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6 months ago

NUOS Plus - User Manual

  • Text
  • Appliance
  • Heater
  • Heating
  • Installation
  • Operating
  • Discharge
  • Maintenance
  • Electrical
  • Technical
  • Regulations
  • Nuos
  • Manual

Heat pump water heater -

Heat pump water heater - TECHNICAL INFORMATION FOR INSTALLERS PERMANENT ELECTRICAL CONNECTION 230 V Mono 230 V Mono L N EDF BUS 230V ON OFF N N Use this configuration whenever users do not have a two-tier electricity rate. The water heater will always be connected to the power supply network to ensure 24h operation. 3G min. 1.5 mm 2 H05RN-F AUXILIARY CONNECTION • If you have an FV system to be connected or an available SG signal, you can connect a bipolar cable from the inverter or the SG signal cable (one in alternative to the other) to the electrical box on the right hand side of the product (secure the cable into the dedicated cabling sheath). Connect said cable (C) to the “SIG2” connector and enable the PV (P9) or SG (P18) function on the installer's menu (see paragraph 7.7). Caution: 230 V signal. • Only for 250I version, if you have an auxiliary heat generator (boiler) and you want to replace the integration performed by the heating element with it, you can connect a bipolar cable (D) from the heat generator (if enabled) to the electrical box on the right hand side of the product (secure the cable into the dedicated cabling sheath). Connect the cable to the “AUX” connector and set the P8 parameter on 3 via the installer's menu (see paragraph 7.7). In the event of connection of 250I version to the boiler/stove, it is advisable to use sensor slot S2. 5. INITIAL START-UP Once the appliance is connected to the hydraulic and electric systems, the water heater must be filled with water from the domestic water supply network. In order to fill the water heater, it is necessary to open the central tap of the domestic network supply and the nearest hot water tap, while making sure that all the air in the tank is gradually expelled. The product is not supplied with batteries. In the event of installation with batteries, use 4 type NiMh, AA, 1.2V, 2100 mAh minimum, rechargeable batteries with a minimum of 1000 recharging cycles and a minimum operating temperature of 65°C (it is suggested use batteries supplied from the manufacturer's catalogue). These should be inserted carefully observing the correct polarity, in the special seat inside the front casing that is accessible by removing only the external frame (refert o par. 7.1). The appliance will automatically recharge them. 19

6. WARNINGS 6.1 Initial start-up Heat pump water heater - OPERATING AND MAINTENANCE INSTRUCTIONS FOR THE USER OPERATING AND MAINTENANCE INSTRUCTIONS FOR THE USER WARNING! The installation and initial start-up of the appliance must be performed by qualified personnel in compliance with the national regulations in force regarding installation, and in conformity with any regulations issued by local authorities and public health bodies. In all cases, the company performing the work must carry out checks to verify the safety and correct operation of the entire system. Before starting the water heater, check that the installer has completed all of his operations. Make sure you fully understand the installer's explanations on operation of the water heater and correct performance of the appliance's main operations. 6.2 Recommendations In the event of a malfunction and/or faulty operation, turn the appliance off and do not attempt any repairs, but contact qualified personnel. Only original spare parts must be used and any repairs must be carried out exclusively by qualified personnel. Failure to comply with the above-mentioned recommendations may jeopardise the appliance’s safety and void the manufacturer’s liability. In the event of prolonged inactivity of the water heater, it is advisable to carry out the following: - Disconnect the appliance from the power supply or, if a switch is mounted upstream from the appliance, turn the switch itself to the “OFF” position. - Close all taps of the domestic water supply system. - Empity the product as shown par. 8.1 WARNING! Hot water at temperatures above 50°C running from taps may immediately cause serious burns. Children, the disabled and the elderly run a greater risk in this regard. Therefore, it is advisable to use a thermostatic mixing valve connected to the appliance’s water outlet pipe. CAUTION If the display shows the icon to the side, it means that the water temperature has reached a temperature more than 6°C above the temperature set. CAUTION! (only for 250I model) Ensure that the temperature detected by the S2 and S3 sensors of the auxiliary source's control unit, inside the water heater, do not exceed 75°C. 6.3 Safety regulations Refer to paragraph 1.1 for the description of the symbols used in the table below. Ref. Warning Type of risk Symbol 1 Do not perform operations that involve removing the appliance from its housing. Electrocution due to exposure to live components. Flooding caused by water leaking from disconnected piping. 2 Do not leave objects lying on the appliance. Personal injury caused by the object falling off the appliance as a result of vibrations. Damage to the appliance or any underlying items caused by the object falling off as a result of vibrations. 3 Do not climb onto the appliance. 4 Do not perform any operations that involve opening the appliance. Personal injury caused by the appliance falling down. Damage to the appliance or any underlying objects caused by the appliance detaching from its fixing brackets and falling. Electrocution due to exposure to live components. Personal injury caused by burns due to overheated components, or wounds caused by sharp edges or protrusions. 5 Do not damage the power supply cable. Electrocution from non-insulated live wires. 6 7 8 9 10 11 Do not climb onto chairs, stools, ladders or unstable supports to clean the appliance. Do not attempt to clean the appliance without first switching it off, removing the plug or turning the external switch to the OFF position. Do not use the appliance for any purpose other than normal household operation. Do not allow children or inexperienced persons to operate the appliance. Do not use insecticides, solvents or aggressive detergents to clean the appliance. Avoid placing any objects and/or appliance beneath the water heater Personal injury caused by falling from a height or cuts (stepladders shutting accidentally). Electrocution due to exposure to live components. Damage to the appliance caused by operation overload. Damage to objects caused by improper use. Damage to the appliance caused by improper use. Damage to plastic or painted parts. Damage due to possible water leakage. 12 Do not drink the water of condensation Injury from positioning 20

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