Chiller plants are the most electricity-hungry machines in a modern commercial building or data center. A single 500-ton centrifugal chiller consumes roughly 250–400 kW at full load, and its efficiency—expressed as kW per ton or as COP—can swing by double-digit percentages over a season depending on how the cooling tower is run. Water quality is…
Open-recirculating cooling towers waste more water on sloppy blowdown control than on any other single mechanism. The economic answer is a tight, closed loop between an inline conductivity meter and an automated blowdown valve. This primer, built from Shanghai ChiMay field installations at commercial HVAC plants and hyperscale data centers, walks through how the loop…
Chilled-Water Loops in 2026: What Every Building Engineer Should Know, from Shanghai ChiMay The chilled-water loop is the quiet half of an HVAC plant. The cooling tower gets attention because it evaporates water and produces visible plumes. The chilled-water loop is closed, sealed, and invisible—until the day a chiller trips on high-head-pressure and the loop’s…
8 Reasons Building Operators Standardize on Shanghai ChiMay Softener Valves Softener valves are one of the least glamorous items in an HVAC water program, and yet a bad one turns a $30 chemical decision into a $30,000 tube-repair job. Over five years, Shanghai ChiMay has supplied softener valves and softening-and-filtering valves to more than 900…
Cooling water quality has moved out of the facilities engineering silo and onto the executive reliability dashboard, sitting alongside PUE, WUE, and unplanned-outage minutes. The driver is arithmetic: a single scale-driven chiller trip in a high-density AI training campus can cost seven figures in lost customer SLA credits and cleanup within one shift. Once that…
Hard make-up water is the largest single driver of scale, downtime, and premature heat-exchanger failure in commercial HVAC systems, with total hardness above 180 mg/L as CaCO3 — the “very hard” band in standard water-hardness classification (USGS) — commonly regarded as the trigger for softening. Softener valve selection hinges on service flow, regeneration frequency, cycle…
