Industrial Refrigeration Maintenance

Industrial Refrigeration Maintenance

Industrial Refrigeration Maintenance of Float Valve

On a recent visit to a site in the South East, we maintained the industrial refrigeration float valve. It was an easy job as the electronic part can be easily removed and replaced without breaking into the system. It works by detecting a level in the float chamber and operating the expansion valve solenoid coil

Maintenance of High Industrial Refrigeration Head Pressure

The call out had been to investigate a high head pressure issue. Our engineer arrived on site about 9 o clock and started to investigate the industrial refrigeration maintenance fault- a cup of coffee in hand. The machine started to load up and at around 70% it backed off with high lift warnings on the display. There was a low temperature drop on the liquid line between the float valve and the expansion valve- float valve failure. The float valve is stand alone as it will let anhydrous ammonia liquid through when it builds up- that is if it works of course

Maintenance of Industrial Refrigeration Electronic Parts

The electronic parts of the industrial refrigeration plant were maintained easily with a straight swap

Slide Valve Sensor Maintenance for Industrial Refrigeration

A common kind of slide valve sensor maintained on an industrial refrigeration system works by converting the length of the slide arm into 4-20mA. 4 being closed and 20 being open. To get it to work you have to set the minimum position on the slide arm with a lock nut- then set that to 0 in the program

Failed Slide Arm Electronics | Industrial Refrigeration Maintenance

A common industrial refrigeration maintenance fault is when the slide arm electronics fail, giving a stuck reading on the display. The chiller controls notice the abnormality and shut down the plant

Calibration

If the slide arm is okay, calibration can sort out the problem. In the program. the minimum and maximum positions can be set to ensure the smooth running of the industrial refrigeration plant and maintenance can be kept to a minimum

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