Installation 3.2 Compressor room
Page 32 Operating instructions for S 40-3...S 150-3 series screw compressors
Fire protection
The following applies to rooms in which compressors with oil injection cooling
are to be installed:
Requirements of fire protected compressor rooms:
– Walls, ceilings, floor and doors must be designed in fire protection class
F30 or higher.
– Flammable liquids must never be stored in the compressor room.
– The floor around the compressor must be made of non-flammable material.
– Leaking oil must not be able to spread out over the floor.
– No inflammable materials must be located within a radius of at least
118 inches around the compressor.
– No inflammable machine parts, such as cable ducts, may run overhead of
the compressor.
Sound protection
Only install compressors in workrooms if the sound pressure level of their
measurement surfaces does not exceed 85 dB (A).
Admissible ambient
temperatures
The compressor room must be clean, dry, cool and free of dust.
Admissible ambient temperatures (see also "Technical data“).
Maximum ambient temperature (for air cooling): + 104°F
Minimum ambient temperature: + 41°F
WARNING!
– For compressors with motor ratings exceeding 54 Hp ensure that the
compressor room is equipped with special fire protection.
– Install compressors with motor ratings exceeding 134 Hp in a separate
fire protected room.
WARNING!
Failure to observe the admissible ambient temperature may lead to the fol-
lowing problems:
– The compressor will switch off when the admissible final compression
temperature is exceeded or undercut.
– Pipe lines and valves will freeze up at low temperatures.
– Damage due to the reduced lubricating ability of the compressor oil.
Measures to be taken to ensure that the admissible ambient tempera-
tures are maintained:
– Avoid any pipe lines or units radiating heat in the vicinity of the compres-
sor, or insulate them well.
– Never install the compressor in the cooling air flow of other machines.
– Provide the supply air openings with adjustable louvres to ensure that
temperatures do not go below the minimum temperature in winter.
– Use the anti-freeze function (only in "ready for operation" mode).
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