EOLO Star 23 kWWall-mounted instant boilers EOLO Star 23 kW is the wall-mounted room sealed fanassisted boiler that Immergas has designed specifically for use in new buildings. It is lightweight, compact (measuring only 25 cm in depth) and elegantly designed making it easy and pleasant to install. Thanks to the bithermal heat exchanger, abundant domestic hot water is heated quickly to the temperature required. The operating parameters can be adjusted by way of a digital interface with display and push buttons. EOLO Star 23kW can be controlled remotely by connecting it to the new optional Digital Remote Control that also integrates the timer/room thermostat, boiler diagnostics and thermoregulation of the delivery temperature. The appliance has an IPX4D electrical insulation level (protection against spurts of water). Thanks to their low consumptions, all the boilers in the EOLO Star 23 kW series have obtained 3-star markings (★★★), in compliance with European Directive. 1 SPECIFICATIONS • control panel with microprocessor controlled p.c.b. with continuous 2-sensor flame modulation (d.h.w. and central heating) with modulation range of 23.8 to 9.5 kW (7.0 kW in d.h.w.); • keys for setting and adjusting boiler operating parameters; • self-diagnosis system with digital visualisation of the temperature, status, functioning mode and error codes on the display; • central heating ignition delay device, antifreeze protection system (up to -5°C), circulator antiblock function, d.h.w. postcirculation function, post-ventilation function, chimney sweep function, anti-leak function, circulation functioning mode selection; • set for connection to the Remote Digital Control, to a timer/room thermostat or to a wireless radio timer/room thermostat; • IPX4D electrical insulation level; • connection set (optional) with adjustable fittings on hydraulic couplings and cold domestic water/gas shutoff cocks; • polyphosphate dispenser kit(optional), recommended where the hardness of the water can mean scale deposits Supplied with holes for combustion analysis and a bottom protective casing. II2H3+ category appliance, works with natural gas and LPG CE marked. The following model is available: • EOLO Star 23 kW EXPORT code 3.016170 Wall-hung room-sealed fan-assisted boiler for central heating and the instant production of domestic hot water (appliance type C12 / C32 /C42 / C52/ C82) with a nominal heat output of 23.8 kW (20,485 kcal/h) together with high efficiency and forced circulation. The boiler consists of: • a 12-ramp multigas burner with air intake made in stainless steel, featuring an ignition electrode and ionisation detection electrode and a dual-shutter electric gas valve with built-in modulation coil; • high efficiency gas/water bithermal heat exchanger made in copper with tubes inserted in a lamellar battery protected by a corrosive proof alloy; • combustion chamber in steel plate insulated internally with ceramic panels; • sealed chamber in steel plate with fixed speed fan to eliminate fumes, a pressure switch for verifying correct operation of the fan and of the air intake/flue exhaust circuit; • hydraulic unit consisting of a water manifold, d.h.w. circuit flow switch, absolute pressure switch on the system side, circulating pump, automatic by-pass, filling valve; • a 6-litre diaphragm expansion tank with a preload pressure of 1 bar, a 3 bar system safety valve and a manometer; • overheating safety thermostat; • electronic ignition with ionisation control; • push buttons (+ and -) for adjusting the central heating temperature, push buttons (+ and -) for adjusting the domestic hot water temperature, a general “function” switch (Stand-by, Summer, Winter) and a reset button; 1 Sealed chamber 3 .Intakes (air A) .Fan 4 .Negative signal pressure point 11 .Delivery probe 13 14 15 16 17 18 19 20 21 22 23 24 25 Safety thermostat System expansion vessel Automatic air vent Boiler circulator System pressure switch Water manifold 3-bar safety valve Manometer System draining cock Draught diverter Quick type bithermal heat exchanger Ignition and detection electrodes Burner 2 .Gas valve 7 .Combustion chamber 5 .Domestic water probe 8 .