Gast 0211 Series Lubricated Laboratory Vacuum Pumps and Compressors - Manual (Page 2)

INSTALLATION
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Disconnect electrical power at the circuit breaker
or fuse box before installing this product.
Install this product where it will not come into
contact with water or other liquids.
Install this product where it will be weather
protected.
Electrically ground this product.
Failure to follow these instructions can result in
death, fire or electrical shock.
WARNING
Electrical Shock Hazard
WARNING
DANGER
Your safety and the safety of others
is extremely important.
We have provided many important safety messages
in this manual and on your product. Always read
and obey all safety messages.
This is the safety alert symbol. This symbol
alerts you to hazards that can kill or hurt you and
others. The safety alert symbol and the words
“DANGER” and “WARNING” will precede all safety
messages. These words mean:
You will be killed or seriously injured if you don’t
follow instructions.
You can be killed or seriously injured if you don’t
follow instructions.
All safety messages will identify the hazard, tell you
how to reduce the chance of injury, and tell you
what can happen if the safety instructions are not
followed.
2
Correct installation is your responsibility. Make sure you
have the proper installation conditions and that
installation clearances do not block air flow. Proper
guards should be installed to prevent contact with
moveable parts of this pump. Do Not lift the unit by the
fan shroud.
Blocking air flow over the product in any way can cause
the product to overheat.
Mounting
Position the mounting the product to a stable, rigid
operating surface and using shock mounts will reduce
noise and vibration.
Moisture Trap
Liquid or moisture vapor will damage the pump. Install a
moisture trap if liquids could be drawn into the pump. For
the correct type and size, contact your local Distributor or
the factory.
Plumbing
To prevent air flow restriction, use pipe and fittings that
are the same size or larger than the threaded ports of the
pump. The ports are marked "IN" and "OUT". If the
distance is great, use lines with a larger diameter than
the connections. Give lines a uniform slope, place drain
cock at low point, and avoid extra elbows. For ease of
servicing, use a union or hose with clamps near the
pump (a hose helps eliminate noise and vibration). If a
vacuum/pressure supply tank is used, slope the line
towards tank, provide a drain at the bottom, and place a
check valve between the tank and pump so the pump will
not run backwards when turned off.
Motor Control
It is your responsibility to contact a qualified
electrician to assure that the electrical installation is
adequate and in conformance with all national and local
codes and ordinances.
Determine the correct overload setting required to
protect the motor (see motor starter manufacturerʼs
recommendations). Select fuses, motor protective
switches or thermal protective switches to provide
protection. Fuses act as short circuit protection for the
motor, not as protection against overload. Incoming line
fuses help to withstand the motorʼs starting current.
Motor starters with thermal magnetic overload or circuit
breakers protect motor from overload or reduced
voltage conditions.
The wiring diagram supplied with the product provides
required electrical information. Check that power
source is correct to properly operate the dual-voltage
motors.
Grounded Plug
Grounding Pin
Grounded Outlet
120-volt grounded connectors
shown. 220/240-volt grounded
connectors will differ in shape.
DIAGRAM A
Electrical Connection