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ENGLISH

Serial number plate

Qnw Domestic hot water function

Heating function

Qn Nominal heat delivery

Pn Nominal heat output

Qm Reduced heat delivery

IP Degree of Protection

Pmw Maximum DHW pressure

Pms Maximum heating pressure

T Temperature

D Speciﬁ c ﬂ ow rate

NOx NOx class

ADDED DEVICES CLASS BONUS

OUTDOOR TEMPERATURE SENSOR II 2%

OT CONTROL PANEL (*) V 3%

OUTDOOR TEMPERATURE SENSOR + OT CONTROL PANEL (*) VI 4%

NOTE

With reference to the Delegated Regulation (EU) No. 811/2013, the information in the table can be used for completing the product data sheet and the labelling for room heating appliances, for mixed

heating appliances, for all those appliances for enclosed space heating, for temperature control devices and solar devices:

(*) Set as a room regulator

Parameter Symbol CIAO AT

25C

Unit

Seasonal space heating energy efﬁciency class - B -

Water heating energy efﬁciency class -A-

Rated heat output Pnominal 24 kW

Seasonal space heating energy efﬁciency ηs87 %

Useful heat output

At rated heat output and high-temperature regime (*) P4 24,0 kW

At 30% of rated heat output and low-temperature regime (**) P1 7,6 kW

Useful efﬁciency

At rated heat output and high-temperature regime (*) η4 86,1 %

At 30% of rated heat output and low-temperature regime (**) η1 91,6 %

Auxiliary electricity consumption

At full load elmax 69,0 W

At part load elmin 37,0 W

In Stand-by mode PSB 3,0 W

Other parameters

Stand-by heat loss Pstby 49,0 W

Pilot ﬂame energy consumption Pign - W

Annual energy consumption QHE 51 GJ

Sound power level, indoors LWA 52 dB

Emissions of nitrogen oxides NOx 35 mg/kWh

For combination heaters

Declared load proﬁle XL

Water heating energy efﬁciency ηwh 82 %

Daily electricity consumption Qelec 0,135 kWh

Daily fuel consumption Qfuel 24,092 kWh

Annual electricity consumption AEC 30 kWh

Annual fuel consumption AFC 18 GJ

(*) High-temperature regime means 60 °C return temperature at heater inlet and 80 °C feed temperature at heater outlet.

(**) Low temperature means for condensing boilers 30 °C, for low-temperature boilers 37 °C and for other heaters 50 °C return temperature (at heater inlet).

Qn (Hi) =

Serial N.

230 V ~ 50 Hz W

NOx:

Pms = bar T= °C

Pn =

Via Risorgimento 23/A - 23900 Lecco (LC) Italy

Pmw = bar T= °C

D: l/min

50-30 °C

80-60

°C