(flues F) 2 .Positive signal pressure point 10 .Flue pressure switch 12 .System filling cock 9 .Domestic water flow switch 6 .EOLO Star 23 kW 2 MAIN COMPONENTS 90° gas cock axis – wall dimension = 110 mm LEGEND: 1 . EOLO Star 23 kW 3 Model EOLO Star 23 kW Height mm 785 MAIN DIMENSIONS Width mm 450 Depth mm 250 inlet/outlet Ø mm 100/60 3.1 B A B CONNECTIONS Upper casing line A = inlet/outlet B = inlet Distance between upper casing line and Ø 60/100 concentric elbow axis: 98 mm Distance between upper casing line and Ø 80/80 separator elbow axis: A=138 mm B = 115 Model EOLO Star 23 kW Delivery M 3/4" Return R 3/4" Hot outlet AC 1/2" Cold inlet AF 1/2" Gas G 3/4" Expansion vessel Litres 6 (real 3.95) 3 . 4 Head (m H2O) Head (kPa) . To optimize boiler operation. The “EOLO Star 23 kW” boilers are supplied with the circulator incorporated.EOLO Star 23 kW 4 CIRCULATOR HEAD AND FLOW RATE GRAPH The graph shows the system’s available head (with automatic by-pass) which depends on the flow rate. the circulation pump in new systems (single-pipe and module) should be used at top speed. The circulator is already fitted with a condenser. B = System’s available head at second speed (with automatic by-pass). GRUNDFOS UPS 15-50 AO A B Flow rate l/h A = System’s available head at third speed (with automatic by-pass). Display E1 .System pressure switch S6 S20 S21 S22 S23 S24 T1 T2 X40 Y1 Y2 .Mode selector S3 .Delivery sensor B2 . programmable On/Off thermostat.EOLO Star 23 kW 5 WIRING DIAGRAM Digital Remote Control (CRD).Domestic hot water temperature increase button .Domestic water flow switch S5 .Fan S2 .Digital Remote Control (optional) DS1 .Boiler card transformer .Room thermostat (optional) .Ignition plug E2 .Block reset button S4 .41 and remove the jumper X40.Gas valve modulation coil 5 ����� ����� ����� ����� ��� ��� ���� ���� ����� ����� ���� ���� .Gas valve .Safety thermostat F1 .Heating temperature decrease button .Domestic water probe CRD .Heating temperature increase button .Flue pressure switch . AMBIENT THERMOSTAT AND DIGITAL REMOTE CONTROL. which must be connected to terminals 40 .Ignition transformer .Igniter sensor E4 . programmable timer or a ������������ ������� ����� ����� ���� ����� ����� ���� ����� ����� ���� ������������ ���� ����� ����������� �������������� ��������������������������� ������������������������� ����������������������� LEGEND: B1 .Line fuse F2 .Room thermostat jumper .Neutral fuse M1 . The boiler may be connected to a room thermostat (S20).Boiler circulator M20 .Domestic hot water temperature decrease button . Gas valve 4 .Flue pressure switch 11 .Flow limiter 5 .System draining cock 6 .Draught diverter 12 13 14 15 16 17 18 19 20 - System expansion vessel Delivery probe Safety thermostat Automatic air vent Circulator System pressure switch Automatic by-pass 3-bar safety valve System filling cock 6 .Domestic water probe 2 .Burner 7 .Fan 9 .Sealed chamber 10 .Quick type bithermal heat exchanger 8 .EOLO Star 23 kW 6 HYDRAULIC LAYOUT LEGEND: 1 .Domestic water flow switch 3 . MAX nozzles MIN .H.