Lincoln 1100 Series service manual SEQUENCE OF OPERATION 1134 - 1135 - 1136

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SEQUENCE OF OPERATION 1134 - 1135 - 1136 - 1150

MODEL 1134

ELECTRIC

220/380 VAC

50 HZ

3 PHASE

MODEL 1135

ELECTRIC

240/415 VAC

50 HZ

3 PHASE

MODEL 1136

ELECTRIC

240 VAC

50 HZ

1 PHASE

MODEL 1150

ELECTRIC

220/380 VAC

50 HZ

3 PHASE

POWER SUPPLY

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

 

single phase and a five conductor service on three phase.

 

 

CONTROL BOX AUTO

When the temperature in the control box reaches

 

 

COOL DOWN

120°F ± 3°F (48.9°C ± 1.7°C), the Cooling Fan Thermostat closes,

 

switching power to the Cooling Fans. The thermostat will open at

100°F ±

 

3°F (37.8°C ± 1.7°C) interrupting power to the Cooling Fans.

 

MAIN FAN CIRCUIT

Power is supplied by Line 1 on Model 1136 and L2 on 1134, 1135, and

 

1150 to the normally open main fan relay. Power is also supplied from Line

 

1, through the 1 Amp Fuse to the primary of the Step Down Transformer.

 

120 V AC is continuously supplied from Transformer secondary to terminal

 

number 1 of the 20 Minute Timer and through the High Limit Thermostat

 

(normally closed) to the Main Fan Switch. Closing the Fan Switch ener-

 

gizes the coil of the oven start relay, its contacts close enabling the 20

 

minute time delay module. The 20 minute time delay module supplies 120

 

VAC to the oven fan relay, this normally open contact now closes supply-

 

ing line voltage to the main fan motor. The cooling fans and the time/temp

 

display transformer are also energized.

 

 

HEATING CIRCUIT

Closing the Heat Switch supplies 120 volts AC through the normally open

 

Air Pressure Switch (closed by air pressure from the Main Fan), the 3

 

Amp Fuse, to terminal L1 of the Temperature Control Board, and the Heat

 

Indicator Light.

 

 

TEMPERATURE CONTROL

Closing the Heat Switch supplies 120 VAC to the Electronic Temperature

 

Control. The 2.5K ohm Potentiometer is adjusted to achieve the desired

 

temperature. The Thermocouple will provide varying

millivolts to the

 

Temperature Control. The temperature control board then supplies 120

 

VAC to the coil of the Contactor at intermittent intervals to maintain the

 

desired temperature.

 

 

CONVEYOR DRIVE

Closing the Conveyor Switch supplies 120 VAC to the DC Motor Control

 

Board at terminals L1 and L2. AC volts are converted to DC volts and are

 

supplied to the Conveyor Motor at terminals A+ and A-. Adjustment

S/N 2011383 and above

of the Speed Control Potentiometer (5,000 ohm, 10 turn)

 

 

REFER TO PAGE B15

will change resistance at terminals P1, P2, and P3varying 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

 

respectively. As the motor turns, it drives both the reducergear box and

 

the Tach. Generator. The tach. generatoris a DC voltage generator which

 

supplies a voltage to the DC Motor Control Board and is used as a

 

 

reference for maintaining a constant conveyor speed.

 

 

TIME/TEMP DISPLAY

The secondary output of the Display Transformer, is supplied to terminals

 

1, 2, and 3 of the Time/Temp. Display.The secondary output of the Trans-

 

former is nominally 12.5 to 15 VAC with a center tap. The voltage from

 

center tap to each leg is 1/2 the secondary voltage.

 

 

 

The speed side of the Time/Temp. Display uses a slotted disc

 

Impinger II - 1100 Series Service Manual - International

 

