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I write about chiller systems and how to evaluate them for a project. My guides cover water-cooled chillers and heat pump chillers, from working principles to selection and maintenance questions. I aim to help readers compare equipment against the stated load, water conditions, operating schedule, and service needs.
Water-Cooled Chiller Guide: How It Works, Selection, and Maintenance
Updated July 2026 Quick Specs: What This Guide Covers System boundary Chilled water, refrigerant circuit, condenser water, and final heat rejection Comparison basis Same duty, rating method, temperatures, load point, and auxiliary-power scope Site evidence Load profile, water analysis, meter…
Heat Pump Chiller Guide: How It Works, Types, and Evaluation Questions
Updated July 2026 Quick Specs: What This Guide Covers Possible outputs Chilled water, hot water, or both, depending on architecture Common layouts Reversible two-pipe and separate four-pipe circuits Core evaluation basis Loads, water temperatures, source conditions, controls, and system boundaries…
Ceiling Mounted Air Handler Installation and Maintenance Guide
A ceiling mounted air handler is an indoor air-handling unit positioned in an overhead ceiling zone. It can free floor space, but it places service work, drainage, isolation, and access above the occupied zone. This guide is for commercial project…
Make-Up Air Unit (MAU): A Design, Air-Balance, and Commissioning Guide
Make-Up Air Unit equipment isn’t simply a fan that brings outdoor air into a building. It’s part of the relationship between exhaust, replacement air, pressure objectives, air treatment, duct resistance, controls, and the way a facility actually operates. Treating it…
What Is an Air-Cooled Chiller? Working Principle, Types, Applications, and Selection Guide
Updated July 2026 | reviewed by Koven Air Environment Technology Co.,Ltd technical team. An air cooled chiller is a vapor-compression chiller system that extracts heat from chilled water, glycol, or another process fluid and rejects that heat to ambient air…
