VOLLRATH 948GGM Medium and Heavy Duty Gas Flat Top Griddles Instruction Manual
- June 1, 2024
- VOLLRATH
Table of Contents
- Safety Precautions
- Function and Purpose
- Clearance and Environment Requirements
- Installation
- Applicable Codes and Standards United States
- Install and Level the Legs
- Features and Controls, must be provided with hoods that are designed to capture grease and provide fire protection.
- Equipment must be installed in accordance with the requirements and approval of the AHJ “Authority Having Jurisdiction.”
NOTICE: Post instructions to be followed in the event the user smells gas. Consult your local gas supplier for these instructions and post in a prominent location.
NOTICE: The installation of this equipment must conform with local codes, or in the absence of local codes, with the National Fuel Gas Code, International Fuel Gas Code, ANSI Z223.1/ NFPA 54, or the Natural Gas and Propane Installation Code, CSA B149.1, as applicable.
Install and Level the Legs
Ensure that the equipment is level in all directions. Begin by tightening each leg securely. Then, as needed at each corner, rotate the adjustable foot.
Gas Piping
- Gas piping must be sized to ensure sufficient pressure and flow to meet the full-rated gas input of the equipment.
- Connection to an existing system requires that the existing system have excess capacity equal to or greater than the full-rated gas input of the equipment.
- Joint compound (pipe dope) should be used sparingly and only on the male threads of the pipe joints. Such compounds must be resistant to the action of liquid propane (LP) gases.
Pressure Regulator
NOTICE: All commercial cooking equipment must have a pressure regulator on the incoming service line for safe and efficient operation.
NOTICE: Prior to connecting the regulator, check the incoming line pressure. The regulator can only withstand a maximum pressure of ¹⁄₂ PSI (14″ WC). If the line pressure is beyond this limit, a step-down regulator before the regulator provided will be required.
NOTICE: The appliance and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psi (3.5 kPa).
NOTICE: The appliance must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to less than 1/2 psi (3.5 kPa).
- The arrow forged into the bottom of the regulator body shows gas flow direction, and should point downstream to the equipment.
- The regulator provided with this equipment is configured for use with natural gas. Following the instructions in the LP Conversion Kit, it can be reconfigured for use with LP gas.
- The equipment comes fitted with a ¾” N.P.T male adapter for connection to the pressure regulator.
- Check the pressure of the incoming gas line. The regulator can withstand a maximum pressure of 14″ WC (¹⁄₂ PSI). If the line pressure is beyond this limit, a step-down regulator will be required.
Regulator Connection
- A To gas supply with the installation of B, C and D in a vertical orientation as shown to provide for debris capture.
- B Tee
- C Nipple (any length)
- D Cap
- E Supplied Regulator
- F Vent
Orifice Sizing
NOTICE: Refer to the International Fuel Gas Code for proper orifice sizing.
- Installer is responsible for correct orifice sizing.
- The orifice size is marked on the orifice/spud.
- Equipment is manufactured for 1035 BTU per cubic foot heat value of natural gas.
Gas Conversion
- Conversion from natural gas to liquid propane (LP) or vice versa must be performed by a qualified technician or service agent per the International Fuel Gas Code.
- Refer to the conversion kit instructions included with this equipment.
Manual Shut-Off Valve
A manual shut off valve should be installed in an accessible location within 6 ft. (1.8 m) of the equipment.
Test the Equipment
Check for Gas Leaks
NOTICE: Matches, candle flame, or any other potential source of ignition shall not be used for this purpose.
- Rotate the gas control knobs for the main burner(s) to the OFF position.
- Remove the gas control knob(s).
- Use a flathead screwdriver to remove the screws on the front panel. Remove the front panel to access the pilot burner control valve(s).
- Locate the pilot burner control valves for each pilot light and turn it OFF by turning the small forward-facing screw clockwise until tight.
- Connect the equipment to the gas supply.
- Apply soapy water to each connection.
- Turn ON the main supply valve.
- Look for bubbles at the connections.
- Adjust the connections as needed.
Light the Pilot Burners
- Wait 5 minutes to allow any gas to dissipate.
- To light the pilot burners, hold a flame source over the desired pilot burner while slowly turning its control valve screw counterclockwise, adjusting the flame to the desired intensity. Repeat for all pilot burners.
Test the Main Burners
After lighting all of the pilot burners, ensure that each main burner functions correctly.
Features and Controls
A Griddle Plate. Cooking surface.
B Leg. Supports the equipment.
C Adjustable Foot. Used to adjust the level of the equipment.
D Drip Tray. Collects grease and oil. This tray can be removed for
cleaning.
E Pilot Light Access Hole. Allows access to the pilot light.
F Gas Control Knob. Used to adjust the temperature of the grilling
surface.
G Knob Guard. Helps protect the control knob from damage (Heavy-Duty
only).
Before First Use
Burn In the Equipment
- Rotate the gas control knob(s) to the maximum setting.
