A chiller is one of the most expensive and longest-lived air conditioning investments in a building. That is why the choice of brand should be evaluated not only on the initial price but together with the energy, maintenance, and spare parts access over the years. In this article we introduce chiller brands in groups and explain the technologies they use and the comparison criteria.
What groups are chiller manufacturers divided into?
Chiller manufacturers can be grouped as large international companies producing across a very wide capacity range, European manufacturers specialized in hydronic systems, Asian brands standing out with modular and inverter solutions, and local manufacturers.
| Group | Brands | Key feature |
|---|---|---|
| Large international manufacturers | Carrier, Trane, York (Johnson Controls), Daikin Applied (McQuay) | From small to very large capacities; centrifugal and large screw chillers |
| Italian and European specialist manufacturers | Climaveneta and RC Group (part of Mitsubishi Electric), Aermec, Rhoss, Clivet (Midea group), Galletti, Blue Box, Swegon | Hydronic systems, heat pump chillers, data center cooling |
| Asian brands | LG, Samsung, Midea, Gree, Haier, Mitsubishi Heavy Industries | Modular scroll chillers, inverter screw chillers |
| Local manufacturers | Üntes, Alarko Carrier, Kaltra, İmbat | Local production, short delivery, and process cooling solutions |
What compressor technologies are used in chillers?
The compressor type has the greatest influence on a chiller's capacity, efficiency, and maintenance approach. Most manufacturers do not make the compressor themselves; they source it from compressor manufacturers such as Bitzer, Copeland, Danfoss, Hanbell, Refcomp, and Fusheng. This directly affects spare parts availability.
| Compressor type | Typical capacity | Note |
|---|---|---|
| Scroll | Small and medium | Modular, staged operation with multiple compressors; easy to replace |
| Screw | Medium and large | Long-lived; bearing and rotor overhaul is possible |
| Centrifugal | Large, usually water-cooled | High efficiency at high capacity |
| Oil-free centrifugal with magnetic bearings | Medium and large | High efficiency at part load; no oil circuit |
| Reciprocating | Small, older units | Increasingly rare in new chillers |
For compressor brands and overhaul options, see our compressor brands and compressor overhaul pages.
Which refrigerants are used?
For many years R134a and R410A were common in chillers. With the shift to refrigerants with low global warming potential, R32, R513A, R1234ze, R454B, and in some models R290 (propane) have started to be used. The refrigerant affects the unit's efficiency, pressure class, maintenance requirements, and future gas availability. So always ask about the refrigerant type when comparing quotes.
How are chiller brands compared?
Chiller quotes should be compared on part-load efficiency, capacity under real operating conditions, noise and placement, controls and automation, service and parts support, and heat recovery options.
01Part-load efficiency (IPLV, ESEER, SEER)
A chiller runs below full capacity for most of the year. That is why IPLV or SEER values, which show part-load efficiency, give a more realistic comparison than the full-load EER value. Details are in our chiller efficiency article; for calculation, we have our IPLV and COP calculator.
02Capacity under real operating conditions
The capacity of air-cooled chillers drops at high outdoor temperatures. Make sure the capacity in the quote is given at your region's summer design temperature and the required water temperatures. For selection, see our air-cooled or water-cooled article.
03Noise and placement
For chillers to be installed on a roof or near residential buildings, sound level and fan speed control matter. The installation area should also account for avoiding hot air recirculation around the condenser.
04Controls and building automation
Sequencing of multiple chillers, pump control, and connection to building automation (BACnet, Modbus) are provided by the brands' control boards. Check compatibility with your automation infrastructure from the start.
05Service and spare parts
The availability of compressors, electronic boards, frequency drives, and sensors determines how many days a chiller stays down in case of a fault. In hospitals, data centers, and process cooling especially, this criterion is as important as efficiency.
06Heat recovery and heat pump option
Some chillers can also heat as a heat pump or use condenser heat to produce hot water. In buildings that need both heating and cooling, this option lowers operating costs.
Would you like an assessment of your existing chiller?
We measure efficiency, compressor condition, and spare parts access, and present repair and replacement options in writing.
Old chiller: change brands or overhaul?
For an old chiller, the decision depends on the condition of the compressor and heat exchangers, refrigerant availability, and access to spare parts. With a compressor overhaul and evaporator and condenser repairs, the unit can keep running efficiently for a long time. For units whose parts are unavailable or whose efficiency has dropped a lot, a new chiller may be more economical; the existing water piping and fan coils can often be kept.
Which chiller brands does YOİ Mühendislik service?
As an independent technical service, we do periodic maintenance, fault diagnosis, compressor overhaul, and commissioning on all chiller brands. For the maintenance scope, see our chiller maintenance page.
Brand names belong to their owners. YOİ Mühendislik is an authorized service and sales point for LG; for other brands it provides maintenance, fault, and repair services as an independent technical service. Model and serial information may vary by manufacturer and market; for current information, refer to the manufacturer's Türkiye sources.
Frequently asked questions
Which chiller brand lasts longer?
Lifespan is determined less by brand than by correct selection, water quality, regular maintenance, and operating conditions. Chillers that are maintained regularly and have their compressors overhauled on time keep running for a long time, whatever the brand.
Can a compressor of a different brand be fitted to a chiller?
In some cases an equivalent compressor can be used; however, compatibility of capacity, refrigerant, oil, and controls must be verified through an engineering assessment.
When the chiller is replaced, are the fan coils and piping also replaced?
Generally no. The hydronic piping and fan coils can be kept; the new chiller's flow rate, pressure drop, and connection compatibility are checked.
Local or foreign chiller?
There are good examples in both groups. The decision should be made by comparing part-load efficiency, capacity under real conditions, and service and spare parts support.