Quincy Compressor QR-25 Series Instruction Manual

Quincy Compressor QR-25 Series Instruction Manual Manual pdf 17 page image

QR-25 Series Quincy Compressor52201-107, December 2012 15 3501 Wismann Lane, Quincy IL - 62305-3116conditions, when properly serviced, in accordance with the maintenance section of this manual.If, however, the compressor is to be installed in a location where considerable dust, dirt and other contaminants are prevalent, consult your localQuincy distributor for advice and optional filters. A condensate trap must beinstalled as close as possible to the inlet filter if, as a result of installation orenvironmental conditions, there is any risk of moisture forming in the inletpiping. It is the user’s responsibility to provide adequate filtration for thoseconditions. Oil bath filters are not to be used. Warranty will be void if a failureis determined to be caused by inadequate filtration.Remote Inlet FiltersDepending on the size of the compressor and the size and construction of theroom in which the unit operates, the air inlet may have to be located outsideof the room. If it is necessary to remotely install the air filter, make the inletpiping as short and direct as possible. Remotely installed air filters can leadto vibrations in the inlet piping. These vibrations can be minimized by addinga pulsation dampener in the inlet piping between the remote inlet filter(s)and the compressor.If the intake is piped to outside atmosphere, a hooded filter should beinstalled to prevent water or snow from being ingested into the compressor.All inlet piping should be at least the same size (or larger) in diame teras the inlet connection to the compressor. For every 10 feet of inlet piping orevery 90° bend, increase the inlet piping diameter by one pipe size. The inletpiping must be thoroughly clean inside. Remove all weld slag, rust or dirt.Galvanized pipe with threaded or flanged fittings is preferred.Never locate the compressor air inlet system where toxic, volatileor corrosive vapors, air temperatures exceeding 100°F, water, orextremely dirty air could be ingested. These types of atmospherescould adversely affect the performance of the compressor system.Compressed Air Discharge SystemThe discharge piping should be of the same diameter as the compressordischarge connection, or sized so that the pressure drop at any point in thesystem does not exceed 10% of the air receiver pressure. Install auxiliary airreceivers near heavy loads or at the far end of a long system. This will insuresufficient pressure if the use is intermittent, or sudden large demands areplaced on the system.Discharge piping should slope to a drop leg (refer to Fig. 3-2, TypicalDrop Leg & Component Location) or moisture trap to provide a collectionpoint where moisture can be easily removed. All service line outlets should beinstalled above the moisture traps to prevent moisture from entering the toolor device using the air. Manual shutoff valves, protected by pressure reliefvalves, should be installed at all service line outlets to eliminate leakage whilethe tools are not in use.As with any piping, all parts of the discharge piping should fit so as not tocreate any stress between the piping and components.CAUTION !