24VAC at transformer secondary. If there is primary

 

 

 

 

voltage, but no secondary voltage, replace control

 

 

 

 

transformer.

 

 

 

Oven control

Check for 24VAC supply to oven control. If no voltage is

 

 

 

 

present, trace wiring back to control transformer. Check

 

 

 

 

for supply voltage to oven control. If no voltage is

 

 

 

 

present, trace wiring back to hi-limit thermostat. If

 

 

 

 

voltage is present, check for a read-out on the display. If

 

 

 

 

there is no read-out on the display, replace oven control.

 

 

 

 

If there is a read-out on the display, set the oven control

 

 

 

 

to maximum temperature (see installation operations

 

 

 

 

manual for temperature adjustment). With the oven

 

 

 

 

control at maximum temperature, check for supply

 

 

 

 

voltage to the heat contactor. If there is voltage at the

 

 

 

 

heat contactor, proceed to “Heat contactor “. If there is

 

 

 

 

no voltage at the heat contactor, trace wiring back to the

 

 

 

 

oven control. If there is no voltage output at the oven

 

 

 

 

control, check the read-out on the oven control. If the

 

 

 

 

oven control reads “PROBE FAIL” this indicates that the

 

 

 

 

thermocouple has failed or become disconnected from

 

 

 

 

the oven control

 

 

 

Contactor, hi-limit (Model

Check for supply voltage to contactor coil. If no voltage

 

 

 

1421-000-E only)

is present, trace wiring back to oven cavity hi-limit

 

 

 

 

thermostat. If supply voltage is present at the coil, check

 

 

 

 

to see that contacts are closed. If there is voltage to the

 

 

 

 

coil and the contacts are not closed, replace contactor.

 

 

 

Thermocouple

Check to see that the thermocouple is securely

 

 

 

 

connected to the oven control. If the thermocouple is

 

 

 

 

connected to the oven control, and the display indicates

 

 

 

 

“PROBE FAIL”, disconnect the thermocouple from the

 

 

 

 

oven control and measure the resistance of the

 

 

 

 

thermocouple. The thermocouple should read approx.

 

 

 

 

11Ω. If these readings are not achieved, replace the

 

 

 

 

thermocouple. If these readings are correct, proceed.

 

 

 

Oven control

If the thermocouple checks good, but the oven control

 

 

 

 

display indicates that there is a thermocouple failure,

 

 

 

 

replace the oven control. If the oven control indicates a

 

 

 

 

temperature reading, but the oven will not heat, proceed.

 

 

 

Thermocouple

WITH POWER ON AND THERMOCOUPLE

 

 

 

 

ATTACHED TO THE OVEN CONTROL: Measure the

 

 

 

 

DC millivolt output of the thermocouple. Refer to the

 

 

 

 

thermocouple chart (located in the “Removal” section of

 

 

 

 

the manual) for proper millivolt readings. If these

 

 

 

 

readings are not achieved, replace thermocouple.

 

 

 

Oven control

If the thermocouple checks good, but there is no supply

 

 

 

 

voltage output to the temperature regulation valve,

 

 

 

 

replace the oven control. If there is supply voltage output

 

 

 

 

to the heat contactor, proceed.

 

 

 

Heat contactor

Check for supply voltage to the heat contactor. If voltage

 

 

 

 

is present, listen for contacts to open and close. Also

 

 

 

 

check for opens or shorts in the operating coil. Replace

 

 

 

 

heat contactor as needed.

 

 

Intermittent heating

Thermal/overload of main fan

The main fan motor is equipped with internal thermal

 

 

 

motor

protection and will cease to operate if overheating

 

 

 

 

occurs. As the motor overheats and cool, this will cause

 

 

 

 

the heating system to cycle on and off intermittently.

 

 

 

 

Improper ventilation or lack of preventive maintenance

 

 

 

 

may cause this problem. Also most of the problems

 

 

 

 

listed under “Oven will not heat” can cause intermittent

 

 

 

 

failure.

 

 

Conveyor will not run

Incoming power supply

Check circuit breaker, reset if required. Check power

 

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

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Lincoln 1454-000-E, 1455-000-E service manual With Power on and Thermocouple
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1454-000-E, 1455-000-E specifications

Lincoln 1455-000-E and 1454-000-E represent two cutting-edge welding machines that have been designed to meet the demanding needs of modern industrial environments. With their advanced features and robust technologies, they cater to a wide range of welding applications, making them an ideal choice for professionals seeking efficiency and reliability.

The Lincoln 1455-000-E is equipped with a high-performance inverter technology, ensuring that it provides a stable and consistent arc. This feature significantly enhances the precision of welds, minimizing defects and ensuring high-quality outputs. The inverter system also lends itself to a more lightweight and compact design, making the machine easy to transport and maneuver, which is a crucial factor in many job sites.

On the other hand, the Lincoln 1454-000-E model focuses on versatility and adaptability. This machine supports multiple welding processes, including MIG, TIG, and stick welding, which allows users to switch between methods seamlessly based on their project demands. This flexibility is built upon a user-friendly control panel that simplifies process adjustments and settings, enabling welders of all skill levels to operate the machine efficiently.

Both models boast a robust construction, designed to withstand harsh working conditions typically found in industrial settings. They are equipped with thermal overload protection, which prevents damage and ensures longevity even during prolonged use. Additionally, these machines feature an integrated cooling system that enables extended operational periods without overheating.

Connectivity is another key feature of both models. They are designed with modern technological integration in mind, offering options for remote monitoring and control through dedicated software. This capability allows operators to track performance metrics in real-time and make necessary adjustments on the fly, optimizing their welding processes.

Furthermore, safety is a top priority in the design of the Lincoln 1455-000-E and 1454-000-E. Both machines come with built-in safety mechanisms, including voltage reduction features to protect the user from potential electrical hazards.

In conclusion, the Lincoln 1455-000-E and 1454-000-E are exemplary machines that combine advanced welding technologies with robust features, making them suitable for a variety of industrial applications. Their design emphasizes efficiency, ease of use, and safety, appealing to both professionals and novices in the welding industry.
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