Part No. 350842-1 en
9/26/23
68-Inch Conveyor Pizza Ovens
Thank you for purchasing this Vollrath® product! Save this
manual for reference and the packaging in case shipping is
necessary.
SAFETY PRECAUTIONS
To help ensure safe use, please read and fully understand this
manual and all safety messages before operation!
WARNING
Warning indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
CAUTION
Caution indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
NOTICE: addresses practices not related to physical injury.
To reduce risk of injury or damage to the unit:
• Use only grounded electrical outlets matching the nameplate-
rated voltage.
• Use unit in a flat, level position.
• Before cleaning, touching, or moving, turn the unit off, allow it
to cool, and unplug it; do not touch when in operation.
• Keep unit and power cord away from open flames, electric
burners, or excessive heat.
• Attend unit when in use and unplug when not in use.
• Closely supervise unit in public areas and/or around children.
• Only operate undamaged and properly functioning units.
• Do not use an extension cord, power strip, or multi-outlet cord.
• Do not spray unit with liquids or cleaning products.
• Clean the unit exterior with non-abrasive cloths only.
• If the cord is damaged, contact Vollrath Technical Services.
Models JPO14, JPO18
Item Model Description
PO4-20814L-R
JPO14
14"-Wide Left to Right Conveyor, 208V
PO4-20814R-L
14"-Wide Right to Left Conveyor, 208V
PO4-22014L-R
14"-Wide Left to Right Conveyor, 220V
PO4-22014R-L
14"-Wide Right to Left Conveyor, 220V
PO4-24014L-R
14"-Wide Left to Right Conveyor, 240V
PO4-24014R-L
14"-Wide Right to Left Conveyor, 240V
PO4-20818L-R
JPO18
18"-Wide Left to Right Conveyor, 208V
PO4-20818R-L
18"-Wide Right to Left Conveyor, 208V
PO4-22018L-R
18"-Wide Left to Right Conveyor, 220V
PO4-22018R-L
18"-Wide Right to Left Conveyor, 220V
PO4-24018L-R
18"-Wide Left to Right Conveyor, 240V
PO4-24018R-L
18"-Wide Right to Left Conveyor, 240V
FUNCTION AND PURPOSE
This unit is intended to bake fresh/raw or frozen dough,
par-baked pizzas, and flatbreads in commercial foodservice
operations where pizza and other menu items are served.
It is not intended to cook deep-dish pizza or raw food, or for
use in high-volume pizzerias—nor is it intended for household,
industrial or laboratory use.
CLEARANCE AND ENVIRONMENT
• Do not place on surfaces or near walls, partitions, or kitchen
furniture unless they are made of or clad with non-
combustible, heat-insulating material.
• Ovens must not be used near or below curtains and other
combustible materials.
• Maximum ambient temperature: 104 °F (40 °C); do not place
unit adjacent to other heat-producing appliances.
• Only stack ovens with Vollrath kit 351036 or 351037.
OPERATOR'S MANUAL
Accessories/Kits
Model
D
e
scription
351036
14"-Wide Dual-Oven Stacking Spacer
351037
18"-Wide Dual-Oven Stacking Spacer
JPO14
JPO18
2
Ventless Operation
This unit has been UL tested and verified for ventless operation
under the following conditions:
• For use with pre-cooked foods such as pizza toppings,
sandwiches, and for melting cheese.
• Not for use with raw and/or fatty proteins such as: skin-on
bone-in chicken, hamburger meat, or sausages.
NOTICE: Based on independent UL testing, this product
complies with NFPA96 for ventless operation using the
EPA202 test method. Ventless allowance is dependent
upon Authority Having Jurisdiction (AHJ) approval.
UNPACKING AND INITIAL SETUP
When no longer needed, dispose of packaging and materials in
an environmentally responsible manner.
1. Remove packing material, tape, and protective plastic.
2. Clean any glue residue left over from the plastic or tape.
3. Place unit in desired location, on a hard, flat, stable surface.
4. Have one person lift one end of the unit while the other
person installs the legs. Repeat for the other side.
NOTICE: Operate unit only with included legs; use without
the legs restricts airflow and will cause the unit to overheat.
5. Install the load and unload trays to match the conveyor
direction. The load tray slants toward the conveyor. The
unload tray slants away from the conveyor.
6. Plug unit directly into a properly grounded outlet matching
the nameplate voltage.
FROZEN/FRESH/RAW DOUGH HANDLING TIPS
The following are general tips. Follow instructions specific to
your brand of dough or recipe.
• Remove wrapping from frozen dough balls.
• Place dough balls a few inches apart, in a proofing box or on a
sheet pan.
• Lightly spray top of dough balls with non-stick cooking spray,
then cover with freezer paper.
• Refrigerate dough balls overnight.
• Remove only dough balls needed for a few hours.
• Sprinkle flour, cornmeal, or Pizza Crisp onto a rolling surface.
• Roll dough, from the center and work your way to the edges,
turning the dough as you work to create circular shape.
• Use a rolling pin, dough press, or dough sheeter to create the
desired size and thickness.
• Place dough into a dark metal or seasoned pizza screen or pan.
