Goldmedal Cornado Popping Unit User manual

Part No. 83014
Cornado Popping Unit
36, 48 & 60 oz. Domestic Units
Instruction Manual
Cincinnati, OH 45241-4807 USA

SAFETY PRECAUTIONS

Domestic Cornado Popping Unit
36, 48 & 60 oz. Domestic Units
3
Installation Instructions
Checking Shipment
Unpack all cartons and check thoroughly for any damage which may have occurred in transit.
Damage claims should be filed immediately with the transportation company. Gold Medal is not
responsible for damage that occurs in transit.
Domestic models only: 120v/208v or 120v/240v 60 Hz.
A 30 amp – 4 wire wall receptacle is shipped with each 36 oz. machine. This receptacle will accept the
attachment plug on the popper and must be used. Your electrician must furnish sufficient current for
proper operation of your machine. The 36 oz. Cornado must be operated on a 30 amp dedicated, and
circuit protected, line. (note: The Cornado “uses” both “hot to neutral” legs, 120v. The machine does not
“use” the 208v or 240v, “hot to hot” connection.
A 50 amp – 4 wire wall receptacle is shipped with each 48 & 60 oz. machine. This receptacle will accept
the attachment plug on the popper and must be used. Your electrician must furnish sufficient current for
proper operation of your machine. The 48 or 60 oz. Cornado must be operated on a 50 amp dedicated,
and circuit protected, line. (note: The Cornado “uses” both “hot to neutral” legs, 120v. The machine does
not “use” the 208v or 240v, “hot to hot” connection.
Final Preparations
The popcorn machine was adjusted, inspected, and tested before it left the factory.
Connect the clear oil line from the pump to the aluminum line from the popper with the
supplied hose clamp. Connect the 6 pin connector from the popper to the receptacle on
the oil pump. Both Bucket pump (2114E) and Bag-in-a-Box pump (2257) have the same
receptacle.
Follow the instructions provided in the oil pump manual to set the oil delivery amount.
The proper amount of oil for the 36oz. Cornado is 9 to 12 ounces. The proper amount of
oil for the 48 oz. Cornado is 12 to 16 ounces. The proper amount of oil for the 60 oz.
Cornado is 15 to 20 ounces.
To check for proper amount of oil, and assure oil is liquid, dispense a “shot” into a
measuring cup.

Domestic Cornado Popping Unit
36, 48 & 60 oz. Domestic Units
4
Mounting Instructions
Note: 10 inch minimum clearance required between popping kettle – and fire proof wall.

Domestic Cornado Popping Unit
36, 48 & 60 oz. Domestic Units
5
Setting the Amount of Popping Oil with a Gold Medal BIB
System
In March 2003, we introduced the model 2257 with the E-Z Set control.
Note: When connecting the bag-in-box system, you
must be sure to connect the bag connectors as shown
in the picture to the left.
With this system, it is not necessary to set a timer. To adjust the oil amount, follow these instructions:
Holding down the RED Oil Dispense push button (on the popper) while turning on the Oil System Master
switch (on the popper), and continuing to hold the RED Oil Dispense button in for 5 seconds, puts the
unit in the program mode.
When in the program mode, press and release the oil Dispense switch to start the oil flowing. When the
correct amount of oil has been dispensed into the measuring cup, push the oil Dispense switch again to
stop the oil flow. The oil amount can be “topped off” by pushing the oil Dispense switch on/off as many
times as needed to finalize the oil amount. Turning the Oil System Master switch off and then back on puts
the unit in the regular mode. The unit will now dispense the “programmed” amount of oil when the oil
Dispense switch is pushed. The oil light will light only when the oil pump is on.
You will need to perform this procedure with the oil lines full of oil. Otherwise, you are setting both the
amount of oil that goes in the kettle plus the amount of oil to fill the lines. Just fill the lines using the process
above, then reset the amount as described above.
Notes:
- Model 2257D is has the capability of “remembering” two different settings for poppers with the “Salt/Sweet”
option.
- For Salt/Sweet models, just put the switch in the “salt” position, and set the oil amount as described above.
Then put the switch in the “sweet” position and repeat the setting procedure. The pump will remember both
settings.
The dead-leg connector
(With only one hose
connected to it) must be
installed on the to
p
box.
The Pass-thru connector
(With two hoses
connected to it) must be
installed on the bottom
box.
The Pass-thru connector
(With two hoses
connected to it) must be
installed on the bottom
box.

