GAS BOILER UNICAL !DEA AC 23 PLUS METHANE OPEN CHAMBER - ErP Technical features Seasonal efficiency class for heating: Class C Sanitary Seasonal Efficiency Class: Class B Declared load profile: M Nominal useful power: kW 23 Minimum useful power: kW 10.3 Combustion efficiency at nominal load 91.0% Combustion efficiency at reduced load 88.6% Minimum pressure of the heating circuit bar 0.5 Maximum pressure of the heating circuit bar 3 Minimum flow rate of the heating circuit. (∆t 20 °C) 7.5 l/min Domestic hot water specific flow rate (∆t 30 °C) 11.0 l/min Total capacity of expansion tank 6 l IP X4D degree of protection Power supply: methane Characteristics Monothermal exchanger + sanitary plate exchanger and 3-way valves Ignition and electronic detection single electrode Proportional continuous gas modulation by microprocessor both in heating and DHW production phases with control temperature probe Antifreeze protection on the primary heating circuit on 2 levels: internal heating activation, block with signal in the event of gas shortage Pump anti-blocking timer which prevents seizure in the event of prolonged inactivity High efficiency modulating circulator equipped with built-in automatic deaerator All-metal shell enamelled with epoxy-polyester paint, insulated with acoustic/thermal insulation (8 mm thick) complete with heat-reflecting layer Facilitated maintenance with tilting panel and front access Included: Hydrometer, automatic differential by-pass, 6 liter expansion vessel, safety valve and thermostat, low water pressure switch, priority flow switch with filter Product Guarantee The warranty on this item is 24 months from the date of purchase.

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Technical features Seasonal efficiency class for heating: Class C Sanitary Seasonal Efficiency Class: Class B Declared load profile: M Nominal useful power: kW 23 Minimum useful power: 9.9 kW Combustion efficiency at nominal load 91.0% Combustion efficiency at reduced load 88.0% Minimum pressure of the heating circuit bar 0.5 Maximum pressure of the heating circuit bar 3 Minimum flow rate of the heating circuit. (∆t 20 °C) 7.12 l/min Specific sanitary water flow rate (∆t 30 °C) 10.5 l/min Total capacity of expansion tank 6 l IP X4D degree of protection Power supply: methane Characteristics Bithermal exchanger Ignition and electronic detection single electrode Proportional continuous gas modulation by microprocessor both in heating and DHW production phases with control temperature probe Antifreeze protection on the primary heating circuit on 2 levels: internal heating activation, block with signal in the event of gas shortage Pump anti-blocking timer which prevents seizure in the event of prolonged inactivity High efficiency modulating circulator equipped with built-in automatic deaerator All-metal shell enamelled with epoxy-polyester paint, insulated with acoustic/thermal insulation (8 mm thick) complete with heat-reflecting layer Facilitated maintenance with tilting panel and front access Included: Hydrometer, automatic differential by-pass, 6 liter expansion vessel, safety valve and thermostat, low water pressure switch, priority flow switch with filter

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