Lincoln 1450 - Manual (Page 12)

Impinger I – 1450 Series Service Manual - Domestic 12
REVERSING CONVEYOR DIRECTION
All ovens leaving our plant are wired to operate conveyors from left to right. To reverse conveyor direction, use
the following procedure.
1. Shut off power at oven switch.
2. Set conveyor reversing switch in the other position.
3. Turn oven “on” and check for proper operation.
MAIN ORIFICE - REPLACEMENT
1. Shut off power at main breaker.
2. Remove control panel top and front panel.
3. Remove gas control valve assy.
4. Remove two (2) nuts from burner orifice bracket.
5. Disconnect pipe union.
6. Remove assembly and replace main orifice.
7. Reassemble in reverse order and check system operation. NOTE: Check all gas line fittings for leaks.
PILOT ORIFICE - REPLACEMENT
1. Shut off power at main breaker.
2. Shut off gas supply.
3. Remove burner assembly (See "Burner Assembly").
4. Remove pilot line from pilot orifice.
5. Remove pilot orifice from burner ignitor.
6. Reassemble in reverse order. NOTE: Check all gas line fittings for leaks.
ON-OFF SWITCH - REPLACEMENT
1. Shut off power at main breaker.
2. Remove control box cover.
3. Remove access cover.
4. Depress spring clips on side of switch and push out.
5. Remove wires from back of switch, note wire number and location.
6. Reassemble in reverse order and check system operation.
NOTE: Make sure switch housing is fully seated in control box housing.
OVEN CONTROL – REPLACEMENT
A. Shut off power at main breaker.
B. Remove control box cover and front panel.
C. Remove all wiring connections and mark for reassembly.
D. Remove oven control by pulling control from the mounting pins. Remove control from oven.
E. Before installing new oven control, set voltage jumper (located at the bottom center of the oven
control) to the proper voltage (120V/240V) position. Install the four pushbutton extensions
(included with the oven control) by pushing the extensions onto the four set buttons on control.
F. Reassemble in reverse order and check system operation.
G. Set the oven control for the proper operating mode. The 1400 series ovens use a single temperature
control system. The oven control must be set to the proper operating mode. Set the control as follows:
With the oven power switch “off”, depress the “time” and “up” buttons and turn the oven “on”. Control
will indicate “Imp I or Imp II” Release the buttons, The control will indicate “Temp to store”. Press the
“up” or “down” button until “Imp I” appears on the display. Press the “temp” button. The control is now
set for single burner operation.
FUSE HOLDER – REPLACEMENT
1. Shut off power at main breaker.
2. Remove control box cover.
3. Remove all wiring from fuse holder and mark for reassembly.
4. Remove mounting nut for fuse holder and remove fuse holder.
5. Reassemble in reverse order and check system operation.