Air conditioning systems at DAS Company cover the complete range of residential, commercial and industrial cooling and heating solutions — wall-mount split units for residential rooms and small offices, ceiling cassette and ducted indoor units for commercial open-plan offices and retail spaces, floor-standing units for shop fronts and reception areas, and VRF/VRV multi-split systems for hotels, multi-zone office buildings and large commercial installations where centralised refrigerant distribution serves multiple indoor units from a single outdoor condenser. All systems supplied feature DC inverter compressor technology — the industry standard providing variable-speed cooling output that precisely matches actual room demand, delivering 30–40% energy saving versus fixed-speed compressor systems while maintaining tighter temperature stability and significantly quieter operation.
Modern air conditioner systems supplied by DAS Company use R32 refrigerant — the single-component HFC with GWP of 675 (approximately one-third the GWP of the legacy R410A refrigerant at 2088), the European market standard since the EU F-Gas Regulation (EU) 2024/573 came into force in March 2024 progressively restricting high-GWP refrigerants in new equipment. All systems carry CE marking, ErP energy efficiency labelling (typically A++ to A+++ rating) and F-Gas refrigerant handling compliance for legal installation in EU member states by certified F-Gas refrigeration engineers.
Wall-mount split air conditioners are the highest-volume product category in the air conditioning market — single indoor unit paired with single outdoor unit installations serving individual rooms in residential apartments, hotel rooms, small offices, retail spaces and meeting rooms. Standard capacities cover 9,000 BTU (2.6 kW), 12,000 BTU (3.5 kW), 18,000 BTU (5.3 kW) and 24,000 BTU (7.0 kW) — matched to room sizes from approximately 15 m² (9,000 BTU) up to 50 m² (24,000 BTU) depending on insulation, glazing, occupancy and solar gain. DC inverter technology is standard across all current-specification wall splits — the compressor modulates its speed continuously to match cooling load rather than cycling on and off, providing energy efficiency, temperature stability and quiet operation that the previous generation of fixed-speed splits could not deliver.
Current-generation wall-split features include Wi-Fi connectivity (smartphone app control, scheduling, and integration with Amazon Alexa, Google Home and Apple HomeKit voice assistants), multi-stage filtration (HEPA filtration for fine particulate, activated carbon for odour, antibacterial coatings on heat exchanger surfaces), sleep mode (programmed temperature drift through the night to prevent over-cooling), turbo mode (maximum cooling output for rapid room temperature reduction on return to a hot building), self-cleaning (automated condensate evaporation and antibacterial cycle to prevent mould growth in the indoor unit) and low ambient operation (continued heating operation in heat pump mode down to -15°C or -25°C outdoor temperature, essential for heating mode application in Eastern European winters). The IP24 indoor unit and IP24 outdoor unit ratings are standard; outdoor units carrying IP25 splash-proof rating provide additional protection for installations in exposed locations.
Ceiling cassette indoor units are designed for installation in suspended ceiling grids — providing four-way air distribution from a single ceiling tile-sized unit that distributes conditioned air uniformly across the room without visible wall-mount equipment. Standard cassette sizes match common ceiling grid dimensions (600×600mm and 840×840mm) for direct installation in standard commercial ceiling systems. Compact cassette units (600×600mm Mini Cassette) are ideal for small commercial spaces, individual offices and meeting rooms where a wall split would be aesthetically intrusive. Full-size cassettes (840×840mm) provide higher capacity (up to 14 kW) for larger open-plan offices, retail spaces and restaurants. The four-way blade design provides individually adjustable airflow direction for each of the four sides — preventing direct airflow onto specific desks or seating positions whilst maintaining overall room conditioning.
Ducted indoor units (concealed ducted, slim ducted, mid-static and high-static variants) install above suspended ceilings or in service voids — distributing conditioned air through ductwork to multiple ceiling grilles in the served space. Ducted installations provide the most aesthetically clean indoor environment with no visible air conditioning equipment, only ceiling grilles — preferred for premium retail spaces, hotel rooms, corporate boardrooms and architecturally sensitive interiors where visible AC units would be unacceptable. Static pressure capability is critical for ducted units — low-static (slim) ducted for short duct runs and minimal pressure drop, mid-static ducted for typical ceiling void installations with multiple grilles, and high-static ducted for installations with extended duct runs, filtration accessories or multiple branched zones requiring elevated pressure capability.
VRF (Variable Refrigerant Flow) and VRV (Variable Refrigerant Volume) systems are the air conditioning technology of choice for large commercial buildings with multiple zones requiring individually controlled cooling and heating — typically hotels (separate room control), multi-tenant offices (different occupancy schedules per tenant), retail malls (separate shop unit zones) and multi-storey buildings (separate floor and zone control). VRF systems consist of a single outdoor condensing unit (or modular outdoor units linked in series) serving multiple indoor units (typically 6 to 64 indoor units per outdoor system depending on system size) through a refrigerant pipe network — eliminating the multiple separate outdoor units that traditional individual split systems would require for the same building.
VRF systems provide three principal commercial advantages over individual split installations. Centralised refrigerant management through one outdoor unit (or modular bank) significantly simplifies building exterior aesthetics — particularly important for premium commercial buildings where rows of individual outdoor split units would be aesthetically unacceptable on building facades. Heat recovery operation (3-pipe VRF systems) enables simultaneous cooling and heating of different zones — recovering heat from zones requiring cooling (server rooms, south-facing offices) and transferring it to zones requiring heating (north-facing offices, perimeter zones), substantially reducing building total energy consumption versus simultaneously operating separate cooling and heating systems. Centralised control and monitoring through BACnet, Modbus and KNX gateways enables VRF system integration with building management systems (BMS) for centralised operation, energy monitoring, fault detection and remote diagnostics — the essential capability for facilities managers operating large commercial portfolios.
