Title: Brukermanual for Refra varmepumpe.pdf
Installation of pipeline system All pipes are marked so that they can be connected correctly. Connecting them incorrectly is dangerous. Connecting pipes must be fixed in such a way that forces and movement from the pipework are not transferred to the unit.Piping systems of the evaporator and condenser must be equipped with: - Expansion tank - filter - Air lifting valve - Safety valves - Drain valves - System filling valves.Water piping InstallationIs important: - All piping that connects to the water supply must be installed by a licensed plumber. - The water supplied to the system must comply with the potable water quality standard. - Use of water that does not comply with this standard could result in a malfunction of the system.DescriptionMaximum LevelsPH6,0 to 9,0TDS (Total Dissolved Solids) Up to 500 ppmTotal Hardness Up to 200ppm or 12 grains hardnessAluminiumUp to 0,2 ppmChloridesUp to 200 ppmCopperUp to 1,0 ppmIronUp to 0,3 ppmManganeseUp to 0,05 ppmZinc