Karcher HD 7-250 De Tr1 - Manual (Page 67)

Aufstellung.pm6.5 - GB
Page 3.3
Installation
BOGE Operating instructions for CM 9 series screw compressor module
Ventilation
3.2 Compressor room
Admissible
environmental
influences The compressor room must be clean, dry, cool and free of dust.
Admissible ambient temperatures
Maximum ambient temperature (for air cooling): + 40°C
Minimum ambient temperature:
+ 5°C
ATTENTION!
Nonobservance of the admissible ambient temperature may lead to the
following problems:
– In case of excessive temperatures the compressor switches off (the
safety shutdown logics has to be supplied by the customer). There
is a fire risk in case of a failure of the safety shutdown controlled by
the temperature sensor.
– Pipe lines and valves will freeze up at low temperatures.
– Damage due to reduced lubricating ability of the compressor oil.
Measures to be taken to ensure that admissible ambient temperatures
are observed:
– Avoid any pipe lines or units radiating heat in the vicinity of the compressor,
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 the
minimum temperature is not gone below in winter.
If the following instructions are not observed, the admissible final com-
pression temperature may be exceeded.
In this case, the compressor will switch off automatically.
ATTENTION!
Arrange the compressor intake openings or ducts such, that dangerous ad-
mixtures (e.g. explosive or chemically unstable materials) cannot be drawn in.
If the oil of the CM 9-Module is cooled with air subject to the ambient tem-
perature, precautions have to be taken to extract the heated air from the
compressor room.