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REFNET Pipe System
EDUS30-900-N
6
Installation of Outdoor Units
3.3
Field Refrigerant Piping
3.3.1
Heat Pump Series
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 or more (depending on National or Local Code)
Heat resistance: Be sure to use insulation that is designed for use with HVAC Systems.
3.3.2
Heat Recovery Series
Suction, Discharge Gas piping, liquid piping must be insulated.
Example of thermal insulation work.
Insulation of both liquid and gas pipe
3 piping section (between outdoor unit and BS unit)
2 piping section (between BS unit and indoor unit)
Summary of Contents for RWEYQ72
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Page 17: ...REFNET Pipe System EDUS30 900 N 16 Installation of Outdoor Units 3P161697D...
Page 21: ...REFNET Pipe System EDUS30 900 N 20 Installation of Outdoor Units C 3P113151C 7 8 1 1 1 8...
Page 23: ...REFNET Pipe System EDUS30 900 N 22 Installation of Outdoor Units C 3P113623C 7 8 1 1 1 8...
Page 25: ...REFNET Pipe System EDUS30 900 N 24 Installation of Outdoor Units 3P185500...
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