Vulcan-Hart 900RX Series User manual

©ITW Food Equipment Group, LLC
3600 North Point Blvd.
Baltimore, MD 21222
RETAIN THIS MANUAL FOR FUTURE USE
FORM F-38315 (rev. 07-16)
INSTALLATION & OPERATION MANUAL
HEAVY DUTY GAS GRIDDLES
MODELS
924RX
936RX
948RX
960RX
972RX
MSA24 ASA24
MSA36 ASA36
MSA48 ASA48
MSA60 ASA60
MSA72 ASA72
AGM24
AGM36
AGM48
AGM60
AGM72
948RX
AGM48
MSA48
For additional information on Vulcan or to locate an authorized parts and
service provider in your area, visit our website at www.vulcanequipment.com

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IMPORTANT FOR YOUR SAFETY
THIS MANUAL HAS BEEN PREPARED FOR PERSONNEL QUALIFIED TO
INSTALL GAS EQUIPMENT, WHO SHOULD PERFORM THE INITIAL FIELD
START-UP AND ADJUSTMENTS OF THE EQUIPMENT COVERED BY THIS
MANUAL.
POST IN A PROMINENT LOCATION THE INSTRUCTIONS TO BE FOLLOWED IN
THE EVENT THE SMELL OF GAS IS DETECTED. THIS INFORMATION CAN BE
OBTAINED FROM THE LOCAL GAS SUPPLIER.
IMPORTANT
IN THE EVENT A GAS ODOR IS DETECTED, SHUT
DOWN UNITS AT MAIN SHUTOFF VALVE AND
CONTACT THE LOCAL GAS COMPANY OR GAS
SUPPLIER FOR SERVICE.
FOR YOUR SAFETY
DO NOT STORE OR USE GASOLINE OR OTHER
FLAMMABLE VAPORS OR LIQUIDS IN THE VICINITY OF
THIS OR ANY OTHER APPLIANCE.
IN THE EVENT OF A POWER FAILURE, DO NOT
ATTEMPT TO OPERATE THIS DEVICE.
Improper installation,
adjustment, alteration, service or maintenance
can cause property damage, injury, or death.
Read the installation, operating and maintenance
instructions thoroughly before installing or
servicing this equipment.

