Ingersoll-Rand 125-200 HP/90-160 KW User's Manual | Page 16
14
2.5 OUTDOOR SHELTERED INSTALLATION
Many times a compressor must be installed outside due
to jobsite conditions or limited space within a
manufacturing facility. When this occurs there are certain
items that should be incorporated into the installation to
help ensure trouble free operation. These items have
been listed below plus Figure 2.5-1 has been included to
show a typical outdoor sheltered installation. The unit
must be purchased with the Outdoor Modification Option
to provide NEMA 4 electrics and a cabinet exhaust on
the end of the unit rather than the top to prevent recir-
culation of cooling air.
■
The compressor should be on a concrete pad
designed to drain water away. If the concrete pad is
sloped, then the compressor must be leveled. In order
to properly pull cooling air through the aftercooler, the
base/skid must be sealed to the concrete pad.
■
The roof of the shelter should extend a minimum of
4 ft (1.2 m) around all sides of the compressor to pre-
vent direct rain and snow from falling on the unit.
■
Air-cooled machines must be arranged under the
shelter in a way that prevents air recirculation (i.e. hot
exhaust back to the package inlet).
■
If the installation includes more than one compressor,
the hot air exhaust should not be directed towards the
fresh air intake of the second unit or an Air Dryer.
■
If a standard machine is to be installed outside, the
ambient temperature must never drop below 35°F
(1.7°C).
■
If ambient temperature drops below 35°F (1.7°C) to as
low as –10°F (–23°C) the unit must be supplied with
the Low Ambient Option. Installations below –10°F
(–23°C) ambient are not recommended. The Low
Ambient Option requires a separate power source to
operate internal heaters.
■
Arrange the machine with the Intellisys con-
troller/starter enclosure facing away from the sun as
radiant heat can affect starter/lntellisys performance.
Also direct sunlight and UV rays will degrade the
membrane touch panel. This is not a warrantable
situation.
■
Power disconnect switch should be within line of sight
and in close proximity to the unit. N.E.C. and local
electrical codes must be followed when installing the
power disconnect switch.
■
Condensate drains must never be allowed to dump on
the ground. Run to a suitable sump for future
collection and disposal or separation of lubricant and
water mixture.
■
Incoming power connections must use suitable
connectors for outdoor weather tight service.
■
A minimum of 3 ft (.9 m) clearance must be allowed
on all four sides of the unit for service access. If
possible, access by a forklift and/or an overhead beam
hoist should be kept in mind (for eventual service to
airend or motor).
■
If the area around the installation contains fine
airborne dust or lint and fibers etc., then the unit
should be purchased with the High Dust Filter Option
and TEFC motors.
■
If larger debris, such as leaves or trash, are blowing in
the area, the Inlet Panel Filter Accessory should be
purchased and added to the unit (ship loose item).
■
Some type of protection such as a fence or security
system, should be provided to prevent unauthorized
access.
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