HERMANN VERA OF 25 Erp boiler with natural exhaust

VERA OF 25 Erp boiler with natural exhaust

Vera OF
is a new range of combined wall-mounted boilers with a water-cooled LowNOx burner, which are adapted to various system solutions. The burner is structurally designed to achieve the highest possible combustion efficiency with minimum nitrogen oxide production.

Low emission burner
NOx - NOx class 6

• Constant efficiency above 90% at any heat input

• Preheating function in the DHW circuit

• Possibility of connection to a solar system

Hydraulic system

• Electric three-way valve
• Water-cooled burner with low NOx emissions
• Primary heat exchanger made of copper and with a protective anti-corrosion layer
• Stainless steel plate heat exchanger for DHW heating
• TV inlet switch with turbine
• Automatic by-pass
• Electronic circulating pump with low consumption, with automatic speed control and built-in deaeration
• Anti-blocking function of the pump and three-way valve, which is activated every 24 hours
• Heating system safety valve 3 bar
• Expansion vessel with a volume of 10 liters

Thermal regulation

• Built-in equithermal control (after connecting an external probe supplied as an accessory to order)
• Possibility to connect a HOME PLUS remote control
• Possibility to connect OpenTherm control
• Control and safety elements
• Emergency thermostat overheating of the primary exchanger
• Hydraulic pressure switch that shuts down the boiler in the event of a lack of water
• Emergency thermostat for checking the correct flue gas extraction
• "Chimney" function - automatic control of all electrical elements in the appliance
• Checking the faultless operation of the burner
• Temperature control with NTC probes
• Anti-freeze function
• Electronic thermometer
• Pressure gauge for heating system

Technical data:

• Boiler power: 10 - 23kW
• Maximum efficiency (80-60°C): 90.4%
• Dimensions: 400 x 250 x 700 mm
• Weight: 24.5 kg