FRONT PANEL REPLACEMENT
A. Turn key switch OFF.
B. Loosen both (2) captive screws on control panel and partially pull control panel out of the
control housing.
C. Disconnect all wiring harnesses by depressing tabs on the harness connector.
D. Remove control panel from control housing.
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