92.2 - Moving and siting the unit2.2.1 - MovingSee chapter 1.1 “Installation safety considerations”.CAUTION: Only use slings at the designated liftingpoints which are marked on the unit.2.2.2 - Siting the unitAlways refer to the chapter “Dimensions and clearances”to confirm that there is adequate space for all connectionsand service operations. For the centre of gravity coordinates,the position of the unit mounting holes, and the weightdistribution points, refer to the certified dimensionaldrawing supplied with the unit.Typical applications of these units are in refrigerationsystems, and they do not require earthquake resistance.Earthquake resistance has not been verified.Before siting the unit check that:• the permitted loading at the site is adequate or thatappropriate strenghtening measures have been taken.• the unit is installed level on an even surface (maximumtolerance is 5 mm in both axes).• there is adequate space above the unit for air flow andto ensure access to the components.• the number of support points is adequate and that theyare in the right places.• the location is not subject to flooding.CAUTION: Lift and set down the unit with great care.Tilting and jarring can damage the unit and impair unitoperation.2.2.3 - Checks before system start-upBefore the start-up of the refrigeration system, the completeinstallation, including the refrigeration system must beverified against the installation drawings, dimensionaldrawings, system piping and instrumentation diagrams andthe wiring diagrams.During the installation test national regulations must befollowed. If no national regulation exists, standard EN 378can be used as a guide.External visual installation checks:• Ensure that the machine is charged with refrigerant.Verify on the unit nameplate that the ‘fluid beingtransported’ is R-134a and is not nitrogen.• Compare the complete installation with the refrigerationsystem and power circuit diagrams.• Check that all components comply with the designspecifications.• Check that all protection documents and equipmentprovided by the manufacturer (dimensional drawings,P&ID, declarations etc.) to comply with the regulationsare present.• Verify that the environmental safety and protection anddevices and arrangements provided by the manufacturerto comply with the regulations are in place.• Verify that all document for pressure containers, certi-ficates, name plates, files, instruction manuals providedby the manufacturer to comply with the regulations arepresent.• 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 thedeliberate removal of refrigerant gases that are harmfulto 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 andto check the piping.• Verify the status of the valves.• Verify the quality of the thermal insulation and of thevapour barriers.