Lincoln 1100 Series service manual SEQUENCE OF OPERATIONS 1152 thru

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SEQUENCE OF OPERATIONS 1152 thru 1158

MODEL 1152

NAT.GAS

220 VAC

50 HZ

1 PHASE

MODEL 1153

L.P. GAS

220 VAC

50 HZ

1 PHASE

MODEL 1154

NAT. GAS

240 VAC

50 HZ

1 PHASE

MODEL 1155

L.P. GAS

240 VAC

50 HZ

1 PHASE

MODEL 1156

TOWN.GAS 220/240 VAC

50 HZ

1 PHASE

MODEL 1157

NAT. GAS

220/240 VAC

50 HZ

1 PHASE

MODEL 1158

L.P. GAS

220/240 VAC

50 HZ

1 PHASE

POWER SUPPLY

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

CONTROL BOX AUTO COOL DOWN

When the temperature in the Control Box reaches

 

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

 

power to the Control Box Cooling Fans. The Thermostat will interrupt

 

power to the Cooling Fans when ‘the control box temperature falls to

 

100°F ± 3°F (37.8°C ± 1.7°C).

 

MAIN FAN CIRCUIT

Power is permanently supplied to the normally open contacts of the oven

 

fan relay, the normally open cooling fan thermostat, and to the normally

 

open oven fan switch. Closing the fan switch supplies line voltage,

 

through a 1A fuse, to the primary of the power transformer (the trans-

 

former steps the voltage down to 120 VAC for the control circuit.) 120

 

VAC is supplied to the cooling fans, terminal #1 of the time delay relay and

 

to the coil of the oven start relay. These normally open contacts close

 

enabling the 20 minute time delay relay. The 20 minute time delay relay

 

supplies 120 VAC to the oven fan relay, its normally open contacts now

 

close, supplying line voltage to the main fan motor.

BURNER CIRCUIT

Closing the Fan Switch supplies line voltage through the 3 amp fuse, and

 

oven start relay (closed by activating the Relay in the main fan circuit).

 

Closing the Burner Switch allows voltage to be supplied through the

 

normally open gas pressure

switch(located in gas valve and closed

 

when proper gas pressure is present), through the normally open Air

 

Pressure Switch (closed by air pressure from main fan), through the

 

normally closed oven cavity high limit thermostat (opens at 662°F (350°C)

 

which is manually resetting after a 18°F(10°C) drop), and to the ignition

 

control.

 

IGNITION CONTROL

The Ignition Control switches (220 or 240 VAC) to the combustion Blower

 

Motor, the normally open combustion Air Switch closes upon sensing air

 

pressure in the burner housing. After a pre-purge period of between 30

 

and 60 seconds, the Spark Generator is energized, the Main Gas Valve

 

Solenoid Valve and Burner Pilot Light are energized, and ignition should

 

now occur.

 

 

When the burner ignition occurs, the Flame Sensor must provide micro

 

amps (normally 2-4 ) to the Ignition Control within 1 second or the burner

 

system will shut down and the buzzer alarm will sound. To recycle the

 

burner, switch off the burner switch (this will disable the buzzer), wait 30

 

seconds, push IN the reset button for the ignition control, and turn on the

 

Burner Switch. The burner sequence of events should now reoccur.

TEMPERATURE CONTROL

Closing the Fan Switch supplies 120 VAC to the Electronic Temperature

 

Control. The 2.5K ohm Temperature Potentiometer is

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 SWITCH, DISPLAY, SET OVEN TEMPERATUREOHMS 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 orderGENERAL –1100SERIES LETTERDESCRIPTION GENERAL 1100 SERIES BLOW UP 1136,1150,1151,1160 Thru1163 Page MODELS 1152 THRU CONTROL COMPARTMENT - FRONTLETTER DESCRIPTIONCONTROL COMPARTMENT – FRONT 1152-1158BLOW UP CONTROL COMPARTMENT – REAR LETTERDESCRIPTION CONTROL COMPARTMENT - REAR BLOW UP MODELS AND ABOVE CONTROL COMPARTMENT – REAR BLOW UP MODELS 1130-1136,1150,1151S/N 2011383 AND ABOVEMODELS 1160-1163S/N 2011978 AND ABOVE CONTROL COMPARTMENT – REAR LETTERDESCRIPTION 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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