Introduction
This manual provides essential information for the safe and efficient operation, maintenance, and troubleshooting of your WILPREP Commercial Gas Floor Fryer. Please read this manual thoroughly before installation and use. Proper adherence to these instructions will ensure optimal performance and longevity of your appliance.
Important Safety Information
Your safety and the safety of others are paramount. Always follow basic safety precautions when using this appliance.
- Read all instructions completely before operating the fryer.
- This appliance must be installed by a qualified and licensed professional in accordance with all local codes and regulations.
- Ensure adequate ventilation in the area where the fryer is installed and operated.
- Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
- Keep children and unauthorized personnel away from the appliance during operation and when hot.
- Always disconnect power and gas supply before cleaning, servicing, or performing any maintenance.
- Hot oil can cause severe burns. Exercise extreme caution when handling hot oil or operating the fryer.
- The appliance features an automatic gas supply cut-off at 450°F (232°C) to prevent overheating and ensure safe operation.
Setup and Installation
Unpacking
Carefully remove the fryer from its packaging. Inspect the unit for any signs of shipping damage. Retain all packaging materials for future transport or if the unit needs to be returned.
Placement
Position the fryer on a level, stable, and non-combustible surface. Ensure there is sufficient clearance from walls and other equipment as specified by local fire and safety codes. Adequate ventilation is crucial for safe operation.

Image: The WILPREP Commercial Gas Floor Fryer, showcasing its stainless steel construction and two fry baskets filled with french fries. This image illustrates the overall appearance and primary function of the unit.
Gas Connection
Gas connection must be performed exclusively by a licensed gas technician. Ensure the correct gas type (Natural Gas) and pressure are supplied to the unit. Refer to local codes and the appliance's data plate for specific requirements.
Adjustable Legs
The fryer is equipped with four adjustable feet, allowing you to customize the working height from 6 inches to 7-1/2 inches. This feature ensures optimal stability and facilitates easy cleaning underneath the unit.

Image: A detailed view of the adjustable legs on the WILPREP Commercial Gas Floor Fryer, demonstrating how the height can be modified for stability and cleaning access.
Oil Filling
Before initial operation and after each oil change, ensure the fry pot is filled with cooking oil to the indicated "MIN" and "MAX" fill lines. Do not overfill or underfill, as this can affect performance and safety.
Operating Instructions
Controls and Temperature Adjustment
The fryer features a millivolt control thermostat, enabling precise temperature adjustment from 200°F (93°C) to 400°F (204°C). For safety, the unit automatically cuts off the gas supply if the oil temperature reaches 450°F (232°C).

Image: A close-up of the temperature control dial, showing settings from 200°F to 400°F and indicating the automatic shutoff feature at 450°F.
Ignition Procedure
- Ensure the main gas supply valve to the fryer is open.
- Turn the thermostat dial to the desired operating temperature.
- Follow the specific ignition instructions provided on the appliance's control panel or inside the access door. (Note: Ignition steps may vary slightly by specific model; always refer to the label on your appliance).
Using Fry Baskets
The fryer includes two 1.5 lb. detachable fry baskets, each equipped with coated handles for heat protection and comfortable handling. The baskets are designed with two hanging heights, allowing for convenient draining of excess oil after frying.

Image: Illustration of the two 1.5 lb. fry baskets in use, demonstrating their capacity and the hanging feature for draining excess oil.
Maintenance and Cleaning
Daily Cleaning
After each use, allow the cooking oil to cool completely. Remove the fry baskets and clean them thoroughly with warm, soapy water. Wipe down the exterior surfaces of the fryer with a damp cloth to remove grease and food residue.
Oil Draining
The built-in full port drain valve simplifies the process of draining used oil. Place a suitable, heat-resistant container under the drain valve and open it to empty the fry pot. Ensure the oil is cool before draining.

Image: An internal view of the fryer, highlighting the oil drain valve and its extension for easy and efficient oil removal.
General Cleaning
The fryer's robust stainless steel construction is designed for durability and ease of cleaning. Use non-abrasive cleaners and soft cloths to maintain its polished finish. Avoid harsh chemicals or abrasive pads that could scratch the surface.
Troubleshooting
This section provides solutions to common issues you might encounter. For problems not listed here, or if solutions do not resolve the issue, contact a qualified service technician.
| Problem | Possible Cause | Solution |
|---|---|---|
| Fryer not heating | No gas supply; Pilot light out; Thermostat setting too low. | Check main gas connection; Relight pilot light according to instructions; Adjust thermostat to desired temperature. |
| Oil not reaching desired temperature | Thermostat malfunction; Insufficient heat input from burners; Dirty burners. | Contact a qualified technician for thermostat inspection; Ensure burners are clean and operating correctly. |
| Excessive smoke from oil | Old or contaminated oil; Oil level too low; Food debris in oil. | Replace old oil with fresh oil; Add oil to the proper fill level; Filter or clean oil regularly. |
| Gas odor detected | Gas leak. | Immediately shut off the main gas supply to the appliance and ventilate the area. Do not operate the fryer. Contact a qualified gas technician immediately. |
Specifications
Key technical specifications for the WILPREP Commercial Gas Floor Fryer, Model NGCGF90.
| Feature | Detail |
|---|---|
| Model Name | NGCGF90 |
| Brand | Wilprep |
| Material | Stainless Steel |
| Color | Silver |
| Product Dimensions (D x W x H) | 30"D x 15.6"W x 45.7"H |
| Item Weight | 134.5 Pounds |
| Oil Capacity | 40 Pounds |
| Burners | 3 |
| Total BTU | 90,000 BTU |
| Temperature Range | 200-400°F (Auto shutoff at 450°F) |
| Fry Basket Capacity (each) | 1.5 lb. |

Image: A visual representation of the fryer's dimensions (15.6" W x 30" D x 45.7" H) and key specifications, including fry basket capacity and fry pot capacity.
Warranty and Support
For any questions, technical assistance, or warranty claims regarding your WILPREP Commercial Gas Floor Fryer, please contact Wilprep customer support. Refer to your purchase documentation for specific warranty terms and contact information.
You can also visit the official Wilprep store on Amazon for more information and support: Wilprep Store