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TABLE OF CONTENTS
GENERAL…………………………………………………………………………………………...…...…
Specifications…………………………………………………………………………………….........
INSTALLATION…………………………………………………………………………………………….
Unpacking……………………………………………………………………………………………….
Location………………………………………………………………………………………………….
Installation Codes and Standards…………………………………………………………………….
Griddle Mounted On Stands with Casters……………………………………………………………
Flue Connections……………………………………………………………………………………….
Stands……………………………………………………………………………………………………
Gas Connections………………………………………………………………………………………..
Testing the Gas Supply System………………………………………………………………………
Gas Pressure Regulator Installation………………………………………………………………….
Electrical Connection –900RX Models………………………………………………………………
OPERATION………………………………………………………………………………………………..
Before First Use…………………………………………………………………………………………
Seasoning the Griddle………………………………………………………………………………….
Controls –900RX Models……………………………………………………………………………..
Controls –MSA and ASA Models………..…………………………………………………………..
Controls –AGM Models………………………………………………………………………………..
Pilot Lighting Procedure –900RX Models…………………………………………………………...
Pilot Lighting Procedure –MSA and ASA Models…..……………………………………………..
Pilot Lighting Procedure –AGM Models……………………………………………………………..
Using the Griddle……………………………………………………………………………………….
Cleaning the Griddle……………………………………………………………………………………
ADJUSTMENTS……………………………………………………………………………………………
Calibration –900RX and MSA Models………………………………………………………………
Leveling………………………………………………………………………………………………….
Pilot Adjustment…………………………………………………………………………………………
SHUTDOWN OF GRIDDLE WITH ELECTRIC IGNITION SYSTEM –900RX MODELS………….
SHUTDOWN OF GRIDDLE –MSA AND ASA MODELS….…………………………………………..
SHUTDOWN OF GRIDDLE WITH STANDING PILOT SYSTEM –AGM MODELS………………..
EXTENDED SHUTDOWN…………………………………………………………………………………
MAINTENANCE…………………………………………………………………………………………….
Lubrication……………………………………………………………………………………………….
Vent………………………………………………………………………………………………………
Service and Parts Information…………………………………………………………………………
TROUBLESHOOTING……………………………………………………………………………………
ACCESSORY INSTALLATION…………………………………………………………………………..
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INSTALLATION, OPERATION AND CARE OF
HEAVY DUTY GAS GRIDDLES
GENERAL
Heavy Duty Gas Griddles are produced with quality workmanship and materials. Proper
installation, usage and maintenance of your griddle will result in many years of
satisfactory performance.
Thoroughly read this entire manual and carefully follow all of the instructions provided
Model
Number of Burners
BTU/hr Input
Rating
924RX/MSA24/ASA24/AGM24
2
54,000
936RX/MSA36/ASA36/AGM36
3
81,000
948RX/MSA48/ASA48/AGM48
4
108,000
960RX/MSA60/ASA60/AGM60
5
135,000
972RX/MSA72/ASA72/AGM72
6
162,000
INSTALLATION
Before installing, verify that the type of gas supply (natural gas or propane) agrees with
the specifications on the rating plate located on the outside right of the unit. If the supply
and equipment requirements do not agree, do not proceed with the installation. Contact
your dealer immediately. It is recommended that a trained gas service technician with the
necessary tools, instruments and skills perform the installation of the griddle.
UNPACKING
This griddle was inspected before leaving the factory. The carrier assumes full responsibility for the
safe delivery upon acceptance of the shipment. Check for possible shipping damage immediately after
receipt.
If the griddle is found to be damaged, complete the following steps:
1. Carrier must be notified within 5 business days of receipt.
2. Carrier’s local terminal must be notified immediately upon discovery (note time, date, and
who was spoken to), and follow up and confirm with written or electronic communication.
3. All original packing materials must be kept for inspection purposes.
4. The griddle cannot have been moved, installed, or modified.
5. Notify Vulcan Customer Service immediately at 800-814-2028.
Carefully unpack your griddle and make sure that no parts are discarded with packaging
material. A pressure regulator designed to operate with the griddle has been supplied and
must be installed before the griddle is placed into service (Refer to GAS PRESSURE
REGULATOR INSTALLATION in this manual).

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LOCATION
The installation location must be kept free and clear of combustibles. When installing,
never enclose the bottom of the griddle with a raised curb or other constructions that
would obstruct flow of air into or out of the griddle. Adequate clearance for air openings
into the combustion chamber must be provided. Make sure there is an adequate supply of
air in the room to replace air taken out by the ventilation system.
Do not permit air to blow directly at the griddle. Avoid open windows next to the griddle
wherever possible. Avoid wall-type fans which create air cross-currents within the room.
This griddle is Design Certified for installation on a non-combustible counter with 4” legs,
or combustible floor with 25” high stand.
INSTALLATION CLEARANCES
COMBUSTIBLE CONSTRUCTION
NON-COMBUSTIBLE CONSTRUCTION
Back:
6”
0”
Right
Side:
6”
0”
Left Side
6”
0”
INSTALLATION CODES AND STANDARDS
The griddle must be installed in accordance with:
In the United States of America:
1. State and local codes.
2. National Fuel Gas Code, ANSI-Z223.1/NFPA #54 (latest edition). This shall include but
not be limited to: NFPA #54 Section 10.3.5.2 for Venting. Copies may be obtained
from The American Gas Association Accredited Standards Committee Z223, @ 400
N. Capital St. NW, Washington, DC 20001 or the Secretary Standards Council, NFPA,
1 Batterymarch Park Quincy, MA 02169-7471
NOTE: In the Commonwealth of Massachusetts
All gas appliances vented through a ventilation hood or exhaust system equipped with
a damper or with a power means of exhaust shall comply with 248 CMR.
3. NFPA Standard # 96 Vapor Removal from Cooking Equipment, latest edition, available
from the National Fire Protection Association, Batterymarch Park, Quincy, MA 02269.
In Canada:
1. Local codes.
2. CAN/CSA-B149.1 Natural Gas Installation (latest edition)
3. CAN/CSA-B149.2 Propane Installation Code (latest edition), available from the
Canadian Gas Association, 178 Rexdale Blvd., Etobicoke, Ontario, Canada M9W 1R3

