B) Positioning Your System - Parker PNEUDRI domnick hunter MAXI PLUS MPXS Series Manual

B) POSITIONING YOUR SYSTEM (See Figure 1)
A typical PNEUDRI installation is illustrated below, where the dryer is sized to match the output of the
compressor and installed downstream of a 'wet' air receiver. Care must be taken to ensure that the dryer
cannot be subjected to flows (even peak flows) in excess of its full rated flow capacity.
As the PNEUDRI is sized to the compressor output, the potential therefore exists for overflowing i.e. the
system can draw volumes of air in excess of the compressor output by also utilising the stored volume in the
air receiver.
To prevent overflow, ensure (where applicable) a Flow Control Device (FCD) is fitted into the outlet flexible
connection. This will indicate via high differential pressure when the dryer is being overflowed.
'Wet' Air
Receiver
AR
AA AO WS
Figure 1 - PNEUDRI INSTALLED AFTER A 'WET' AIR RECEIVER
In the ideal situation domnick hunter would always recommend a receiver to be fitted both before and after
the PNEUDRI desiccant air dryer.
The dryer should be securely mounted on a suitably structured, flat and level floor or base which is free from
vibration. It should be secured to the ground using bolts located through the slots in the mounting feet.
Ensure there is sufficient space around the dryer(s) and 750mm (29.5") (minimum distance) between dryer
bank centres.
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