Frymaster FBCR18, FBKR18 Series manual Temperature Probe

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solenoid valve when the water level reaches the upper water level sensor and to de-energize the solenoid when the water level drops below the upper water level sensor.

The board has four LEDs to assist in troubleshooting. Three of the LEDs (LATCH, WATER, and HEAT) are located just to the right of the heat relay (K4). The fourth LED is not labeled. It is located in the lower left portion of the board, just above a large orange resistor. When the latch, water, and heat LEDs are illuminated, they indicate that the associated relay is closed. The unlabeled LED indicates that 24VAC is being supplied to the interface board by the transformer.

TEMPERATURE PROBE

A temperature probe is located on the front centerline of the cookpot. The probe is a type of thermostat in which the resistance varies directly with the temperature. That is, as the temperature rises, so does resistance, at a rate of approximately 2 ohms for every 1° of rise or fall. Circuitry in the computer monitors the probe resistance and controls burner firing when the resistance exceeds or falls below a programmed temperature (setpoint). The temperature is programmed by means of number buttons on the face of the computer.

WATER LEVEL SENSORS

Two water level sensors are arranged one above the other on the left front of the cookpot. When water contacts the sensors they are grounded. The lower sensor acts as a safety device to keep the burner from firing when there is no water in the cookpot. When the sensor is grounded by contact with water, a transistor on the interface board is biased and the blower relay (K5) pulls in, supplying power to the blower and to the gas valve via the ignition modules. Grounding the upper water level sensor causes another transistor on the interface board to bias and pull in the water relay (K6) which closes the water solenoid valve, cutting off water flow into the cookpot.

6.2Accessing the Rethermalizer for Servicing

DANGER

Water heated to cooking/rethermalizing temperature will cause severe burns. Never attempt to move this appliance when filled with heated water or to transfer heated water from one container to another.

DANGER

This equipment should be unplugged when servicing, except when electrical circuit tests are required. Use extreme care when performing such tests.

This appliance may have more than one electrical power supply connection point. Disconnect all power cords before servicing.

Inspection, testing, and repair of electrical components should be performed by an authorized service agent only.

1.Shut off the gas supply to the unit. Unplug the electrical power cord. Disconnect the unit from the gas supply.

2.Remove any attached restraining devices.

6-3

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Contents Hour Service Hotline Canada Page FBCR18 & FBKR18 Series GAS Rethermalizers Table of Contents Operator Troubleshooting Parts Ordering and Service Information Applicability and ValiditySafety Information Installation, Operating, and Service PersonnelEquipment Description Shipping Damage Claim Procedure DefinitionsWhat to do if your equipment arrives damaged General Installation Requirements National Code Requirements Caster/Leg Installation Incoming Gas Pressures GAS Connections and Pipe Sizes Converting to Another Gas Type FBCR18 Series Computer FBCR18 Series ComputerProgramming the FBCR18 Series Computer FBKR18 Series Computer Programming the FBKR18 Series Computer Page Operating the FBKR18 Series Rethermalizer FBKR18 Computer Display Messages Honeywell Shutting the Rethermalizer Down Daily Checks and Services Inspect Rethermalizer and Accessories for DamageQuarterly Checks and Services Semi-Annual Checks and ServicesCheck Burner Manifold Pressure Burner Manifold Gas Pressures Page Troubleshooting Guides Water not HEATING. Autofill Worked Properly Burners do Not Light Problem is beyond scope of operator troubleshooting Replacing the Computer or Computer Wiring Harness Functional Description Computers Temperature Probe Cleaning the Gas Valve Vent Tube Checking the Burner Manifold Gas PressureMeasuring Flame Current Replacing the Temperature Probe Replacing the Interface BoardReplacing an Ignitor Assembly Replacing an Ignition ModuleReplacing the Combustion Air Blower Replacing the Gas ValveReplacing a Burner Assembly Troubleshooting and Problem Isolation Replacing the CookpotIgnition Failures Incoming Gas Pressures Improper Burner FunctioningPage Improper Temperature Control Computer-Related ProblemsTroubleshooting the Gas Valve Troubleshooting the 24 VAC Circuit 24VAC Circuit Troubleshooting the Temperature Probe Probe Resistance Chart Simplified Wiring Diagrams FBKR18 onlyInterface Board Computer FBCR18 & FBKR18 Series GAS Rethermalizers Parts List Burner System ComponentsCabinetry and Associated Components Side, Cabinet, CRS for S/S units, useComputer, Component Box Assembly, and Associated Parts Cookpot and Associated Parts Gas Supply Components Plumbing Components Nipple, Close, 1 NPTService Hotline

FBKR18 Series, FBCR18 specifications

The Frymaster FBKR18 and FBCR18 series are among the industry’s leading commercial fryers, designed to meet the rigorous demands of high-volume food service operations. These advanced fryers are built to provide exceptional frying performance, energy efficiency, and ease of use, making them ideal for restaurants, cafeterias, and catering operations.

One of the standout features of the Frymaster FBKR18 and FBCR18 series is their innovative cooking technology. These fryers incorporate the patented Frymaster oil management system, which helps to improve oil life while ensuring consistent food quality. The system includes an advanced filtration mechanism that can be operated manually or automatically, allowing for quick and efficient oil changes while minimizing downtime.

Another key characteristic of the FBKR18 and FBCR18 series is their impressive capacity. With the ability to hold up to 18 pounds of oil, these fryers can accommodate large batches of food, making them perfect for busy kitchens. The fryers come equipped with dual fry pots, allowing operators to prepare multiple menu items simultaneously without flavor transfer.

Energy efficiency is also a critical aspect of the Frymaster FBKR18 and FBCR18 series. These fryers utilize a high-efficiency burner design that reduces energy consumption while still delivering sufficient cooking power. This feature not only helps to lower utility costs but also contributes to a more environmentally friendly operation.

The design of the FBKR18 and FBCR18 series is focused on ease of use and safety. The fryers feature a user-friendly digital control panel that allows operators to easily monitor and adjust cooking temperatures. Additionally, the fryers are equipped with built-in safety features, such as automatic shut-off mechanisms, ensuring safe operation even in high-demand situations.

Durability is another hallmark of these fryers. Constructed from high-quality stainless steel, the FBKR18 and FBCR18 series are built to withstand the rigors of daily use in commercial kitchens. Their robust design not only ensures longevity but also simplifies cleaning and maintenance.

In summary, the Frymaster FBKR18 and FBCR18 series fryers combine advanced cooking technology, impressive capacity, energy efficiency, and user-friendly design to meet the needs of busy food service operations. With their durability and high performance, these fryers stand out as excellent choices for chefs aiming to achieve culinary excellence.
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