HOT ROCKS HR-70-22 User manual

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User Manual / Hot Rocks
User Manual
ALL GEN 3 MODELS
Keep this manual with the oven. This is the property of the end user.
Serial number

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User Manual / Hot Rocks
TABLE OF CONTENTS
1. GENERALITIES............................................................................................................................................. 6
1.1 Revisions..................................................................................................................................................... 6
1.2 Warnings ..................................................................................................................................................... 6
1.3 Service ........................................................................................................................................................ 7
1.4 Authorized technician.................................................................................................................................. 8
1.5 Denitions.................................................................................................................................................... 8
1.6 Labels.......................................................................................................................................................... 9
2. SPECIFICATIONS AND INSTALLATION ...................................................................................................... 10
2.1 Overall Dimensions ..................................................................................................................................... 10
2.2 Electrical Rating (per oven)......................................................................................................................... 11
2.3 Installation ................................................................................................................................................... 12
2.4 Connections ................................................................................................................................................ 12
2.4.1 Electrical Plug..................................................................................................................................... 12
2.4.2 Plumbing ............................................................................................................................................ 13
2.5 Exhaust and ventilation ............................................................................................................................... 14
2.6 Type of Ventilation Installation..................................................................................................................... 15
2.7 Stacking Multiple Ovens.............................................................................................................................. 16
3. SAFETY PRECAUTIONS .............................................................................................................................. 17
4. OPERATION .................................................................................................................................................. 18
4.1 User interface ............................................................................................................................................... 18
4.1.1 Fan Speed Setting.............................................................................................................................. 19
4.1.2 Top Heat Setting................................................................................................................................. 20
4.1.3 Bottom Heat Setting ........................................................................................................................... 21
4.1.4 Baking On/Off..................................................................................................................................... 22
4.1.5 Cooking Time ..................................................................................................................................... 23
4.1.6 Visual Information............................................................................................................................... 24
4.1.7 System ............................................................................................................................................... 24
4.1.8 Recipes .............................................................................................................................................. 24

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4.2 System ....................................................................................................................................................25-26
4.2.1 User Login.......................................................................................................................................... 27
4.2.2 Alarm .................................................................................................................................................. 28
4.2.3 About .................................................................................................................................................. 29
4.2.4 Monitoring........................................................................................................................................... 30
4.2.5 Running Stats..................................................................................................................................... 30
4.2.6 Date / Clock........................................................................................................................................ 31
4.2.7 Conveyor Chain Lubrication............................................................................................................... 32
4.2.8 Settings .............................................................................................................................................. 33
4.2.9 Maintenance...................................................................................................................................34-35
4.3 Initial Start-up .............................................................................................................................................. 36
4.4 Basic Troubleshooting Guide ...................................................................................................................... 37
4.5 Preheating the Stones................................................................................................................................. 38
4.6 Start-up........................................................................................................................................................ 39
4.7 Production ................................................................................................................................................... 39
4.8 Shutdown .................................................................................................................................................... 39
4.9 Emergencies ............................................................................................................................................... 39
5. MAINTENANCE............................................................................................................................................. 40
5.1 User Maintenance ....................................................................................................................................... 40
5.1.1 Schedule ............................................................................................................................................ 40
5.1.2 Maintenance of wire mesh entry and exit conveyors ......................................................................... 41
5.1.3 Maintenance of stone conveyor ......................................................................................................... 41
5.1.4 Maintenance of entry and exit conveyor crumb trays......................................................................... 42
5.1.5 General maintenance of the exterior.................................................................................................. 42
5.1.6 Visually inspect the oven.................................................................................................................... 42
5.1.7 Maintenance of main conveyor crumb trays....................................................................................... 42
5.1.8 Lubricate both main conveyor chains.............................................................................................43-44
6. PIZZA RECIPES ........................................................................................................................................45-46

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CONGRATULATIONS!
YOU ARE NOW THE OWNER OF A HOT ROCKS OVEN!
Thank you for choosing us and giving us a chance
to do what we love.
You are part of the innovators who are revolutionizing the way
pizza is baked. From managing your staff, better customer
reviews, superior quality product, less waste & mistakes,
increasedprots,bothyouandyourbusinesswillbenetfrom
your leading edge.
You’re on your way to Rocking Everyday Life.
...............................................................................................................................................................................................
Join the Hot Rocks Pizza Ovens Community on Facebook.
You’ll get to share your success and passion with other Hot Rockers.
FOR YOUR SAFETY, THIS OVEN
CONFORMS TO
CSA Std. 1.8-2006 (R2012)
ANSI Std. Z83.11-2006 (2012)
ANSI/NSF STD. 4-2009
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NOTE :
THIS MANUAL SHOULD BE KEPT FOR FUTURE REFERENCE.
STORE IT SOMEWHERE EASILY ACCESSIBLE.