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GRIDDLES MOUNTED ON STANDS WITH CASTERS
Griddles mounted on stands with casters must use a
flexible connector (not supplied) that complies with the
Standard for Connectors for Movable Gas Appliances
ANSI Z21.69•CSA6.16, and a quick-disconnect device
that complies with Gas Fuel, ANSI Z21.3•CSA6.9. In
addition, adequate means must be provided to limit
movement of the appliance without depending on the
connector and the quick-disconnect device (or its
associated piping) to limit appliance movement. Attach
the restraining device at the rear of the griddle as
shown in Fig. 1.
Fig. 1
If disconnection of the restraint is necessary, turn off the gas supply before
disconnecting. Reconnect the restraint prior to turning the gas supply on and returning
the griddle to its installation position.
Casters are only supplied on a griddle stand. If the griddle is moved for any reason the
griddle should be re-leveled (see LEVELING in this manual).
FLUE CONNECTIONS
Do not obstruct the flow of flue gases from the flue, located at the rear of the griddle. It is
recommended that flue gases be ventilated to the outside of the building through a
ventilation system installed by qualified personnel.
From the termination of the flue to the filters of the hood venting system, a minimum
clearance of 18” must be maintained.
Information on the construction and installation of ventilating hoods may be obtained from
the standard for “Vapor Removal from Cooking Equipment”, NFPA No. 96 (latest edition),
available from the National Fire Protection Association, Batterymarch Park, Quincy, MA
02269.
STANDS
The griddle has an optional 24” high by 30” deep stainless steel stand with casters. The
two front casters lock. The stand includes a top shelf with marine edges style lip and a
lower shelf.
GAS CONNECTIONS
Gas supply connections and any pipe joint compound must be resistant to the
action of propane gases.
Use a ¾” NPT gas supply line for the griddle inlet, located at the rear of the griddle. All
flexible and semi-rigid gas supply lines must comply with the applicable ANSI standard.
To ensure maximum operating efficiency this appliance must be connected with a gas
supply line of solid pipe or a commercial type Flexible Connector with the net inside
diameter (I.D.) as large as or larger than the gas pipe inlet on this appliance. Codes
require that a gas shutoff valve must be installed in the gas line upstream of the griddle.
Prior to lighting, check all joints in the gas supply line for leaks.
Use soap and water solution. Do not use an open flame.

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After checking for leaks all lines receiving gas should be fully purged to remove air.
TESTING THE GAS SUPPLY SYSTEM
When the gas supply pressure exceeds ½ psig (3.45 kPa), the griddle and its individual
shutoff valve must be disconnected from the gas supply piping system.
When the gas supply pressure is ½ psig (3.45 kPa) or less, the griddle should be isolated
from the gas supply system by closing its individual manual shutoff valve.
GAS PRESSURE REGULATOR INSTALLATION
A gas pressure regulator is supplied with the griddle and must be installed. Install the
regulator as close to the griddle on the gas supply line as possible. Make sure that the
arrow on the underside of the regulator is oriented in the direction of gas flow to the
griddle (Fig. 2) and the regulator is positioned with the vent plug and adjustment screw
upright (Fig. 3). Check and set the gas pressure after the regulator is installed. The
pressure should be set for 4” water column (W.C.) for natural gas and 10” W.C. for
propane gas while all burners are on. It is recommended that a trained gas service
technician with the necessary tools, instruments and skills perform the installation of the
griddle and gas pressure regulator.
Fig. 2
Fig. 3
The supply pressure (upstream of the regulator) should be 7-9” W.C. for natural gas and
11-12” W.C. for propane gas. At no time should the griddle be connecte d to supply
pressure greater than ½ psig (3.45 kPa) or 14” W .C.
ELECTRICAL CONNECTIONS –900RX MODELS
Electrical and grounding connections must comply with the
applicable portions of the National Electrical Code and/or other local electrical
codes.
Disconnect the electrical power to the griddle and follow lockout /
tagout procedures.
Appliances equipped with a flexible electric supply cord are provided
with a three-prong grounding plug. It is imperative that this plug be connected into
a properly grounded three-prong receptacle. If the receptacle is not the proper
grounding type, contact an electrician. Do not remove the grounding prong from
this plug.
Power supply for electric ignition is 120 volts, 1 amp, 50/60 Hertz, 1 phase.
Do not connect the griddle to electrical supply until after gas connections are made.

