The heating circuit manifold for heating and cooling systems

The cooling and heating circuit manifold from Variotherm regulates the flow rate and distributes the water from your heat source (e.g., heat pump) evenly in the surface heating and cooling systems for floors, walls, and ceilings. This ensures that the rooms in your home are comfortably warm and pleasantly cool.

Integrated heating circuit manifold in white manifold cabinet on-wall with visible supply and return segments, installed in the modern living space.

VarioManifold 5.0

Every house needs a Heating – and increasingly also a Cooling. Every Heating and Cooling, in turn, needs a reliable distribution system. Professional installers and builders appreciate the VarioManifold 5.0: its absolute reliability, quick Installation, and easy, individual regulation of the heating and cooling circuits. 

VarioManifold 5.0

Every house needs a Heating – and increasingly also a Cooling. Every Heating and Cooling, in turn, needs a reliable distribution system. Professional installers and builders appreciate the VarioManifold 5.0: its absolute reliability, quick Installation, and easy, individual regulation of the heating and cooling circuits. 

Heating circuit manifold from Variotherm with eight integrated flow segments

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This is how the heating and cooling circuit distributor works.

Explained using the example of a heating circuit manifold: It consists of an equal number of supply and return connections, arranged on two manifold bars. From the heat source (e.g., heat pump), the water flows into the manifold system during heating with a flow temperature between 25 and 35 °C. This directs the warm water directly into the individual rooms. The water heats the rooms via the surfaces, cools down again, and flows back into the heating circuit manifold via the return. With the VarioManifold 5.0, the heating and cooling circuit manifold from Variotherm, up to 17 heating circuits can be connected. Thanks to its modular design, the VarioManifold 5.0 can also be expanded at any time with individual elements afterward.

The required flow rates of the circulating water in the individual heating circuits are adjusted via control valves, thus performing the hydraulic balancing. This ensures that it is evenly warm in every room.

The same process occurs with water-guided surface cooling for wall and ceiling. 

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Side view of a heating circuit manifold with flow segments and blue control valves

The modular all-rounder

Space-saving. Flexible in installation. Precisely adjustable. Easy to clean. Expandable at any time. The Variotherm heating/cooling circuit manifold meets the highest professional standards and impresses in practice with many useful features.

The modular all-rounder

Space-saving. Flexible in installation. Precisely adjustable. Easy to clean. Expandable at any time. The Variotherm heating/cooling circuit manifold meets the highest professional standards and impresses in practice with many useful features.

Simple! Free in the installation

The individual segments are only 50 mm wide and 55 mm deep. This allows them to fit space-savingly into a manifold cabinet that is only 80 mm deep when installed. A true space marvel!

Simple! Free in the installation

The individual segments are only 50 mm wide and 55 mm deep. This allows them to fit space-savingly into a manifold cabinet that is only 80 mm deep when installed. A true space miracle!

Safe and accurate adjustment

The right setting leads to success! The orange fixing ring makes this very safe and easy. During commissioning, the optimal flow per heating and cooling circuit is set. Fix the ring and you're done. Once regulated, the control valve can be repositioned to the previously set value even after a possible closure. This fully complies with EN 1264-4.  

Safe and precise adjustment

The right setting leads to success! The orange fixing ring makes this very safe and easy. During commissioning, the optimal flow per heating and cooling circuit is set. Fix the ring and you're done. Once regulated, the control valve can be repositioned to the previously set value even after a possible closure. This fully complies with EN 1264-4.  

Flexible! Expandable at any time.

Thanks to its modular design, the VarioManifold 5.0 can be retrofitted with individual elements. Depending on the need, up to 17 heating/cooling circuits can be installed. The installation is carried out in the standard version as a 2-bar manifold, but installation in the form of a 1-bar manifold is also possible. Innovative and individual!

Flexible! Expandable at any time.

Thanks to its modular design, the VarioManifold 5.0 can be retrofitted with individual elements. Depending on the need, up to 17 heating/cooling circuits can be installed. The installation is carried out in the standard version as a 2-bar manifold – but installation in the form of a 1-bar manifold is also possible. Innovative and individual!

Clean! Easy to clean.

The transparent sight glass of the flow meter can be easily unscrewed and cleaned if necessary. This can be done during operation, under pressure. Cleaning ensures that the flow rate on the sight glass (liters per hour) can always be read clearly and distinctly. Clean solution!

Clean! Easy to clean.

The transparent sight glass of the flow meter can be effortlessly unscrewed and cleaned if necessary. This can be done under pressure during operation. Cleaning ensures that the flow rate on the sight glass (liters per hour) can always be read clearly and distinctly. Clean affair!

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The VarioManifold simply explained

A heating and cooling circuit manifold regulates the flow rates of the water and distributes it evenly in the surface heating and cooling systems. This is the only way to keep it comfortable within your own four walls in summer and winter. 

If a surface heating or cooling system is installed in a building, the installed heating pipes reach different lengths. This results in various pressure losses. The consequence: some rooms are heated or cooled better and others worse. 

The solution: A distribution system regulates and distributes the heating and cooling capacity in a water-based surface heating and cooling system for floor, wall, and ceiling. 

