Commercial
Chiller Systems

Commercial Chillers in North Texas: Types, Costs, and Maintenance

When a building is too large for rooftop units, chillers are the answer — but choosing the right type and maintaining it properly is where most building owners need guidance. Let me break down what you need to know about chillers in the North Texas market.

Air-cooled chillers run $50,000-$200,000 installed and are the best fit for buildings under 200 tons of cooling capacity. They're the most common chiller type we install in North Texas office buildings and medical facilities. No cooling tower needed, which means lower maintenance complexity and no water treatment costs. The tradeoff is efficiency — when ambient temperatures exceed 100°F (which happens regularly here from June through September), air-cooled chiller efficiency drops 15-20%.

Water-cooled chillers cost $75,000-$500,000+ but deliver significantly better efficiency, especially during our brutal summers. They need cooling towers, which means water treatment is critical with North Texas's mineral-heavy water supply. You'll find water-cooled systems in large office complexes, hospitals, and data centers where energy costs justify the higher upfront investment. For buildings over 200 tons, water-cooled is almost always the right call.

Chiller maintenance is not optional — it's the difference between a 25-year system and a 15-year system. Budget $2,000-$8,000 per year for preventive maintenance depending on system size. That covers oil analysis, refrigerant testing, tube cleaning, and electrical inspections. Skip it, and you're looking at $20,000-$50,000 repair bills when compressor bearings fail or condenser tubes corrode through.

The most common chiller failures I see in North Texas come down to three things: refrigerant leaks from vibration-loosened fittings (especially on reciprocating and scroll compressors), condenser coil fouling from cottonwood seeds during May and June (this one catches everybody off guard), and compressor bearing wear from frequent startup surges — which is why variable-speed drives are worth the investment.

If you're planning a chiller replacement, start the process 6-12 months ahead. Lead times for commercial chillers are currently running 12-20 weeks from order to delivery. Emergency replacement means renting temporary cooling at $5,000-$15,000 per month while you wait — plus the rush charges on installation. Plan ahead, and you control the timeline and the budget.