Gardner Denver ESM 30 Original User Manual page 11

3. Safety regulations
If a remote control is used, the system must carry a
clearly visible sign with the following note: Attention!
This installation is operated by remote control and can
start up without prior warning!
As an additional safety measure, persons, who start
remotely controlled systems, have to take sufficient
safety precautions in order to ensure that nobody is
checking the system or working on it. For this, a label
with a corresponding warning notice has to be attached
to the remote control equipment.
Compressed air and cooling water lines have to be
clearly marked in line with the local regulations.
If a system comprises several compressors, hand
operated isolator valves have to be installed in order to
be able to shut off each machine individually. When
operating pressure systems, do not rely on the
effectiveness of start valves alone to isolate these
systems.
Safety equipment, protective covers or insulation must
not be removed or modified. Any pressure reservoir,
which is located outside the system, the permissible
operating pressure of which is higher than the
atmospheric pressure and which is fitted with two or
more pressure supply lines, has to be equipped with
additional safety equipment, which will automatically
prevent the admissible operating pressure from rising
by more than 10%.
The installed unit-specific safety valves only assume
the pressure safeguarding function of the compressor
unit provided in currently valid standards and
regulations.
For pressure components/systems mounted to the
connecting flange on the pressure side, a pressure
safety device (safety valve or similar) has to be installed
taking into account the weakest pressurized
component.
The min. and max. temperatures of +1 °C/33.8 °F and
+45 °C/113°F are also valid for the intake air. Pipes
and/or other parts with a surface temperature higher
than 70 °C/158 °F have to be suitably identified and
shielded against touching.
Electrical connections must meet the local regulations.
Power units must be connected to earth and protected
from short-circuits by means of fuses.
Cold dryer
Wherever possible, the cold dryer should be installed in
a place where the ambient air is as clean as possible
and where the temperatures never rise above or fall
below the respective limit values as indicated in the
operating instructions. If required, the cooling air is to
be taken from a cleaner, cooler or warmer area via an
intake channel; depending on the size of the machine,
an additional fan could turn out to be necessary.
If the room temperature can fall below zero, the
condensation drain system must be protected from
freezing, e.g. by means of a steam heater.
If it is possible that the intake temperature of the air will
exceed, from time to time, the admissible maximum
specified in the operating instructions, a precooler with
condensate drain is to be installed before the dryer.
Tests or repair work on the coolant circuit may only be
carried out in a well vented room. Never breath in
coolant vapour; if necessary, wear a breathing mask.
Always wear protective goggles and gloves. If skin
comes into contact with coolants, rinse well with water.
Never take off or tear up clothes but rinse them well
with water until the coolant is washed off; then see a
doctor.
Condensate drain
The drain hose for condensate discharge is to be
connected to the drains or to a collecting reservoir, if
local regulations prohibit direct discharge to the drains.
In connection with this, it must be taken into account
that the condensate from compressors with oil-
lubricated pressure chambers can contain oil.
Normal operation
Take the necessary precautions to ensure that the
machine is used only when in a safe and reliable state!
Operate the machine only when all protective
equipment, emergency shut-off equipment, sound-
proofing elements and extraction devices are in place
and fully functional!
Check regularly that
all means of protection are correctly fitted and fixed,
•
all hoses and/or pipes within the system are in good
•
condition, firmly fixed and do not chafe,
there are no leakages (fuel, oil or coolant),
•
all fittings are firmly tightened,
•
all wires are connected correctly and are in good
•
condition,
all safety valves and other pressure relief
•
mechanisms are in good order and not blocked by
e.g. dirt or paint,
the safety mechanisms are fully functional.
•
If compressed air hoses are used, they must be of the
proper size and suitable for the relevant operating
pressure. Do not use chafed, damaged or poor-quality
hoses.
Only use hose couplings and fittings of the right type
and the correct size.
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