Lincoln 1100ADVSVC, 1117-000-A service manual Control BOX Auto Cool Down, Heater Circuit

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SEQUENCE OF OPERATIONS

 

1130-000-A / 208V / SINGLE PHASE

 

1131-000-A / 240V / SINGLE PHASE

 

1132-000-A / 208V / THREE PHASE

 

1133-000-A / 240V / THREE PHASE

POWER SUPPLY

Electrical power to be supplied to the oven by a three-conductor service on single

 

phase and a four-conductor service on three phase.

 

Black conductor is Hot

 

Red conductor is Hot

 

Orange conductor is Hot (Used on 3 phase only)

 

Green conductor is ground.

CONTROL BOX AUTO COOL DOWN

When the temperature in the control box reaches 120°F ± 3°F (48.9°F ± 1.7°C),

 

the cooling fan thermostat will switch power to the cooling fans. The thermostat

 

will interrupt power to the fans when the temperature falls to 100°F ± 3°F (37°C ±

 

1.7°C).

MAIN FAN CIRCUIT

Power is permanently supplied through the 10A fuses, through the normally

 

closed control box high limit thermostat, to the normally open main fan switch.

 

Power is also supplied to the normally open cooling fan thermostat. Closing the

 

main fan switch supplies 208/240 VAC to the main fan motor, the cooling fan

 

motor, to the primary of the temperature display transformer and to the heat and

 

conveyor circuits.

HEATER CIRCUIT

Closing the fan switch supplies 208/240 VAC, through the normally open air

 

pressure switch (closed by air pressure from the main fan) through the normally

 

closed oven cavity hi-limit thermostat, to the electronic temperature control. The

 

1K ohm temperature pot is adjusted to desired temperature. The thermocouple

 

will provide varying millivolts to the temperature controller. The temperature

 

control then supplies 208/240 VAC to the coil of the contactor at intermittent

 

intervals to maintain the desired temperature. The heat lamp is energized with

 

the contactor.

CONVEYOR DRIVE

Closing the on/off switch supplies 120 VAC to the motor control board. AC volts

 

are converted to DC volts and are supplied to the conveyor motor at terminals A+

 

and A-.

 

Adjustment of the speed control potentiometer will change resistance at terminals

 

P1 and P2 varying the DC voltage to the motor. The speed of the conveyor

 

motor will increase or decrease as the DC voltage from the board increases or

 

decreases respectively.

NOTE:

The conveyor control uses a sensor and magnet, mounted on the conveyor

 

motor that senses the motor speed. Any change in motor load (±RPM) is

 

detected by the sensor and the voltage to the motor is adjusted accordingly.

Temperature Display

Closing the switch supplies 120 VAC to the primary of the temperature display

 

transformer. The secondary of this transformer supplies 12 VAC to the

 

temperature display. The thermocouple supplies D.C. millivolts to the

 

temperature display. The display converts this millivolt reading to a temperature

 

reading.

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Impinger II – Advantage Service Manual - Domestic

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Contents Impinger Conveyor Ovens Table of Contents Sequence of Operations Impinger II AdvantageControl BOX Auto Cool Down Heater CircuitSchematic 1116-000-A, 1117-000-A Schematic 1130-000-A / 1131-000-A Schematic 1132-000-A / 1133-000-A Troubleshooting Guide / GAS Ovens PhaseNatural GAS LP GASPage With Power on and Thermocouple Leads Attached to the Temperature ControlPage Page Troubleshooting Guide / Electric Ovens Single PhaseThree Phase Refer to Proper Schematic for Identified ComponentsWith Power on and Thermocouple Leads Attached to the TemperaturePage Page REMOVAL, INSTALLATION, and Adjustment ON/OFF Switch ReplacementMOTOR, Main FAN FAN, MainFuse Holder Replacement THERMOSTAT, Control BOX HI-LIMIT ReplacementBurner Blower Motor Replacement High Limit Thermostat ReplacementBurner Transformer Replacement Thermocouple ReplacementThermocouple Measurement Chart InformationElectronic Temperature Control Board Replacement Electronic Temperature Control Board CalibrationTemperature Control Potentiometer Replacement Heat Light ReplacementTemperature Regulation Valve Replacement HOT Surface Ignitor ReplacementMain Burner Orifice Replacement Conveyor Control Potentiometer ReplacementConveyor Control Board Replacement Conveyor Drive Motor ReplacementConveyor Control Board Calibration Circuit BreakerHall Effect Sensor Replacement Temperature Display Transformer ReplacementTemperature Display Replacement Calibration of Temperature DisplayHeating Element Replacement BEARING, ConveyorThis page intentionally left blank Parts / General Letter Part Number DescriptionBlow UP / General Parts / Control BOX 1116-000-A, 1117-000-A Blow UP / Control BOX 1116-000-A, 1117-000-A Parts / Control BOX 1130-000-A Thru 1133-000-A Blow UP / Control BOX 1130-000-A Thru 1133-000-A Parts / Conveyor & Door Blow UP / Conveyor & Door Parts / Oven Back Assembly Blow UP / Oven Back Assembly
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