Wilbur Curtis PC-3 Service Manual
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Primo Cappuccino Instructions
MODEL PC-3
References in this manual to "Primo
Cappuccino" Throughout this service
manual, the Primo Cappuccino model
PC-3 is illustrated. This will be typical.
On all other models, PC-1, PC-2, PC-4
and HC-1. parts are common except
where noted.
..
.
..
C
ISO 9001 REGISTERED
WILBUR CURTIS COMPANY
Montebello, CA 90640
Table of Contents
UNPACKING . . . . . . . . . . . . . . . .
SETUP . . . . . . . . . . . . . . . . . .
COLD DRINKS . . . . . . . . . . . . . . .
ADJUSTING BEVERAGE STRENGTH . . . .
REPLACING LAMP & STARTER . . . . . . .
CLEANING & MAINTENANCE . . . . . . .
SIDE PANEL REMOVAL . . . . . . . . . . .
TROUBLESHOOTING . . . . . . . . . . . .
ILLUSTRATED PARTS BREAKDOWN . . . .
ILLUSTRATED PARTS LIST . . . . . . . .
WIRING DIAGRAM, PC-3 . . . . . . . . . .
WARRANTY . . . . . . . . . . . . . . . .
FOR THE LATEST SPECIFICATIONS AND INFORMATION GO TO
WWW.WILBURCURTIS.COM
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Unpacking
All products manufactured by the Wilbur Curtis Company are thoroughly inspected at the
factory and are warranted to be free of all defects or faulty workmanship. The Primo Cappuccino unit is packaged for maximum protection while being shipped. Make sure the shipping carton is not damaged or punctured. Unpack the carton carefully, inspecting the contents for any damage that may have occurred in transit. Report any damage immediately to
the freight company.
Setup
THIS EQUIPMENT IS TO BE INSTALLED TO COMPLY WITH THE APPLICABLE FEDERAL, STATE, OR LOCAL
PLUMBING AND ELECTRICAL CODES HAVING JURISDICTION.
The Primo Cappuccino unit should be located on a solid counter top. The counter top should
be level. Connect the water line from the water filter to the unit using ¼" copper tubing with
a flare fitting at the end. Some type of water strainer must be used to maintain a trouble-free
operation. In areas with extremely hard water, we suggest that an Everpure QC7-MH water
filter be installed.
NSF, The National Sanitation Foundation, requires the following water hookup:
1. A quick disconnect water connection or enough extra coiled tubing (at least 2x the
depth of the unit) so that the machine can be moved for cleaning underneath.
2 . An approved flow back prevention device, such as a double check valve to be installed
between the machine and the water supply.
Primo
Cappuccino
2
2
Figure 1. Location of Components on the Primo Cappuccino. PC-3 Shown, Others Similar.
RIGHT SIDE VIEW
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12
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FRONT VIEW
Refer to figure 1. for index numbers ( ) in this section. Primo Cappuccino machines are
1
1
shipped with the power cord connected inside the machine. The power cord (8) ends with a
standard 3 pronged 120V plug. Check the serial plate on the side of the machine to make
sure of the electrical requirements for your unit.
Setup Steps
CAUTIONCAUTION
CAUTION DO NOT connect this brewer to hot water. Inlet valve not rated for hot water.
CAUTIONCAUTION
1. Connect a ¼" copper water line from your facility to the ¼" flare water inlet fitting (9)
of the valve, behind the machine. Water pressure going to the machine must be stable.
Use a water regulator to maintain constant pressure. Brewer works perfectly with
water pressures from 20 to 80 psi.
2. Make sure the thermostat is in the OFF position (turn stem all the way counterclockwise).
3. To Locate the thermostat:
A. On later PC-3 and PC-4 units the thermostat is located behind the canisters. Open the
front door (4) and pull out the canisters.The thermostat is on the right side at the back
of the canister shelf. The knob will be sticking out from behind the cover.
B. See Fig. 2a. for the various thermostat locations used on the PC-3.
C. On PC-1, PC-2 and HC-1, thermostat is located behind the remov-
able left side panel, Figure 2b.
Remove the screws under the front section of the top cover (10),
slide forward and remove the top cover. Loosen the screw con-
necting the spout shield and side panel (2).
Hold panel by the edges and lift up to free screw heads on the
panel from the key holes on the frame. For a more detailed de-
scription see Side Panel Removal, page 5.
SER. NO. 4563 TO
5569
SER. NO. 0100 TO
4562
THERMOSTAT
SER. NO. 5570
THRU PRESENT
CANISTERS
TOP VIEW
Figure 2a. Thermostat
Location, PC-3.
4. Turn off the heating elements, switch (6), toggle down.
5. Plug the power cord into an electrical outlet rated at 20A.
HEATING TANK
MOTOR
THERMOSTAT
6. Switch on the toggle switch (7), up, sending power to the components in the machine. The lights (display window [1] & row of
switches [3]) on the front cover will activate and the heating tank
will start to fill. At this time the READY TO BREW light will come on.
Figure 2b. HC-1 &
PC-1, Side View.
7. When the heating tank has filled, turn on the thermostat by twisting the stem clockwise
as far as it will go. Switch on the toggle switch (6) to turn on the heating elements. The
READY TO BREW light will go off.
