Frymaster Super Marathon Series, Super Runner Series manual Improper Burner Functioning

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1.8.2 Improper Burner Functioning

Fluctuating flame intensity is normally caused by improper or fluctuating incoming gas pressure, but may also be the result of variations in the kitchen atmosphere. Variation in the kitchen atmosphere is usually caused by air conditioning and/or ventilation units starting and stopping. Changes in airflow patterns can also affect flame intensity. If the incoming gas pressure is correct and stable, check for variations in the kitchen atmosphere.

Flames "rolling" out of the fryer are usually an indication of negative pressure in the kitchen. Air is being sucked out of the fryer enclosure and the flames are literally following the air. If negative pressure is not the cause, check for high burner-manifold gas pressure. An obstructed flue, which prevents the fryer from properly exhausting, may also be the cause.

An excessively noisy burner, especially with flames visible above the flue opening, may indicate that the burner gas pressure is too high, the gas valve vent tube is blocked, or the tube diffusers are damaged or worn out. If the gas pressure is correct, the vent tube is unobstructed, and the diffusers are in good condition, the gas valve regulator is probably defective.

Occasionally a burner may appear to be operating correctly, but the fryer has a slow recovery rate (the length of time required for the fryer to increase the oil temperature from 275ºF to 325ºF (135ºC to 163ºC). The primary causes of this are low burner manifold pressure and/or misaligned burners. If both of these causes are ruled out, the probable cause is a gas valve regulator that is out of adjustment. Refer to the Check Burner Manifold Pressure procedure in section 1.5.

1.8.3Improper Temperature Control (i.e., failure to control at set point)

Temperature control is a function of several interrelated components, each of which must operate correctly. The principle component, however, is the thermostat.

The thermostat must be checked periodically to ensure that it is in calibration. Refer to Calibrating the Operating Thermostat in section 1.4 for the procedure.

If the thermostat is properly calibrated, the probable causes are damage to the thermostat bulb, kinking of the capillary tube, and broken or loose wiring. Inspect the thermostat components for visible damage.

If there are dents in the bulb, if the capillary is kinked, or if there is obvious damage to the leads, the thermostat should be replaced.

If there is no obvious damage to the thermostat, turn off the gas valve and allow the cooking oil to cool to at least 15 degrees below the thermostat setting. Disconnect the thermostat leads from the gas valve and check for continuity. If the thermostat fails the continuity check, it must be replaced.

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Contents MAY Hour Service HotlineSuper Runner and Super Marathon Series Page Iii Table of Contents Parts List CE only Altitudes of 2000 feet or less Functional DescriptionNON-CE Altitudes of 2000 feet or less Thermostats Pilot Ignition SystemCleaning the Gas Valve Vent Tube Accessing Fryers for ServicingCalibrating the Operating Thermostat Check Burner Manifold Pressure Replacing the Operating Thermostat Adjusting the Pilot FlameReplacing Fryer Components Replacing the Operating Thermostat Replacing the Frypot Replacing the High-Limit ThermostatPilot Failures Troubleshooting and Problem IsolationAutomatic Pilot Dropout Check Complete System CheckSystem Resistance Check Pilot Fails to Light Improper Burner Functioning Filtration Problems Leaking Current Production Units with Honeywell Gas Valve Non-CE Wiring DiagramsCurrent Production Units with Honeywell Gas Valve CE Current Production Units with Robertshaw Gas Valve After May Optional UFF Filtration Wiring DiagramChannel, Base- Front & Rear Non-Filtration Single Fryers Cabinetry Components, Single FryersSide Panel, Right Suff Base Components- SM Series With Suff FiltrationSide Panel, Left Panel, Outer Door- SM20G Assembly 106-2482SP Door Assembly ComponentsAdditional Single Fryer Base Channel Components Cabinetry Components, Multi-Battery Frying SystemsBase Channel, Front & Rear- SM220G, SM50G See .1 For Fluecap, SM20/20/50G AccessoriesDean Millivolt GAS Fryers Parts List Thermostat, Sunne Use 807-1692 for CE 1 SM220 and SM20/20/~ Systems Frypot and Burner System ComponentsFlue Assembly- SM20G SR Series, SM35G, SM40G and SM50G Systems Burner, Center- SR38G, SR42G, SM35G, SM40G Burner, Right- SR38G, SR42G, SM35G, SM40GBurner, Left- SR38G, SR42G, SM35G, SM40G Shield, Burner Heat- SR52G, SM50Flue Assembly- SR38G 25 106-1742SPFlue Assembly- SR52G, SM50G106-0696SPFlue Assembly- SR42G 106-0954SPFlue Assembly- SM35G, SM40GSM80G Shown 3 SR62, SM60G and SM80G SystemsFrypot- S/S- SM60G, SR62G Use 823-3511SP for SM160G Valve, Trailing Pilot- SM60G, SM80G, SR62G adjustment valveFrypot- M/S- SM80G Prior To 10/99 obsolete use Flue Assembly- SM60G, SR62G Flue Assembly- SM80GOil Drain Manifold Componets Drain Valve Components Oil Drain Manifold, Drain Flush and Drain Valve ComponentsPlace Over Flush Oil Drain Line 2 3 Oil Drain Manifold, Drain Flush & Drain Valve ComponentsOil Return Manifold Components Fryers with 1½ Drains Oil Return Manifold Components810-0051 200-1143 809-0877 106-2568SP Not Illustrated Oil Return Manifold Components Fryers with 3 Drains Oil Return and Oil Flush Components Fryers with 1½ Drains Oil Return and Oil Flush ComponentsOil Suction Start Fitting Microswitch Bracket Assembly, Oil ReturnOil Return and Oil Flush Components Fryers with 3 Drains Suction Manifold Assembly Oil Suction Assembly1 SM50 and SM60 Series Fryers Except Ihop Under Fryer Filter UFF Components2 SM50 Series Fryers, Ihop UFF 50 with Filter Leaf 3 SM80 Series Fryers 1 SM50 Series Fryers Single Under Fryer Filter Suff Components2 SM60 and SM80 Series Fryers This page Intentionally Left Blank Service Hotline
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