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OPERATION
The griddle and its parts are hot. Use care when operating, cleaning
or servicing the griddle.
BEFORE FIRST USE
Remove all packing material and protective plastic from the surfaces of the unit. Before
leaving the factory the griddle is coated with vegetable oil as a rust inhibitor. Remove this
film when the griddle plate is being cleaned prior to its first cooking use. Heat the griddle
to 200-300°F to loosen and melt the coating, then clean the surface by adding water or
a non-corrosive, grease dissolving commercial cleaner, following the manufacturer’s
directions. Scrape the oil residue from the plate with a griddle scraper. Rinse thoroughly
and wipe dry with a soft clean cloth. Clean all accessories.
SEASONING THE GRIDDLE
Season the griddle to avoid possible surface corrosion before first use, and after every
cleaning. This will also help reduce the sticking of cooked food product. Heat griddle to a
low temperature (300-350°F) and apply a small amount of cooking oil –about one ounce
per square foot of surface. Use a soft lint-free cloth to spread the oil over the entire
griddle surface to create a thin film. Wipe off any excess oil with a cloth. Repeat the
procedure until the griddle has a slick, mirror-like finish.
CONTROLS –900RX MODELS
Fig. 4
thermostat
knob
griddle shut-off valve
(shown in ON position)
power switch
pilot adjustment screw
pilot safety valve push button
pilot and burner sight holes

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This model features an electric ignition system that is controlled by a momentary power
switch. The power switch turns the electric ignition system off and on only and will only
supply power to the igniters when held down in the ON position. The burners and pilots
will continue to work with power switch in the OFF position until the gas supply to the unit
is cut off or the griddle gas shut-off valve is turned to the OFF position (Fig. 6). In the
event of a failure of the electronic ignition system, it is possible to ignite the pilots with an
outside source (such as a lit taper, etc). See pilot lighting procedure.
There is one pilot and one safety valve for every two burners except on the 36” and 60”
models. The 36” and 60” models have an odd number of main burners, therefore one of
the sets of pilots and safety valves in these models will control only one main burner.
The pilot burners are aligned with the pilot safety valve bush buttons. The pilot burners
are inset 12” from the front panel. The pilots are monitored by thermocouples and pilot
safety valves. If the pilot goes out, the safety valve will shut-off the gas supply to the
pilot and main burners.
Each 12” section of the griddle is independently controlled by a mechanical snap-action
thermostatic valve. The thermostats have an operating range of 200 to 550 degrees.
Once pilots are lit, turning the thermostats to the desired setting is all that is required to
put the unit into service.
Each 12” griddle section may be turned off independently by setting the corresponding
thermostat to the OFF position. You may also leave all thermostats set at the desired
settings and turn all sections off at once by turning the griddle shut-off valve to the OFF
position (Fig. 6). This will turn off the gas supply to the pilots and thermostats for all
sections. Turning the griddle shut-off valve to the ON position (Fig. 5) and relighting the
pilots at the beginning of the next cooking shift will be required to put the unit back in
service. See pilot lighting procedure.
Fig. 6
Fig. 5
ON
OFF