Modern air conditioner systems function as reversible heat pumps — providing both cooling in summer and heating in winter from a single system that reverses refrigerant flow direction depending on demand. Heat pump heating operation extracts heat from outdoor air (even at sub-zero temperatures) and transfers it to indoor air — providing 3–4 kW of heating output per 1 kW of electrical consumption (COP of 3–4), significantly more energy-efficient than direct electric heating (COP of 1) and competitive with natural gas heating in many European climates. The SCOP (Seasonal Coefficient of Performance) rating quantifies heating efficiency averaged across a typical European heating season; modern A+++ heat pumps achieve SCOP values of 5.0 or above for the most efficient models.
Cold-climate heat pump operation has been the principal technical development of the past decade — low-ambient heat pumps now operate effectively down to -25°C outdoor temperature without auxiliary electric resistance heating, providing whole-winter heating capability in Eastern European, Scandinavian and Alpine installations. This capability has positioned air-to-air heat pump air conditioners as a primary heating system replacement option alongside their conventional cooling function — particularly relevant for new-build residential and commercial properties where eliminating separate gas heating systems reduces installation cost and ongoing maintenance.
The EU F-Gas Regulation (EU) 2024/573 (in force since March 2024) progressively restricts the use of high-GWP fluorinated refrigerants in new air conditioning equipment — driving the industry transition from R410A (GWP 2,088) to R32 (GWP 675) and to newer A2L blends including R454B (GWP 466). R32 is the established European market standard for residential and light commercial split air conditioners — single-component refrigerant simplifying refrigerant management compared to blended alternatives, lower GWP than R410A providing direct compliance with current and near-term regulatory limits, and improved thermodynamic properties enabling smaller system charges (15–25% less refrigerant volume than R410A for equivalent capacity). R32 is mildly flammable (A2L safety classification under ISO 817) — requiring trained F-Gas certified installers to handle, install and service R32 equipment in compliance with EN 378 (refrigerating systems and heat pumps — safety and environmental requirements).
For commercial buyers, the F-Gas regulation has two practical implications. First, installation requires F-Gas certified refrigeration engineers — this regulatory requirement is enforced by member state F-Gas regulations and cannot be bypassed by general electrical contractors regardless of competence on other systems. Second, existing R410A installations remain legal to operate but face progressively limited service refrigerant availability and rising R410A service costs — driving replacement-with-R32 economics on equipment approaching end-of-service-life. DAS Company supplies air conditioners exclusively in current-specification R32 refrigerant for new installations.
EU ErP (Energy-related Products) Regulation mandates energy efficiency labelling on all air conditioning equipment sold and installed in EU member states — covering cooling efficiency (SEER — Seasonal Energy Efficiency Ratio) and heating efficiency (SCOP — Seasonal Coefficient of Performance). The labelling scale runs from A+++ (highest efficiency) through A++, A+, A, B and lower categories — with new equipment regulations progressively raising the minimum acceptable label class for new installations. Modern DC inverter split air conditioners with R32 refrigerant typically achieve A++ to A+++ efficiency ratings for both cooling and heating operation — providing energy consumption typically 30–50% below the older A-rated and B-rated equipment they replace. For commercial buildings targeting EPC (Energy Performance Certificate) ratings of A or B, the air conditioning system efficiency rating is a significant input variable to the building energy assessment — making A+++ rated equipment increasingly specified for new commercial development and major refurbishment projects.
Correct air conditioner specification depends on five primary factors. Room size and cooling load (BTU/hr or kW requirement calculated from room dimensions, occupancy, equipment heat load, solar gain through glazing and insulation level) — typically 100–125 BTU per m² for standard insulated rooms. Installation type (wall-mount split for individual rooms with external wall access, cassette for suspended ceiling installations, ducted for concealed installation, floor-mount for installations without ceiling void or external wall, VRF for multi-zone commercial buildings). Heating requirement (heat pump operation specification — most current systems are reversible cooling-heating, but cold-climate variants are required for installations where outdoor temperature regularly falls below -15°C). Energy efficiency target (A+++ for new commercial development, A++ acceptable for residential refurbishment, A+ acceptable for cost-optimised lower-priority applications). Refrigerant compliance (R32 is now standard for new equipment, eliminating end-of-life refrigerant supply concerns over the system service life). DAS Company's engineering team provides system selection support — calculating cooling and heating loads, recommending appropriate capacity and configuration, and confirming compliance with applicable regulations.
DAS Company provides competitive B2B pricing for air conditioning equipment across Europe. Product categories with available pricing include wall-mount split units (9,000 BTU through 24,000 BTU, DC inverter, R32, with and without Wi-Fi), ceiling cassette indoor units (mini cassette and full-size 840×840mm), ducted indoor units (slim, mid-static and high-static), floor-mount and ceiling-mount indoor units, complete multi-split system kits (1×outdoor with 2, 3, 4 or 5 indoor units), VRF outdoor units and VRF indoor unit ranges (cassette, ducted, wall, floor mount for commercial VRF applications) and VRF system controls and BMS gateways. Volume pricing is available for hotel, office building and apartment complex project supply. Contact our sales team for application sizing support and project quotations.
