Lincoln Impinger 1454-000-E, Service Manual

Impinger I -–Adv Digital – Electric Service Manual - International 

2 

SEQUENCE OF OPERATION 

IMPINGER ADVANTAGE 

SERIAL NUMBER N28654 AND ABOVE 

(OVENS WITH PUSH BUTTON CONTROLS) 

 
  MODEL 

1421-000-E 

 230/400 VAC 

50 HZ.   

3 PHASE 

POWER SUPPLY 

Electrical power is to be supplied to the oven by a five conductor 
service. 
Brown conductor is hot. 
Black conductor is hot. 
Black conductor is hot. 
Blue conductor is neutral. 
Green conductor is ground. 

CONTROL BOX AUTO 
COOL DOWN 

When the temperature in the control box reaches 120

°

F 

±

 3

°

F (48.9

°

C 

±

 1.7

°

C), the cooling fan thermostat will switch power to the control 

box cooling fan. The thermostat will interrupt power to the cooling fan 
when the control box temperature falls to 100

°

F 

±

 3

°

F (37

°

C 

±

 1.7

°

C). 

MAIN FAN CIRCUIT 

Electrical power is permanently supplied through three 50 A fuses to 
the normally open contacts of the hi-limit contactor. Power is also 
supplied, through the 10 Amp motor and control fuse, through the 
normally closed control box hi-limit thermostat, to the normally open 
oven power switch. Power is also supplied to the control box cooling 
fan thermostat. Closing the oven power switch supplies line voltage to 
the main fan motor. Closing the oven power switch also supplies line 
voltage to the heat circuit and to the primary of the oven control 
transformer. 

HEAT CIRCUIT  

Closing the oven power switch supplies line voltage through the main 
fan air pressure switch, through the normally closed oven cavity hi-limit 
thermostat, to the oven control 

TEMPERATURE CONTROL 

Closing the oven power switch supplies line voltage, through the EMI 
filter, to the primary of the control transformer and through the air 
pressure switch and oven cavity hi-limit, to the oven control. 
Secondary voltage, 24VAC, is supplied to the oven control. The oven 
control is set to desired temperature. The thermocouple will provide 
varying millivolts to the oven control. The oven control supplies line 
voltage to the heat contactor at intermittent intervals to maintain 
desired temperature. The display on the oven control will indicate 
when the heat contactor is energized. 
NOTE: The display also indicates oven temperature. 

CONVEYOR DRIVE 

Closing the oven power switch supplies line voltage to the conveyor 
motor and to the primary of the control transformer. Secondary 
voltage, 24VAC, is supplied to the oven control. Setting the oven 
control to the desired time outputs voltage, through a reversing switch, 
to the conveyor motor. 
NOTE: The conveyor system uses a hall effect sensor and magnet to 
prove operation of the conveyor motor. If the motor is not running, 
“BELT JAM” is indicated on the display.