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Tested and approved.

In addition, the tested and practically proven distributor is awarded with quality and excellence seals.

Technology and Installation

As with all Variotherm complete systems, special attention was paid to making the installation as quick and easy as possible in practice when developing the VarioManifold 5.0. The modern heating circuit manifold can be easily installed flush-mounted, discreetly disappearing into the wall and thus ensuring a tidy, harmonious room feel.

Schematic representation of a heating circuit manifold with numbered components for supply and return.
  1. 3 port valve with blind plug supply (1" internal thread)
  2. 3 port ball valve with blind plug return (1" internal thread)
  3. Manual air vent
  4. Thermometer
  5. KFE valve 1/2", rotatable
  6. Flow indicator, sight glass can be unscrewed under pressure
  7. Supply segment with adjustable flow indicator (10–160 l/h)
  8. Return segment with shut-off valve
  9. Thermoelectric actuator (for individual room control)
  10. Labeling tags
  11. End plate (insulated)
  12. Compression fitting 3/4" Eurocone (for pipes ø11.6, ø16, and ø20 mm)
  13. Insulating sleeve (optional for cooling case) 

1 3-way ball valve with blind plug supply (1" internal thread) 
2 3-way ball valve with blind plug return (1" internal thread) 
3 Manual air vent 
4 Thermometer 
5 KFE valve 1/2", rotatable 
6 Flow indicator, sight glass can be unscrewed under pressure 
7 Supply segment with pre-adjustable flow indicator (10–160 l/h) 
8 Return segment with shut-off valve 
9 Thermoelectric Actuator (for individual room control) 
10 Label tags 
11 End plate (insulated) 
12 Compression fitting 3/4" Eurocone (for pipes ø11.6, ø16, and ø20 mm) 
13 Insulating sleeve (optional for cooling case) 

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Components

Two three-way ball valves made of brass with wing handles in blue and red.

Three port valve

Designed for practical use. The port valve with blind plug facilitates installation and provides the installer with greater flexibility.

Transparently presented spacer for space-saving installation, with a view of the internal valve and threaded connection at the bottom.

Space-creating spacer

The spacers for the bracket set increase the distance between the manifold bar and the wall. This allows the pipes to be pulled through more easily behind the return bar.

Two three-way ball valves made of brass with wing handles in blue and red.

Three port valve

Designed for practical use. The port valve with blind plug facilitates installation and provides the installer with greater flexibility.

Transparently presented spacer for space-saving installation, with a view of the internal valve and threaded connection at the bottom.

Space-creating spacer

The spacers for the bracket set increase the distance between the manifold bar and the wall. This allows the pipes to be pulled through more easily behind the return bar.

Two colored click installation brackets in blue and orange made of plastic

Time-saving click installation

It doesn't get any faster. With a simple twisting motion, the bracket sets are fixed to the manifold and can be moved to the appropriate position. Click the bracket sets into the installation rail and screw them tight. Done.

Disassembled multifunction tool with flow indicator and two plastic rings.

Multifunctional dual tool

Two functions in no time. Without additional tools, the valves can be exchanged in both the supply and return segments.

Two colored click installation brackets in blue and orange made of plastic

Time-saving click installation

It doesn't get any faster. With a simple twisting motion, the bracket sets are fixed to the manifold and can be moved to the appropriate position. Click the bracket sets into the installation rail and screw them tight. Done.

Disassembled multifunction tool with flow indicator and two plastic rings.

Multifunctional dual tool

Two functions in no time. Without additional tools, the valves can be exchanged in both the supply and return segments.

Two brass-colored KFE valves with sealing ring, one of them as an angled piece with external thread.

Self-sealing KFE valve

For filling and emptying. The KFE valve used in the VarioManifold 5.0 and the Pumped VarioManifold 5.0 is rotatable and thus more accessible for the flushing process. It can be screwed in and out or opened and closed with the cap.

Components of a weather-controlled regulation by Variotherm, consisting of a yellow control unit, sensors, cables, and a small white housing.

Weather-controlled regulation

Perfect room temperature in any weather: The weather-controlled regulation is an alternative to manual temperature control. Depending on the outside temperature, the flow temperature is automatically adjusted. Available for the Pumped VarioManifold 5.0 and the Pump Microstation.

Two brass-colored KFE valves with sealing ring, one of them as an angled piece with external thread.

Self-sealing KFE valve

For filling and emptying. The KFE valve used in the VarioManifold 5.0 and the Pumped VarioManifold 5.0 is rotatable and thus more accessible for the flushing process. It can be screwed in and out or opened and closed with the cap.

Components of a weather-controlled regulation by Variotherm, consisting of a yellow control unit, sensors, cables, and a small white housing.

Weather-controlled regulation

Perfect room temperature in any weather: The weather-controlled regulation is an alternative to manual temperature control. Depending on the outside temperature, the flow temperature is automatically adjusted. Available for the Pumped VarioManifold 5.0 and the Pump Microstation.

VarioManometer Set

The VarioManometer Set enables clean installation on the 3-way ball valve. This ensures precise pressure control on the VarioManifold 5.0 and thus contributes to reliable and safe system monitoring.

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