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GUIDES
Guides.
Reference for choosing, ordering and installing copper pipe for AC and refrigeration work, from the Refrigeration Centre counter in Parrys, Chennai.
Liquid and gas line sizes for 1, 1.5 and 2 ton split ACs, R32 and R410A wall thickness, pipe length limits, VRF piping and reusing R22 lines.
A weight calculator for any size in mm or inches, weight per metre for 1/4″ to 2-1/8″, SWG gauge to mm, and outside and inside diameters.
Which brazing rod to use, preparing the joint, nitrogen purge, heating, protecting valves, safety, and pressure testing and evacuation.
Plain definitions of 52 terms used in copper pipe, AC piping, brazing, refrigerants and insulation, from ACR and SWG to A2L and GWP.
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