The mixing group DN 20 - ¾" "HV3-90" is a unit with 3-way mixing valve controlled by an electric rotary actuator and can be connected to any type of electronic heating controller. The valve is supplied with 2 bypasses: - upper by-pass (system side): it takes part of the water from the system return and flows it into the flow; therefore it allows to recover heat and balance the temperature; this is ideal for underfloor systems. - lower by-pass (boiler side): allows the bypassing of the flow water in the presence of the circulator in the boiler and no hydraulic separator.
The unit is supplied with right flow.
Plus / Advantages:
• Compact control unit ready for installation - 3-way mixing valve controlled by an electric rotary actuator - Electronic pump H = 130 mm, attach 1" - Extremely easy maintenance: control and replacement of the pump without emptying the system - Extremely easy to change the flow from right to left; it can be carried out directly by the installer by changing the positions of the pipe and the pump and acting on the valve -Return pipe with non-return valve - Seals secured by flat stops and seals - Ball-valves on the flow and return with integrated thermometer - Thermal insulation in black EPP
HV3-90 DN20 Wilo PARA SC 15/1-6 (Cod. 49023230)
without pump (Cod. 49022501)