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For these checks national regulations must be followed. If
the national regulation does not specify any details, refer
to standard EN 378 as follows:
external visual installation checks:
•
Compare the complete installation with the refrigeration
system and power circuit diagrams.
•
Check that all components comply with the design
specifications.
•
Check that all protection documents and equipment
provided by the manufacturer (dimensional drawings,
P&ID, declarations, etc.) to comply with the regulations
are present.
•
Verify that the environmental safety and protection
devices and arrangements provided by the manufacturer
to comply with the regulations are in place.
•
Verify that all documents for pressure containers, certifi-
cates, name plates, files, instruction manuals provided
by the manufacturer to comply with the regulations
are present.
•
Verify the free passage of access and safety routes.
•
Check that ventilation in the plant room is adequate.
•
Check that refrigerant detectors are present.
•
Verify the instructions and directives to prevent the
venting removal of refrigerant gases that are harmful to
the environment.
•
Verify the installation of connections.
•
Verify the supports and fixing elements (materials,
routing and connection).
•
Verify the quality of welds and other joints.
•
Check the protection against mechanical damage.
•
Check the protection against heat.
•
Check the protection of moving parts.
•
Verify the accessibility for maintenance or repair and
to check the piping.
•
Verify the status of the valves.
•
Verify the quality of the thermal insulation and of the
vapour barriers.
2.3 - actual start-up
Never be tempted to start the chiller without reading fully,
and understanding, the operating instructions and without
having carried out the following pre-start checks:
•
Check the chilled water circulation pumps, the air
handling equipment and any other device connected
to the evaporator.
•
Refer to the manufacturer instructions.
•
Refer to the electrical diagram delivered with the unit.
•
Ensure that there is no refrigerant leak.
•
Check the tightening of fixing clamps of all pipes.
•
Check the power supply at the main connection point
and the order of phases.
•
Check the correct operation of the heaters and check
that they are correctly energised.
WARNING: Commissioning and start-up of the chiller
must be supervised by a qualified refrigeration engineer.
•
Start-up and operating tests must be carried out with
a thermal load applied and water circulation in the
evaporator.
•
All set-point adjustments and control tests must be
carried out before the unit is started up.
•
Refer to the Service guide 30XAV-ZE.
Proceed with the unit commissioning.
Ensure that all safety devices are operational, especially
that the high pressure switches are functioning and that
any alarms have been acknowledged and corrected.
NOTE: If the Carrier instructions (power and water
connections and installation) are not observed, the
Carrier warranty becomes invalid.