Goldmedal Master Pop 2451 User manual

© 2016 Gold Medal Products Co. Part No. 49659
Instruction Manual
10700 Medallion Drive, Cincinnati, Ohio 45241-4807 USA
Master Pop
®
Model No. 2451

Master Pop Model No. 2451
© 2016 Gold Medal Products Co. Part No. 49659
SAFETY PRECAUTIONS
DANGER
Machine must be properly grounded to prevent electrical shock to personnel.
Failure to do so could result in serious injury, or death.
DO NOT immerse any part of this equipment in water.
DO NOT use excessive water when cleaning.
Keep cord and plug off the ground and away from moisture.
Always unplug the equipment before cleaning or servicing.
Make sure all machine switches are in the OFF position before plugging the
equipment into the receptacle.
008_051514
DANGER
Improper installation, adjustment, alteration, service, or maintenance can
cause property damage, injury, or death. Any alterations to this equipment
will void the warranty and may cause a dangerous condition. This appliance
is not intended to be operated by means of an external timer or separate
remote-control system. NEVER make alterations to this equipment. Read the
Installation, Operating, and Maintenance Instructions thoroughly before
installing, servicing, or operating this equipment.
014_020416
WARNING
To avoid burns, DO NOT touch the kettle or any heated surface.
DO NOT place or leave objects in contact with heated surfaces.
013_092414
WARNING
ALWAYS wear safety glasses when servicing this equipment.
010_010914
WARNING
No user serviceable parts inside. Refer servicing to qualified service
personnel.
011_051514
WARNING
Read and understand operator’s manual and all other safety instructions
before using this equipment. To order copies of the operator’s manual go to
gmpopcorn.com or write to Gold Medal Products Co., 10700 Medallion Drive,
Cincinnati, OH 45241 USA 1-(800)-543-0862
022_060215

Master Pop Model No. 2451
© 2016 Gold Medal Products Co. Part No. 49659
SAFETY PRECAUTIONS (continued)
WARNING
DO NOT allow direct contact of this equipment by the public when used in
food service locations. Only personnel trained and experienced in the
equipment operation may operate this equipment.
Carefully read all instructions before operation.
012_010914
WARNING
This machine is NOT to be operated by minors.
007_010914
Note: Improvements are always being made to Gold Medal’s equipment. This
information may not be the latest available for your purposes. It is critical that
you call Gold Medal’s Technical Service Department at -800-543-0862 for any
questions about your machine operations, replacement parts, or any service
questions. (Gold Medal Products Co. does not assume any liability for injury due
to careless handling and/or reckless operation of this equipment.)

Master Pop Model No. 2451
© 2016 Gold Medal Products Co. Part No. 49659
INSTALLATION INSTRUCTIONS
Inspection of Shipment
After unpacking, check thoroughly for any damage which may have occurred in transit. Claims
should be filed immediately with the transportation company. The warranty does not cover
damage that occurs in transit, or damage caused by abuse, or consequential damage due to the
operation of this machine, since it is beyond our control (reference warranty in back of manual).
Manual
Read and understand the operator’s manual and all other safety instructions before using this
equipment. To order copies of the operator’s manual go to gmpopcorn.com or write to Gold
Medal Products Co., 0700 Medallion Drive, Cincinnati, OH 4524 USA -(800)-543-0862.
Model Description
2451: 6 oz. Popper, yellow colored dome.
Items Included with this Unit
Black Crutch Tips
Bulb for Cabinet
Interior
Knob, Magnet an Screw
(for each Popper Door)
Knob with Screw
(for Old Maid Pan)
Aluminum Scoop
Measure 6.5 cc Measure 6 oz.

