www.lennoxemea.com
e-MovAir-IOM-20.04-EN
9
INTRODUCTION
• Attention: The high-pressure safety switches are essential elements which guarantee the
system remains within the admissible operating limits. Before switching on the installation,
always ensure all electrical connections are correct on these elements which are used to
isolate the electrical power supply to the compressor(s) they protect. Carry out a test to
ensure the electrical power supply is effectively isolated when the pressure switch attains
its set value.
• In case of installation in a seismic zone or in a zone which may be effected by violent
natural occurrences such as storms, tornados, floods, tidal waves, etc.…, the installer and/
or operator will refer to valid standards and regulations in order to ensure the devices
required are available as our units are not designed to operate under such conditions
without prior precautions.
• The equipment is not designed to resist fire. The installation site will therefore have to
respect valid standards with regard to protection against fire (emergency instructions,
map…).
• In case of exposure to corrosive external atmospheres or products, the installer and/or
operator shall take the necessary precautions to avoid damage to the equipment and
will make sure the equipment provided has the necessary and sufficient anti-corrosion
protection.
• To respect a sufficient number of supports for the piping according to their size and
weight under operating conditions and to design the piping to avoid a water hammer
phenomenon
• For technical reasons, it is not possible to carry out hydrostatic tests on all our units so
leak tests are carried out as a compensatory measure. (The entire circuit is checked using
leak detectors). For machines charged with refrigerant, at the end of the test, an HP test
is carried out in the factory to make sure the pressure switch is working properly.
• Before any work is carried out on the refrigeration circuit, the dry air or nitrogen pressure
our units are supplied with must be released (For units not charged with refrigerant in the
factory.)
• The emissions of refrigerant via the safety relief valves must be channeled to the exterior
of the machine room. The outlet relief valve will have to be sized in compliance with
EN13136.
• Installation and maintenance of these machines must be carried out by personnel qualified
to work on refrigeration equipment.
• All interventions must be carried out in conformity with valid safety regulations (e. g.: EN
378), as well as the recommendations indicated on the labels and handbooks provided
with the machine. All actions shall be taken to avoid access of unauthorized persons.
• It is essential that any pipework or other components of the refrigeration circuit hazardous
to people because of their surface temperature are insulated or identified.
• Ensure that the installation zone (room or area) of the machine has restricted access and
ensure the good condition of the covering.
