INSTALLATION
POWER REQUIREMENTS. The driving motor requires a 220 volt, 3 phase, 60 hertz
electrical source. Connections to be made between the electrical supply system and the com-
pressor are shown in Figure 2-3.
LOCATION AND VENTILATION. In cold climates, it is desirable to install the com-
pressor in a heated building. Choose a clean, relatively cool location. and provide ample
space around the unit for cooling and general accessibility. Adequate ventilation must be
provided the compressor to assure proper intercooling and aftercooling as well as heat dissi-
pation from the cylinders. This is especially important under conditions of high humidity,
which are conducive to formation of water in the crankcase. If adequate ventilation is not
provided. rusting, oil sludging and rapid wear of running parts may result. This is particu-
larly true for compressors operating on very intermittent duty. At least 15 inches of space
should be provided between the aftercooler end of the unit and the nearest wall.
FOUNDATION.
2-3.1. The unit may be bolted to any substantial, relatively level floor or base. If such a
surface is not available, an adequate base must be constructed. Should a concrete base be
necessary, make certain the foundation bolts are positioned correctly to accept the receiver
feet, and that these bolts project at least 1-3/4 inches above the surface of the foundation.
Refer to Figure 2-1 for correct spacing of bolts.
2-3.2. To prevent vibration and insure proper operation, it is important that the unit be level
and the receiver feet pulled down on shims in such a manner as to avoid pre-stressing the
feet and receiver. The following technique is recommended for anchoring the compressor to
its base:
