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8.0 INSTALLATION AND INITIAL STARTUP
8.1 LOCATION AND MOUNTING
The dryer should not be located in an area where ambient
temperature is likely to exceed 113°F (45°C) or be less
than 50°F (10°C). The dryer must be located in an area
that provides sucient clearance from walls and other
adjoining equipment to allow easy access for servicing
and maintenance requirements. A minimum of 18 inches is
required to allow free ow of air to the condenser inlet.
If loads uctuate widely, the dryer should be positioned
ahead of the receiver and sucient storage capacity
downstream is necessary to prevent excessive air ow
through the dryer.
When installed after any compressor that causes signicant
vibration or air pulsation, such as reciprocating compressors,
proper vibration isolation and pulsation dampening devices
should be added to protect the dryer.
NOTICE
Failure to comply to the above instructions may
result in equipment malfunction and will void
warranty.
NOTICE
Always use a backup wrench when making any
threaded connection to the dryer. Failure to use a
backup wrench may result in damaged tubing and
components internal to the cabinet.
8.2 PIPING AND VALVES
Install piping, ttings and accessories as required for specic
site conditions and requirements. Figure 3 indicates a typical
piping arrangement for a refrigerated dryer, including dryer
and lter bypasses. This gure can be used as a guide for
valve and accessory placement in the system.
A high-pressure condensate drain is preinstalled at the
factory. These drains require the user to provide clean, dry
air (80 psig - 120 psig) for proper operation. Connect clean,
dry air source to 1/8” NPT port as indicated on condensate
drain instruction label. Assure needle vent valve is open to
allow for displacement of air with condensate in reservoir.
8.3 FILTRATION
To protect the air dryer from gross contamination associated
with compressor oil and debris and ensure maximum dryer
performance, a pre-lter is recommended. Pre-lters and
post-lters sized to your drying application can be provided
by Ingersoll Rand and are available factory installed. Call
your local distributor to select the lter that best suits
your ltration requirements. In addition to air ltration,
condensate discharge oil/water separators are also available
to address stringent EPA regulations.
8.4 ENVIRONMENTAL CONSIDERATIONS
In many applications, high pressure dryers are a component
of air systems that use high-pressure, oil-free compressors.
These compressors can generate condensate that is
acidic. Such acidic condensate by itself is not considered
problematic for the dryer. However, in environments where
the air compressor is ingesting certain airborne chemicals,
such as the o-gassing from a thermal processing or blow
molding operation, the acidic condensate, when mixed with
the resulting contaminants, can result in a strong organic
acid that can be detrimental to the dryer’s internal surfaces.
This condition is characterized by acidic condensate
(ph below 5.0), condensate with an acrid odor and / or
condensate with a distinct yellow color. Should any of these
conditions be observed, it is recommended that the air
source for the air compressor(s) be relocated such that intake
air for the air compressors is derived from outside the facility.
120.26A D4290NCHPW400F Installation Operation and Maintenance Manual
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