Carrier AquaSnap Touch Pilot Junior Series - 2 Moving and Siting the Unit; Moving; Siting the Unit; Checks before System Start-Up

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2 - MOVING AND SITING THE UNIT
2.1 - Moving
See chapter 1.3 - “Installation safety considerations”.
2.2 - Siting the unit
The machine must be installed in a place that is not accessible to
the public or protected against access by non-authorised persons.
In case of extra-high units the machine environment must
permit easy access for maintenance operations.
Always refer to the chapter “Dimensions and clearances” to
conrm that there is adequate space for all connections and
service operations. For the centre of gravity coordinates, the
position of the unit mounting holes, and the weight
distribution points, refer to the certied dimensional drawing
supplied with the unit.
Typical applications of these units do not require earthquake
resistance. Earthquake resistance has not been veried.
CAUTION: Only use slings at the designated lifting points
which are marked on the unit.
Before siting the unit check that:
• the permitted loading at the site is adequate or that
appropriate strenghtening measures have been taken.
• if the unit has to operate as a heat pump in temperatures
below 0°C it must be raised at least 300 mm from the
ground. This is necessary to avoid ice build-up on the unit
chassis and also to permit correct unit operation in locations
where the snow level may reach this height.
• 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 ow and to
ensure access to the components (see dimensional
drawings).
• the number of support points is adequate and that they are
in the right places.
• the location is not subject to ooding.
• 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.
Bafes may be necessary to deect strong winds. They
must not restrict air ow into the unit.
CAUTION: Before lifting the unit, check that all casing panels
aresecurelyxedinplace.Liftandsetdowntheunitwith
great care. Tilting and jarring can damage the unit and impair
unit operation.
If 30RQS/RQSY units are hoisted with rigging, it is advisable to
protect coils against crushing while a unit is being moved. Use
struts or a lifting beam 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.
2.3 - Checks before system start-up
Before the start-up of the refrigeration system, the complete
installation, including the refrigeration system must be veried
against the installation drawings, dimensional drawings, system
piping and instrumentation diagrams and the wiring diagrams.
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:
• Ensure that the machine is charged with refrigerant. Verify
on the unit nameplate that the ‘uid being transported’ is
R-410A and is not nitrogen.
• Compare the complete installation with the refrigeration
system and power circuit diagrams.
• Check that all components comply with the design
specications.
• 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 and
devices and arrangements provided by the manufacturer
to comply with the regulations are in place.
• Verify that all documents for pressure containers, certi-
cates, name plates, les, instruction manuals provided by
the manufacturer to comply with the regulations are present.
• Verify the free passage of access and safety routes.
• Verify the instructions and directives to prevent the
deliberate removal of refrigerant gases.
• Verify the installation of connections.
• Verify the supports and xing 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.
• Ensure that the ventilation in the machine room is sufcient.
• Check the refrigerant detectors.