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1. GENERALITIES
1.1 Revisions
Revision Date Modications
0 2017-03-31 New owner manual
1 2017-07-18 Tablemodication
2 2017-12-13 New interface and connections
3 2018-05-16 Updated manual format
4 2018-08-13 Gasconnectionmodied
5 2020-02-06 ModiedforGEN3ovens
6 2020-11-02 Updated manual format
1.2 Warnings
DO NOT USE OR STORE GASOLINE, PRODUCTS WITH FLAMMABLE
VAPORS / LIQUIDS WITHIN THE VICINITY OF THIS, OR ANY OTHER APPLIANCE.
WARNING
This symbol species important safety instructions which, if not
followed, could endanger personal safety and/or property.
Read and follow all instructions in this manual before attempting
to operate the oven.
• Read, comprehend, and follow all instructions in this manual before starting. Keep this manual
in a safe place for regular reference.
• Only allow responsible individuals familiar with the instructions to operate the oven. Be sure
to know the controls, and how to stop the oven quickly.
• Never put hands near moving parts.
• Only allow authorized technicians to perform the maintenance of the oven.
• Remove all obstacles which may interfere with the oven’s function.
• Clear the work area of any items such as electrical wires, buckets, knives, etc.
• Do not sit or stand on the oven.
Failure to comply with these instructions may result in personal injury.

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Priortodeterminethepropermethodtodisposeofwastefromthelocalofceofthe
Environmental Protection Agency. Recycling centers are established to properly dispose of materials
in an environmentally safe fashion.
WARNING
This oven should only be operated by staff that has read, understood
and will respect warnings and instructions regarding this oven in the
user manual. Save these instructions for future reference.
DO NOT SPRAY LIQUIDS OR VAPORS ON, OR NEAR, ELECTRICAL EQUIPMENT.
DO NOT USE THIS APPLIANCE IF ANY OF ITS PARTS HAVE BEEN UNDER WATER.
IMMEDIATELY CONTACT A QUALIFIED SERVICE TECHNICIAN TO INSPECT THE
APPLIANCE AND TO REPLACE ANY PARTS WHICH WERE SPRAYED OR
SUBMERGED UNDER WATER.
• Always turn off the oven with the main switch or leave it on standby mode after the work is done.
Never leave a running oven unattended.
• Always disconnect the electric plug and wait until the oven has cooled before attempting any
maintenance.
• Do not wear loose-ttingclothesorjewelleryastheymaygetcaughtinthemovingpartsoftheoven.
• Alwayswearappropriateshoestoprevent,topreventinjurycausedbymovingtheovenorhotobjects 
falling from the oven.
• Workonlyinfulldaylightorwithsufcientarticiallight.
• Do notoperatetheovenwhileundertheinuenceofalcohol,drugsoranyillegalsubstance.
1.3 Service

