F) Known Misuse - Parker PNEUDRI domnick hunter MAXI PLUS MPXS Series Manual

F) KNOWN MISUSE
(Please ensure that the following do not occur in your installation).
INLET FILTERS
* Installation of filters remote from dryer allowing further condensation to occur between filters and the dryer.
* Blow down valve upstream of filters causing back flow/possible collapse of filter element.
* Installing AA/AO filters in wrong flow direction.
* Opening inlet valve too quickly, causing initial high DP across filter element.
* DP gauge fitted wrong way round giving false DP indication.
* Combining drain pipes from WS/AO/AA.
INLET MANIFOLD
* Pipe diameter too small, causing preferential flow on multi-bank installations.
* No automatic drains fitted to pipework.
* Unsupported pipework causing strain on gasket joints.
* Not enough clearance for removing filter bowls.
* Pipework from manifold to dryer taken from the bottom of the manifold instead of the top or centre allowing bulk
water to drain into dryer inlet.
LOWER MANIFOLD
* Pipe kinks to control valves causing poor/non-response - use of too short a pipe.
* Insufficient room to remove inlet valve assembly.
* Insufficient room to remove exhaust valve assembly.
INLET
MANIFOLD
TO DRYER
INLET
MANIFOLD
TO DRYER
either way is ok
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