Lincoln Impinger Conveyor Ovens 1100 Series - Manual (Page 68)

TYPE OF GAS INCHES of CENTIMETERS of kPa Mbar
WATER
COLUMN
WATER COLUMN
NATURAL GAS 3.5" WC 8.9 cm WC .87kPa 8.70Mbar
L.P. GAS 10"WC 25.4 cm WC 2.48kPa 24.8Mbar
CITY/TOWN GAS 1.4"WC 3.56 cm WC .35kPa 3.5Mbar
AIR PRESSURE SWITCH, BURNER OR OVEN CAVITY
TO REPLACE AIR SWITCH:
1. Shut off power at main breaker.
2. Remove conveyor.
3. Remove rear control compartment cover.
4. Remove cover of air switch exposing adjustment screw.
5. Disconnect and mark wires for proper reassembly.
6. Remove air tube and remove switch from hanger.
7. Reinstall in reverse order, making sure wires are properly attached and air tube is properly attached, unblocked
and aligned properly to avoid crimping.
TO CALIBRATE AIR SWITCH:
1. If switch will not activate when blower pressure is supplied, turn adjustment screw counter clockwise (-).
2. If switch will not deactivate when blower pressure is eliminated, turn adjustment clockwise (+).
SPARK GENERATOR
1. Turn off power.
2. Remove conveyor.
3. Remove control compartment covers.
4. Disconnect 2 power leads to ignition control. (Located in bottom front of rear control compartment).
5. Disconnect high voltage cable.
6. Remove 2 screws and lift out generator.
7. Replace in reverse order.
IGNITER SENSOR PROBE
1. See Page D8 to remove “hot surface ignitor”.
2. Unfasten screws and remove probe.
3. Disconnect wires and replace probe in reverse order.
IGNITION CONTROL
1. Shut off power at main breaker.
2. Remove control compartment covers.
3. For Honeywell Ignition Control, loosen 2 screws and remove control from base. For Landis & Gyr Ignition
Control, depress 2 clips and remove control from base.
4. If replacing the control and base, remove the control first and then 2 screws holding the base. Mark wires prior
to removal.
5. Reassemble in reverse order. Be sure base is correctly mounted or reset will not align with cover hole.
Impinger II - 1100 Series Service Manual - International 68