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26 5.0 Toolkit It is essential that heat pump installation is carried out by a trained installer using the correct array of tools and equipment. The following lists the essential tools and equipment that are needed to successfully carry out the installation work. Equipment/materials ❏❏ Copper pipe: – hard/soft-drawn (using hard-drawn is considered best practice because it is less likely to deflect or sag over time when compared to soft-drawn) – twin-insulated dehydrated ❏❏ Pipe insulation ❏❏ Brazing equipment ❏❏ Set of standard hand tools ❏❏ Pipe benders for each size of pipe being used ❏❏ Electrical cable ❏❏ De-burring tool ❏❏ Swaging set ❏❏ Flaring tools – correct tool for pipe diameter and wall thickness is required ❏❏ Oil (for flared joints – must be compatible with refrigerant) ❏❏ Wrenches ❏❏ Torque wrenches ❏❏ 120 x 25 x 0.5 mm galvanised mild steel (gms) straps ❏❏ 65 mm gms diameter pipe brackets ❏❏ 30 mm gms nails ❏❏ Condensate drainage pipe: – smooth, hard, PVC (best practice option) – flexible, ribbed ❏❏ Vinyl tape ❏❏ Electrical conduit ❏❏ Pipe cutters ❏❏ Electronic scales ❏❏ Digital thermometer ❏❏ Oxygen free nitrogen gas cylinder with pressure gauge and manifold valve and flexible clear hose ❏❏ Leak testing solution ❏❏ Electronic leak tester (as back-up to leak testing solution) ❏❏ Vacuum pump with backflow prevention device ❏❏ Manifold set ❏❏ Hose adaptors ❏❏ Auto ignition gas torch ❏❏ Specific vacuum gauge ❏❏ Valve-core removal tool (8 mm (5/16") UNC for R-410A refrigerant) ❏❏ Tape measure ❏❏ Gas cylinder with refrigerant ❏❏ Charge hose and connector ❏❏ Charge valve (prevents gas from coming out of charge hose and unit when hose is removed) ❏❏ Compression or locked-ring jointing tool ❏❏ Recovery cylinder ❏❏ Safety glasses, gloves and ear protectionPDF Image | Heat pump installation Good Practice Guide
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