Vaillant VR40 0020017744 Multifunctional Module

• Can be integrated into the boiler to manage two auxiliary electrical devices
• Control of the hot water circulation pump and external solenoid valve
• External control of the heating circuit pump
• Item package quantity: 1.0

Vaillant VR40 0020017744 Multifunctional Module can be integrated into the boiler to manage two auxiliary electrical devices. With the possibility of realizing 2 of 7 additional functions at the same time: control of the hot water circulation pump, control of the external solenoid valve, output of the fault signaling, external control of the heating circuit pump, control of the flue gas dampers, confirmation of the flap opening, vapor extraction control.