Carrier AquaSnap 61WG Series - Page 10

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2 - PRELIMINARY CHECKS
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 transported’ is R410A and is not
nitrogen.
- Compare the complete installation with the refrigera-tion 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.
- 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 xing elements (materials, routing and connection).
- Verify the quality of welds and other joints.
- Check the protection against mechanical damage.
- 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 position of the condensate drain piping allows draining and that the connections are correct for the water used.
- Avoid common routing of the customer power wiring and other machine wiring, especially for longer runs (> 200 mm).