UNIMIX - universal assembly, cabinet N-MAX 3 - 3/4 "xEK; 6-way; DAB.EVOSTA2 40-70/130; brass IVAR.UNIMIX

Product detailed description

The IVAR UNIMIX unit is commonly used in residential and commercial buildings for underfloor heating applications, often combined with radiators. It allows for precise temperature control and flow distribution in mixed systems. Installers typically handle the integration of circulation pumps, balancing valves and temperature regulation components. This unit is suitable for systems requiring individual room control and thermal zoning.

Correct installation ensures balanced heat distribution and prevents overheating in sensitive areas such as wooden floors. The unit supports both wall-mounted and built-in configurations, depending on space constraints and design requirements. It is essential to follow the manufacturer’s guidelines during commissioning to avoid performance issues caused by improper setup.

Technical parameters

Material	Brass CW617N
Operating temperature	+90 °C
Nominal pressure	PN 6
Code	557674UN
Brand	IVAR

This unit operates at a maximum temperature of +90°C and is rated for a nominal pressure of PN 6. These parameters are critical when selecting the unit for a specific system size and load. The brass construction (CW617N) ensures durability in aggressive environments and long-term reliability under normal operating conditions.

Installation and connection

This unit connects via internal 3/4 inch female threads. When installing, ensure all pipe connections are clean and free of debris to prevent blockages. The cabinet must be mounted securely using the provided brackets. A common mistake is incorrect orientation of the mixing valve or misalignment of the bypass. Always verify the direction of flow indicated on the unit and confirm that all valves are in the correct open/closed position before commissioning.

Compatibility and accessories

This unit is compatible with standard underfloor heating systems and radiators. It includes balancing valves, shut-off valves and flow meters. Additional components such as the IVAR.AC 614 E thermostat are required to control the circulation pump. Ensure the cabinet type is specified during ordering—options include built-in, wall-mounted or without a cabinet.

Technical background for designers

The unit combines a circulation pump with a three-way mixing valve to maintain a constant supply temperature. The brass body (CW617N) is resistant to corrosion and thermal expansion, making it suitable for long-term use in closed heating systems. Proper sizing depends on the total heat demand and flow rate of the system. The bypass allows for flow adjustment to prevent excessive pressure drops in the circuit.

Service and operation

Regular checks should include verifying the operation of the circulation pump and ensuring the temperature sensor is correctly positioned. The unit includes an emergency thermostat and pressure relief valve for safety. While no scheduled service intervals are specified, it is recommended to inspect the system annually for leaks and blockages. Always flush the system before commissioning to remove impurities.

Frequently asked questions

Can the circulation pump be controlled externally?
Yes, the pump can be controlled using an external thermostat such as the IVAR.AC 614 E. The pump itself is not included in the control system by default.

Is a separate cabinet required?
No, the cabinet is optional and must be selected during ordering. Options include built-in, wall-mounted or no cabinet.

What is the purpose of the bypass?
The bypass allows for flow adjustment and helps maintain stable pressure in the system, especially when the mixing valve is partially closed.

Can this unit be used with solar heating systems?
It is not explicitly designed for solar heating systems. Consult the manufacturer’s technical documentation for compatibility details.