Daikin EWLQ025KCW1N, Инструкция по установке, эксплуатации и обслуживанию

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D-EIMHP01601-22_01EN 9/26
8 SELECTION OF PIPING MATERIAL
1. Foreign materials inside pipes (including oils for fabrication) must be 30 mg/10 m or less.
2. Use the following material specification for refrigerant piping:
- construction material: Phosphoric acid deoxidized seamless copper for refrigerant.
- size: Determine the proper size referring to "Technical specifications
”.
- the pipe thickness of the refrigerant piping must comply with relevant local and national regulations. For
R410A
the design
pressure is
4.17 MPa.
3. In case the required pipe sizes (inch sizes) are not available, it is also allowed to use other diameters (mm sizes), taken the
following into account:
- select the pipe size nearest to the required size.
- use the suitable adapters for the change-over from inch to mm pipes (field supply).
For the
RLK
regulation the flare nuts on the stop valves must be replaced by flare solder connections.