VRF Air Conditioning Systems: Vaillant Supply, Design and Installation Across Türkiye

The short answer: as a Vaillant authorised dealer, EFE YAPI VAİLLANT supplies VRF central air conditioning equipment to every province in Türkiye and carries out design, installation and commissioning nationwide. VRF stands for Variable Refrigerant Flow, meaning a variable refrigerant flow rate. Many indoor units are connected to a single outdoor unit; the system varies the refrigerant flow according to what the spaces calling for it need at that moment. Each room, floor or section therefore runs independently on its own setting. When a zone is left empty, the system reduces its capacity and keeps running instead of stopping and starting again; that is why part-load efficiency is high.

Vaillant VRF Central Air Conditioning Systems are published in three component groups. Outdoor units are listed in 30 models and use R410A refrigerant; the total capacity of the system, the space the outdoor unit will occupy and access for service are the starting point of the project. Indoor units cover a capacity range of 7,000 – 96,300 Btu/h. In practice that range means this: a small office room and a large retail floor can both be handled under the same system, each with its own capacity. System accessories consist of control and connection components and are chosen to suit the system design; which accessory is required becomes clear together with the number of zones and the control scenario you want. All three groups can be found on the VRF products page.

The typical application for VRF is a multi-zone building whose usage profile changes from one space to the next: office floors and business towers, hotels, retail stores, restaurants, clinics, schools, and large multi-zone homes and villas. What these buildings share is that different zones generate different needs at the same time. An office on the sun-facing façade may be calling for cooling while the shaded side of the same floor sits at a completely different setting; in a hotel, occupied and empty rooms do not run at the same time. In heat recovery set-ups one zone can be heated while another is cooled, so heat taken from one side of the building is put to use on the other. In a small single-space shop or a flat with a few rooms, by contrast, VRF is larger in scale than the job needs; there the climaVAIR mono and multi split options among our air conditioners are the better answer. For the basic concepts, see what a VRF air conditioning system is.

The difference between VRF and multi split comes up often, and the answer comes down to scale and control flexibility. In both, more than one indoor unit is connected to a single outdoor unit. Multi split targets small and medium-sized spaces with a limited number of indoor units; the installation and the decision-making are relatively simple. VRF brings a large number of indoor units under one system, varies the flow rate with demand from moment to moment, and is built around independent zone-by-zone control. Another practical difference is the space taken by pipework: because distribution in a VRF system runs on refrigerant pipes, it needs less duct and pipe space than conventional central systems. In refurbishment projects where the ceiling void is tight, that turns directly into a question of whether the system can be installed at all. The detail of the comparison is in VRF or multi split.

Let us make our service model clear, because with VRF it matters a great deal who runs the process. Wherever you are, we can run it from start to finish: a survey on site, setting the indoor unit capacities space by space, selecting the outdoor unit and system accessories, installation and commissioning. We set out from our showroom in Ümraniye and travel to the project's province for both the survey and the installation — large commercial projects in Anatolia included; we describe the detail of what installation covers on the air conditioning installation page. If you would rather run the installation with your own mechanical contractor, the process is this: you send us the details of the building and the architectural drawings, we select the equipment together, and we supply the product and ship it to your address, setting out in writing the technical requirements for the pipe routing, the indoor unit positions and the commissioning settings — the things that determine the result in a VRF system.

Let us be clear about price: there are no figures on this page, and that is deliberate. The cost of a VRF project varies with the number and capacity of the indoor units to be connected, the outdoor unit selected, the length and complexity of the pipe routing, the control scenario and the scope of the installation. Two office floors of the same size can be solved with different systems, because the number of zones and the usage profile differ. That is why we give pricing only as an individual quotation, over WhatsApp. In the same way, we make no savings promises expressed as percentages; a realistic assessment can only be made against the load profile and operating hours of your own building. We listed the questions worth asking from the beginning at office and hotel scale in VRF design for offices and hotels.

VRF does not have to define the whole climate control requirement of a building on its own. In projects where a water-based set-up is preferred, or where a particular section is to be handled separately, aroVAIR pro and plus fan coil units step in, in wall, cassette, ducted, console and slim console types. In buildings where heating and domestic hot water have to be handled separately, aroTHERM heat pump solutions come into the picture. Because we work with a single brand, you can discuss which of these components belongs where with one point of contact.

Here is how to proceed. Send the type of building, the province, the total floor area and the number of floors and zones to +90 551 795 3450 over WhatsApp, and we will assess together whether VRF is the right solution. Wherever the project is, we will plan a survey and take on equipment selection, installation and commissioning; if you prefer to use your own contractor, we will be alongside you in equipment selection and supply the product. A reminder here too that we do not offer standalone maintenance, servicing or breakdown repair. For any remaining questions, have a look at the FAQ and blog pages, drop by our showroom at Çamlık Mah. İkbal Cad. Uğurlu Sk. No:35/A, 34774 Ümraniye/Istanbul, or write to us on the numbers on the contact page.