Table of Contents
Advertisement
INTRODUCTION
For units covered by the Pressure Equipment Directive (see EU Declaration of Conformity).
!
Warning:
1.
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.
2.
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.
3.
The equipment is not designed to resist fire. The installation site will therefore have to respect valid standards
about protection against fire (emergency instructions, map...).
4.
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.
5.
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
6.
For technical reasons, it is not possible to carry out hydrostatic tests on all our units. Our rooftops are
hermetically sealed products according to the definition of the F-Gas directive and certain local regulations such
as CH35 in France. 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
7.
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.)
8.
If a valve is fitted, the emissions of refrigerant via the safety relief valves must be directed to the outside, to a
place free of ignition sources, fresh air intake and human presence.. The valve should be sized and connected
in compliance with current standards.
9.
Installation and maintenance of these machines must be carried out by personnel qualified to work on
refrigeration equipment.
10. 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.
11. 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.
12. Ensure that the installation zone (room or area) of the machine has restricted access and ensure the good
condition of the covering.
Main Safety Recommendations
All work on the unit must be carried out by a qualified and authorised employee.
Non-compliance with the following instructions may result in injury or serious accidents.
Work on the unit:
The risk analyses of our machines are carried out considering operation in a standard environment with unpolluted air. For other
applications, which do not meet this criterion (Kitchen, industry, ...) please contact your local sales representative.
•
The unit shall be isolated from the electrical supply by disconnection and locking using the main isolating switch.
•
Workers shall wear the appropriate personal protective equipment (helmet, gloves, glasses, etc.).
Work on the electrical system:
• Work on electric components shall be performed with the power off (see below) by employees having valid electrical qualification
and authorisation.
Work on the refrigerating circuit(s):
•
Monitoring of the pressures, draining and filling of the system under pressure shall be carried out using equipment designed for
this purpose and suitable for the refrigerant contained in the rooftop.
•
To prevent the risk of explosion due to spraying of coolant and oil, the relevant circuit shall be drained and at zero pressure
before any disassembly or unbracing of the refrigerating parts takes place.
•
There is a residual risk of pressure build-up by degassing the oil or by heating the exchangers after the circuit has been
drained. Zero pressure shall be maintained by venting the drain connection to the atmosphere on the low-pressure side.
•
The brazing shall be carried out by a qualified brazier. The brazing shall comply with standard EN1044 AG107 (minimum 30%
silver).
eNeRGy-IOM-2020.12-EN
•
•
10
Hide quick links:
Advertisement
Table of Contents
