Lincoln 1400, 1200, 1000 service manual Burner Circuit, Time/Temp

Page 6

 

The normally open contacts now close, energizing the Main Fan Motor through two

 

10A fuses, and the Cooling Fan. Closing the Fan Switch also supplies power to the

 

12.6 VAC Transformer, the Burner and Conveyor Switches.

TRANSFORMER (12.6

Upon closure of the Fan Switch, 120 VAC is supplied to the primary of the 12.6 VAC

VAC)

Transformer. The Transformer steps the voltage down to 12.6 VAC (normally 13 to

 

14 VAC) with a center tap, and supplies power to the Time/ Temp. Display. The

 

voltage from each leg of the Transformer's secondary to the center tap should be

 

one half of the secondary voltage.

BURNER CIRCUIT

Closing the Fan Switch and the normally open Burner Switch supplies 120 VAC

 

through the Air Pressure Switch, to the Temperature Control Board, the normally

 

open contacts of the Burner Motor Relay (Burner Motor Relay discontinued after S/N

 

14791) and the primary of the 24 VAC Transformer. The transformer's secondary

 

supplies 24 VAC to the burner motor relay coil (the normally open contacts close

 

within 30 seconds), and the normally open Centrifugal Switch. When the relay

 

contacts close, the Burner Blower Motor is energized. As this motor reaches approx.

 

1,600 R.P.M its internal centrifugal switch closes, supplying 24 VAC to the Gas

 

Control Valve. When the Gas Control Valve is supplied with 24 VAC, the pilot valve

 

is energized, and the igniter circuit is energized. Ignition should now occur. After pilot

 

flame is proven, the Main Gas Valve is energized. The Burner Indicator Light is also

 

energized.

TEMPERATURE

Closing the Fan Switch and Burner Switch supplies 120 VAC to the Temperature

CONTROL

Control Board. The 1K or 1000 ohm Temperature Potentiometer is adjusted to

 

desired temperature. The Thermocouple will provide varying millivolts to the

 

Temperature Controller. The Temperature Controller supplies 120 VAC to the

 

Solenoid Valve at intermittent intervals to maintain desired temperature.

CONVEYOR DRIVE

Closing the fan switch and the normally open conveyor Switch supplies 120 VAC to

(S/N Q14790 & Below,

the Motor Control Board. AC volts are converted to DC volts and are supplied to the

1200 series

Conveyor Motor, at terminals A+ and A-. Adjustment of the Speed Control

S/N Q14973 & Below

Potentiometer (5,000 ohm 10 turn) will change resistance at terminals P1, P2, and

1000 series)

P3 varying the DC voltage to the Conveyor Motor. The speed of the conveyor motor

 

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

(S/N Q14791 & Above,

respectively. As the motor turns, it drives both the reducer gearbox and the tach.

1200 series refer to Pg.

generator. The tach. Generator is a DC voltage generator, which supplies a voltage

5 & 6 S/N Q14974 &

to the DC motor control board and is used as a reference for maintaining a constant

Above, 1000 series refer

conveyor speed.

to Pg. 5 & 6 (STEPPER)

 

NOTE:

The 1200 Series Ovens utilize 2 complete conveyor drive systems.

TIME/TEMP

The Time/Temp. Display is energized when the Fan Switch is closed, supplying 120

DISPLAY(S/N Q14790 &

VAC to the primary of the12.6 volt Transformer. The secondary output of the

Below, 1200 series

transformer, normally 13 to 14 VAC (depending on input), with a center tap, is

S/N Q14973 & Below

supplied to terminals 1,2, and 3 of the Time/Temp. Display. The center tap is

1000 series)

terminal 2. The display works on a balanced input and center tap voltage to each leg

 

must be 1/2 the total reading.

(S/N Q14791 & Above,

The speed side of the Time/Temp. Display uses a slotted disc (cemented to tach.

1200 series refer to Pg.

coupling) to break the infrared light beam of the optical switch (mounted on gear

5 & 6 S/N Q14974 &

motor) producing electrical pulses that are transmitted to the display. The display

Above, 1000 series refer

converts these pulses into a read-out of minutes and seconds. The temperature

to Pg. 5 & 6 (STEPPER)

portion of the display uses a Thermistor Probe to sense oven temperature. The

 

thermistor outputs a resistance proportional to the oven temperature. This resistance

 

is then converted by the display into a temperature reading.