9. The heating tank requires about 30 minutes to get up to operating temperature, 195ºF.
The READY TO BREW light will come on when the water reaches this temperature.
10.Reinstall the left side panel (2) and top cover (10) and fill the canisters with powdered
cappuccino mix.
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Cold Drinks
Primo Cappuccino units that brew hot drinks can be setup for cold iced coffee operation.
Using the optional cold water system, cold water bypasses the hot water tank when the
first switch (left) is pressed. A seperate water inlet tube and valve draws cold water from
the main water line directly into the mixing cup.
To activate this system, open the front door. Pull out the product canisters and locate the
cold water switch (#47, illustration, fig. 13.) mounted on the canister shelf. Flip this switch
to COLD. Assemble canisters on the shelf and close the door.
NOTE: Use coffee product made for cold use only.
To setup all the flavor switches to dispense cold drinks only (no hot), the heating element
must be turned off. Look behind the machine; locate the two toggle switches. The top
switch is labeled HEATING ELEMENTS. Switch this one OFF. Allow hot water in tank to cool
down before using.
Adjusting the Beverage Strength
Adjusting the water flow rate allows you to determine the strength of
beverage you desire. Decreasing the flow rate will result in a stronger
beverage; increasing to weaken.
The dump valves are adjustable so that you can control the rate of the
water flow.
To Change the adjustment on the dump valves, use a slotted screwdriver. Turn the adjustment screw clockwise to decrease the flow rate;
counterclockwise to increase.
The dump valves are set at the factory for a flow rate of .8 ounce per
second; a higher rate will overflow the mixing cup.
Figure 3. Adjustment
NOTE The flow rate of the powder mix going to the mixing cup is fixed
by the speed of the motor and auger design. If you wish to change the
powder flow rate, various auger designs are available by special order.
Screw on Dump Valve
Replacing Lamp and Starter
Disconnect the power by unplugging the machine. To change a fluorescent
lamp, remove the panel inside the door and the light box. The fluorescent
lamp is held in its mounting with two contacts on top and two at the bottom. Take hold of the lamp and turn it slightly to free it from the socket.
Replace the lamp by aligning and inserting the lamp contacts as shown in
figure 4.. As you push the lamp into place, twist the lamp so that the other
contact seats in the socket.
To change a starter, remove by twisting slightly in the socket counterclockwise. The starter will separate from the starter base. Replace the starter by
pushing it into the base and twisting clockwise slightly.
Figure 4. Re-
placing Lamp
Cleaning & Maintenance
Regular cleaning and preventive maintenance is essential in keeping the Primo Cappuccino
coffee dispenser looking and working like new.
[ 3 ]
CAUTION - When cleaning the unit, do not use cleansers, bleach liquids, powders or
any other substance that contains chlorine. These products promote corrosion and
will pit the stainless steel. USE OF THESE PRODUCTS WILL VOID THE WARRANTY.
DAILY CLEANING
1. Wipe off any spills, dust or debris from the exterior surfaces.
2. Wipe surfaces with a damp cloth.
3. Slide out the drip drawer and louvered cover. Wash out its contents. Dry these parts and
return them to the machine.
4. Clean around the dispensing area, wiping with a nontoxic cleaner. Dry thoroughly.
5. Flush the Whipper Chamber:
A. Turn power on.
B. Place a container under the dispensing spout to catch waste water.
C. Open the front door of the machine and locate the rinse switch (item 11, figure 1.).
D. Rinse each flavor by pushing and holding the rinse switch while at the same time
pushing the orange colored dispensing switch on the front panel. Continue until the
water runs clear.
E. Clean up any water that may have spilled.
FILL CANISTERS DAILY
1. Open the front door to access canisters. Lift the top cover.
2. Top off each of the canisters with the powdered coffee mixes. The canisters can be
removed from the unit for easier filling. Each canister holds approximately 4 pounds.
3. Reposition the canisters on the machine, aligning the auger drive with the motor shaft.
The pin on the canisters must align with the guide hole on the support shelf.
WEEKLY CLEANING
CLEANING THE CANISTERS
1. Remove the canisters from the machine.
2. To disassemble the cannister, pull off the elbow funnel from the front of the canis ter. Remove the lid from the top.
3. Wash out the canister. Wash old leftover coffee powder or dried mix from all
disassembled parts. Dry completely before reusing.
REMOVING AND CLEANING THE WHIPPER CHAMBERS*
1. Start by taking off the upper mixing cup. Pull it forward, twist to the left and lift
up to separate from the lower mixing cup.
2. Take off the lower mixing cup by pulling it up and for
ward to free it from the hot water inlet fitting.
LINE UP TICK MARK
WITH FLAT ON
MOTOR SHAFT
3. Pull the dispensing nozzle from the whipper chamber.
4. Take hold of the whipper chamber and turn clockwise to
free it from the mounting plate. Remove it from the unit.
5. Pull the whipper propeller from the motor shaft. When re assembling, make sure the propeller is properly aligned
and seated on the motor shaft (fig 5.). Failure to push
Figure 5. Prop Alignment
*For easy access remove all canisters.
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