13-21-616 v00 Page 14
Water-Cooled Units
- The water-cooled unit with the standard enclosure requires sufficient air flow, Figure
2-2, for electric motor cooling. Air is drawn in on the motor side of the unit and is exhausted through the roof
on the separator side of the unit. Do not block air flow to and from unit. Allow three and one-half (3-1/2) feet
(1.1 M) to the nearest obstruction on the starter/control box end of the unit along with all other sides of the
unit. Allow four (4) feet (1.2 M) to the nearest obstruction above the unit.
FOUNDATION
- The Gardner Denver Rotary Screw compressor requires no special foundation, but should
be mounted on a smooth, solid surface. Whenever possible install the unit near level. Temporary installation
may be made at a maximum 10
angle lengthwise or 10
sidewise.
Mounting bolts are not normally required. However, installation conditions such as piping rigidity, angle of
tilt, or danger of shifting from outside vibration or moving vehicles may require the use of mounting bolts
and shims to provide uniform support for the base.
OIL RESERVOIR DRAIN
- The oil drain is piped from the bottom of the reservoir with a ball valve and a
flexible hose.
ENCLOSURE
- The compressor, electric motor, oil cooler and aftercooler are mounted inside the enclosure.
Service doors are provided for maintenance access. Be sure to allow enough space around the unit for the
doors to open completely. Any of the enclosure doors may be removed by opening the door and lifting it up
slightly to disengage the hinges.
For aluminum oil coolers, do not use any cleaning solution that is not compatible
with aluminum. Use of improper solution may result in damage to the cooler.
If the compressor unit base is raised above floor level, the space between the
floor and the base bottom must be closed with solid material all around.
Do not operate the compressor with the fan and coupling guard removed.
Exposed fan and couplings may cause injury to personnel.