Lincoln 1100 Series service manual Check for proper line voltage to

Page 28

 

Check for proper line voltage to

 

the Burner Blower Motor. This

 

can be checked at motor connecting

 

plug terminal 2 and 5. If voltage is

 

present proceed with next step, if not,

 

wait 30 seconds, push reset button,

 

and try to restart. If this fails, check

 

wires from Thermostat and Burner

 

Blower Motor to the Ignition Control.

 

If all above fails and wires are okay,

 

replace ignition control.

Burner Blower Motor

Check for supply voltage to motor.

 

WITH POWER OFF: turn blower wheel

 

to check for locked rotor.

 

If proper supply voltage is present at

 

motor connecting plug, terminal 2

 

and 5 and motor does not run, replace motor

Air Pressure

Check for proper supply voltage

Switch

switching from “N.C.” to “N.O.” as air

(Burner Blower)

pressure switch closes.

 

If above fails, connect a temporary

 

jumper wire (FOR TESTING ONLY)

 

from terminal “C” to terminal “N.O.”

 

on ignition control (bypasses air

 

switch). NOTE: For Honeywell

 

control only.

 

Check for air switch adjustment,

 

air tube blockage, or misalignment,

 

and if these fail,replace air pressure switch

Spark Generator

A pre-purge-time of 30 to 60 seconds

 

occurs after blower motor starts, check for supply

 

voltage atspark generator.

 

If voltage is not present, check reset

 

button for the Ignition Control.

 

If voltage is still not present, replace

 

ignition control.

 

If voltage is present, visually check

 

for spark at ignitor head located in

 

burner.

Ignitor/Sensor Assembly

Check this assembly for visible

 

damage. If there is no damage, replace

 

the Spark Generator. If there is

 

damage, replace the Ignitor/Sensor

 

Assembly. Also check for frayed or

 

damaged wires in the burner tube.

Gas Valve

Gas valve should open when

 

proper supply voltage is present.

 

If no voltage is present, check the

 

reset button on the ignition

 

control, and all connections for

 

tightness. If there is still no

 

voltage present at gas valve, replace ignition

 

control.If there is voltage present, check for

 

gas pressure at the gas pressure tap

 

located in the gas piping just prior to

 

the burner. If there is no gas pressure, replace

 

gas valve

28

Impinger II - 1100 Series Service Manual - International

Image 28
Contents SERVICE MANUAL IMPINGER CONVEYOR OVENSMODEL 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 temperature reading by the display into a 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 TROUBLE SHOOTING GUIDE GAS OVENS MODELS 1152 - 1153 - 1154 - 1155 - 1156No main fan cool down Burner Switch switch. If switch is closed and voltagepresent on one side only, replace switch Gas Pressure SwitchCheck for proper line voltage to Power Supply Ignition Control Flame will not stay onFlame Sensor Pilot lamp is on, butthen the problem is usually with thetemperature improper adjustment. Also check for worn bearings. TheInstallation and Operations ManualPower Supply Check power supply at the DCDC Gearmotor surge in the incoming power lines. To eliminate this condition remove power from the time/tempswitch for 15 seconds, or if display stays on required. This should eliminate the problem. IfTROUBLE SHOOTING GUIDE ELECTRIC OVENS Switch, Heat Air Pressure SwitchThis normally open switch should close when the adjustment knob to maximum temperature positionas follows MODEL Main fan runs after WITH POWER OFF: To check resistance of the maintenance. Also, most of the problemsfor proper readings. If these readings are not achieved, replace thermocoupleConveyor will not run TROUBLESHOOTING GUIDE ELECTRIC OVEN MODEL 1151 200 VAC THREE PHASE 60 HZRelay, Main Fan Mercury Contactor Heater Elements Conveyor will not run S/N 2011383 and aboveREFER TO PAGE REFER TO PAGE REFER TO PAGE REFER TO PAGE REFER TO PAGE 43STEPPER MOTOR DRIVE Conveyor will not run 12 VAC Power Supply yellow wires, thermored wire and 1 white wire Thermocouple Probe Power Supplyexperienced, such as a rolling of REMOVAL, INSTALLATION, AND ADJUSTMENT IMPINGER II CONVEYOR OVENRELAY, DPST 1.Shut off power at main breaker This is part of the burner blower motor assembly TO REMOVE THE BLOWER WHEEL FOR PERIODIC CLEANINGMOTOR, BURNER BLOWER TO REMOVE BLOWER MOTORAIR PRESSURE SWITCH Page Page 1.Shut off power at the main breaker SOLENOID VALVE 1.Shut off power at 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 ORIFICE, MAIN BURNER 2.Shut off gas at main line to the oven4.Remove control compartment covers 5.Loosen 4 nuts holding manifold to burner capLAMP, PILOT BURNER LENS, PILOT LAMP OPTICAL ENCODER ASSEMBLY 1.Remove gearmotor assembly see “GEARMOTOR” Above7.To adjust optical encoder TACH. GENERATOR 1.Turn off power at main breakerD C MOTOR CONTROL BOARD 1.Turn off power and remove conveyor 4.Reverse wires fastened to terminals A+ and A5.Reverse wires fastened to terminals T1 and T2 1.Turn off power 2.Remove conveyorTRANSFORMER, TIME/TEMP. DISPLAY MODEL 1100 SERIES OVENS OVEN TEMPERATURE SWITCH, DISPLAY, SETOHMS 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 BURNER ALARM - REPLACEMENT 4.Remove conveyor gear motor8.Remove top control compartment brace 10.Assemble in reverse orderLETTER GENERAL –1100SERIESDESCRIPTION GENERAL 1100 SERIES BLOW UP 1136,1150,1151,1160 Thru1163 Page CONTROL COMPARTMENT - FRONT MODELS 1152 THRULETTER DESCRIPTIONCONTROL COMPARTMENT – FRONT 1152-1158BLOW UP LETTER CONTROL COMPARTMENT – REARDESCRIPTION CONTROL COMPARTMENT - REAR BLOW UP MODELS AND ABOVE MODELS 1130-1136,1150,1151S/N 2011383 AND ABOVE CONTROL COMPARTMENT – REAR BLOW UPMODELS 1160-1163S/N 2011978 AND ABOVE LETTER CONTROL COMPARTMENT – REARDESCRIPTION Page CONTROL COMPARTMENT – REAR MODELS 1152 THRU 1158 S/N 2011821 AND ABOVELETTER 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