Frymaster H50 manual Functional Description, Electronic Ignition System

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PRO H50/55-SERIES GAS FRYERS

CHAPTER 1: SERVICE PROCEDURES

1.1Functional Description

Pro (H50/55) Series gas fryers contain a welded stainless steel frypot that is directly heated by a high efficiency infrared burner system requiring approximately 43% less energy than conventional burners to cook the same volume.

Self-contained combustion chambers (referred to as “burners”) are fitted into rails attached to the sides of the frypot, one on each side. Each combustion chamber is fitted with special ceramic tiles that are heated by burning a forced air/gas mixture. The tiles transfer heat to the frypot by means of infrared radiation, providing much more constant and uniform heat dispersion over the surface of the frypot than conventional burners. Because less heat is lost to the atmosphere in the process, compared to “open-burner” designs, less fuel is required to achieve and maintain temperature.

In full-vat units, gas flow to both of the burners is regulated by one electromechanical gas valve. In dual-vat units, each burner has its own valve. All fryers in this series are equipped with 24 VAC gas valve systems and electronic ignition.

1.1.1 Electronic Ignition System

An ignition module mounted in the component box (located behind the control panel) is connected to an ignitor assembly at the burner. The ignition module performs four important functions: it provides fuse protection for the 24-volt circuit, provides an ignition spark, supplies voltage to the gas valve, and proofs the burner flame. The module contains a 4-second time delay circuit and a coil that activates the gas valve. Three types are in use. A closed-box design is used in most fryers, but in some fryers built for export, the module resembles an interface board. A single dual-spark module is used on current production full-vat fryers. All dual-vat fryers use two single-spark modules.

The ignitor assembly consists of a spark plug, an enrichment tube, and a flame sensor.

Inside the Ignition Module

Out to

Gas Valve

To Alarm

25 V +

Coil

TD

HV

GND

Ignition Wire

Flame Sensor

At start-up, the power switch is placed in the ON position, supplying approximately 12-volts DC to the heat-control circuitry in the controller or computer and to one side of the heat relay coils on the interface board. If resistance in the temperature probe indicates the temperature in the frypot is below 180ºF (82ºC), the current flows through a melt cycle circuit where a timer switch alternately closes for 6 seconds and opens for 24 seconds. If the temperature is 180ºF (82ºC) or above, the current flows through a heat circuit, bypassing the timer switch. In either case, ground is supplied to the other leg of the heat relay coils, which then close electronic switches in the 24 VAC circuit to provide current to the ignition module. Circuitry in the ignition module sends 24 VAC to the gas

