Daikin Altherma EHY2KOMB28AA Installation And Operation Manual

Also see for Altherma EHY2KOMB28AA: User reference guide Installer's reference guide

Daikin Altherma EHY2KOMB28AA Installation And Operation Manual Manual pdf 5 page image

3 General safety precautionsInstallation and operation manual5EHY2KOMB28+32AADaikin Altherma hybrid monobloc – Gas boiler module4P538953-1 – 2018.06▪ In places where there is machinery that emits electromagneticwaves. Electromagnetic waves may disturb the control system,and cause malfunction of the equipment.▪ In places where there is a risk of fire due to the leakage offlammable gases (example: thinner or gasoline), carbon fibre,ignitable dust.▪ In places where corrosive gas (example: sulphurous acid gas) isproduced. Corrosion of copper pipes or soldered parts may causethe refrigerant to leak.▪ In bathrooms.▪ In places where frost is possible. The ambient temperature aroundthe gas boiler should be >5°C.3.2.3 WaterIf applicable. See the installation manual or installer reference guideof your application for more information.NOTICEMake sure water quality complies with EU directive98/83 EC.Avoid damages caused by deposits and corrosion. To preventcorrosion products and deposits, observe the applicable regulationsof technology.Measures for desalination, softening or hardness stabilization arenecessary if the filling and top-up water have a high total hardness(>3 mmol/l–sum of the calcium and magnesium concentrations,calculated as calcium carbonate).Using filling water and top-up water which does NOT meet the statedquality requirements can cause a considerably reduced service lifeof the equipment. The responsibility for this is entirely that of theuser.3.2.4 ElectricalDANGER: RISK OF ELECTROCUTION▪ Turn OFF all power supply before removing theswitch box cover, connecting electrical wiring ortouching electrical parts.▪ Disconnect the power supply for more than 1 minute,and measure the voltage at the terminals of main circuitcapacitors or electrical components before servicing.The voltage MUST be less than 50 V DC before youcan touch electrical components. For the location of theterminals, see the wiring diagram.▪ Do NOT touch electrical components with wet hands.▪ Do NOT leave the unit unattended when the servicecover is removed.WARNINGIf NOT factory installed, a main switch or other means fordisconnection, having a contact separation in all polesproviding full disconnection under overvoltage category IIIcondition, MUST be installed in the fixed wiring.WARNING▪ ONLY use copper wires.▪ Make sure the field wiring complies with the applicablelegislation.▪ All field wiring MUST be performed in accordance withthe wiring diagram supplied with the product.▪ NEVER squeeze bundled cables and make sure theydo NOT come in contact with the piping and sharpedges. Make sure no external pressure is applied to theterminal connections.▪ Make sure to install earth wiring. Do NOT earth the unitto a utility pipe, surge absorber, or telephone earth.Incomplete earth may cause electrical shock.▪ Make sure to use a dedicated power circuit. NEVERuse a power supply shared by another appliance.▪ Make sure to install the required fuses or circuitbreakers.▪ Make sure to install an earth leakage protector. Failureto do so may cause electric shock or fire.▪ When installing the earth leakage protector, make sureit is compatible with the inverter (resistant to highfrequency electric noise) to avoid unnecessary openingof the earth leakage protector.CAUTIONWhen connecting the power supply, the earth connectionmust be made before the current-carrying connections areestablished. When disconnecting the power supply, thecurrent-carrying connections must be separated before theearth connection is. The length of the conductors betweenthe power supply stress relief and the terminal block itselfmust be as such that the current-carrying wires aretautened before the earth wire is in case the power supplyis pulled loose from the stress relief.NOTICEPrecautions when laying power wiring:▪ Do NOT connect wiring of different thicknesses to thepower terminal block (slack in the power wiring maycause abnormal heat).▪ When connecting wiring which is the same thickness,do as shown in the figure above.▪ For wiring, use the designated power wire and connectfirmly, then secure to prevent outside pressure beingexerted on the terminal board.▪ Use an appropriate screwdriver for tightening theterminal screws. A screwdriver with a small head willdamage the head and make proper tighteningimpossible.▪ Over-tightening the terminal screws may break them.Install power cables at least 1 metre away from televisions or radiosto prevent interference. Depending on the radio waves, a distance of1 metre may not be sufficient.