Sigma 1457, 1456 Nat. Gas, Lp Gas, Power Supply, Control BOX Auto, Cool Down, Main FAN Circuit

Page 2

SEQUENCE OF OPERATION

IMPINGER ADVANTAGE

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

MODEL 1433-000-E

230VAC

50 HZ.

NAT. GAS

MODEL 1434-000-E

230VAC

50 HZ.

LP GAS

MODEL 1456

 

220/240VAC

50 HZ.

NAT. GAS

MODEL 1457

 

220/240VAC

50 HZ.

LP GAS

 

 

POWER SUPPLY

Electrical power is to be supplied to the oven by a three conductor

 

service.

 

 

 

Brown conductor is hot.

 

 

Blue conductor is neutral.

 

 

Green conductor is ground.

 

CONTROL BOX AUTO

When the temperature in the control box reaches 120°F ± 3°F (48.9°C

COOL DOWN

±

°

 

 

 

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 the 10 Amp oven

 

fuse, to a normally open contact of the oven power switch. Power is

 

also supplied to the control box cooling fan. 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.

BURNER 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. Through the gas pressure proving switch (gas pressure

 

switch removed at S/N N31348) to the ignition control. The combustion

 

motor is now energized, the normally open combustion air switch

 

closes upon sensing air. After a pre-purge period between 30 and 60

 

seconds, the spark generator and the main gas valve are energized.

 

Ignition should now occur

 

TEMPERATURE CONTROL

Closing the oven fan switch supplies line voltage to the primary of the

 

control transformer and through the ignition control, 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 temperature regulation valve at intermittent intervals

 

to maintain 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 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.

2

Impinger I – Adv Digital – Gas Service Manual – International

Image 2
Contents Impinger Conveyor Ovens NAT. GAS Power SupplyTemperature Control LP GASSchematic Diagram Serial Number N28654 to N31348 Serial Number N31349 and Above Symptom Possible Cause Evaluation With Power OFF Remove 3 prong plug on gas Not stay on, check the reset button for the ignition Page With Power on and Thermocouple Belt JAMSensor sensor is located in the conveyor motor Cooling FAN, Control BOX Replacement FAN, Main ReplacementCAPACITOR, Motor Replacement Impinger Advantage SeriesTo Remove the Blower Wheel for Periodic Cleaning THERMOSTAT, Cooling FAN ReplacementBurner Blower Motor Replacement Burner AssemblyTemperature Regulation Valve Replacement SWITCH, Burner Reset ReplacementBurner Alarm Replacement THERMOSTAT, Oven Cavity HI-LIMIT ReplacementBurner Ignitor Replacement Spark Generator ReplacementConveyor Drive Motor Replacement Thermocouple Measurment Temperature Millvolts ApproxControl Transformer Replacement CAPACITOR, Conveyor Motor ReplacementOven Control Replacement Pilot Orifice ReplacementON-OFF Switch Replacement Fuse Holder ReplacementGeneral View Advantage Series Letter Part Number DescriptionPage Control BOX 1456,1457,1433-000-E, 1434-000-EPage Oven Back GAS and ElectricPage Conveyor 1450 Series Page This page intentionally left blank This page intentionally left blank

1434-000-E, 1457, 1456, 1433-000-E specifications

The Sigma 1457, 1433-000-E, 1434-000-E, and 1456 are advanced technological products renowned for their integration in various industries, showcasing a blend of innovation, efficiency, and reliability. Each model boasts distinct features designed to enhance performance, making them essential tools for professionals across various sectors.

The Sigma 1457 is equipped with state-of-the-art sensory technologies that enable accurate and quick data collection. Its advanced algorithms process complex information rapidly, ensuring users receive real-time feedback. This model is particularly suited for applications requiring precision, such as environmental monitoring and industrial automation. The interface is user-friendly, allowing easy navigation and configuration, while the robust build ensures longevity even in harsh conditions.

On the other hand, the Sigma 1433-000-E is designed specifically for versatility. It supports multiple data formats and can be seamlessly integrated with existing systems, making it a favorite among engineers and technicians. This model features enhanced connectivity options, such as Bluetooth and Wi-Fi, facilitating wireless communication and data sharing. Furthermore, its compact design ensures it can be deployed in space-constrained environments without compromising on performance.

The Sigma 1434-000-E takes innovation a step further with its integrated AI capabilities. This model can learn from patterns and predict outcomes based on historical data, enhancing decision-making processes. It also comes with customizable settings, allowing users to tailor its functionality to specific needs. This adaptability makes it ideal for industries such as healthcare, where precise predictions can lead to improved patient outcomes.

Lastly, the Sigma 1456 stands out for its durability and energy efficiency. Constructed with high-quality materials that resist wear and tear, this model is perfect for long-term use in demanding situations. Its low power consumption further adds to its appeal, resulting in cost savings for users. The Sigma 1456 also utilizes advanced analytics to provide insights into operational efficiency, enabling organizations to optimize processes and reduce waste.

In conclusion, the Sigma 1457, 1433-000-E, 1434-000-E, and 1456 embody the pinnacle of technological advancement, offering tailored features and solutions for professional applications. Each model is designed to meet the diverse needs of users while ensuring reliability and efficiency, making them invaluable assets in their respective fields.