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Section III - Installation
Quincy Compressor
®
- QSD™ 19
Electrical
Before installation, the electrical supply should be
checked for adequate wire size and branch circuit
capacity. During installation, a suitable fused disconnect
switch or circuit breaker should be provided per local
electrical codes. Where a 3-phase motor is used to drive
the compressor, any unreasonable voltage unbalance
(5%) between the legs must be eliminated and any low
voltage corrected to prevent excessive current draw. The
installation and wiring must be in accordance with
National Electric Code and all state and local codes. A
qualified electrician must perform all electrical work.
This unit must be grounded in accordance with
applicable codes. See control panel for the proper
wiring diagram.
NOTE
Quincy would like to emphasize the importance
of providing adequate grounding for air
compressors. The common practice of grounding
units to building structure steel may not actually
provide adequate grounding protection, as paint
and corrosion build-up may exist.
NEMA electrical enclosures, conduit, motor
enclosures and components must be appropriate
to the area in which they are installed.
Pneumatic Circuit Breakers or Velocity Fuses
The Occupational Safety and Health Act, Section
1926.303, Paragraph 7, published in the Code of Federal
Regulations 29 CFR 1920.1, revised July 1, 1982, states
“all hoses exceeding 1/2” inside diameter shall have a
safety device at the source of supply or branch line to
reduce pressure in case of a hose failure.” The pneumatic
safety devices are designed to prevent hoses from
whipping which could result in a serious or fatal accident.
Guards
All mechanical action or motion is hazardous in varying
degrees and needs to be guarded. Guarding shall be in
compliance with OSHA Safety and Health Standards 29
CFR 1910.219 in OSHA manual 2206 Revised
November 7, 1978 and any state or local codes.
Water and Sewer Facilities at the Installation Site
(Water-cooled models only)
Make sure the water supply is connected and open.
Piping supplied by the user should be at least equal to the
connections provided on the compressor. Sewer facilities
should be readily accessible to the installation site and
meet all the requirements of local sewer codes, plus those
of the compressor. Make absolutely sure water inlet
and discharge connections are correct.
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CAUTION