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Contents IMPINGER CONVEYOR OVENS SERVICE MANUALMODEL 1100 SERIES INTERNATIONALTABLE OF CONTENTS SEQUENCE OF OPERATIONS 1104 thru the display into a temperature reading SEQUENCE OF OPERATION 1134 - 1135 - 1136 - S/N 2011383 and above SEQUENCE OF OPERATIONS 2011383 and above SEQUENCE OF OPERATIONS 1152 thru intervals to maintain desired temperature by the display into a temperature reading temperature readingSCHEMATIC SCHEMATIC SCHEMATIC 1134, 1135, 1150, S/N 2011383 AND BELOW SCHEMATIC 1134, 1135 S/N 2011383 AND ABOVE SCHEMATIC 1150 S/N 2011383 AND ABOVE SCHEMATIC 1136, S/N 2011383 AND BELOW SCHEMATIC 1136, S/N 2011383 AND ABOVE SCHEMATIC 1151 S/N 2011383 AND BELOW SCHEMATIC 1151 S/N 2011383 AND ABOVE SCHEMATIC1152 THRU 1158 S/N 2011383 AND BELOW SCHEMATIC1152 THRU 1158 S/N 2011383 AND ABOVE SCHEMATIC1152 AND 1153 S/N 2011821 AND ABOVE SCHEMATIC 1154 THRU 1158 S/N 2011821 AND ABOVE MODELS 1152 - 1153 - 1154 - 1155 - 1156 TROUBLE SHOOTING GUIDE GAS OVENSNo main fan cool down switch. If switch is closed and voltage Burner Switchpresent on one side only, replace switch Gas Pressure SwitchCheck for proper line voltage to Flame will not stay on Power Supply Ignition ControlFlame Sensor Pilot lamp is on, butthen the problem is usually with thetemperature bearings. TheInstallation and Operations Manual improper adjustment. Also check for wornPower Supply Check power supply at the DCDC Gearmotor this condition remove power from the time/temp surge in the incoming power lines. To eliminateswitch for 15 seconds, or if display stays on required. This should eliminate the problem. IfTROUBLE SHOOTING GUIDE ELECTRIC OVENS Air Pressure Switch Switch, HeatThis normally open switch should close when the adjustment knob to maximum temperature positionas follows MODEL Main fan runs after maintenance. Also, most of the problems WITH POWER OFF: To check resistance of thefor proper readings. If these readings are not achieved, replace thermocoupleConveyor will not run MODEL 1151 200 VAC THREE PHASE 60 HZ TROUBLESHOOTING GUIDE ELECTRIC OVENRelay, Main Fan Conveyor will not run S/N 2011383 and above Mercury Contactor Heater ElementsREFER TO PAGE REFER TO PAGE REFER TO PAGE REFER TO PAGE REFER TO PAGE 43STEPPER MOTOR DRIVE Conveyor will not run yellow wires, thermo 12 VAC Power Supplyred wire and 1 white wire Thermocouple Probe Power Supplyexperienced, such as a rolling of IMPINGER II CONVEYOR OVEN REMOVAL, INSTALLATION, AND ADJUSTMENTRELAY, DPST 1.Shut off power at main breaker TO REMOVE THE BLOWER WHEEL FOR PERIODIC CLEANING This is part of the burner blower motor assemblyMOTOR, BURNER BLOWER TO REMOVE BLOWER MOTORAIR PRESSURE SWITCH Page Page SOLENOID VALVE 1.Shut off power at main breaker 1.Shut off power at the main breaker5.Loosen pipe union in piping assembly HEATING ELEMENTS 1.Shut off power at main breakerIGNITION CONTROL 1.Shut off power at main breaker 2.Shut off gas at main line to the oven ORIFICE, MAIN BURNER4.Remove control compartment covers 5.Loosen 4 nuts holding manifold to burner capLAMP, PILOT BURNER LENS, PILOT LAMP 1.Remove gearmotor assembly see “GEARMOTOR” Above OPTICAL ENCODER ASSEMBLY7.To adjust optical encoder TACH. GENERATOR 1.Turn off power at main breakerD C MOTOR CONTROL BOARD 4.Reverse wires fastened to terminals A+ and A 1.Turn off power and remove conveyor5.Reverse wires fastened to terminals T1 and T2 1.Turn off power 2.Remove conveyorTRANSFORMER, TIME/TEMP. DISPLAY MODEL 1100 SERIES OVENS OHMS SWITCH, DISPLAY, SETOVEN TEMPERATURE SWITCH, ON/OFF TRANSFORMER, STEP DOWN/120 VAC DIP SWITCHES FOR 50 SEC. TO 30 MIN. TIMES maximum speed potrefer HALL EFFECT SENSOR - REPLACEMENT AIR PRESSURE SWITCH, BURNER OR OVEN CAVITY 4.Remove conveyor gear motor BURNER ALARM - REPLACEMENT8.Remove top control compartment brace 10.Assemble in reverse orderDESCRIPTION GENERAL –1100SERIESLETTER GENERAL 1100 SERIES BLOW UP 1136,1150,1151,1160 Thru1163 Page MODELS 1152 THRU CONTROL COMPARTMENT - FRONTLETTER DESCRIPTIONCONTROL COMPARTMENT – FRONT 1152-1158BLOW UP DESCRIPTION CONTROL COMPARTMENT – REARLETTER CONTROL COMPARTMENT - REAR BLOW UP MODELS AND ABOVE MODELS 1160-1163S/N 2011978 AND ABOVE CONTROL COMPARTMENT – REAR BLOW UPMODELS 1130-1136,1150,1151S/N 2011383 AND ABOVE DESCRIPTION CONTROL COMPARTMENT – REARLETTER Page MODELS 1152 THRU 1158 S/N 2011821 AND ABOVE CONTROL COMPARTMENT – REARLETTER DESCRIPTIONPage OVEN BACK ASSEMBLY – 1100 SERIES OVEN BACK ASSEMBLY – 1100 SERIES BLOW UP GEARMOTOR ASSEMBLY – 1100 SERIES GEARMOTOR ASSEMBLY – 1100 SERIES BLOW UP CONVEYOR/DOOR – 1100 SERIES CONVEYOR/DOOR – 1100 SERIES BLOW UP This page intentionally left blank This page intentionally left blank
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