Domestic Cornado Popping Unit
36, 48 & 60 oz. Domestic Units
6
Controls and Their Functions
Oil System Master Switch
Sends power to the oil pump, either the Bucket Pump or Bag-in-a-Box models. The warmer/blower on
the oil pump is activated. It may be desirable to keep this switch on at night, if you have
problems keeping the coconut oil liquid. Coconut oil will congeal at temperatures below approximately
76º F [24º C].
Salt-Sweet Switch (If Equipped)
Changes the temperature 40ºF lower for the sweet option.
Note: When making sweet corn, follow the label instructions on jar of compound “S”.
(Compound “S” is available from Gold Medal Products Co. – item number 2320.)
“Red” Oil Dispense Momentary Switch
When pushed, will dispense the predetermined amount of oil into the kettle.
Kettle Motor
Operates the kettle agitator motor.
Kettle Heat Switch
Operates the heating elements in the popping kettle by supplying power to the Big Eye Electronic
Temperature control board.
Load/Dump Indicator (Yellow Light & Audible Signal )
Alerts the operator to:
1. Load the corn and oil or
2. Dump the popped corn from the kettle or
3. Turn off the kettle heat switch if they are done popping corn

Domestic Cornado Popping Unit
36, 48 & 60 oz. Domestic Units
7
Popping Corn
1. Turn on Kettle heat, Motor, and Oil system master switches.
2. When popping with coconut oil, be sure the oil is liquid. Dispense oil into a measuring cup first to
ensure proper oil amount. See page 5 for setting oil pump.
3. When the kettle is ready (about 5-8 minutes), the Yellow Light and Audible Signal will turn on. Lift
the kettle lid and pour in corn (use the supplied corn cup) and Flavacol, (use supplied scoop as well)
4. Press the RED oil pump button. The proper amount of oil is pumped into the kettle. The Light and
Signal will turn off.
5. When the popcorn has completed popping, the Light and Signal will turn on. Dump the Popcorn.
6. On the final kettle of corn, turn the “KETTLE HEAT” switch off, just as the lid are forced open by the
popping corn. Turning the kettle heat switch off allows the heat to dissipate as the final batch is
popped. (This results in less smoke on the last batch.)
7. Note: When making sweet corn, follow the label instructions on jar of compound “S”.
(Compound “S” is available from Gold Medal Products Co. – item number 2320.)
Remember:
If the Yellow Load - Dump light is turned on and the Signal is sounding one of the following actions should
be taken: 1. Load the corn and oil or
2. Dump the popped corn from the kettle or
3. Turn off the kettle heat switch if you are done popping corn
When you are finished popping, make sure “KETTLE HEAT” and “KETTLE MOTOR” switches are turned
“OFF”.
NEVER LEAVE THE HEAT ON WHEN YOU ARE NOT POPPING!

Domestic Cornado Popping Unit
36, 48 & 60 oz. Domestic Units
8
Cleaning Instructions
Daily:
Clean the Kettle
1. As you pop corn, wipe the kettle with a clean cloth. It is easy to keep the outside
clean when the kettle is warm and the oil is not baked on. CAUTION: The hot
kettle will cause burns if you touch it with your hand.
2. Every night, mix Heat’n Kleen solution (Gold Medal item number 2095) - 2
tablespoons per gallon of water. Do not use the entire gallon at once. Only use
enough to the fill the kettle a ½” deep. Turn on the kettle heat. When the water
starts to boil, turn off the heat and let it work overnight.
3. The next morning, dump the solution into a bucket and wipe the inside of the
kettle with a cloth.
Clean the Popcorn Machine
1. Wipe the stainless steel parts with a clean cloth and cleaner designed for stainless steel, such as
Gold Medal’s Watchdog stainless steel cleaner (item #2088CN). Do not use oven cleaners, as
they will damage parts of the machine.

