FULL CONDENSATION
6 YEAR WARRANTY
ITALIAN DESIGN
A chimney suitable for the model is included
Dimensions (Y X M X W): 745X400X315mm
ENERGY EFFICIENCY
Energy Class A+ achieved by thermoregulation.
1:7 aspect ratio
Gas conversion by changing the gas injector
DESIGN AND TECHNOLOGY
Large touch screen
Ignition system, electronic combustion control
BusBridgeNet communication protocol
AUTO functions
New CARE function, automatic notification of scheduled maintenance
Ariston NET connectivity is achieved with Cube S NET, Sensys NET thermostats
Exhaust 80, 60, 50 mm
COMFORT
Maximum quietness and acoustic comfort will be in your home. The Clas One has a new optimized muffler, panel sound insulation, and very few cycles, thanks to the full analog modulation pump.
Very precise power regulation according to the actual heating need thanks to the 1:7 modulation ratio.
The AUTO mode avoids temperature fluctuations and peaks, giving a constant temperature for maximum thermal comfort.
QUALITY
The addition of a heating return filter guarantees the protection of the boiler from the accumulation of impurities in the water.
The use of anti-sticking systems prevents frost and scale build-up protecting not only the boiler but also the entire system.
External combustion analysis port allows easy control of combustion quality.
specifications
POWER SPECIFICATIONS
Max/min nominal thermal output (Pci) Qn: 28.0/4.3kW
Max/min rated thermal output (Pcs) Qn: 31.1/4.8kW
Max/min nominal thermal output ZNX (Pci) Qn: 30.0/4.3kW
Max/min nominal thermal output ZNX (Pcs) Qn: 33.3/4.8kW
Max/min power output (80°C-60°C) Pn: 27.4/3.9kW
Max/min output power (50°C-30°C) Pn: 30/4.5kW
Max/min DHW output power Pn: 28.7/4.1kW
Combustion efficiency (in exhaust gases): 98%
Nominal thermal efficiency (60/80°C) Hi/Hs: 97.9/88.2%
Nominal thermal efficiency (30/50°C) Hi/Hs: 107.3/96.6%
Efficiency at 30% at 30°C (condensing) Hi/Hs: 109.6/98.7%
Minimum thermal efficiency (60/80°C) Hi/Hs: 91.1/82%
Performance evaluation (directive 92/42/EEC): **** stars
Gas burner loss during operation: 2%
shows
Available air pressure: 100Pa
NOx class: 5 class
Exhaust temperature (G20) (80°C-60°C): 62°C
CO2 content (G20) (80°-60°C): 3.9%
CO content (0%02) (80°-60°C): 123.8ppm
Maximum exhaust gas flow (G20) (80°-60°C): 48.6 kg/h
Excess air (80°-60°C): 25%
HEATING CIRCUIT
Expansion tank inflation pressure: 1bar
Maximum heating pressure: 3 bar
Expansion tank capacity: 8l
Min/max heating temperature (high temperature range): 35/82°C
Min/max heating temperature (low temperature range): 20/45°C
ELECTRICAL
Power supply frequency/voltage: 230/50 V/Hz
Total absorbed electrical power: 114W
Minimum ambient temperature: >0°C
Protection level for electrical device: X5DIP
Weight: 32.3kg