NOTICE: Bake fresh/raw dough on a metal pizza screen or
pan; if placed directly on conveyor, it will stick or fall through.
CAUTION
Burn Hazard.
Do
not touch cookware, heating surface,
f
ood, or metal portions of the unit during
o
p
e
r
a
tion.
WARNING
Fire Hazard, Injury, or Property Damage.
Only use metal pizza screens or pans;
pape
r and cardboard will burn.
NOTICE: Dark metal or seasoned metal pans perform best.
Shiny metal or aluminum foil will reflect heat away from the
pizza and prevent browning.
PIZZA ASSEMBLY TIPS
• Spread sauce evenly from the center outward. Leave 1 inch from
the edge sauce-free so the crust will brown.
• Space toppings so moisture evaporates and the crust browns.
68-Inch Conveyor Pizza Ovens
3
68-Inch Conveyor Pizza Ovens
FEATURES
A. Heat Shields—help limit heat loss.
B. Crumb Trays—catch food that drops inside the unit.
C. Loading Tray—slants toward the unit; pizzas are placed
here when ready to run through the unit.
D. Unloading Tray—slants away from the unit; it is where your
pizza exits when finished.
E. Reset Button—prevents unit from operating when tripped.
See Troubleshooting section for details.
F. On/Off Switch—turns the unit on ( I ) or off (O).
G. Top-Heat Control Knob—controls temperature of top
heating tubes pizza passes under.
H. Bottom-Heat Control Knob—controls temperature of
bottom heating tubes beneath conveyor.
I. Conveyor Speed Knob—controls time required for pizza
to pass through the unit.
J. Power Cord—supplies electricity to the unit.
K. Circuit Breaker—provides electrical protection for optional
oven-stacker accessory.
L. Oven Stacker Receptacle—powers the optional stacking
accessory.
BEFORE FIRST USE
1. Clean the unit. See Daily Cleaning section for details.
4
68-Inch Conveyor Pizza Ovens
OPERATION
CAUTION
Burn Hazard.
D
o not touch cook
ware, heating surface, food,
or metal portions of the unit during operation.
WARNING
Fire Hazard, Injury, or Property Damage.
Only use metal pizza screens or pans;
paper or cardboard will burn.
Crumb trays must be installed before operation and in place
with each use; help prevent overheating and avoid a fire hazard.
Adjust Heat Shields
Adjust these shields to allow pizzas to pass into the oven, and to
regulate the amount of heat retained at each end.
Preheat
1. Plug the unit into a grounded outlet that matches the
nameplate-rated voltage.
CAUTION
Electrical Shock Hazard.
Using voltage other than the nameplate-rated
voltage, or modifying the cord or electrical
components, will
damage the unit, void the
warranty, and create a potential fire hazard.
2. Turn the unit on ( I ).
3. Set the top and bottom temperatures and conveyor speed.
Tip: Set the bottom temperature approximately 75 °F to
100 °F degrees hotter than the top temperature.
4. Preheat unit for 20 minutes.
Test
CAUTION
Burn Hazard.
Do not touch cookware, heating surface, food,
or metal portions of the unit during operation.
WARNING
Fire Hazard, Personal Injury, or Property
Damage.
Only use metal pizza screens or pans; paper
or cardboard will burn.
NOTICE: Bake fresh/raw dough on a metal pizza screen or
pan; if placed directly on conveyor, it will stick or fall through.
NOTICE: Dark metal or seasoned metal screens and pans
perform best. Shiny metal or aluminum foil will reflect heat
away from the pizza and prevent browning.
1. Place a sample pizza into the unit.
2. Monitor baking and adjust temperatures and conveyor
speed to prevent burning; evaluate the results.
Bake
1. Adjust top and bottom temperatures and conveyor speed
based on test results. Allow the new temperature to be
reached before loading another pizza; this could require trial
and error.
Maximum capacity:
If an Item Becomes Stuck
1. Turn the unit o (O).
2. Allow the unit to cool completely, then carefully use tongs to
remove the pizza without bumping the heating tubes.
CLEANING/MAINTENANCE
Contact an authorized service agent for a professional cleaning.
WARNING
Electrical Shock Hazard.
Keep liquids from entering the unit; this could
cause a short circuit or electrical shock. Do
not spray the unit, cord, plug, or immerse the
unit or components in liquid or foam.
WARNING
Burn Hazard.
Do not touch cookware, heating surfaces,
food, or metal portions of the unit during
operation. Allow unit to cool completely
before moving or cleaning.
Pizza Item
Suggestions
Fresh Dough
Adjust the entry shield all the way down and the
exit shield partially down to retain heat.
Par Baked
Adjust entry and exit shields half way down to
finish crust and brown the toppings.
JPO14 Models
12" diameter pizzas or multiple smaller pizzas
with a combined maximum diameter of 12".
JPO18 Models
16" diameter pizzas or multiple smaller pizzas
with a combined maximum diameter of 16".
5
68-Inch Conveyor Pizza Ovens
Daily Cleaning
NOTICE: Do not clean the unit with steel wool.
NOTICE: Heating tubes do not need cleaning; food will burn
off. Elements could look chalky look over time. This does not
affect performance.