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1.4 Authorized technician
All installationsand/orserviceonanyHotRocksovensmustbeperformedbyqualied,certied,
licensed and/or authorized installers and technical service personnel. All electrical, gas and
plumbing connections must be made by authorized technicians and in compliance with all electrical,
gas, plumbing and safety requirements.
It is possible to obtain these services by contacting Hot Rocks customer service or a local service
companies. Refer to the Hot Rocks website for a list.
1.5 Denitions
USER
A user is those who will operate the oven. There are two different levels of users; basic user and
advanced user.
BASIC USER
Basic users are those who will work everyday with the oven to cook pizza. A basic user has been
trained by an advanced user or an authorized technician to safely operate the oven. They can also
perform daily and weekly operator maintenance.
ADVANCED USER
Advanced users are those who received the proper training from the authorized technician to
perform monthly operator maintenances. They can lock cooking parameters from the basic user.
QUALIFIED AND/OR AUTHORIZED TECHNICIAN
Qualied or authorized operating personnel are those who have carefully read the information in
this manual and are familiar with the oven’s functions or have had previous experience operating
Hot Rocks ovens.
QUALIFIED INSTALLATION PERSONNEL
Qualiedinstallationpersonnelcanberepresentedbyanindividual,arm,acorporationora
company which will perform and is responsible for:
1.The installation of gas piping from the outlet side of the gas meter or service regulator when
 themeterisnotprovided,andtheconnectionandinstallationofthegasappliance.Thequalied
installation technician must be experienced in such work, familiar with all required precautions,
 andcomplywithallrequirementsofstateorlocalauthoritieshavingjurisdiction.Referencein
Canada: Canadian Standard CAN/ CSA-B149.1 and Z223.1 / NFPA 54 (Natural and/or propane
gas installation code)
2.The installation of electrical wiring from the electric meter, main control box or service outlet to the
electricappliance.Thequaliedinstallationtechnicianmustbeexperiencedinsuchwork,familiar
with all required precautions, and comply with all requirements of state or local authorities having
 jurisdiction.
3.The appliance, when installed, must properly be electrically grounded in accordance with local
codes. In the absence of local codes, it needs to respect the National Electrical code ANSI/NFPA
70, or the Canadian Electrical code, CSA 22.1 No 109 or conform to UL STD 197.

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1.6 Labels
EACH HOT ROCKS OVEN CONTAINS THE FOLLOWING LABELS (NOT TO SCALE).
THEY SHOULD NEVER BE REMOVED.
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DANGER-WARNING
Neverputyourhandsinsidetheovenwhiletheconveyor
ismoving.

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2. SPECIFICATIONS AND INSTALLATION
2.1 Overall Dimensions
* When stacking multiple ovens, a high temperature silicone must be applied between each
unit to ensure a proper seal. Refer to section 2.7.
HR-70-22 HR-70-33 HR-93-33
BAKING SURFACE 70 inch 178 cm 70 inch 178 cm 93 inch 236 cm
CONVEYOR WIDTH 22 inch 56 cm 33 inch 84 cm 33 inch 84 cm
FULL LENGTH 123 1/2 inch 314 cm 123 1/2 inch 314 cm 146 1/2 inch 372 cm
WIDTH 50 1/2 inch 128 cm 61 1/2 inch 156 cm 61 1/2 inch 156 cm
hotrocksoven.com 855 395-5252 [e-mail]
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2.2 Electrical Rating (per oven)
WARNING
Improper installation, adjustments, alteration, service or maintenance
could result in property damage, injury or even death.
2.3 Installation
Prior to the installation, make sure that:
• Entrance of the building all the way to the desired location respects the overall dimensions of the oven
model. See section 2.1 for measurements.
• The oven will not be enclosed, and there is a proper venting hood.
• Theconnectionsrequiredtostarttheovenarealreadyinstalledandveriedtobeworking.
• A minimum of 6 inches of clearance all around the oven.
RefertotheHotRocksspecicationsheettobeinformedoftheinstallationrequirements.
For additional details, refer to the following documents:
• 3-0026-EA-HotRocks-SpecicationSheet
• 7-0055-EA - Hot Rocks - Technician Manual
These documents are available on the Hot Rocks website.
CSAStd.1.8‐2006(R2012)
ANSI Std. Z83.11-2006 (2012)
ANSI/NSF STD. 4-2009
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Voltage Amps Volt-Ampere Phase Hertz Cabling
All Models 208-240V 10A 2400V-A
maximum 1PH 60Hz 3 wire cord
Electrical Rating (per deck)

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2.4 Connections
2.4.1 Electrical Plug
The Hot Rocks oven requires a dedicated electrical inlet to the following
specications:208-240V/1PH/60Hz-10A.Itishighlyrecommendedtoinstall
a“twist-lock”plug.Thewiringshouldbedonebyaqualiedelectrician,in
accordance with the local codes.
* Note that the plug and receptacle are not included, only the power cord.
Back view of the oven
Example of a
recommended
twist lock plug
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#

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2.4.2 Plumbing
WARNING
Always turn off the gas when plugging or unplugging the oven.
WARNING
The gas pressure must be adjusted between 6’’ and 8’’ W.C. or 15 mBar
to 20 mBar for internationals.
GAS ENTRY CONNECTION
The Hot Rocks oven is on casters and is to be connected to the gas line by
exibletubing.AsafetychainmustretaintheHotRocksoventothewallto
preventitfrommoving.Thelengthofthesafetychainmuststoptheexible
hose from completely straightening.
WARNING
Always turn off the main power switch before plugging or unplugging
the oven. See section 2.4 for location of the switch.
The Hot Rocks oven requires a gas inlet of either natural or propane gas,
depending on the model purchased. It is mandatory to install a gas valve to
safely shutoff gas to the appliance. It is highly recommended to install a
quarter turn gas valve and a “quick connect” plug, for ease of maintenance.
Theconnectionmustbedonebyaqualiedtechnicianwhohasproper
certicationintheareaandinaccordancewithlocalcodes.
* Note that the gas hose does not come with the unit. The customer
must purchase one and have it available on site for the installation day.