MAINTENANCE INSTRUCTIONS

Domestic Cornado Popping Unit
36, 48 & 60 oz. Domestic Units
10
Electronic Temperature Control
Operation
The control is factory set to 460F, which stops power to the kettle when the thermocouple reaches setpoint.
On the Cornado machine, this is also the ideal point to dump the popped corn out of the kettle. On the first
start-up this is also the ideal time to load the corn and oil. Therefore if the kettle heat switch is turned on and
the buzzer is sounding one of the following actions should be taken:
Load the corn and oil or
Dump the popped corn from the kettle or
Turn off the kettle heat switch if you are finished popping corn.
Adjustment of Electronic Control
The Cornado has an electronic kettle control with 2 thermocouples, one for control and one for limit. There
Are no mechanical thermostats in this kettle.
There are (4) factory adjustments on the control:
1. Control temperature – do not adjust this one
2. Signal to dump – If you want the signal to dump to be a little sooner or later you can adjust the
potentiometer marked “kettle dump”. CW is sooner, CCW is later.
3. The patented overshoot circuit is tuned for the kettle, do not adjust this potentiometer.
4. The audible signal to dump has three options; full volume, half volume, no sound (just the yellow
light). Adjustments are by jumper positions. We ship full volume.
33333333
It does not matter which TC
goes to A or B. It does
matter that the yellow leads
go to the positive terminals.
The overshoot is
Factory Set, DO NOT
ADJUST
This is the “Kettle Dump”
adjustment, and is
factory set to signal
when the kettle is ready
to dump. Turning CW
will signal sooner, CCW
will signal later. If you
need to adjust, make
very small adjustments.
Hot Lead
is at L1,
Neutral
lead at L2.
The control temperature is set
at 440°F, DO NOT ADJUST
Remove this
jumper for
no sound
Remove this
jumper for
lower volume
Yellow
Red

Domestic Cornado Popping Unit
36, 48 & 60 oz. Domestic Units
11
Kettle Drive Shaft Alignment
To adjust the lower agitator shaft, loosen the two hex bolts for the adjusting plate. (Figure A)
(It may be necessary to use a socket/wrench on the hex nuts located underneath/inside the
pedestal.) Adjust the plate back and forth, and side-to-side, as necessary – until the lower
shaft lines up with the upper shaft in the kettle. It’s important to have the two shafts aligned
with one another, and that the two shafts do not “bind” when the kettle is dumped. (Figure B)
Once aligned properly, re-tighten the two bolts on the adjusting plate.
A
B

ORDERING SPARE PARTS
* Always speak to a Gold Medal Products Technical Service Advisor before
ordering any parts to help ensure accuracy for your product. Included
diagrams may not be the latest information.
1. Identify the needed part by checking it against the photos, illustrations, and/or parts list.
2. When ordering, please include part number, part name, and quantity needed.
3. Please include your model number, serial number, and date of manufacture (located on
the machine nameplate) with your order.
4. Address all parts orders to:
Parts Department
Gold Medal Products Co.
10700 Medallion Drive
Cincinnati, Ohio 45241-4807
Or, place orders by phone or online:
[phone]
[phone]
Fax: [phone]
E-mail: [email protected]
Web Page: www.gmpopcorn.com

Domestic Cornado Popping Unit
36, 48 & 60 oz. Domestic Units
13
Parts Breakdown 36, 48 & 60 Oz. Units
For pedestal parts
see pgs. 14, 16-18
For kettle parts see
pgs. 14, 19-22
For switchplate
parts see
pgs. 14-15
For Lid & dump chute
parts see
pg. 23
1

Domestic Cornado Popping Unit
36, 48 & 60 oz. Domestic Units
14
Parts – Continued
2
3
4
5
6
7
98
10
11
39
41
40
42
47, 48
5B
49, 50

Domestic Cornado Popping Unit
36, 48 & 60 oz. Domestic Units
15
Switchplate - Parts
12
13
14
15
16
43

Domestic Cornado Popping Unit
36, 48 & 60 oz. Domestic Units
16
Heated Oil Line (60 oz. Only) – P/N 17895
52
53
54, 55
56
57
58, 59

Domestic Cornado Popping Unit
36, 48 & 60 oz. Domestic Units
17
Inside Pedestal - Parts
18
19
20
21

Domestic Cornado Popping Unit
36, 48 & 60 oz. Domestic Units
18
Inside Pedestal – Parts (Continued)
22
23
24

Domestic Cornado Popping Unit
36, 48 & 60 oz. Domestic Units
19
Kettle - Parts (36 oz.) Complete Assy. P/N 83287E
25
26
27 29
28
38
44, 45
38

Domestic Cornado Popping Unit
36, 48 & 60 oz. Domestic Units
20
Kettle - Parts (48 oz.) Complete Assy. P/N 83288E
25
26
27
28
29
38
44, 45