Table of Contents
Advertisement
4
OPERATION
Operator's responsibilities
4.1
It is essential that the operator is appropriately trained and becomes familiar with the system before operating the unit. In
addition to reading this manual, the operator must study the microprocessor operating manual and the wiring diagram in
order to understand start-up sequence, operation, shutdown sequence and operation of all the safety devices.
During the unit's initial start-up phase, a technician authorized by the manufacturer is available to answer any questions
and to give instructions as to the correct operating procedures.
The operator must keep a record of operating data for every installed unit. Another record should also be kept of all the
periodical maintenance and servicing activities.
If the operator notes abnormal or unusual operating conditions, he is advised to consult the technical service authorized
by the manufacturer.
5
MAINTENANCE
5.1
Routine maintenance
This unit must be maintained by qualified technicians. Before beginning any work on the system the personnel shall assure
that all security precautions have been taken.
Neglecting unit maintenance in these environments, could degrade all parts of the units (coils, compressors, frames, pipes,
etc..) with negative effect on performances and functionality.
There are two different levels of maintenance, which can be chosen according to the type of application (critical/non critical)
or to the installation environment (highly aggressive).
Examples of critical applications are process cooling, data centres, etc.
Highly Aggressive Environments can be defined as the follows:
•
Industrial environment (with possible concentration of fumes result of combustion and chemical process)
•
Costal environment;
•
Highly polluted urban environment;
•
Rural environment close to of animal excrement and fertilizers, and high concentration of exhaust gas from diesel
generators.
•
Desert areas with risk of sandstorms;
•
Combinations of the above
Table 2 lists all Maintenance activities for standard applications and standard environment.
Table 3 lists all Maintenance activities for critical applications or highly aggressive environment.
Following below instructions is mandatory for cases listed above, but also advised for units installed in standard
environments.
D–EIMHP01201-18_06EN - 21/27
Advertisement
Table of Contents
