Additionally required coaxial horizontal flue   33318073

Model - CLAS ONE 35

Condensing boiler with a wide range of functions

• Frequency pump

• LCD display

• Busbridge net communication protocol

• Auto, Comfort functions

• Optimized internal muffler

• Modulation ratio 1:7

• Possibility of installation in confined spaces

• Flue diameter – 80/60 mm

Durability, high performance: with Xtratech stainless steel heat exchanger with 142% increased tube cross-section.

Reduced consumption: possibility of achieving heating energy efficiency class A+ when using thermoregulation devices

ENERGY CHARACTERISTICS

Nominal thermal output for heating circuit, max/min (Hi) kW 31.0 / 5

Nominal thermal output for heating circuit, max/min (Hs) kW 34.4 / 5.6,

Thermal output, max/min (80 °C - 60 °C) Pn kW 30.2 / 4.7

Thermal output, max/min (50°C - 30°C) Pn kW 33.5 / 5.3

DHW output, max/min, Pn.   kW 33.1 / 4.8

Fuel combustion efficiency (measured at flue gas outlet) %   97.9

Efficiency at nominal output (60/80 °С), Hi/Hs %   97.5

Efficiency at nominal output (30°/50°C) Hi/Hs %    108.2

Efficiency at 30% of nominal output (30° C) (condensation mode) Hi/Hs %   109.6

Efficiency at minimum output, Hi/Hs % 93.3

HEATING

Expansion tank pressure bar 1

Maximum expansion tank pressure bar 3

Expansion tank volume l 8

Water temperature in heating circuit (high-temperature mode), min/max °C 35 / 82 Water temperature in heating circuit (low-temperature mode), min/max °C 20 / 45

DHW

Water temperature in DHW circuit, min/max °C 36 / 60

 DHW flow rate (after 10 min at ΔT=30 °С) l/min 16.7

DHW flow rate at ΔT=25 °С l/min 20.0

DHW flow rate at ΔT=35 °С l/min 14.3

DHW flow rate, min l/min    < 2

DHW circuit pressure, max bar 7 / 0.3

ELECTRICAL CHARACTERISTICS

 Voltage and frequency V/Hz 230/50

Power consumption W   115

Energy Efficiency Index (EEI) > 0.23

Air temperature, min °C +5

Protection class  5DIP 

Weight kg 34.6