Vaillant wall mounting bracket 1x auroFLOW exclusiv VPM…/2 S

Product detailed description

Vaillant wall-mounting bracket 1 x VPM…/2 S — wall bracket for the auroFLOW exclusiv solar charging station

The wall-mounting bracket 1 x VPM…/2 S is a genuine Vaillant mounting accessory intended for the standalone wall mounting of a single auroFLOW exclusiv solar charging station (referred to in technical documentation as VPM …/2 S). This station is the solar counterpart of the aguaFLOW exclusiv fresh water station — its purpose is not to prepare domestic hot water for consumption, but rather to transfer heat gained in the solar thermal collectors to the allSTOR exclusiv storage tank, where this heat is stored for later use for heating or hot water preparation via other stations or heat sources connected to the same tank.

What is auroFLOW exclusiv and why does it have its own type of bracket

The auroFLOW exclusiv solar charging station contains a heat exchanger, a solar circuit circulation pump and the related control system, which ensures efficient transfer of heat from the roof solar collectors to the storage tank even with varying solar irradiation intensity during the day. As with the aguaFLOW exclusiv, this station can also either be connected directly to the tank body via a plug & play system, or mounted independently on a separate wall bracket — for the same reasons as with the fresh water station (limited space near the tank, need for better service access, or a project requirement to spatially separate the station from the tank).

Although the principle of wall mounting for both types of stations (aguaFLOW and auroFLOW) is similar at first glance, the bracket for the auroFLOW exclusiv solar station is a separate, structurally different part with its own order number — it is therefore not interchangeable with the bracket for the aguaFLOW exclusiv, even with the same number of stations (1x version). This difference stems from the different requirements of the solar circuit regarding hydraulic connection and insulation, and possibly also from a different design of the auroFLOW exclusiv station itself compared to the aguaFLOW exclusiv.

Price difference compared to the equivalent aguaFLOW exclusiv bracket

This bracket for the solar station (€990) is more expensive than the equivalent 1x bracket for the aguaFLOW exclusiv fresh water station (€770). The exact reason for this price difference is not clearly specified in publicly available sources, but likely reasons include a different design accounting for the specific requirements of the solar circuit (for example higher operating temperatures on the solar circuit side during high irradiation intensity, which may require a different material or insulation solution at the connection points), or a different Vaillant pricing policy for accessories of the solar product line as a whole. We recommend that customers view this price difference as part of the overall cost of a specific, manufacturer-verified solution for this type of station, not as an unjustified surcharge.

Technical design and installation note on insulation caps

This bracket is designed for a single auroFLOW exclusiv solar charging station (1x version) and represents a complete, independently installable solution. It is a solid steel structure with an anti-corrosion surface finish, designed to reliably carry the weight of the mounted station, including the filled hydraulic piping of the solar circuit, over the long term. According to expert sources, when ordering and installing this bracket it is advisable to also order separate insulation caps for the connection points of the solar circuit (usually a set of three caps) — in some designs, these caps are not included with the bracket itself but must be ordered separately, to ensure complete insulation of all connection points of the station once mounted on the bracket.

Installation — wall requirements and safety

Given the weight of the bracket and the mounted station (comparable to the equivalent aguaFLOW exclusiv bracket, i.e. roughly around 13 to 14 kg for the bracket alone, plus the weight of the station and filled piping), it is essential to check the load-bearing capacity of the wall at the planned anchoring point before installation, similarly to the fresh water station bracket. For lighter wall structures, a suitable anchoring system must be chosen or the structural solution consulted with a specialist. The installation itself, including the connection of the solar circuit (bringing the heated medium from the roof collectors) and the outlet connection to the allSTOR exclusiv storage tank, must be carried out by a qualified installer experienced with Vaillant solar thermal systems, as incorrect hydraulic or insulation design of the solar circuit could negatively affect the efficiency of heat transfer from the solar collectors.

Compatibility

The bracket is intended for auroFLOW exclusiv solar charging stations marked VPM …/2 S (for example power variants such as VPM 20/2 S or VPM 60/2 S, depending on Vaillant's current range), operated in conjunction with the solar circuit and the allSTOR exclusiv storage tank. Before ordering, we recommend verifying the exact designation of your station, as Vaillant offers several power variants that differ depending on the area of connected solar collectors.

Material

The bracket is made of a steel structure with an anti-corrosion surface finish suitable for the environment of a plant room, where increased temperature or humidity may occasionally be present around the solar circuit, especially during venting or servicing of the solar circuit.