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CONTROLS –MSA AND ASA MODELS
This model features a standing pilot that must be manually lit with an outside ignition
source (such as a lit taper, etc). The pilot is monitored by a thermocouple and pilot
safety valve. If the pilot goes out, the safety valve will shut-off the gas supply to the pilot
and main burners. There is one pilot and one safety valve for every two burners except on
the 36” and 60” models. The 36” and 60” models have an odd number of main burners,
therefore one of the sets of pilots and safety valves in these models will control only one
main burner. The pilot burners are aligned with the safety valve bush buttons. The pilot
burners are inset 12” from the front panel. See pilot lighting procedure.
Each 12” section of the griddle is independently controlled by a mechanical snap -action
thermostatic valve. The thermostats have an operating range of 200 to 550 degrees. If
the pilots are lit, turning the thermostats to the desired setting is all that is required to put
the unit into service.
pilot adjustment screw
thermostat
knob
pilot safety valve push button
Fig. 7
pilot and burner sight holes

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CONTROLS –AGM MODELS
The model is equipped with standing pilots. Gas will flow from the pilots as soon as the
main gas supply to the unit is turned on. The pilots are lit with the use of an outside
ignition source (such as a lit taper, etc). There is one pilot for every two burners except
on the 36” and 60” models. The 36” and 60” models have an odd number of main
burners; therefore, one of the sets of pilots in these models will control only one main
burner. The pilots are inset 12” from the front panel. See pilot lighting procedure.
Each 12” section of the griddle is independently controlled by an infinite heat control
valve. Once the pilots are lit, turning the burner control knob to the full ON position will
light each burner. The burners will be in the full ON position when the knobs are turned
all the way to the left (Fig. 10). The burners will be in the full OFF position when the
knobs are turned all the way to the right (Fig. 9). The height of the burner flame and
cooking plate temperature can be adjusted by turning the burner control knobs while
viewing burners through the burner sight holes.
burner control
knob
pilot adjustment screw
Fig. 9
Fig. 8
Burner control knob in the OFF position.
Turned all the way to the right.
Burner control knob in the full ON
position. Turned all the way to the left -
225 degrees from the OFF position.
Fig. 10
burner and pilot sight
holes

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PILOT LIGHTING PROCEDURE –900RX MODELS
1. Turn the griddle shut-off valve to the OFF position (See Fig.6 on page 9). Wait 5 minutes to allow any
gas that may have accumulated in the burner compartment to escape.
2. Turn the griddle shut-off valve to the ON position (See Fig. 5 on page 9).
3. Push and hold the power switch in the ON position. The switch will illuminate and you will hear a
“clicking” sound.
4. While continuing to hold the power switch in the ON position, depress and hold the red button on the
pilot safety valve while the electric igniters light the corresponding pilots. You will have to monitor the
pilot burners through the pilot sight holes. The pilot burners are aligned with the red buttons on the pilot
safety valves. The pilot burners are inset 12” from the front of the unit.
5. Watch for the pilot burners to ignite. When the gas at the pilot has been burning for about 45
seconds, release the corresponding red button on the pilot safety valve. If the pilot does not remain
lit, repeat the procedure allowing more time before releasing the button. The amount of time
necessary to hold the safety valve button will increase at the initial installation of the unit and if the
main gas supply has been turned off for a long period of time. It may be necessary to adjust the pilot
valve to increase gas to the pilot.
6. Repeat steps until all pilots are lit.
7. The pilot burners can be lit manually in the event of a failure of the electronic ignition system. If
this happens, repeat steps 1-5 without holding the power switch in the ON position. You will have to
reach under the front of the unit and through the pilot cutout to ignite the pilots with an outside ignition
source (such as a lit taper, etc.) while again depressing the corresponding red button.
8. If after completing steps 1 –7 and the pilot does not light, turn the griddle shut-off valve to the OFF
position (See Fig. 6 on page 9) and contact an authorized service contractor.
pilot sight hole
power switch
12”
Fig. 11
griddle shut-off valve
pilot safety
valve button
pilot burner
pilot cutout
CUTAWAY VIEW