NOTE*

The 1200 Series Ovens use a Double Pole Double Throw Switch to connect the two

 

Optical Encoder Assemblies to the Time/Temp. Display. By activating the switch,

 

either the front or rear belt speed can be shown by the Time/Temp Display .

CONVEYOR DRIVE

Closing the Oven Fan Switch supplies 120 VAC, through the Power Transformer, to

 

the normally open Conveyor Switch. Closing the Conveyor Switch supplies 120 VAC,

 

through a 3 AMP Fuse, to the primary of the Conveyor Control Transformer. The

 

secondary of this Transformer supplies 10 VAC and 29 VAC to the Conveyor

 

Control. The conveyor control supplies voltage pulses to the Conveyor Control. The

 

Conveyor Control Potentiometer varies the frequency of these pulses. The motor

 

speed will increase or decrease, as the frequency of the pulses increase or decrease

 

respectively.

6

Impinger I -–1000 Series Service Manual - Domestic

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Contents Impinger Conveyor Ovens Table of Contents Model 1204 120/230 VAC 60HZ Natural GAS/DUAL Belt Power SupplyModel 1200 120/230 VAC 60HZ Natural GAS/DUAL Belt Control BOX AutoHeat Circuit TemperatureTime Temp Display ControlConveyor Drive TIME/TEMP DisplayModel 1240 120/230 VAC 60HZ Natural GAS/DUAL Belt TIME/TEMP Time Temp Display Schematic / 1000 Schematic / 1004 Schematic / 1022, 1023 S/N Q19077 & below Schematic / 1022, 1023 S/N Q19078 & Above Schematic / 1040, 1041 S/N Q14279 & below Schematic / 1040, 1041 S/N Q14280 & Above Schematic / 1200 Schematic / 1202, 1203 S/N Q14790 & below Schematic / 1202, 1203 S/N Q14791 & Above Schematic / 1204 Schematic / 1240, 1241 S/N Q14279 & below Schematic / 1240, 1241 S/N Q14280 & Above Troubleshooting Guide 1000 Symptom Possible Cause EvaluationGAS Ovens Ignition Control For ovens withJohnson Controls Honeywell IgnitionControl Mechanical Temperature ControlFlameFor ovens with ThermostatCode Troubleshooting Guide Electric Ovens Model Series 1000Page Page Page Page Page Page CAPACITOR, Motor REMOVAL, Installation & AdjustmentsMOTOR, Main FAN FAN, MainFAN Spider FAN HUB Cone Cool Down SwitchAbove GAS Above Electric RELAY, D.P.S.TTHERMOSTAT, Cooling FAN Burner Blower MotorTo Remove the Blower Wheel for Periodic Cleaning AIR Pressure SwitchBlower WHEEL, Burner Burner Assembly Manifold PRESSURE-ADJUSTMENTGAS Control Valve Temperature Control Board Manifold Pressure AdjustmentTemperature Control Valve Robert Shaw Solenoid ValveThermocouple Measurement Chart Temperature Control Potentiometer ReplacementTHERMOCOUPLE- Replacement Mercury ContactorHeating Element Ignition Control24V GND Transformer 120/24 VAC Flame SensorBurner Ignitor Burner Light 24 VAC GAS OvensMain Orifice Burner Conveyor Motor Replacement Bodine SNPilot Orifice Burner Potentiometer Conveyor Speed ControlConveyor Motor Replacement Baldor 1000 Series SN 4390 Series SN 4390Coupling and Encoder Disc Conveyor Motor Control Board Optical Encoder AssemblyTACH. Generator Motor Control Board CalibrationREG MIN MAX Motor Control Board Style 1 Control Board AdjustmentStyle 2 and Style 3 Control Board Adjustment StyleStyle DIP Switches Control Switch Position OFF BEARING, Conveyor Reversing Conveyor DirectionMini Circuit Breaker Drive ENDTRANSFORMER-STEPPER Motor Control Hall Effect Sensor ReplacementSN 2164 and Above OLD StyleOven Temperature Temperature Gauge ReplacementThermistor Replacement TRANSFORMER, TIME/TEMP. DisplaySwitch Settings ALL 1000 & 1200 Series OvensType OFF SWITCH, DISPLAY, SET Bottom of Time Temp DisplayDip Switch Switch Replacement FAN, HEAT, ConveyorSwitch Replacement FAN Switch Update GAS Valve Replacement and Adjustments Spark Generator Replacement Ignition Control ReplacementHigh Limit Thermostat Replacement Solenoid Valve ReplacementIgniter Sensor Assembly Replacement Burner Alarm Light ReplacementPilot Light 220V Replacement Burner Blower Motor ReplacementRELAY, GAS Control Replacement Model 1046,1047 Relay ASSEMBLY, Burner Blower Motor ReplacementTemperature Control Replacement Time Delay RELAY, 20 Minute ReplacementThis page intentionally left blank Parts / Model Series 1000 & 1200 General Letter DescriptionBlow UP / 1000, 1200 General Parts / Access Door & 1050 Door Blow UP / Access Door & 1050 Door Parts / Model 1000,1001,1050,1051,1004, &1005 S/N 100 to Blow UP / 1000, 1001, 1050, 1051, 1004, & 1005 S/N 100 to Parts / Model 1000,1001,1004, and 1005 S/N 4390 & Above Blow UP 1000, 1001, 1004, 1005 S/N 4390 & Above Parts Blow UP / 1022 369247 Shaft Lock Ring Blow UP / 1040 Parts / 1200, 1201, 1204 Blow UP / 1200, 1201, 1204 Parts Blow UP / 1202 Electronic Temperature Control Blow UP / 1240 Parts / Oven Back GAS Blow UP / Oven Back GAS Parts / Oven BACK- Electric Blow UP / Oven Back Electric Parts / Conveyor Motor Assembly S/N 4390 & Above Blow UP / Conveyor Motor Assembly S/N 4390 & Above Parts / Series 1000 Conveyor Blow UP / Series 1000 Conveyor Parts / Series 1200 Conveyor Control SeeBlow UP / Series 1200 Conveyor Control Parts / Series 1200 Conveyor Blow UP / Series 1200 Conveyor This page intentionally left blank This page intentionally left blank
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1000, 1200, 1400 specifications

