Daikin EKHHP300AA2V3 Installation And Operating Instructions Manual

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Installation and operating instructions6DAIKIN EKHHP(3/5)00AA2V3DAIKIN Hot water heat pump008.1423444_05 – 08/20162 x SafetyInformation on the installation site of other com-ponents can be found in the associated docu-mentation supplied with them.2.4.5 Sanitary connection● You must comply with:– EN 1717 - Protection of domestic waterfrom contamination in domestic waterinstallations and general requirements con-cerning safety equipment for the preventionof domestic water contamination by back-flow– EN 806 - Technical regulations for domes-tic water installations (TRWI)– and, as a supplement, the country-specificlegal requirements.A safety valve must be fitted in the domesticwater feed to the DAIKIN EKHHP. There shouldbe no isolating fitting between the safety valveand the DAIKIN EKHHP.Any steam or heating water which may escapemust be diverted by a suitable blow-off line withconstant gradient in a frost-protected, safe andobservable manner.The storage tank temperature can exceed 60 °Cif you connect a solar system.● For this reason you should fit scaldingprotection (e.g. VTA32 + Verschraubungsset1") during installation.2.4.6 Requirements for the depressurisedstorage tank waterObserve the current technological regulations toprevent corrosion products and deposits.Minimum requirements regarding the qualityof filling and supplementary water:– Water hardness (calcium and magnesium,calculated as calcium carbonate):≤ 3 mmol/l– Conductivity: ≤ 1500 (ideal: ≤ 100) μS/cm– Chloride: ≤ 250 mg/l– Sulphate: ≤ 250 mg/l– pH value: 6,5 - 8,5Using filling water and top-up water which doesnot meet the stated quality requirements cancause a considerably reduced service life of theequipment. The responsibility for this lies solelywith the operator.2.4.7 OperationThe DAIKIN EKHHP● Do not operate until all installation andconnection work is completed.● Only operate with a completely full storagetank (level indicator).● Only connect with a pressure reducer on theexternal water supply (supply line).● Only operate the with the specified quantity ofcoolant and the type of coolant specified.● only operate if the protective cover is installed.The specified servicing intervals should be ad-hered to and inspection work must be carriedout.2.4.8 Instructing the user/owner● Before you hand over the DAIKIN EKHHP,explain to the user/owner how to operate andcheck the system.● Provide the operator with the technicaldocumentation (this documentation and all itsreferences) and indicate that thesedocuments must be available in theimmediate vicinity of the unit at all times.● Document the hand-over.The domestic water quality must complywith the EU Guideline 98/83 EC and theregionaly-applicable regulations.If an optional external heat generator isconnected via the corrugated pipe heatexchanger of the EKHHP500AA2V3,these minimum requirements also apply for thefilling and topping-up water of this heatingcircuit.