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PILOT LIGHTING PROCEDURE- MSA AND ASA MODELS
1. Turn the main gas shut-off valve to the OFF position. Wait 5 minutes to allow
any gas that may have accumulated in the burner compartment to escape.
2. Turn the main gas shut-off valve ON.
3. Depress and hold the safety valve button while lighting the corresponding pilot. You will have to
reach under the front of the unit to light with an outside ignition source (such as a lit taper, etc.) while
viewing thru the pilot sight hole.
4. When the gas at the pilot has been burning for about 45 seconds, release the safety valve button.
If the pilot does not remain lit, repeat the operation allowing more time before releasing the button.
The amount of time necessary to hold the safety valve button will increase at the initial installation of
the unit and if the main gas supply has been turned off for a long period of time. It may be
necessary to adjust the pilot valve to increase gas to the pilot.
5. Repeat steps until all pilots are lit.
6. If after completing steps 1-5 pilot does not light, turn off the main gas shut-off valve and contact an
authorized service contractor.
CUTAWAY VIEW
pilot burner
pilot cutout
12”
pilot safety
valve button
pilot sight
hole
Fig. 12

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PILOT LIGHTING PROCEDURE –AGM MODELS
1. Turn the main gas shut-off valve and all burner control knobs to the OFF position. Wait 5 minutes to
allow any gas that may have accumulated in the burner compartment to escape.
2. Turn the main gas shut-off valve ON.
3. While viewing through the pilot sight hole, you will have to reach under the front of the unit and through
the pilot cutout to ignite the pilots with an outside ignition source (such as a lit taper, etc.). It may be
necessary to adjust the pilot valve to increase gas to the pilot.
4. Repeat steps until all pilots are lit
5. To light main burners, turn individual burner control knobs to the full ON position.
6. If after completing steps 1-5 main burners do not light, turn off the main gas shut-off valve and
contact an authorized service contractor.
CUTAWAY VIEW
Fig. 13
pilot burner
pilot cutout
pilot sight
hole
12”
burner control
knob

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USING THE GRIDDLE
To preheat, turn the burners on about 20-25 minutes before cooking.
A uniform and systematic approach to loading the griddle will produce the most consistent
product results.
The griddle plate is steel, but the surface is relatively soft and can be scored or dented by
careless use of a spatula or scraper. Be careful not to dent, scratch, or gouge the plate
surface. Do not try to knock off loose food that may be on the spatula by tapping the
corner or the edge of the spatula on the griddle surface.
ZONE COOKING
This griddle features a tubular U-shaped burner in 12” sections, each controlled by
independent thermostats (900RX, MSA and ASA models) or manual valves (AGM
models). Each 12” section is a separate cooking zone, and allows cooking a wide variety
of products over a single griddle plate. The chart below is a suggested usage of zone
cooking.
When zone cooking, it is suggested that you start with your lowest temperature setting at
either side of the griddle, increasing the zone temperature as you move up the zone line.
These zone cooking guidelines will vary depending on product temperatures, size and
shape. This guide should be adjusted to suit your product and operational cooking
preference.
ZONE 1
(300°F)
ZONE 2
(350°F)
ZONE 3
(350°F)
ZONE 4
(400°F)
PRODUCT
Sausage
Eggs (Hard Fried)
Eggs (Scrambled)
Burger (Well Done)
Steak (Well Done)
Chicken Breast
Frozen Foods
Pork Chops
PRODUCT
PRODUCT
Steak (Rare)
Stir Fry Vegetables
Salmon
Fish Cakes
Lobster
Scampi
Pancakes
French Toast
Bacon
Omelet
Hash Browns
Canadian Bacon
Eggs (Sunny Side Up)
Boiled Ham
Steak (Medium Well)
Fresh Burger (Medium Well)
Small Frozen Burger (Medium Well)

