A five-star hotel, from a single hot-water probe to autonomous AHUs
A hotel where the AHUs run themselves and a wireless probe on the hot-water line shows the engineering team where the gas goes — live, every five minutes.
The Westin Gurgaon, New Delhi
Hot water supply
Water temperature at 00:36
- Type
- Water temp probe
- State
- Active
- Battery
- 83%
- Last reading
- 23 Oct, 00:36
Fig. 1 — Water temperature, last 1 h
Hot-water supply logged, every few minutes
Water, room, CO₂ and energy loggers on one register
Wireless, battery-powered, live on day one
Autonomous HVAC operation across the portfolio
The hotel
The Westin Gurgaon is a five-star hotel in Gurugram's business district: guest floors, a large lobby, ballrooms and restaurants, all served by air-handling units on an existing BMS, and a hot-water system fired by piped natural gas.
The AHUs
SKW EnergyOS runs the hotel's air-handling units the way it runs an office campus: perceiving live state from the BMS, deciding from a physics model, and writing setpoints inside hard bounds the hotel's engineering team set. Ballrooms and function spaces are cooled to how they are used rather than to a fixed timetable; lobbies and corridors are held in band around the clock; operators keep full override.
The hot-water line
Hot water is where a hotel's gas goes, and it had never been measured continuously. A Smart Logger water-temperature probe — wireless, battery-powered, clipped onto the supply line — now reads the loop every few minutes and streams it to the same screen as the hotel's room temperature, humidity and CO₂ loggers and its main energy meter.
The trace is the point. It shows the hours when the loop runs hotter than any guest needs and the overnight stretches when demand is near zero, so the engineering team can trim the setpoint and the firing schedule against evidence instead of guesswork, with the supply still comfortably above what a guest needs at the tap. Savings are reported per site after a full billing cycle.
Why start with a probe
No wiring, no plant shutdown, nothing touching the BMS: the probe is live the day it goes in, and it establishes the baseline that makes the next step — the boilers following demand — a measured change rather than a leap.