Model - CLAS ONE SYSTEM

SINGLE-CIRCUIT Condensing boiler with a wide range of functions

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

• 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 gas diameter – 80/60 mm

ENERGY CHARACTERISTICS

Nominal thermal output for heating circuit, max/min (Hi) kW 22.0 / 3.7

Nominal thermal output for heating circuit, max/min (Hs) kW 24.4 / 4,

Thermal output, max/min (80 °C - 60 °C) Pn kW 21.4 / 3.4

Thermal output, max/min (50°C - 30°C) Pn kW 23.6 / 3.9

Fuel combustion efficiency (measured at flue gas outlet) % 98.0

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

Efficiency at nominal power (30°/50°C) Hi/Hs % 107.3

Efficiency at 30% of nominal power (30° C) (condensation mode) Hi/Hs % 109.8

Efficiency at minimum power, Hi/Hs % 93.1

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

ELECTRICAL CHARACTERISTICS

Voltage and frequency V/Hz 230/50

Power consumption W 77

Energy Efficiency Index (EEI) > 0.23

Air temperature, min °C +5

Protection class IP X5D

Weight kg 29,