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Contents 8196083 Hour Service HotlineCanada Page PRO H50/55-SERIES GAS Fryers Table of Contents Parts List This page Intentionally Left Blank Electronic Ignition System Functional DescriptionInterface Board LED Diagnostic LightsInterface Board Frequently Used Test Points for Interface Board Checking the Burner Manifold Gas Pressure Cleaning the Gas Valve Vent TubeNon-CE Standard Burner Manifold Gas Pressures Measuring Flame Current Replacing the Temperature Probe or High-Limit Thermostat Replacing an Ignition Module Replacing the Interface BoardReplacing or Cleaning a Combustion Air Blower Blower Housing Blower Wheel Adjusting the Air/Gas Mixture Page ALL Other Valves Page Replacing the Frypot Page Page Page Disassembling a Frypot Full-vat Illustrated Page Page Re-assembling a Frypot Full-vat Illustrated Ignition Failure Troubleshooting and Problem IsolationImproper Burner Function Problems Related to the GAS ValvePage Computer Malfunctions Improper Temperature ControlFiltration Malfunctions Pump Leakage Verifying Solenoid OperationBasket Lift Malfunctions Binds and Jams Interpretation of Analog Controller Lights Troubleshooting Guides Troubleshooting the 24 VAC CircuitPage Volt Circuit Left VAT Right VAT Troubleshooting the Temperature Probe Troubleshooting the Gas ValveProbe Resistance Chart Probe Resistance ChartModule Wiring Diagram for Full-Vat Simplified Wiring DiagramsAustrailia WiringDiagram FullSingle-Spark VatLeft VAT Right or Full VAT Principal Wiring ConnectionsWiring Diagrams Full VAT Pro H50/55-Series FryerFAST-Ready Constant Pilot Extracted from 8051377B Fpph 250/255/450/455 Transformer/Filter Box Fpph 350/355 Transformer/Filter Box Transformer/Filter Box for use with Fast Controllers Modular Basket Lift 100/120V Right Side Modular Basket Lift 208/250VPage PRO H50/55-SERIES GAS Fryers Parts List Basket Lift Assemblies Component Cabinetry Backs, Doors, Flue Caps, Sides, and Top Caps Component See Page 2-4 for upper hinges Component 2-inch Hex Washer Manifold, Rear not present in single fryers Full-vatNon-CE Export not available for CE Units ControllersPage Ringtwo required Drain Valves and Associated Components Component Oil Return Line Components Component Oil Return Handle, Oil Disposal and Disposal Hose Components 810-0783 Cotter Pin 19 810-0285 Swivel, Valve Control Assembly Wand Plumbing Japan Oil Disposal Wand AssemblyNut furnished With Item Rear Flush Oil Return ComponentsElbow, 90º x ½-inch Street Power Shower Assembly, Dual-vat, Complete Power Shower Assemblies OptionalComponent Boxes Electronics and Electrical ComponentsCable, 21-inch Ignition comes with Rajah connector Item Transformer Nut, 8-32 Keps Hex High-Limit Thermostat and Temperature Probe Food Warmer Heat Lamp for element only, use Food Warmer ComponentsPage Screw, #10 X 1/2-inch Hex Washer Head 410 SS Dual-Vat Frypot Components For rear flush oil return components, see PH250/255 Full Vat Gas Manifold Typical Gas Supply and Combustion System ComponentsCE Conversion Kits Gas Valves and Associated Components Gas Valve Wiring Wiring Assemblies and Harnesses Main Wiring Harnesses Transformer Box Cable Assemblies Component Miscellaneous Connectors and Terminals This page Intentionally Left Blank Service Hotline
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H50 specifications

The Frymaster H50 is a state-of-the-art commercial deep fryer designed for efficiency and reliability in fast-paced kitchen environments. Known for its advanced technology and user-friendly features, the H50 is an ideal solution for restaurants, cafeterias, and food service operations looking to enhance their frying capabilities.

One of the standout features of the Frymaster H50 is its innovative oil management system. This system helps maintain optimal oil quality and reduces the frequency of oil replacement, which not only saves costs but also contributes to improved food flavor. The unit is equipped with a built-in filtration system that can clean the oil while the fryer is in use, significantly extending the life of the frying oil and ensuring consistent frying results.

The Frymaster H50 is also designed with advanced temperature control technology. This ensures precise temperature settings, allowing operators to achieve the perfect fry every time. The fryer features a digital control panel that makes it easy to set and monitor frying temperatures, giving chefs the flexibility to prepare a wide variety of fried foods, from crispy french fries to delicate fish fillets.

In terms of performance, the Frymaster H50 boasts a high production capacity, making it capable of handling large volumes of food. This is especially beneficial during peak service hours when demand is at its highest. The fryer can heat up quickly, providing rapid recovery times that keep up with busy kitchen demands.

Durability and ease of maintenance are also key characteristics of the Frymaster H50. Constructed with high-quality materials, this fryer is built to withstand the rigors of heavy usage in commercial settings. The removable fry pots offer easy access for cleaning and maintenance, ensuring that the fryer stays in optimal working condition with minimal downtime.

Another important aspect of the Frymaster H50 is its energy efficiency. The fryer is designed to consume less energy while still delivering superior frying results, which is an essential factor for businesses looking to reduce their operational costs.

Overall, the Frymaster H50 combines innovative technology with user-friendly features to deliver a high-performing commercial frying solution. Its advanced oil management system, precise temperature control, and durable construction make it an excellent choice for any food service operation looking to elevate their frying capabilities.
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