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CLEANING THE GRIDDLE
Empty the grease drawer as needed throughout the day and regularly clean at least once
daily.
Clean the griddle regularly. A clean griddle always looks better, lasts longer and performs
better. To produce evenly cooked, perfectly browned griddle products keep the griddle
plate clean and free of carbonized grease. Carbonized grease on the surface hinders the
transfer of heat from the griddle surface to the food, resulting in spotty browning and loss
of cooking efficiency. Carbonized grease tends to cling to griddle foods, giving them a
highly unsatisfactory and unappetizing appearance.
To keep the griddle clean and operating at peak efficiency, follow these procedures:
AFTER EACH USE
Clean the griddle cooking surface accordingly to the type of surface on your model. See
the specific cleaning instructions by cooking surface finish. Empty the grease drawer
throughout the day as needed.
ONCE PER DAY
Thoroughly clean the griddle back splash, sides and front. Do not hit the backsplash with
a spatula or any other tool. This may create a gap between the splash and griddle plate
that is hard to clean. Remove, empty and wash the grease drawer in the same manner as
an ordinary cooking utensil.
ONCE PER WEEK
Clean the griddle surface thoroughly per the instructions for the surface finish of your
particular model. After cleaning the plate, the griddle should be seasoned according to
the instructions in this manual.
Clean stainless steel surfaces with a damp cloth and polish with a soft dry cloth. To
remove discoloration, use a griddle cleaner.
If the griddle usage is very high, consider conducting this weekly cleaning procedure
more than once per week.
CLEANING THE STANDARD STEEL GRIDDLE PLATE COOKING SURFACE
AFTER EACH USE
Clean the griddle cooking surface regularly with a griddle scraper during the work shift.
ONCE PER DAY
Turn the griddle off and allow it to cool down between 275°F-300°F, apply room temperature water and
clean it with a griddle scraper.
ONCE PER WEEK
Clean the griddle surface thoroughly. Use a griddle brick, screen, or Scotch Bright™ pad
on the surface as necessary. Rub with the grain of the metal while the griddle is still
warm (not hot). A detergent may be used on the plate surface to help clean it, but be sure
the detergent is thoroughly removed by flushing with clear water. After cleaning, reseason
the cooking surface according to the instructions in this manual. If the griddle usage is
very high, consider conducting this weekly cleaning procedure more than once per week.

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CLEANING THE OPTIONAL CHROME GRIDDLE PLATE COOKING SURFACE
AFTER EACH USE
Clean the griddle cooking surface regularly with a palmetto brush and a bladed griddle scraper during
the work shift. Never use an abrasive scouring pad or griddle brick on a chrome plate surface. The
chrome surface can be damaged by careless use of a spatula or scraper.
ONCE PER DAY
Clean chrome surfaces with a damp cloth and polish with a soft dry cloth.
ONCE PER WEEK
If the chrome plate has become carbonized or blackened, use a non-abrasive, non-
silicated cleaner such as Bon Ami®. Be sure the cleaning agent is thoroughly removed by
flushing with clear water. Wipe with a damp cloth and polish with a soft dry cloth. After
cleaning, reseason the cooking surface according to the instructions in this manual.
CLEANING THE OPTIONAL RAPID RECOVERY™ COMPOSITE GRIDDLE PLATE COOKING
SURFACE
The Rapid Recovery™ griddle plate is a composite material which is engineered to provide a high heat
transfer rate to the food. The top surface is stainless steel and can be scored or dented by careless use
of a spatula or scraper.
AFTER EACH USE
Clean the griddle cooking surface regularly with Nemco Easy Grill Scraper™ or similar type of griddle
scraper during the work shift.
ONCE PER DAY
Turn the griddle off and allow it to cool down between 275°F-300°F, apply room temperature water and
clean it with a griddle scraper.
ONCE PER WEEK
Clean the griddle surface thoroughly with water, Scotch-BriteTM Quick Clean Griddle System or Ecolab
Grease Express™ High-Temp Grill Cleaner. Be sure the cleaning agent is thoroughly removed by
flushing with clear water. After cleaning, reseason the cooking surface according to the instructions in
this manual.
If the griddle usage is very high, consider conducting this weekly cleaning procedure more than once
per week.
Do not use a brick or griddle stone for cleaning.
Do not use chlorine sanitizer in contact with griddle. Contact can cause discoloration, corrosion and
permanent damage.
Do not use cleaning agents including Sodium Hydroxide, which is common in household oven cleaners.