Master Pop Model No. 2451
© 2016 Gold Medal Products Co. Part No. 49659
Setup
This unit has been tested at the factory.
. Remove all packaging and tape prior to operation. Remove accessories and carefully
remove kettle packed in cabinet interior.
2. Place unit on a sturdy, level base.
3. Unit has 4 glide feet preinstalled at the factory (see image below). Install a Black
Crutch Tip on each foot. Firmly push crutch tip over glide until it covers glide entirely.
4. Tilt kettle and insert into hanger arms, then allow kettle to return naturally to an
upright position (see image below).
5. Plug kettle lead into receptacle located on ceiling of cabinet interior. Align keyed or
hook shaped prong with the correct opening, then push plug all the way in and twist
or rotate to lock in place. To unplug, untwist kettle plug before attempting to pull from
receptacle.
6. Door knobs are shipped in accessories pack located inside machine. Install a door
knob with magnet on popper door; install knob with screw on the old maid pan.
7. Carefully install light bulb (do not over-tighten) into lamp holder located in cabinet
interior. Ensure unit is OFF and unplugged before installing or changing bulb
(reference Electrical Requirements section).
8. After setup, unit should be cleaned prior to use (see Care and Cleaning section).
Black Crutch Tip
Gli e
(pre
-
installed
at the factory)
General images shown for reference only.
Kettle shown
mounte in
hanger arms.
Kettle lea
shown plugge
into kettle
receptacle.

Master Pop Model No. 2451
© 2016 Gold Medal Products Co. Part No. 49659
Electrical Requirements
The following power supply must be provided:
2451: 20 V~, 875 W, 60 Hz
DANGER
Machine must be properly grounded to prevent electrical shock to personnel.
Failure to do so could result in serious injury, or death.
DO NOT immerse any part of this equipment in water.
DO NOT use excessive water when cleaning.
Keep cord and plug off the ground and away from moisture.
Always unplug the equipment before cleaning or servicing.
Make sure all machine switches are in the OFF position before plugging the
equipment into the receptacle.
008_051514
A certified electrician must furnish sufficient power for proper machine operation and install any
supplied receptacle. We recommend this equipment be on a dedicated and protected circuit.
Failure to wire properly will void the warranty and may result in damage to the machine. It is Gold
Medal Products Co.’s recommendation that this machine be plugged directly into a wall outlet. The
use of extension cords is not recommended due to safety concerns, and may cause sacrificed
and/or reduced performance. Make sure cord is located to prevent a trip hazard or unit upset.
Before You Plug In Machine
. Make sure all machine switches are OFF before plugging equipment into receptacle.
2. Make sure wall outlet can accept the grounded plugs (where applicable) on the power
supply cord.
3. The wall outlet must have the proper polarity. If in doubt, have a competent
electrician inspect the outlet and correct if necessary.
4. DO NOT use a grounded to un-grounded receptacle adapter (where applicable).
5. Install unit in a level position.
CAUTION
If the supply cord is damaged, it must be replaced by Gold Medal Products Co.,
its service agent or similarly qualified persons in order to avoid a hazard.
039_080614

Master Pop Model No. 2451
© 2016 Gold Medal Products Co. Part No. 49659
OPERATING INSTRUCTIONS
Controls and Their Functions
KETTLE HEAT SWITCH
Two position, ON/OFF lighted rocker switch - supplies power to the heating element in the
kettle. The green switch light ON indicates there is power to the kettle heating element.
KETTLE MOTOR SWITCH
Two position, ON/OFF lighted rocker switch - supplies power to the kettle agitator motor.
The Kettle Motor Switch MUST be ON at all times when there is popcorn (popped or un-
popped) in the kettle.
LIGHTS/WARMER SWITCH
Two position, ON/OFF lighted rocker switch - supplies power to the interior cabinet light
and corn pan heat element.
Kettle Heat Switch
Kettle Motor Switch
Lights/Warmer
Switch

Master Pop Model No. 2451
© 2016 Gold Medal Products Co. Part No. 49659
Popping Corn Instructions
This section describes instructions for popping Standard (salted) popcorn.
Amount of Popcorn and Oil
The popper is equipped with a corn, salt, and oil measure. We recommend flavored and colored
coconut oil. Popcorn popped in coconut oil stays fresh longer and does not leave black deposits in
the kettle like other oils. Use only top quality, fresh popcorn from reputable suppliers.
Kettle Size
Popcorn Charge
Oil Charge
Flavacol (Salt)
6 oz.
6 oz. ( 77 ml)
2 oz. (59 ml)
/2 Tblsp. (7.5cc)
For best results use Mega-Pop® 6 oz. premeasured pouches (Item# 2836).
Popping Standard (Salted) Popcorn
. Turn all switches ON.
2. To determine when kettle is ready to pop corn (about 4 minutes), test pop three
kernels of corn in one ounce (30 ml) of popping oil. When kernels pop, kettle is ready.
3. Lift kettle lid and load Mega-Pop® premeasured popcorn and oil pouch, or pour in
popcorn and Flavacol, then add oil in premeasured amount. Close lid.
4. When corn has finished popping, gently dump the popcorn.
5. On final kettle of corn, turn Kettle Heat Switch OFF just as lids are forced open by the
popping corn. This procedure saves electricity, since kettle has plenty of heat, and helps
eliminate smoke/odor from any oil residue that remains after popping has stopped.
6. When finished popping, turn KETTLE HEAT and KETTLE MOTOR switches OFF.
NEVER LEAVE THE HEAT ON WHEN YOU ARE NOT POPPING CORN!

