Lincoln 1000, 1400, 1200 service manual Blower Wheel, Burner, Air Pressure Switch

MOTOR CENTRIFUGAL SWITCH

WIRING DIAGRAM

BURNER BLOWER ASSEMBLY

WITH RELAY REMOVED

RED

24 VAC TO IGNITION CONTROL

RED

GROUND 24 VAC

TO GROUND TERMINAL ON IGNITION CONTROL

GREEN

TRANSFORMER P/N 369531

(WHEN USING OLD TRANSFORMER, 120 VAC LEADS ARE BLACK. WIRE TERMINALS ARE PROVIDED.)

WHITE

120 VAC

BLACK

(BUTTSPLICE CONNECTORS PROVIDED FOR 120 VAC POWER SUPPLY)

BLOWER WHEEL, BURNER

This is part of the burner blower motor assembly.

TO REMOVE THE BLOWER WHEEL FOR PERIODIC CLEANING:

1.Shut off power at main breaker.

2.Remove control panel top and front cover.

3.Remove air shutter held by 3 screws.

4.Loosen set screw on blower wheel hub and pull straight out.

5.Reassemble in reverse order.

NOTE: There is no critical placement of the blower wheel on the motor shaft. Just back as far as it will go and then spin the blower to be sure it is not rubbing.

AIR PRESSURE SWITCH

1.Shut off power at main breaker.

2.Remove front control compartment cover.

3.Remove air switch cover plate.

4.Disconnect wiring and mark for reassembly.

5.Loosen 2 screws and remove air switch.

6.Disconnect 1/4" air tube.

7.Reassemble in reverse order.

8.Turn on power and calibrate air switch as follows:

Turn adjusting screw counter clockwise to full out position. Turn main fan and heat switch on.

Turn adjusting screw clockwise until heat shuts off.

Turn adjusting screw counterclockwise 1/4 turn and unit should heat. NOTE: Test as follows:

Oven must be tested in heated condition.

Remove main fan fuse. Main fan should shut down, deactivating air switch causing heat to shut off in approximately 5 to 25 seconds.

Impinger I -–1000 Series Service Manual - Domestic 35