9-ENG
Wiring Instructions (Fig. 3)
Perform electrical wiring according to the following instructions:
Improper electrical grounding can result in a risk of
electrical shock. Wiring for the pressure switch AND electrical motor
should be done by a licensed electrician in accordance with national
and local codes and ordinances.
Install the air compressor unit as close to the main power supply as possible. This
practice will avoid using long lengths of electrical wiring for the power supply which
can cause power loss to the motor. When connecting wires make sure that:
1. The amperage rating of the electrical box is adequate.
2. The supply line has the same electrical characteristics (voltage, cycle, and
phase) as motor.
Refer to the Specification Chart or your air compressor unit.
NOTE: THESE UNITS DO NOT INCLUDE ANY WIRING BECAUSE OF
VARIOUS INSTALLATION REQUIREMENTS.
Wiring must be such that full motor nameplate voltage plus or minus 10% is
available at the motor terminals during starting. Refer to local codes for
recommended wire sizes for correct wire size and maximum wire run; undersize
wire causes high amp draw and
overheating to the motor.
Electrical wiring
must be located away from
hot surfaces such as the air
compressor head, compressor
cylinder, or compressor outlet
tube.
Typical Wiring Of Air compressor Units
with 60 Gallons Capacity
Fig. 3