BURNER ALARM – REPLACEMENT
. | Shut off power at main breaker. |
. | Remove control panel top and front cover. |
. | Remove two wires from burner alarm and mark for reassembly. |
. | Remove mounting ring from burner alarm and remove from control box. |
. | Reassemble in reverse order and check system operation. |
SPARK GENERATOR – REPLACEMENT | |
. | Shut off power at main breaker. |
. | Remove control panel top and front panel. |
. | Remove all wires from spark generator and mark for reassembly. |
. | Remove two mounting screws and remove spark generator. |
. | Reassemble in reverse order and check system operation. |
MAIN BURNER ORIFICE – REPLACEMENT | |
. | Shut power at main breaker. |
. | Shut off gas supply to oven. |
. | Remove control panel top and front cover. |
. | Remove burner manifold. (See “TEMPERATURE REGULATION VALVE”) |
. | Remove main burner orifice from burner manifold. |
. | Reassemble in reverse order and check system operation. Check all gas line fittings for leaks. |
MERURY CONTACTOR – REPLACEMENT | |
. | Shut off power at main breaker. |
. | Remove control panel top and front cover. |
. | Disconnect all wires from mercury contactor and mark for reassembly. |
. | Remove mounting screws and remove mercury contactor. |
. | Reassemble in reverse order and check system operation. |
AIR PRESSURE SWITCH – MAIN FAN - REPLACEMENT AND ADJUSTMENT | |
. | Shut off power at main breaker. |
. | Remove control panel top and front cover. |
. | Disconnect all wires and mark for reassembly. |
. | Disconnect air switch tube from air pressure switch. |
. | Remove mounting screws and remove air pressure switch. |
. | Reassemble in reverse order and check system operation. Adjust air pressure switch as needed. |
. | To adjust air pressure switch, turn adjusting screw fully counter clockwise. With heat on, turn adjusting screw |
| clockwise until heat shuts off. Turn adjusting screw ¼ turn counter clockwise and unit should heat. |
AIR PRESSURE SWITCH – BURNER MOTOR – REPLACEMENT AND CALIBRATION | |
. | Shut off power at main breaker. |
. | Remove control panel top and front cover. |
. | Disconnect all wires and mark for reassembly. |
. | Remove air tube from air pressure switch and remove air pressure switch from hanger. |
. | Reassemble in reverse order and check system operation. Adjust air pressure switch as needed. |
. | To adjust air pressure switch, remove cover over terminals to access adjustment screw. To increase |
| sensitivity, turn screw counter clockwise. Check for proper line voltage switching from N.C. to N.O. as the air |
| pressure switch closes. |
HEATING ELEMENT – REPLACEMENT | |
. | Shut off power at main breaker. |
. | Remove back cover. |
. | Disconnect motor wires and heating element wires and mark for reassembly. |
. | Remove oven back from oven. |
20 | Impinger II – |
