Make sure you lube all the new seals with oil. I usually add about 2 ounces to what I take out, just to be sure. The whole system only calls for 7 ounces of oil, so its not going to be much. Drain the old oil out of the old compressor, and add that many ounces of new oil to the new compressor. Probably about 2.5 LBS of R-134a, all your parts, new seals, and at least a vacuum pump.Įverything is a straight unbolt and bolt up procedure, except you must fill the compressor with oil. If you want to do it yourself, you will need the proper oil for the system, to fill the compressor and lube all the seals. If I were you, and you don't have access to the recovery machine, or a vacuum pump, I would just pay a shop to do the job, and you bring them the parts. If you have nice shops around there, they will do it this way for you.Īccording to ALLDATA, it is only 1.9 hours to change all the parts, plus the system recharge. If it still has R-134a in it, I would find a shop to suck it all out, change all your parts, and then let them recharge your system with R-134a. You don't have to change the orfice tube, but all it takes is a piece of dirt to piss it off, and screw up the way the system operates.Īll compressor warranties as far as I know, the accumulator must be replaced at the same time for the warranty to be valid. You will notice that pressure drop due to friction increases with flow.If you want to do it right, replace the compressor, accumulator, and orfice tube. Pipe bends are an additional source of friction losses in compressed air piping. Pipe diameter dramatically impacts pressure drop. The correct sizing of pipework is important to provide ample flow and steady pressure to all points of use. Piping: Materials and Installation Considerations The Air Main Charging Valve protects the air treatment components while the air network is pressurized. The oil coalescing filter after the refrigerated dryer removes oil aerosols and remaining liquids and well as fine particles. As with the previous layout, the liquid separator is placed after the compressor (which has a built-in aftercooler) for liquid removal. The layout below would meet the compressed air quality needs typical for packaging, paint spraying, or most compressed air systems. Damage or failures due directly or indirectly to insufficient or excessive voltage may not be covered under warranty.Īir Purity and Treatment: Ensuring Proper Air Quality Thermostatically controlled louvers should be installed at the source of inlet air and where exhaust is discharged to protect units from extreme cold when not running or running under low load.Įlectrical Supply: Important Warnings to Followīefore installing the compressor, check to ensure that your electrical service voltage matches the voltage on the compressor nameplate and ensure that it is internally wired for the proper Voltage.Īctual operating voltage must be within +/- 10% of compressor nameplate voltage. The fresh air inlet needs to be sized appropriately for the equipment to avoid creating negative pressure in the room. Ventilation: Options to Ensure Proper Cooling and Equipment Longevity Because compressor noise is often cited as a reason to place compressors outdoors, DENAIR air compressors come standard with full enclosures designed to significantly reduce noise levels. For these reasons, we recommend installing compressors indoors. Layout Considerations for a Reliable, Energy Efficient, and Safe Compressed Air System.Įxtreme temperatures (hot or cold), moisture, and airborne contaminants can significantly affect compressor durability and air quality.
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