Integrated climate solutions – cooling, heating & hydraulics from a single source
Modern refrigeration and heat pump systems are essential for the energy-efficient operation of ventilation and air-conditioning units. At Rox-Klimatechnik, we offer individually designed solutions tailored precisely to your project and building type – from office complexes and production facilities to clinics and schools. Our air handling units (AHUs) can be flexibly combined with various cooling and heat pump systems: from directly connected external heat pumps and indirectly connected chillers or cold water systems, to fully integrated exhaust air heat pumps built into the unit. The focus is always on a combination of efficiency, sustainability, and quality "Made in Germany". With environmentally friendly refrigerants, intelligent control systems, and high-quality manufacturing, we help you reduce energy costs and CO₂ emissions over the long term – supporting your sustainability goals.
- What cooling capacity does my project require?
The required cooling capacity depends on several factors: building use, size, insulation standard, internal loads, and climate conditions. We calculate and design each system individually – ensuring a perfectly dimensioned solution that is neither oversized nor undersized. Our team will gladly assist with sizing and technical planning. - Are Rox systems eligible for subsidies?
Yes – many of our systems qualify for funding under BAFA or KfW programs. We focus on energy-efficient technologies that meet funding criteria and, upon request, provide support with the application process. This allows you to reduce your investment costs sustainably. - Which refrigerants are used?
We use modern, environmentally friendly refrigerants with a reduced global warming potential (GWP) – including natural refrigerants. The refrigerant is selected based on the specific project and application – always considering efficiency, legal requirements, and environmental impact. We are happy to advise you on the best options for your project.
Rely on Rox-Klimatechnik as your experienced partner for customized refrigeration and heat pump systems – offering top-tier quality, precise planning, and reliable service from a single source.
- Direct expansion (DX) systems
- Hydronic systems
- Integrated HVAC systems
- Other hydronic systems
Rox AHUs with directly integrated cooling or heating systems feature a direct evaporator or condenser installed within the unit’s airstream.
The outdoor unit is either installed separately or mounted together with the AHU on a common base frame. These monoblock systems combine all essential components – heat recovery, fans, filters, and controls – in a space-saving configuration. They allow for fast, straightforward installation and are ideal for buildings with limited space availability.
Your advantages at a glance:
- Exceptionally compact design without additional water-based systems
- Reduced planning and installation effort
- Quick and easy setup thanks to minimized interfaces
- Low investment and maintenance costs – ideal for small to medium capacities
- Factory-tested, integrated control system
- High energy efficiency through optimized components and direct heat exchange
- Versatile application – e.g. in restaurants, hotels, office buildings, schools, and retail spaces
In this approach, heating or cooling energy is generated by externally installed heat pumps or chillers (CHW/HW systems) and transferred into the AHU via water-based coils. The systems are hydronically connected, often including buffer tanks, mixing valves, or pump groups.
Advantages:
- Flexible system architecture: Allows connection of multiple energy sources and consumers
- Independent of airflow and air volume
- High serviceability and easy expandability
- Efficient use of heat recovery and energy management systems
Applications: Ideal for larger buildings, industrial facilities, renovation projects, or complex energy centers with centralized heating/cooling networks.
Integrated systems from Rox combine the AHU, heat pump, control unit, electrical cabinet, and hydraulic components within a single housing. The complete refrigeration circuit is factory-installed, tested, and ready for connection. Thanks to this integration, there is no need for external piping, additional equipment, or complex coordination on site.
Advantages:
- Plug-and-play installation saves time and minimizes potential errors
- No on-site refrigeration circuit assembly required
- Factory test run ensures quality and functionality
- Compact solution – ideal for tight installation spaces or rooftop units
Applications:
Particularly suitable for hospitals, schools, hotels, gastronomy, and anywhere a fast implementation and high level of system integration is required.
Our pre-assembled pump groups, mixing and distribution stations ensure low-loss, controlled transfer of heating or cooling energy to the air coils within the AHU. Thanks to their compact design, they can be integrated directly into the unit housing or pre-mounted on a base frame.
Key components at a glance:
- Pump groups for CHW/HW systems or run-around coil systems (RAC)
- Hydraulic separators to decouple primary and secondary circuits
- Buffer tanks to absorb load peaks and increase operational reliability
- Mixing and diverting valves for precise temperature control
Advantages:
- Reduced installation effort thanks to plug-and-play assembly
- Factory-tested for tightness and functionality
- Perfectly matched to heating and cooling generators
- Minimal space requirements, high operational safety