The Lincoln series, particularly the models Lincoln 1000, 1200, and 1400, represents an evolution in luxury vehicles, combining elegance with cutting-edge technology. Each model builds upon its predecessor while introducing features that enhance performance, comfort, and safety.

Starting with the Lincoln 1000, this model set the foundation for the series. It showcased a refined design characterized by sleek lines and an impressive presence on the road. The Lincoln 1000 was equipped with a powerful engine, delivering smooth acceleration and a quiet ride. Interior features included premium materials such as leather upholstery, real wood accents, and a state-of-the-art sound system. Additionally, it offered advanced climate control systems, ensuring passenger comfort. Safety features were also prioritized, with multiple airbags and stability control systems included to enhance driver confidence.

Moving on to the Lincoln 1200, this model took luxury to the next level. The exterior design was more aggressive, with a revised grille and enhanced aerodynamics for better fuel efficiency. The engine options expanded, offering hybrid technology for environmentally conscious consumers without sacrificing power. Inside, the Lincoln 1200 featured an upgraded infotainment system, incorporating a larger touchscreen display along with smartphone integration for connectivity on the go. This model also introduced adaptive cruise control and lane-keeping assist, showcasing Lincoln’s commitment to safety and innovation.

The Lincoln 1400 represents the pinnacle of this series. This model incorporates all the advancements of the previous iterations while introducing next-generation technologies. A hybrid powertrain with electric capabilities provides a quieter, more efficient drive. The design includes sophisticated lighting technology, such as adaptive LED headlights that adjust to road conditions. Inside, the cabin has been transformed into a haven of luxury, with customizable ambient lighting, heated and ventilated seats, and an advanced noise cancellation system for a serene driving experience. Furthermore, the Lincoln 1400 emphasizes driver assistance technology, featuring an array of sensors and cameras to support features like automatic parking and enhanced collision prevention systems.

In conclusion, the Lincoln 1000, 1200, and 1400 models showcase a remarkable journey of luxury and technology, with each iteration bringing forth innovative features and design enhancements that elevate the driving experience. As Lincoln continues to evolve, the commitment to craftsmanship, comfort, and cutting-edge technology remains central to its identity.
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