Installation; Selecting A Location; General; Temperature - Gardner Denver GD 70 Parts List, Operating & Service Manual

EN
„ SELECTING A LOCATION
„ GENERAL
Select a clean, dry, and bright indoor area with sufficiant space for proper
accessibility and cooling air flow. Install the unit at least 12 inches
(30 cm) away from walls and make sure that the main power supply is
clearly Identified and accessible.
„ TEMPERATURE
Ideal operating temperatures are between 32°F and 100°F (0°C and 37.8°c)
If temperatures consistently drop below 32°F (0°C). You must protect safety
relief valves from freezing.
CAUTION
Never operate in temperatures below 20°F (-6.6°C) or above
125°F (51.0°C).
„ HUMID AREAS
In frequently humid areas, moisture may form in the bare pump and
produce sludge in the lubricant, causing running parts to wear out
prematurely. Excessive moisture is especially likely to occur if the unit is
located in an unheated area that is subject to large temperature changes.
Two signs of excessive humidity are external condensation on the pump
when it cools down and a "milky" appearance in petroleum compressor
lubricant. You may be able to prevent moisture from forming in the bare
pump by increasing ventilation, operating for longer intervals or installing
an external crankcase heater kit.
„ NOISE CONSIDERATIONS
Consult local officials for information regarding acceptable noise levels in
your area. To reduce excessive noise, use vibration isolator pads or intake
silencers, relocate the unit or construct total enclosures or baffle walls.
„ PERMANENT MOUNTING
WARNING
Remove the unit from the skid before mounting.
The unit must be permanently mounted. When mounting the unit, bolt the
feet to a firm, level foundation.
EN-6

INSTALLATION

„ TYPICAL DISCHARGE CIRCUIT
Discharge piping should include a relief valve to protect the compressor,
a check valve to prevent backflow, and a three way ball valve to allow air
flow to downstream or vent. We also recommend to have a pressure guage
on the supply side of the ball valve to allow operator to monitor pressure.
See basic diagram below.
„

INSTALLING REMOTE AIR INLET PIPING

Do not operate the unit without air inlet filter(s).
If the air around the unit is relatively free of dirt, install the air inlet filter(s)
at the inlet connection at the bare pump. If remote air inlet piping or heavy
duty filtration is required, contact your dealer for information.
„ INSTALLING DISCHARGE PIPING
When you install air discharge piping, adhere to the following general
guidelines. Contact your dealer for more information.
Do not use plastic pipe, rubber hose, or lead-tin soldered joints
anywhere in the compressed air system.
If an aflercooler, check valve, block valve, or any other restriction
is added to the compressor discharge, install a properly-sized
ASME approved safety/relief valve between the compressor
discharge and the restriction.
If you will be using Gardner Denver synthetic compressor
lubricant, all downstream piping material and system
components must be compatible. Refer to the following material
compatibility list. If there are incompatible materials present
in your system, or if there are materials not included in the list,
contact Gardner Denver for recommendations.
CAUTION
WARNING
WARNING
CAUTION
HYD-7-610