Nimbus M NET R32 Hybrid Installation Manual UK

Description of the

Description of the system 2.5.2 Technical data TECHNICAL DATA Dimensions 134 mm x 96 mm x 21 mm Power supply BUS BridgeNet® 8 to 24V max Current draw ≤35mA Operating temperature 0 ÷ 50°C Storage temperature -10 ÷ 45°C Humidity 20% RH ÷ 80% RH Temperature reading precision +/- 0,5°C Buffer memory duration min. 2h Bus cable length and max. 50 m ø min. 0.5 mm² cross-sectional area Note: in order to avoid interference problems, use a shielded cable or twisted-pair cable. PRODUCT TECHNICAL SHEET Supplier name ARISTON Supplier identification model SENSYS HD Temperature control class F Energy efficiency contribution % for +3% space heating Addition of an ARISTON outdoor sensor: Temperature control class VI Energy efficiency contribution % for +4% space heating In a system with 3 zones with 2 ARISTON room Sensors: Temperature control class VIII Energy efficiency contribution % for +5% space heating 2.6 External probe PRODUCT TECHNICAL SHEET Supplier name ARISTON Supplier identification model OUTDOOR SENSOR Temperature control class II Energy efficiency contribution +2% % for space heating A B C Fig. 18 – Position the outdoor sensor on the north-facing wall of the building, at least 2.5 m from the ground and away from direct sunlight. – Remove the cover (A) and install the sensor using the rawl plug and screw provided (B). – Make the connection using a 2x0.5 mm 2 cable. Maximum connection length 50 m. – Connect the wire to the terminal (C) by introducing it from the lower part after creating a suitable passage. – Place the sensor cover back in the correct position. 17,8 mm 134 mm 95,6 mm Fig. 17 16 / EN

Installation 3. Installation 3.1 Preliminary warnings i The appliance must be installed exclusively by the Technical Service or by professionally qualified personnel who MUST wear adequate accident-prevention protective equipment. The outdoor unit uses a HFC R-32 (GWP 675) type eco-friendly liquid refrigerant, which does not deplete the ozone layer. Make sure that all the materials used for maintenance and for filling the components can be used with the R-32 refrigerant. (*) Global warming potential Refrigerant GWP (*) R-32 675 This unit is filled in the factory with the amount of refrigerant shown on the data plate. If the circuit must be filled after maintenance or repairs, see the information appearing in this manual. The appliance must be filled with the refrigerant specified, namely R-32. a To prevent damages to the compressor, do not fill the circuit with a quantity of refrigerant exceeding the amount specified by the manufacturer. The canisters containing the R-32 refrigerant are equipped with a dip tube which allows liquid to flow out only when placed in a vertical position with the valve on top. The R-32 refrigerant, as occurs with all HFC refrigerants, is compatible only with oils recommended by the compressor manufacturer. POE-type oils rapidly absorb moisture. Do not expose the oil to the air. a a Never open the appliance when it is under a vacuum. Do not disperse the R-32 refrigerant into the environment. a – Ensure that all applicable national safety standards are observed throughout the course of the installation. – Ensure that the system is adequately earthed. – Ensure that the power supply voltage and frequency match those required by the outdoor unit, and that the installed power is sufficient for its operation. – Ensure that the power circuit impedance matches the electrical power absorbed by the outdoor unit, as shown on the rating plate of the outdoor unit (EN 61000-3-12). – Ensure that residual-current devices and safety switches are adequately sized and connected to the outdoor and indoor units. Never use equipment other than that recommended by the manufacturer to speed up defrosting or for cleaning purposes. The appliances must be stored in a room without ignition sources operating continuously (for example: open flames, a running gas-fired device or a running electric heater). During tests, never raise the appliance’s pressure beyond the level recommended by the manufacturer. a a In the event of refrigerant leakages, immediately ventilate the area. Do not perforate or give fire to the appliance. Potential risks linked to refrigerant leakages: – Reduction of the oxygen in the installation zone – If the R-32 refrigerant comes into contact with flames, it can generate toxic gases. 17 / EN