Positioning; Piping - Quincy QHD750 Instruction Book

4.3

Positioning

Guidelines
It is important to keep the following in mind when installing the dryer:

Place the dryer at a location where the temperature never exceeds the limits.

Place the dryer as level as possible and fix it firmly to the concrete.

Provide enough space (approximately100 cm) around the dryer for maintenance operations.

When the compressor has no built-in water separator, a water separator must be installed before the
dryer, in order to prevent free water from entering the dryer.
4.4

Piping

Recommendations
To ensure correct operation of the dryer, it has to be fitted properly into the compressed air system
consisting of a compressor, the dryer and an application.
To prevent free water from entering the dryer, a water separator must always be installed in case
of Standard Pack units.
It is required to install pressure relief valves on each vessel of the dryer when there are isolating
valves installed at the inlet and the outlet of the dryer to isolate the dryers from the air net.
Never overload the dryer as this will damage the desiccant. It may be recommended to install the air dryer
upstream of the air receiver to prevent overload (e.g. after extending the dry air system). Consult Quincy if
in doubt.
Concerning the piping, following checks should be carried out:

Plugs must be removed before connecting the pipes.

Make sure that all pipes, filters, valves, etc. are clean and are installed correctly with or without
bypass system.

Make sure that external forces or moments, exerted to the tie-in points, are kept to a minimum.

Make sure that the piping is installed stress-free.
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When installing the piping, make sure that all pipes are clean.
Make sure that the dryer is protected against overpressure by safety valves which
are capable of blowing off the total volume flow of all connected compressors. The
safety valves must be installed as close as possible to the dryer without any
obstruction in between.
All connections to the dryer must be mounted stress-free. If necessary, additional
flexible connections must be foreseen.
Instruction book
9829 2151 14