Gas Vaillant atmoTEC pro VUW 280/5-3 27.8 kW double-circuit

Weight: 42 kg
Equipment: Display
Description: Type of heating boiler: gas, max. heating power: 27.80 kW, number of circuits: double-circuit, placement: wall-mounted, fuel: natural gas, liquefied gas, type of combustion chamber: open, type of supply: single-phase,
Peculiarities: Air vent, built-in expansion tank, built-in circulation pump, pressure gauge, safety valve, connector for external control, thermometer
Control: Electronic
Dimensions WxHxD: 440x800x338 mm
Installation: Wall-mounted
Efficiency: 93 %
Fuel: Natural gas, liquefied gas
Mains voltage: Single-phase
Chimney diameter: 135 mm
Thermal power: 10.50 - 27.80 kW
The combustion chamber: Open
Max. water pressure in the DHW circuit: 10 bar
Max. water pressure in the heating circuit: 3 bar
Temperature in the DHW circuit: 35 - 65 °С
Heat carrier temperature: 30 - 80 °С
Thermal load: 12.40 - 31.10 kW
Expansion tank volume: 6 l
Burner: Gas
Gas connection: 1/2"
Branch pipe for connecting the DHW circuit: 3/4"
Heating circuit connection: 3/4"
Nominal pressure of natural gas: 13 - 20 mbar
Natural gas consumption: 3.2 cu. m/hour
Number of circuits: Double-circuit
Primary heat exchanger material: Copper
Type of heating boiler: Gas, convection
Hot water capacity at t 30°C: 11.5 l/min