Cub Cadet 1450, 1451 service manual Sequence Of Operation Impinger Advantage

SEQUENCE OF OPERATION

IMPINGER ADVANTAGE

SERIAL NUMBER N28654 AND ABOVE (OVENS WITH PUSH BUTTON CONTROLS)

MODEL 1450		120VAC	60 HZ.	NAT. GAS
MODEL 1451		120VAC	60 HZ.	LP GAS
POWER SUPPLY	Electrical power is supplied to the oven by a three conductor cordset. Voltage
	from the black conductor to the white conductor is 120VAC. The white
	conductor is neutral. The green conductor is ground.
CONTROL BOX AUTO	When the temperature in the control box reaches 120°F ± 3° (48.9°C ± 1.7°C),
COOL DOWN	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° (37.0°C ± 1.7°C).
MAIN FAN CIRCUIT	Electrical power is permanently supplied, through a 10 Amp fuse, to the
	normally open contacts of the oven power switch. Power is also supplied to the
	normally open control box cooling fan thermostat. Closing the oven power
	switch supplies 120VAC to the main fan motor and to the control box cooling
	fan. Closing the oven power switch also supplies 120VAC to the burner blower
	motor, the primary of the oven control transformer and to the centrifugal switch
	of the main fan motor.
BURNER CIRCUIT	Closing the oven power switch supplies 120VAC to the burner blower motor and
	to the normally open centrifugal switch of the main fan motor. As the main fan
	motor reaches approx.900 RPM, the centrifugal switch closes supplying
	120VAC to the oven control and to the primary of the burner transformer. The
	transformer secondary supplies 24VAC, through the centrifugal switch of the
	burner blower motor, to the ignition control.
IGNITION CONTROL	When the ignition control is supplied with 24VAC, the pilot valve and spark
	igniter are energized. Ignition should now occur. After the pilot flame is proven,
	the main valve is energized.
TEMPERATURE CONTROL	Closing the oven fan switch supplies 120VAC to the primary of the control
	transformer and, through the centrifugal switch of the main fan motor, 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 120VAC to the
	temperature regulation valve at intermittent intervals to maintain the desired
	temperature. The display on the oven control will indicate when the temperature
	regulation valve is energized.
	NOTE: The display also indicates oven temperature.
CONVEYOR DRIVE	Closing the oven power switch supplies 120VAC 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 conveyor motor is not running, “BELT
	JAM” is indicated on the display.

2 Impinger I – 1450 Series Service Manual - Domestic