Daikin RXYMQ36MVJU Instruction Manual download pdf (Page 5)

REFNET Pipe System EDUS39-606A-N

4 Installation of Outdoor Units

2.2 Field Refrigerant Piping

1. The following materials should be used for all refrigerant piping.

 Materials: Deoxidized phosphorous seamless copper pipe or equivalent

2. The tips for insulation

 Both Gas, Liquid piping must be insulated.

 Materials: Glass fiber or heat-resistant polyethylene foam.

Thickness: 1/2 inch (12.7 mm) or more

Heat resistance: Gas pipe : 250°F or more / Liquid pipe : 160°F or more

 Insulation of single pipe only  Insulation of both liquid and gas pipe

2.3 REFNET Joints and Headers

2.3.1 REFNET Joints

For gas and liquid branch pipes

 Make sure that all branch pipes are fitted such that they branch either horizontally or vertically.

 When the size of the selected field piping is different from that of branch pipe then the connecting section should be

cut with a pipe cutter as shown in the following figure.

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Daikin RXYMQ36MVJU Instruction Manual Page 5