Airfel Integrity Plus/Instant KM4-28CE 27.6 kW

Weight: 32 kg
Equipment: Display
Description: Type of heating boiler: gas, max. thermal power: 27.60 kW, number of circuits: double-circuit, location: wall-mounted, fuel: natural gas, liquefied gas, type of combustion chamber: closed, type of power supply: single-phase,
Peculiarities: Air vent, built-in expansion tank, built-in circulation pump, safety valve, connector for external control, thermometer
Control: Electronic
Dimensions WxHxD: 439x724x269 mm
Installation: Wall-mounted
Efficiency: 91.9 %
Fuel: Natural gas, liquefied gas
Mains voltage: Single-phase
Thermal power: 11.10 - 27.60 kW
LPG consumption: 1.9 kg/hour
Secondary heat exchanger material: Stainless steel
The combustion chamber: Closed
Max. water pressure in the heating circuit: 3 bar
Temperature in the DHW circuit: 35 - 57 °С
Heat carrier temperature: 35 - 85 °С
Thermal load: 13 - 30 kW
Expansion tank volume: 7 l
Burner: Gas
Coaxial chimney diameter: 60/100 mm
Gas connection: 3/4"
Branch pipe for connecting the DHW circuit: 1/2"
Heating circuit connection: 3/4"
Permissible LPG pressure: 37 mbar
Nominal pressure of natural gas: 20 mbar
Natural gas consumption: 3.07 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: 13 l/min