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2.5 Exhaust and ventilation
A Hot Rocks oven requires a ventilation hood to operate correctly and safely.
WARNING
The areas surrounding the unit should be kept clear to allow
necessary air ow; which is required for proper combustion and
operation. The unit should also be positioned for easy maintenance
access.
WARNING
According to local code, this oven could be interlocked with the
venting hood. Contact Hot Rocks customer service for document
7 0025 EA VENTILATION INTERLOCK FOR GAS OVENS.
Do not have fans blowing directly onto the oven and wherever possible avoid
opening windows next to the oven sides, or using wall type fans. Draft passing
directly through the oven could cause severe inconsistencies and cooking
problems.
WARNING
All exhaust systems are required to have an air make-up system
that replaces 100% of the exhausted air. Windows, doors, and other
openings into the establishment cannot be used for the purposes
of providing air make-up. A separate duct providing air into the
building is required.
WARNING
This oven is to be installed in an area with adequate air supply and
clearance for air openings into the combustion chamber of the unit.

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WARNING
This oven generates a lot of heat and must never be enclosed.
2.6 Type of Ventilation Installation
* Verify local regulations for hood specications.
** The drawing above is used as an example to illustrate how the oven is to be properly vented.
Actual installs may look different, but must respect the minimum values.
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2.7 Stacking Multiple Ovens
When stacking multiple ovens, a high temperature silicone must be applied between each unit to ensure a
proper seal (shown in red). The seal must go all the way around the ovens with no gaps.
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WARNING
Make sure that the silicone seal is smooth with no bubbles; it must not
allow food particles in between units.

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3. SAFETY PRECAUTIONS
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For Safety Read Before Operating
WARNING
Failure to follow these instructions could result in a re or explosion
that may cause property damage, personal injury or death.
* Note that to restart the oven, wait 5 minutes in order to clear out any remaining gas in the oven.
This appliance does not have a pilot. it is equipped with an ignition device which automatically
lights the burner. DO NOT LIGHT THE BURNER MANUALLY.
Beforeoperating,smellaroundtheovenforgasbesuretosmellclosetotheoorassomegases
areheavierthanairandwillsettleontheoor.
What to do if there is a smell of gas
1. Immediately close the main manual gas valve.
2. Do not turn on any appliances.
3. Do not touch any electric switch.
4. Immediately contact the gas supplier using a neighbor’s pone.
Do not use any phones in the builgind.
5. Follow the gas supplier’s instructions.
6. Ifitisnotpossibletoreachthegassupplier,contacttheredepartment.

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4. OPERATION
4.1 User interface
* Note that this is referred as the “main screen.”
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4.1.1 Fan Speed Setting
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Pressing the single large arrow will increase or decrease the fan speed by 1%. Pressing the double
arrows, will increase or decrease by 10%.
Touchtheconrmbuttontoreturntothemainscreen.Thefanspeedisadjustablefrom20%to100%.
* Note that this page can be password protected by the advanced user. See section 4.2 for options.
Pressing the fan percentage opens the “FAN SPEED” page.

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4.1.2 Top Heat Setting
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Pressing the single large arrow will increase or decrease the top heat by 1°F. Pressing the double arrows,
will increase or decrease by 10°F.
Touchtheconrmbuttontoreturntothemainscreen.Theselectedvaluewillautomaticallybeapplied. 
Thetopheatisadjustablebetween0and750°F.Thetoptemperaturemustbehigheruptoamaximum 
of 150°F (65°C) more than the bottom temperature. For more stability and an even product, we
recommend setting the top temperature between 60°F (15°C) and 150°F (85°C) higher than the
bottom temperature.
* Note that this page can be password protected by the advanced user. See section 4.2 for options.
Pressing the top temperature display opens the “TOP HEAT” page.