Gardner Denver L55, User And Service Manual

Page: 31 / 64

August 20, 2018 29
7.2 Compressed-air connection
WARNING
A defective connection to the compressed-air
system may jeopardize safe operation of the
compressed-air system.
When connecting the compressor outlet to the
customer’s existing compressed-air system,
check that the necessary operating
temperatures, operating pressures as well as
the necessary connecting flange or connecting
thread are appropriate and in perfect working
order. For connections with hoses, take steps
so that if an end breaks free it won’t “whip”
around dangerously.
Notice
After-coolers, separators, collecting reservoirs and
the compressed-air lines must be equipped with
drain facilities at their lowest points to drain
collected liquids. These facilities have to be fitted to
allow the observance of the draining of such liquids
Hand-operated drain facilities have to be actuated
in accordance with the operating instructions.
Automatic drain facilities have to be checked for
proper function at regular intervals. When draining
condensates into a collecting line, which also
collects the condensate from other machines,
make sure that the collecting line is free from back
pressure at all lines.
When draining condensate, observe the
corresponding regulations for waste water disposal
Fig. 10
Fig. 11
1 Compressed-air connection
2 Thread identification of compressed-air connection
3. Cooling-water inlet (option)
4. Cooling-water outlet (option)
The compressed-air line system is connected at the
compressed air supply of the screw compressor
(-1- Fig. 10).
For this you should use a flexible connection
(e.g., compressed air hose, compensator).
USA/CANADA-Version: 2 - 11 1/2
“ NPT