1. After your last pizza, let the conveyor continue rotating and
watch for food that fell in the unit.
2. When debris reaches the front, turn the unit o (O).
3. When the fan stops, unplug the unit and let it cool completely.
4. When cool, use a brush or scrub pad to remove debris.
5. Use a soft cloth dipped in hot soapy water to wipe the
exterior and fan air intake under the unit. If needed, wipe
with degreaser to prevent buildup.
6. Empty and clean crumb trays.
TROUBLESHOOTING
Problem Potential Cause Course of Action
Unit does not heat and
conveyor belt does not move.
Unit is not plugged in. Plug in the unit.
Unit is not turned on.
Turn the unit on (I).
The wall breaker might be
tripped.
1. Inspect for a tripped breaker; reset if needed.
2. If breaker was not tripped and for broken heating elements,
contact Vollrath Technical Services.
The reset might be tripped. Look under the unit to see if an object is preventing the fan blades
of either fan from turning.
1. Turn the unit off (O), unplug it, and allow it to cool completely
(about 30 minutes).
2. Remove the object.
3. Plug in the unit and turn it on (I).
4. Press the reset button.
5. If the problem persists, contact Vollrath Technical Services.
Fan might be dirty. Inspect fan
blades on both fans to see if
they are dirty.
1. Turn the unit off (O), unplug it, and allow it to cool completely
(about 30 minutes).
2. Clean the fan blades.
3. Plug in the unit and turn it on ( I ).
4. Press the reset button.
5. If the problem persists, contact Vollrath Technical Services.
Unit heats and the conveyor
belt does not move.
There might be a problem with
the motor/speed control or
drive chain.
Contact Vollrath Technical Services.
Top or bottom heating
elements do not heat.
One or more heating elements
might have burned out.
Contact Vollrath Technical Services.
There might be a problem with
the top or bottom heat switch.
T
o
p
and/or bottom heat stays
on when the power is
o
ff (O).
There might be a problem with
the relay for the heat control.
Contact Vollrath Technical Services.
Special Instructions for Ventless Operation
Clean adjacent surfaces and kitchen equipment at least every
other month or more frequently as needed.
Preventative Maintenance
Contact an authorized service agent for a professional cleaning.
© 2023 The Vollrath Company L.L.C.
Problem Potential Cause Course of Action
Unit repeatedly overheats. Crumb trays are not installed. Verify crumb trays are installed.
Fan could be dirty. Verify fan blades are clean. See instructions above for inspecting
and cleaning the fan blades.
There could be a problem with
the fan.
Heat the unit for 10 minutes. If the fan does not run, contact Vollrath
Technical Services.
Top unit in a stacked
installation suddenly stops
working and the fan in the
stacker is not running.
The high limit switch could
have been triggered in the top
unit.
Press the circuit breaker button on the back of the unit. See
Features to reset the circuit. If the problem persists, contact Vollrath
Technical Services.
There could be an electrical
connection problem in the
stacker.
Contact Vollrath Technical Services.
The fan is not running. There might be a problem with
the fan or fan switch.
Run the unit for 10 minutes. If the fan does not run, contact Vollrath
Technical Services.
The oven is turned off (O) and
the fan is running.
The fan is operating properly and will continue to run until the unit
has sufficiently cooled.
SERVICE AND REPAIR
Serviceable parts are available on vollrathfoodservice.com.
To avoid serious injury or damage, never attempt to repair the unit or replace a damaged power cord yourself. Do not send units
directly to The Vollrath Company LLC. Please contact Vollrath Technical Services for instructions.
When contacting Vollrath Technical Services, please be ready with the item number, model number (if applicable), serial number, and
proof of purchase showing the date the unit was purchased.
WARRANTY STATEMENT FOR THE VOLLRATH CO. L.L.C.
This warranty does not apply to products purchased for personal, family or household use, and The Vollrath Company LLC does not
oer a written warranty to purchasers for such uses.
The Vollrath Company LLC warrants the products it manufactures or distributes against defects in materials and workmanship as
specifically described in our full warranty statement. In all cases, the warranty runs from the date of the end user’s original purchase
date found on the receipt. Any damages from improper use, abuse, modification, or damage resulting from improper packaging
during return shipment for warranty repair will not be covered under warranty.
Warrantied Parts: The warranty period is 2 years parts, 1 year labor.
Heater Tubes: The warranty period is 1 year, including labor. Heater tube glass damage is not covered by this warranty.
For complete warranty information, product registration, and new product announcements, visit vollrathfoodservice.com.
This is normal.
The Vollrath Company, L.L.C.
1236 North 18th Street
Sheboygan, WI 53081-3201 U.S.A.
Main Tel: 800.624.2051 or 920.457.4851
Main Fax: 800.752.5620 or 920.459.6573
Customer Service: 800.628.0830Cu
Canada Customer Service: 800.695.8560
Technical Services
Induction Products: 800.825.6036
Countertop Warming Products: 800.354.1970
Toasters: 800.309.2250
All Other Products: 800.628.0832
Part 350842-1 en 9/26/23
vollrathfoodservice.com