- Allow griddle to heat and burn-in for approximately 30-minutes.
NOTICE : You may notice smoking during this initial burn-in; this is normal.
Season the Griddle Surface
- While the griddle is warm, rub cooking oil, shortening, beef suet, or the like on the griddle surface with a clean cloth.
- Heat the griddle to medium high and allow it to operate for approximately 30 minutes.
- Rotate the gas control knob(s) to low and allow the surface to cool.
- Remove any excess oil and wipe clean.
- Repeat the process; oil, heat for 30 minutes, cool, and wipe clean.
Operation
**** | WARNING |
---|
Fire, Death Hazard
If you smell gas follow the instructions provided by the gas supplier.
Do not touch any electrical switches; do not try to light the burner; do not
use a telephone within close proximity.
**** | CAUTION |
---|
Burn Hazard
Hot liquids and steam can burn skin. Never pour any liquid other than oil to
be used for cooking onto hot surfaces.
**** | CAUTION |
---|
Burn Hazard
Ensure that the cooking surface has cooled down before touching by hand.
- Verify that the drip tray is in place.
- Lightly oil and wipe the surface clean to remove any contaminants that may have accumulated or have seeped from the surface and/or perimeter since last use and to ensure a clean non-stick cooking surface.
- Ignite the main burner(s) by rotating the gas control knob(s). Adjust to the desired heat level.
- Preheat the griddle for 15 minutes.
- Cook the food.
- Empty the drip tray periodically to ensure that it does not overflow.
- Do not allow oil or grease to build up on the griddle. Doing so can lead to carbon build-up, which can adversely affect the performance of the griddle.
- Allow the griddle to cool at the end of each cooking cycle.
Cleaning
**** | CAUTION |
---|
Burn Hazard
Hot surfaces and food can burn skin. Allow the hot surfaces to cool before
handling. Do not drop or spill water onto the cooking surface as it can spray
or splatter.
To maintain the appearance and increase the service life, clean your equipment daily.
NOTICE: Do not clean the equipment with steel wool.
NOTICE: Do not use cleaning chemicals or soaps as these can be absorbed by the surface and/or seep into the perimeter of the griddle and affect the flavor of the food. If necessary, use only clean water, oil, and/or a food grade degreaser for the cleaning process.
NOTICE: To prevent corrosion, do not allow the griddle surface to remain unseasoned or without a thin coating of cooking oil.
Daily
- While the griddle is still warm, use grill brush or grill brick to remove burnt on food and grease.
- Remove, empty and clean the drip tray.
- Clean the exterior of the equipment.
- Turn off the griddle and allow it to cool.
- Apply a thin coating of cooking oil to prevent corrosion.
Weekly
- Perform the daily cleaning process. Do not apply oil to the griddle.
- Allow the griddle to cool completely.
- Thoroughly clean the griddle plate with a food-grade degreaser.
- Season the griddle. See Season the Griddle Surface under the BEFORE FIRST USE section.
Preventative Maintenance
**** | WARNING |
---|
Fire, Injury, Death Hazard
Contact a qualified technician or service agent for any adjustments,
maintenance or repairs. This appliance is not user serviceable.
A qualified service company should check the unit for safe and efficient operation on an annual basis. Contact the factory representative or local service company to perform maintenance and repairs.
Troubleshooting
Problem | Might be Caused By | Course of Action |
---|---|---|
Smell gas. | Unknown cause. | Turn off the main supply valve, vent the area, |
call a qualified service agent.
Burner does not light.| Pilot burner not lit.| Wait 5 minutes to allow gas to
dissipate, then light the pilot burner.
Cooking surface smokes excessively.| Cooking surface not cleaned.| Allow the
cooking surface to cool down and clean while still warm; then season the top.
Cooking surface is too hot.| Insufficient ventilation.| Ensure a minimum of 6″
of space is allowed on all sides of the equipment.
Uneven cooking surface top heating.| Insufficient ventilation.| Ensure a
minimum of 6″ of space is allowed on all sides of the equipment.
Burner not operating properly.| Orifice contaminated.| Contact an authorized
service agent to service the burner.
Service and Repair
Serviceable parts are available on Vollrath.com.
To avoid serious injury or damage, never attempt to repair the unit yourself. Either contact a qualified service agent for the repair or contact Vollrath Technical Services for instructions. The appropriate phone number is listed at the bottom of the page.
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.
This warranty does not apply to products purchased for personal, family or household use, and The Vollrath Company LLC does not offer 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.
For complete warranty information, product registration and new product announcement, visit www.vollrath.com.
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: 800.628.0830
Canada Customer Service: 800.695.8560
Technical Services
techservicereps@vollrathco.com
Induction Products: 800.825.6036
Countertop Warming Products: 800.354.1970
All Other Products: 800.628.0832
© 2018 The Vollrath Company L.L.C. Part No. 2350101-1 ml 6/28/18
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