Lincoln 1450 - Manual (Page 10)

Impinger I – 1450 Series Service Manual - Domestic 10
6. Remove incoming nipple.
7. Remove pilot tube assembly from control valve.
8. Disconnect pipe union just above solenoid valve.
9. Disconnect wiring from control valve making note of wire numbers and location. Remove piping from old
valve for installation on new valve.
10. Reassemble in reverse order - after assembly is complete, be sure to check manifold pressure
(3.5" W.C. NAT GAS 10" W.C. LP) and adjust if necessary. (See Section "MANIFOLD PRESSURE -
ADJUSTMENT")
NOTE: Check all gas line fittings for leaks after installation.
FRONT VIEW
MANIFOLD ADJUSTMENT
SCREW LOCATED UNDER
COVER SCREW
TOP VIEW
PILOT
LINE
CONNECTION
MANIFOLD PRESSURE
ADJUSTMENT CONNECTION
MANIFOLD ADJUSTMENT
SCREW LOCATED UNDER
COVER SCREW
MANIFOLD PRESSURE - ADJUSTMENT
1. Remove control panel top and front cover.
2. WITH ELECTRIC POWER AND GAS OFF: Remove the outlet pressure tap plug from the gas control
valve and install the adapter fitting and manometer.
3. Turn on electric power and gas and start-up oven.
4. With oven at full fire, manifold pressure should be (3.5" W.C. NAT/ 10" W.C. LP). If adjustment is
needed, remove cover screw from valve body and adjust by turning regulator screw. (C.W. to increase,
C.C.W. to decrease).
5. Turn off electric power and gas, replace cover screw, remove manometer and adapter; Replace
pressure tap plug.
6. Check pressure tap for gas leaks before closing panel.
7. Close control panel and check system operation.
TEMPERATURE REGULATION VALVE - REPLACEMENT
1. Shut off power at main breaker.
2. Shut off gas supply.
3. Remove control panel top and front cover.
4. Remove gas control valve (See "GAS CONTROL VALVE")
5. Disconnect wires from temperature regulation valve.
6. Remove two (2) hex nuts that hold main orifice bracket in place.
7. Remove temperature regulation valve assembly.
8. Remove piping from temperature regulation valve.
9. Reassemble in reverse order.
10. Check all fittings for leaks.