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CAUTION: Only use slings at the designated lifting points which are marked on the unit.
During the installation test national regulations must be followed. If no national regulation exists, paragraph 9-5 of standard
EN 378-2 can be used as a guide.
Before siting the unit check that:
• the permitted loading at the site is adequate or that appropriate strengthening measures have been taken.
• the unit is installed level on an even surface (maximum tolerance is 5 mm in both axes).
• there is adequate space above the unit for air flow and to ensure access to the components.
• the number of support points is adequate and that they are in the right places.
• the location is not subject to flooding.
• for outdoor installations, where heavy snowfall is likely and long periods of sub-zero temperatures are normal, provision has
to be made to prevent snow accumulating by raising the unit above the height of drifts normally experienced.
• Baffles may be necessary to deflect strong winds. They must not restrict air flow into the unit.
CAUTION: Before lifting the unit, check that all casing panels are securely fixed in place. Lift and set down the unit with
great care. Tilting and jarring can damage the unit and impair unit operation.
If 30XQ units are hoisted with rigging, it is advisable to protect coils against crushing while a unit is being moved. Use struts
or spreader bar to spread the slings above the unit. Do not tilt a unit more than 15° .
WARNING: Never push or lever on any of the enclosure panels of the unit. Only the base of the unit frame is designed to
withstand such stresses.
Checks before system start-up
Before the start-up of the refrigeration system, the complete installation, including the refrigeration system must be verified
against the installation drawings, dimensional drawings, system piping and instrumentation diagrams and the wiring diagrams.
During the installation test national regulations must be followed. If no national regulation exists, paragraph 9-5 of standard
EN 378-2 can be used as a guide.
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 safety documents and equipments that are required by current standards are present.
• Verify that all safety and environmental protection devices and arrangements are in place and comply with the current
standard.
• Verify that all relevant documents for pressure vessels (certificates, name plates, files, instruction manuals etc.) required by
the current standards 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 deliberate 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.
Carrier Yileng - Shanghai, China
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