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This product cannot be connected to a solar water heater. The piping must be insulated with MINIMUM 3⁄4” to 1” closed cell insulation. Self Regulating Heat tape (35-58W per foot) must be installed on both Water Lines to the Heat Pump to protect the water piping in areas with design temperatures below 27°F. If the piping needs brazing, make sure that all flux and flux splatter is wiped away with a wet cloth. When brazing, ensure connections are protected using a wet cloth. As the hot-water supply pipe will expand and contract, use sleeves when penetrating through concrete walls or slabs. With buried piping, an outer cover will need to be used that has had both ends sealed to avoid any ingress of rain. Use only heat-resistant and corrosive-resistant material to seal the pipe joints. Cutting and wrenching the piping material may result in oil and dust adhering to it. After processing, clean the material with a mild detergent before doing any piping work and smooth the edges to remove any scratches and burrs. (After flowing water through it verify whether any debris has accumulated on the filter of the faucet and heat pump unit pipe.) When using PTFE sealing tape, ensure that no tape is sticking out of the threads. Any heat-resistant PVC piping use is NOT recommended due to high outlet water temperature for between the heat pump and the tank as well as the tank and the mixing valve. Follow the manufacturer’s instruction manual for the type of bond, amount to be applied, curing time, and other specifications. If any bond or flux has entered the tank unit and the hot water has a chemical/acrid smell, take the following countermeasures. a) After heating the water in the tank unit, drain it and clean inside the tank unit. Fill the tank unit with 26 gallons (100 litres) of water and exchange twice. b) Cleanorchangethefilter. c) Fillupthetankunit. d) Drainwaterfromthereliefvalveforonetotwominutes. e) Runwaterfromallthehotwatersupplyfaucetsinthehouseforabouttenminutes to clean inside the pipes. Sanden Heat Pump – Installation Manual SANCO2 Heat Pump – Installation Manual Page 8 of 40 Page 8 of 44PDF Image | SANCO2 Heat Pump Water Heater R744
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