Master Pop Model No. 2451
© 2016 Gold Medal Products Co. Part No. 49659
Care and Cleaning
DANGER
Machine must be properly grounded to prevent electrical shock to personnel.
DO NOT immerse in water.
Always unplug the equipment before cleaning or servicing.
025_020314
WARNING
To avoid serious burns, DO NOT touch the kettle while it is hot!
028_082715
Good sanitation practice demands that all food preparation equipment be cleaned regularly (only
use non-toxic, food grade cleaners). A clean looking, well-kept machine is one of the best ways of
advertising your product.
Note: It is extremely important to follow all cleaning procedures, otherwise parts
damage and equipment failure will result. The warranty does not cover parts that
are damaged due to improper cleaning.
Daily Kettle Cleaning Instructions
CAUTION: A hot kettle will cause burns if you touch it with your hand. Allow kettle to cool
at least hour before attempting to clean. DO NOT use ice or water to cool
down a hot kettle! Severe kettle damage will result!
. When cool, wipe outsi e of kettle with a clean, soft cloth. DO NOT use oven cleaners or
abrasive materials as they will damage the kettle.
2. Every night, mix Gold Medal’s Heat’n Kleen solution (Item No. 2095), 2 tablespoons
per gallon of water. It is not necessary to use the entire gallon at once; only use
enough to fill the kettle /2 inch deep.
3. Turn kettle heat ON. When water starts to boil, turn kettle heat OFF.
4. Allow to cool at least hour, then dump solution into a bucket and wipe inside of
kettle with a clean cloth. Make sure all solution goes into the bucket; do not spill any in
the interior of machine.
For an extra dirty kettle, the process may be repeated; or, after turning kettle heat
OFF, allow solution to sit in kettle overnight. The next morning, dump solution into a
bucket and wipe inside of kettle with a clean cloth.
5. With unit OFF and unplugged, wipe kettle lead cord with a clean SLIGHTLY damp cloth.
DO NOT get moisture into the kettle lea -in cor , severe amage will result.

Master Pop Model No. 2451
© 2016 Gold Medal Products Co. Part No. 49659
Daily Unit Cleaning Instructions
. Turn machine OFF, unplug unit and allow it to cool before attempting to clean.
2. Clean all pans/accessories in order to sanitize them before each use.
3. Take a clean, SLIGHTLY damp cloth and wipe excess grease from glass and cabinet.
4. Wipe stainless steel parts with a clean cloth and cleaner designed for stainless steel,
such as Gold Medal Watchdog Stainless Cleaner (Item No. 2088).
DO NOT use oven cleaners or abrasive materials as they will damage parts of machine.
5. Clean glass panels with glass cleaner. Gold Medal Watchdog Glass Cleaner (Item No.
2588) is recommended.
Ammonia cleaners will damage plastic doors/panels. Use only non-ammonia cleaners,
such as Gold Medal Watchdog Glass Cleaner (Item No. 2588).