Maintenance

As with the aguaFLOW exclusiv bracket, we recommend that during regular servicing of the solar system (together with checking the solar fluid, solar circuit pressure and the functionality of the station's circulation pump), the condition of the bracket's wall anchoring points and the insulation caps at the connection points be visually inspected, as the solar circuit can reach higher operating temperatures than a standard heating circuit during high irradiation intensity, which places increased demands on the long-term stability of the insulation materials at this location.

Why choose a genuine Vaillant bracket for the solar station

The solar circuit has different operating requirements compared to a standard heating or hot water preparation circuit — especially in terms of possible temperature peaks during high solar irradiation and low heat draw from the storage tank. The genuine Vaillant bracket is designed with these specifics in mind, and in combination with properly installed insulation caps, ensures that the auroFLOW exclusiv solar station will operate with the intended efficiency and reliability throughout its service life.

Solar circuit specifics affecting the design of the bracket and insulation

The solar circuit differs from a standard heating circuit or hot water preparation circuit in several important operating characteristics, which must also be taken into account when designing the supporting bracket and the related insulation of the connection points. Above all, the solar circuit can reach significantly higher heat carrier fluid temperatures than a standard heating circuit during high solar irradiation combined with low heat draw from the storage tank (for example during summer months, when the tank is already sufficiently heated from other sources). This places increased demands on the thermal resistance of all materials near the connection points of the solar station, including the bracket itself and especially the insulation caps on the connections, which must withstand these temperature peaks over the long term without material degradation.

Another specific of the solar circuit is the use of an antifreeze heat carrier fluid (usually a propylene glycol-based mixture) instead of pure water, which also affects the choice of seals and materials at the point where the station connects to the piping. These aspects are taken into account in the design of the genuine auroFLOW exclusiv station and in the recommended design of its connection points on the wall bracket, which is another reason why it is advisable to strictly follow the manufacturer's installation instructions, including the recommended additional order of insulation caps.

When to choose wall mounting of the solar station instead of direct connection to the tank

The decision between direct connection of the auroFLOW exclusiv station to the allSTOR exclusiv tank body (plug & play system) and independent wall mounting on this bracket depends on several factors specific to the project. Wall mounting is recommended especially when the space at the tank body is already occupied by another station or accessory (for example the aguaFLOW exclusiv fresh water station), when the project requires better independent service access to the solar station without restrictions from other components at the tank, or when it is more advantageous from the plant room's space point of view to place the solar station closer to the entry point of the solar piping from the exterior rather than to the tank itself. Otherwise, if there is enough free space near the tank and direct connection does not impose any operating restrictions, it may be simpler and cheaper to choose direct tank connection without the need for a separate bracket.

Comparison of bracket variants for auroFLOW exclusiv

Similarly to the aguaFLOW exclusiv fresh water stations, Vaillant also offers several variants of supporting brackets for the auroFLOW exclusiv solar stations — this 1x bracket for a new installation of a single station, a separate extension part for later addition of a second station to an existing bracket, and a full 2x bracket for a direct cascade installation of two solar stations from the start (for example for large-area solar arrays split into two separate circuits). The choice between these variants follows the same logic as with the fresh water stations — depending on whether the need for a second station is already certain at the initial design stage, or is only expected in the future.

Frequently Asked Questions

Broader context — the role of the solar station in the overall energy concept of the allSTOR exclusiv tank

The allSTOR exclusiv storage tank is designed as a central point to which several heat sources can be connected simultaneously — a heat pump, a gas or other supplementary source, and precisely the solar collectors via the auroFLOW exclusiv station. This concept makes it possible to maximize the use of free solar energy where available (on sunny days), and to supplement the missing output from other sources during periods with insufficient solar irradiation. The auroFLOW exclusiv solar station thus plays a key role in reducing the operating costs of the entire system, as every kilowatt-hour of heat delivered from solar energy means a corresponding reduction in the need for heat from more expensive or more energy-intensive sources.

The decision on wall mounting of the solar station instead of direct connection to the tank should also take into account the routing of the solar circuit from the roof collectors to the plant room — mounting the station on the wall near the entry point of the solar piping into the building can shorten the route of the high-temperature solar circuit inside the building, which can have a favorable effect on the heat losses of this part of the piping. We recommend discussing this consideration with the solar system designer already at the plant room design stage.

Finally, when ordering this bracket, we recommend contacting our sales team with basic information about your solar system (number and area of collectors, planned power variant of the auroFLOW exclusiv station, type and location of the storage tank) — based on this information we will gladly help you verify compatibility, add the necessary insulation caps to your order, and if needed, recommend a suitable variant for a possible future cascade installation of a second solar station.