ø mm V/Hz A W W W 2.80 90 3 6 (3.5 34 ´´´ kW (kcal/h) °C bar bar litres/min litres/min 23.H.79 135 73 43 X4D 3. Minimum nominal heat output D. temperature adjustment C.H.W.5 11.38 .1 7 . temperature adjustment Minimum D.25 8. pressure Maximum D.EOLO Star 23 kW 7 TECHNICAL SPECIFICATIONS EOLO Star 23 kW Maximum nominal heat input Maximum nominal heat output C.H. Minimum nominal heat output Efficiency at 100% Pn Efficiency at 30% Central Heating circuit C. circuit pressure Minimum D.147) 7.W. demand Continuous max D.ø mm mbar n°.H.485) 35 .28.8 (20. max temperature C. max pressure Nom.00 12 x 0.76 230 .76 10.95) 1. / (real) system expansion vessel capacity Expansion vessel preload pressure Available pump head with flow 1000 l/h Domestic Hot Water circuit D. nominal heat output D.55 0.H.5 (8.H.36.H.834) 9.ø mm mbar n°.W.1 °C °C bar litres bar kPa (m H2O) 35 .W.9 91.MAX nozzles mbar n°.W.50 (2.H.60) kW (kcal/h) kW (kcal/h) kW (kcal/h) kW (kcal/h) kW (kcal/h) kW (kcal/h) % % 25.9 (6.094) 7.90 .H.78 .000) 94.6 (9.H.MAX nozzles MIN .0 25.8 (20.586) 23.0 (6.12.13 12 x 1.3 10 1. Minimum nominal heat input D.50 0. production (∆t 30°C) Gas supply NATURAL GAS (G20) LPG (G30) LPG (G31) Electric supply Nominal assorbtion Electric power Power consumption of the fan Power consumption of the pump Electric protection Water content Empty weight Energetic Efficiency Marking (92/42/CEE Directive) stars IP litres kg MIN .H.1 (21.W.485) 10. Minimum nominal heat input C.W.W.H.40 12 x 0. 40 0. gas (G20) 100% Pn combustion efficiency P min combustion efficiency Stack losses with burner on (100% Pn) Stack losses with burner on (P min) Stack losses with burner off Outer casing losses with burner off Outer casing losses with burner on (100% Pn) Outer casing losses with burner on (P min) Exhaust flue temp.54 0.3 89.02 0.9 4. at Max.20 82 68 143 36 3 LPG (G31) 95.1 0.1 0.7 10.30 105 86 52 52 8.9 4.54 0.7 10. The fumes temperature values refer to a 15°C inlet air temperature.3 89.02 0.EOLO Star 23 kW 8 COMBUSTION SPECIFICATIONS Nat.60 57 57 109 30 89 106 3 LPG (G30) 95.00 29 16 133 36 3 The gas flow rates refer to the NHV at 15°C and with 1013 mbar pressure.30 107 83 52 55 6.3 89. nominal heat input Fumes flow rate at Min. nominal heat input Fumes flow rate at Max.70 3.40 0.7 10.00 3.30 109 83 54 55 7.9 4.1 0.90 2. at Min.40 0.02 0. nominal heat input Exhaust flue temp. 8 .54 0. nominal heat input CO2 at Maximum Heat Input CO2 at Minimum Heat Input CO at Maximum Heat Input CO at Minimum Heat Input NOx at Maximum Heat Input NOx at Minimum Heat Input Weighted CO Weighted NOx NOx category % % % % % % % % °C °C kg/h kg/h % % mg/kWh mg/kWh mg/kWh mg/kWh mg/kWh mg/kWh 95. EOLO Star 23 kW 9 Digital weekly timer-thermostat cod.016362 Connections set kit cod. 3.013860 9 .014439 Digital remote control cod. 3. 3.014438 OPTIONALS Remote timer-thermostat (wireless) cod 3.4297 Polyphosphate dispenser kit cod 3.015229 On-off valve kit cod 3. . . 03/2007 . 0522.0067 rev. 001 .689102 www. Code S. 42041 Brescello (RE) Italy .Tel.SISTEMA DI QUALITÀ CERTIFICATO UNI EN ISO 9001: 2000 During their working life. Dept. installed and used in compliance with the current standards in force. . N OT E : r e m e m b e r t o have your appliance periodically serviced.689011 . the weather conditions. etc.immergas.Fax 0522. the performances of the products are influenced by external factors such as the hardness of the domestic water. scaling in the system.Immergas Tec.com Immergas reserves the right to make all modifications to the models considered necessary for product development without prior notice. The data indicated in this brochure refer to new products. Doc.
Report "Carte Tehnica Centrala Termica Immergas Eolo Star 23"