Master Pop Model No. 2451
© 2016 Gold Medal Products Co. Part No. 49659
Troubleshooting
Issue
Possible Cause
Solution
Power
to the Unit
A.
Power to
the
Unit
A.
Make sure the
unit’s power
cord is plugged in.
Kettle Does Not Heat
A.
Power to the Kettle
A.
Make sure kettle lead
-
in cord is plugged in and
twisted to lock into the kettle receptacle.
B.
Kettle Heat Switch
B.
Have a qualified service
person c
heck the
voltage to and from the Kettle Heat Switch; if
switch is defective, replace it.
C.
Heating Element
C.
Heating element in the kettle may
be burned
out. Check with a qualified service person for
inspection/repair.
Long Popping Cycles
(Longer than 4 minutes for
Salt Popcorn)
A.
Low Voltage
A.
If the machine is operated on low voltage, this
could cause the kettle not to reach the proper
operating temperature. Check with a qualified
electrician.
B.
Inadequate Supply Lines
B.
Inadequately sized electrical
supply lines
or
use of extension cord, in addition to being a
fire hazard, would also prevent the kettle from
reaching the proper operating temperature.
Check with a qualified electrician.
C.
Inferior Corn
C.
Inferior quality corn would result in longer
popping cycles. Use only top quality hybrid
popcorn from reputable suppliers. Even then,
if you let your corn pick up moisture or dry
out, your popping cycles will be slow.
Kettle Agitator Shaft not
Rotating
A.
Kettle Motor Switch
A.
If the kettle agitator shaft is not rotating,
DO NOT pop corn. Make sure the Kettle Motor
Switch is ON. If the switch is ON, and the shaft
is not rotating, the switch or motor may be
faulty, contact qualified service personnel for
inspection/repair.
B.
Kettle Agitator
S
haft
/Stir
Blade not rotating. (Unit
must be OFF, unplugge
an cool prior to
checking or a justing
the agitator assembly.)
B.
If the kettle agitator shaft is not rotating,
DO NOT pop corn. Check the clearance
between the kettle bottom and the stir blade;
it should be /32” (use a dime). To adjust,
reference the Agitator Set Collar Adjustment
section.

Master Pop Model No. 2451
© 2016 Gold Medal Products Co. Part No. 49659
Agitator Set Collar Adjustment
The following instructions describe how to properly adjust set collars on an agitator assembly
with a floating stir rod.
Step 1:
Make sure machine is OFF and
unplugged, then allow unit to cool completely
before attempting to adjust the agitator height.
Step 2: Loosen the set screw in each set collar
to be adjusted.
Step 3: With the kettle mounted in the popper,
adjust the shaft so the Agitator’s Spur Gear
contacts half of the Drive Motor Spur Gear
(reference Spur Gear Placement image at right).
DO NOT set spur gears at full gear contact; it
can cause binding as the kettle is dumped.
Step 4: Once shaft is positioned correctly,
re-tighten the set screw in the set collar above
the crossbar to secure in place.
Step 5: Adjust clearance between the bottom of
the crossbar and the lower set collar to /32”
(thickness of a dime); then re-tighten set screw
to secure in place (see image below).
Step 6: Adjust set collar for agitator weight to
be between 3/ 6” to /4” above the agitator
weight. Once adjusted, re-tighten set screw to
secure in place.
Drive Motor
Spur Gear
Agitator’s Spur Gear
Agitator’s Spur Gear
shoul set halfway
up on Drive Motor
Spur Gear.
Set Collar
w/Set screw
Agitator shown for general image
reference only (li s not shown for
clarity).
A just clearance to
thickness of a ime.
3/16” to 1/4” max.
Spur Gear Placement
Steps to A just Set Collars
Set Collar above Crossbar
Lower Set Collar
(below Crossbar)
Set Collar
(for Agitator Weight)
Agitator Weight
Stir Ro
Crossbar

Master Pop Model No. 2451
© 2016 Gold Medal Products Co. Part No. 49659
MAINTENANCE INSTRUCTIONS
DANGER
Machine must be properly grounded to prevent electrical shock to personnel.
Failure to do so could result in serious injury, or death.
DO NOT immerse any part of this equipment in water.
DO NOT use excessive water when cleaning.
Keep cord and plug off the ground and away from moisture.
Always unplug the equipment before cleaning or servicing.
Make sure all machine switches are in the OFF position before plugging the
equipment into the receptacle.
008_051514
DANGER
Improper installation, adjustment, alteration, service, or maintenance can
cause property damage, injury, or death. Any alterations to this equipment
will void the warranty and may cause a dangerous condition. This appliance
is not intended to be operated by means of an external timer or separate
remote-control system. NEVER make alterations to this equipment. Read the
Installation, Operating, and Maintenance Instructions thoroughly before
installing, servicing, or operating this equipment.
014_020416
WARNING
No user serviceable parts inside. Refer servicing to qualified service
personnel.
011_051514
CAUTION
THE FOLLOWING SECTIONS OF THIS MANUAL ARE INTENDED ONLY
FOR QUALIFIED SERVICE PERSONNEL WHO ARE FAMILIAR WITH
ELECTRICAL EQUIPMENT. THESE ARE NOT INTENDED FOR THE
OPERATOR.
027_010914

