Nominal P/Q curve (20.8 mm venturi, 230 V)



Capacity & Modulation Range

■ The system is intended for premix applications up to 40 kW net input
■ Achievable capacity depending on appliance resistance and selected venturi
■ Modulation range 1:5 with appropriate venturi size selected

Electrical Connections

■ Gas valve: VK4115V = 230 Vrac / VK8115V = 24 Vrac

Fan ■ Power supply: ■ Speed control: High signal: Low signal: ■ Tacho signal: _ 230 V AC PWM, frequency 1 KHz - 6 KHz 1.2 - 3 mA < 0.2 mA Fan speed x 2, open collector output