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ADJUSTMENTS
CALIBRATION-900RX AND MSA MODELS
1. Each thermostat controls a 12” zone of the
griddle. Using a Surface Probe temperature
measurement device, observe the temperatures
at the center points of the cooking zones.
These points are located by starting 6” from the
side splash (left or right) and every 12” across
the width of the griddle, with all points located
12” back from the front edge of the griddle
plate.
NOTE: Use of infrared thermometers is not
recommended. These devices are highly
sensitive to surface color (clean or dirty), angle
of reading and distance from the unit.
2. Set thermostats to 350°F and allow to stabilize,
allowing the burner to cycle ON and OFF at
least two times.
3. Watch for burner to cycle OFF, then measure
the temperature for that zone. The temperature
should be 350°F ±15°F. If not, continue to Step
4.
4. a. Carefully loosen the knob set
screw. DO NOT allow the knob to
turn. Carefully remove the knob
from the thermostat shaft,
exposing the temperature dial.
b. Loosen screws on the temperature
dial and adjust so that the
temperature indicated by the knob
arrow matches the griddle plate
temperature reading. Knob will
have to be placed back on the
shaft to verify adjustment.
IMPORTANT: NEVER ADJUST THE
SCREW IN THE CENTER OF THE
THERMOSTAT SHAFT. This will ruin the
factory calibration; the thermostat will no
longer operate properly and will need to
be replaced.
5. Once calibration is achieved, tighten the
temperature dial screws and knob set
screws.
Step 4a. Set knob &
check Temperature.
Remove knob
Step 4b. –Adjust
temperature dial &
verify temperature
setting
Step 5 –Replace
knob & tighten
screws

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LEVELING
The griddle must be level (side-to-side and front-to-back) during operation to ensure
proper performance. Improper leveling can result in uneven temperature distribution, cold
spots, and possibly damage electrical components.
1. Place a level on the griddle.
2. Adjust legs by turning the bullet feet at the bottom of each leg. Using pliers or a
crescent wrench, turn the feet counter-clockwise to increase height, and clockwise to
decrease height until leveling is achieved. Do not extend the legs more than 1-¾”.
PILOT ADJUSTMENT
Using a flathead screwdriver, turn the slotted hex-head pilot adjustment screw clockwise
to decrease the flame, and counterclockwise to increase the flame. See Fig. 14.
SHUTDOWN OF GRIDDLE WITH ELECTRIC IGNITION SYSTEM –900RX MODELS
1. Turn thermostats to the OFF position to cut off burners or turn griddle shut-off valve to
the OFF position.
2. Turning the griddle shut-off valve to the OFF position will turn the gas off to all
thermostats and pilots. The pilots will have to be relit when restarting the griddle.
3. The pilots will remain lit and monitored by the safety valve as long as the griddle shut-
off valve is left in the ON position.
Fig. 14
pilot adjustment screw

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SHUTDOWN OF GRIDDLE –MSA AND ASA MODELS
1. Turn thermostats to the OFF position to cut off burners.
2. The pilots will remain lit and monitored by the safety valve as long as the main gas
supply is on.
SHUTDOWN OF GRIDDLE WITH STANDING PILOT SYSTEM –AGM MODELS
1. Turn burner control knobs to the OFF position to cut off burners.
2. The pilots will remain lit as long as the main gas supply is on.
EXTENDED SHUTDOWN –ALL MODELS
1. Turn the griddle shut-off valve and/or the main gas supply valve to the OFF position.
2. Unplug the griddle electrical supply cord (if applicable).
3. Apply a heavy coat of vegetable oil over the griddle plate to inhibit rust.