Master Pop Model No. 2451
© 2016 Gold Medal Products Co. Part No. 49659
ORDERING SPARE PARTS
. Identify the needed part by checking it against the photos, illustrations, and/or
parts list.
2. Use only approved replacement parts when servicing this unit.
3. When ordering, please include part number, part name, and quantity needed.
4. Please include your model number, serial number, and date of manufacture (located
on the machine nameplate/data plate) with your order.
5. Address all parts orders to:
Parts Department
Gold Medal Products Co.
0700 Medallion Drive
Cincinnati, Ohio 4524 -4807
Or, place orders by phone or online:
Phone: [phone]
(5 3) 769-7676
Fax: [phone]
(5 3) 769-8500
E-mail: [email protected]
Web Page: gmpopcorn.com

Master Pop Model No. 2451
© 2016 Gold Medal Products Co. Part No. 49659
Replacing Broken Glass
Broken glass panels can be easily replaced. Gold Medal Products Co. does not ship glass. It can be
obtained from a local glass shop, always purchase tempered glass.
GLASS DIMENSIONS (Height x Width x Thickness)
Front Glass: 22 3/8” x 6 5/ 6” x /8” ( Piece)
Si e Glass: 22 3/8” x 4 5/ 6” x /8” (2 Pieces)
. Turn machine OFF, unplug unit and allow it to cool before attempting to replace glass.
2. Remove all loose pieces of glass (popper units: kettle may be removed to change glass).
3. Place a bungee (or large rubber band) around the unit to help hold the corner posts in
place, then remove dome.
4. Remove all rigid glass channels from around glass to be replaced, set channels aside
for reuse.
Note: The rigid channels may be wedged in the corner posts or top and bottom glass
extrusions, and must be removed before new glass can be installed.
5. Carefully remove the rest of the broken glass.
6. Apply decals (if desired) to new glass panel.
7. Slide rigid glass channels over exposed sides and bottom of new glass panel.
8. Lift motor plate just enough to allow the new glass panel to slide into the corner posts
and down into the bottom glass extrusion.
9. Carefully lower the motor plate until the top glass extrusion secures glass in place.
0. Reinstall dome, and remove bungee (popper units: reinstall kettle if removed).

Master Pop Model No. 2451
© 2016 Gold Medal Products Co. Part No. 49659
6 oz. Kettle Assembly (56000) – Agitator Assembly View
Item Part Description Part Number
56000
8
-
32 TALL ACORN NUT
47702
2
8
-
32 X /2 PHIL PAN M/S
47 4
3
DUMP HANDLE RH
493 4
4
DUMP HANDLE KNOB
47 0
5
SPACER (f
or Dump Handle)
49362
6**
8
-
32 X ” SET SCREW
77933
7
LID & AGITATOR ASSY (Complete Assembly)
59 03
8
KETTLE CROSSBAR ASSEMBLY
59 02
9
FRONT LID W/FORMED LIFTER
490 7
0
REAR KETTLE LID
490 6
AGITATOR BEARING HUB
43434
2
NEEDLE BEARING
47 06
3*
SPUR GEAR
KIT (Includes 2 gears with set
screws. Always replace Agitator Spur Gear and
Kettle Drive Motor Gear as a set.)
47059K
4
SET SCREW # 0
-
32 X 3/ 6
4 742
5
AGITATOR SHAFT
697 0
6
SET COLLAR 5/ 6 ID 5/8 OD
46649
7
STIR ROD
697 4
8
AGITATOR WEIGHT
697 5
15
16, 14
18 17
Co
mplete Agitator Assembly
(Inclu es Li s)
11
12
13*
14
*See Parts
List note.
3 4
8 9 10
7
1
2
**Apply Loctite 246 to
bottom of set screws
before installing.
5
1
8
6**
See Kettle
Bottom
Assembly.
Complete Kettle Assembly
Overall Kettle 5600 0
Agitator Assem bly 56000

