What Remote Monitoring Actually Catches Before It Becomes a Service Call October 30, 2026 Remote monitoring lets you and your technician see glycol temperatures, pressure and flow from anywhere, so problems get caught earlier. “The best service call is the one you never have to make” is a good line for an email. It’s also, technically, the design philosophy behind remote monitoring — and it’s worth explaining what that actually looks like in practice, because “smart chiller” gets thrown around loosely in this industry. “Remote monitoring isn’t about replacing a technician’s judgment,” said Paul Johnson, Director of R&D and Technology. “It’s about giving that judgment better data, earlier. A tech who gets called out for a system that’s already down is working reactively. A tech who gets an alert that a pressure trend has been climbing for six days is working ahead of the problem.” Trend versus alarm That distinction — trend versus alarm — is the core value of monitoring done right. A traditional alarm tells you a threshold was crossed. A monitored system tells you a value has been moving in the wrong direction, which means someone can schedule a fix on their own timeline instead of scrambling on the vendor’s. How monitoring changes maintenance planning In practice, this changes maintenance planning more than it changes any single repair. Facility and plant managers stop reacting to failures and start scheduling interventions — which means parts get ordered before they’re urgent, and labor gets scheduled during planned downtime instead of unplanned downtime. “From a support standpoint, remote data changes the first five minutes of every call,” said John McCoy, Tech Support Manager. “Instead of asking the customer twenty questions to figure out what’s happening, we’re already looking at the trend data before we pick up the phone. That alone cuts diagnostic time significantly on most calls.” The operational case for monitoring The operational case for monitoring comes down to three things: earlier trend identification, faster alerts when something does need attention, and better maintenance planning built on real data instead of a fixed calendar interval. None of that eliminates the need for a skilled technician — it just means that technician is working with better information, sooner. Frequently asked questions What does remote monitoring track on a G&D chiller? G&D’s remote monitoring displays glycol supply and return temperatures, pressure and flow, and sends text alerts for abnormal conditions. A web-based interface lets you check the chiller from your phone. The tService platform adds email notifications, data logging, reports, graphs and live trends. Does remote monitoring replace a technician? No. Remote monitoring gives a technician better data, sooner. A skilled technician is still needed to diagnose and fix a problem. Monitoring simply means that technician is working with better information. Can I add remote monitoring to a chiller that isn’t a G&D? Yes. The Simple Monitoring Solution (SMS) is built for retrofit and works on all brands of chillers. It shows fluid supply and return temperatures, with optional add-ons for fluid pressure, flow rate and reservoir level. Learn what our remote monitoring package tracks and how alerts are configured. Learn About Monitoring →