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NT 1401-W00 04 23 Direct drive package LS-DDNC e
2. INSTALLATION (continued)
2.3 At succion
It must be installed in such a way that the temperature
of the air sucked in is equivalent to 5°C either side of
ambient temperature.
Any side protection barriers must be removed EACH
time the compressor is used yo allow air to reach the
compressor inlet freely, and move around the cooling cir-
cuit.
The installer must check whether there are such protec-
tive barriers and that they may be manipulated easily by
the driver. It may be desirable to install a system preven-
ting the operation of the PTO if the protection is not
removed, to guarantee that the compressor operates
under satisfactory conditions.
To prevent the filters from clogging prematurely, the air suc-
ked in must be free of smoke and road dust.
A minimum distance of 300 mm must be left free in front
of the filters for their extraction and replacement.
2.4 Safety valve / Check relief
LS-DDNC packages include a safety valve and a check
valve.
See Instructions 1401-E00 MISTRAL - B600 - TYPHON II
CHECK AND RELIEF VALVE.
In the Low Space package case, connexion pressure
drop has to be considered.
The 2 possible setting values are :
• 2 bar (2,3 bar at the compressor)
• 2,3 bar (2,5 bar at the compressor).
The maximum valve setting is 2,3 bar, but it must take
into account the rotating speed range specified in the
compressor instructions.
2.5 Drive
2.5.1 Speed range
In order to comply with the machine directive, the rota-
ting parts of the compressor package (shafts, torque
limiter, universal joint, PTO … ) must not be accessible
to the user or the driver under normal conditions. If
necessary, it is the installer’s responsibility to fit the
necessary protection for preventing any damage to
equipment or physical injury.
MOUVEX cannot be held responsible for consequences
due to the absence of such protection on the final instal-
lation.
The compressor may be operated directly by a universal
joint shaft, with or without a multiplier.
The selection of the drive mode will take into account :
• The compressor mounting configuration
• The driving shaft rotation direction
• The expected power requirement for the given applica-
tion
• The acceptable rpm range for the driving equipment
• The acceptable rpm range for the compressor.
The use of compressors outside of their operating speed
range can lead to property damage or serious injuries.
See Compressor instructions for more details.
IMPORTANT :
Any system providing for a compressor being driven
by a thermal motor must include a system making it
possible to disengage the compressor at startup and
stop of the motor.
In all cases, the drive must make it possible :
• To maintain the compressor rotation speed during load
variations (pressure variations) .
• Not to subject the compressor to sudden or insuffi-
cient starts.
2.5.2 PTO shaft drive
It is mandatory to comply with the following instructions :
• The shaft must be dynamically balanced.
• Its length and its inclination must be as small as pos-
sible, see table
• The drive shaft slides perfectly well during rotation.
• The jaws of the universal joints are parallel.
• Coupling flanges show no eccentricity nor warping of
the bearing surface.
• The angle formed by the universal joint and the drive
shaft must not exceed 15°.
• The compressor shaft must be parallel to that of the
drive shaft.
• The universal joint angle, as defined below, must ne
minimised.
CAUTION
WARNING
THE USE OF A PACKAGE AT PRESSU-
RES GREATER THAN THOSE RECOM-
MENDED MAY CAUSE DAMAGE TO
EQUIPMENT OR SERIOUS INJURY.
Hazardous pressure
can cause
personal injury
or property damage.