Master Pop Model No. 2451
© 2016 Gold Medal Products Co. Part No. 49659
6 oz. Kettle Assembly (56000) – Kettle Bottom Assembly
Item Part Description Part Number
56000
KETTLE BOTTOM
ASSEMBLY (includes parts
listed below) 56000W
2
KETTLE SHELL
4943
3
KETTLE LEAD ASSY
49328
4
KETTLE GASKET
49368
5
8 OZ. KETTLE/HEATER
56006
6
8
-
32 TOP LOCK NUT (always replace if removed)
67943
7
450°F THERMOSTAT
(includes two 6
-
32 screws)
76089
8
THERMOSTAT SHUNT BAR
47 93
9
525
°F THERMOSTAT
(includes two 6
-
32 screws)
76702
5
4
8 9 7
General image
shown for reference
.
Lock Nut View
Top Lock Nut
-
Fastens
each thermostat and
ground. Install Lock Nut
with triangle in UP
position (as shown).
ONE TIME USE ONLY,
REPLACE NUT if
remove .
Thermostat
Wel e Stu
6
Kettle Bo ttom A ssembly 494 72N
Element View 56 000
2
3
Kettle Bottom Assembly
1

Master Pop Model No. 2451
© 2016 Gold Medal Products Co. Part No. 49659
Cabinet Exterior – Front View
Item Part Description Part Number
2451
FRONT GLASS DECAL
49748
2
8
-
32 X SLOT HEX HD
38207
3
DOME
77854
4
2 5/8” GLASS CHANNEL (used on sides of glass
panels) 49509
5
5” GLASS CHANNEL
(used on top and bottom of
side glass panels) 495 0
6
7” GLASS CHANNEL (used on top and bottom of
front glass panel) 495
7
GLIDE
FOOT (4 required)
49656
8
0
-
24 X 3/4 HEX HD
4 3 4
9
BLACK CRUTCH TIP
49 23
2
3
1
9
4
For Glass Panels,
see Replacing
Glass section.
5, 6
See Kettle
Assembly
Section
7, 8
2451EX Shown
General image shown for parts reference only.

Master Pop Model No. 2451
© 2016 Gold Medal Products Co. Part No. 49659
Cabinet Exterior – Rear View/Controls View
Item Part Description Part Number
2451
DOOR STOP
49666
2**
DOOR HARDWARE KIT
(includes door knob and
hinges – see individual component breakdown) 6 380
3
MAGNET
(not included in door hardware kit)
500 3
4
8
-
32 X 5/8 FL HD (
screw to hold magnet to knob,
not included in door hardware kit) 20067
5
PLEXIGLASS DOOR
49395
6
DROP
PANEL
49655
7
KNOB LID LIFT
47 20
8
8
-
32” X 3/8” PH PAN W/SEMS
42227
9
OLD MAID PAN
49 00
0
#SR
-
6P
-
4
STRAIN RELIEF
44073
*
LEAD
-
IN CORD 5 AMP PLUG
22038
2
SWITCH LABEL
49840
3
DPST ROCKER SWITCH
42532
**Door
Har ware Kit (
See
next
page for in ivi ual component
break own).
*
CAUTION: If supply cor
is amage , it must be
replace by Gol Me al
Pro ucts Co., its service
agent, or similarly
qualifie persons in
or er to avoi a hazar .
2451EX Shown
12 13
1
2**
5
6
7, 8
For Labels, see
Safety Label
Section.
9
3, 4
General image shown for parts reference only.
10
11*

Master Pop Model No. 2451
© 2016 Gold Medal Products Co. Part No. 49659
Door Hardware Kit 61380 – Individual Component Breakdown
Item Part Description Part Number
61380
KNOB LID LIFT
47 20
2
TEE BOLT
75267
3
8
-
32 X 5/ 6 SLOTTED HEX
49594
4
8
-
32 X 3/8 PH PAN W/SEMS
42227
5
ACORN NUT #8
-
32
47702
6
MALE HINGE SHORT LEFT
4 349
7
FEMALE HINGE LEFT HAND
6 359
8
FEMALE HINGE RIGHT HAND
6 373
9
MALE HINGE SHORT RIGHT
4 350
Complete Door Har ware Kit (P/N 61380)
(contains all parts shown above)
7
6
1
4
9
8
2
3
5