Chiller plant FDD + machine learning
Cut chilled water energy waste before buying new equipment.
FacilityConneX finds the faults driving up plant cost, then learns how your chillers, pumps, cooling towers, and controls perform together. Your team receives clear, plant-specific recommendations for lowering energy use and improving reliability.
Use the BAS data and equipment you already have. Initial optimization recommendations typically begin after 30–60 days of learning. Read on for the benefits, how it works, and the technical details.
Same cooling. Less energy. Fewer surprises.
Improve the performance of the equipment you already own while giving your team clearer priorities.
13–16%
targeted average reduction in chilled water energy after recommendations are implemented
Six to eight months
typical first-year payback described for suitable plants
30–60 days
of plant data before initial optimization recommendations
90+ plants
using the underlying optimization algorithms worldwide
Why plants waste energy
Your plant may be meeting demand—and still costing more than it should.
Chilled water plants are often commissioned for one set of design conditions. Loads, weather, equipment, and staffing change. The control strategy frequently does not.
01
Setpoints
Fixed condenser water temperatures and staging points leave savings behind whenever weather or load differs from design.
02
Hidden control faults
Broken resets, drifting approach temperatures, short cycling, and sensor problems can raise kW/ton without triggering a useful alarm.
03
Equipment working against itself
Chillers, pumps, and cooling towers have different efficiency curves. Improving one component in isolation can increase cost elsewhere.
04
Limited capital
Major plant replacements compete for multiyear budgets. Control improvements can unlock value from equipment already in place.
05
Unproven savings
Without continuous measurement and verification, leadership cannot see whether an efficiency project is still delivering.
06
Knowledge walking out the door
When experienced operators retire, years of plant history and tuning knowledge can leave with them.
A clear answer
What is chilled water optimization?
Chilled water optimization is the continuous improvement of a plant’s control strategy—including condenser water temperature and flow, chiller sequencing, staging setpoints, and load balancing—so the plant produces the cooling the building needs at the lowest practical energy cost.
FacilityConneX combines optimization with chilled water Fault Detection and Diagnostics (FDD). That means faults are identified and prioritized before new setpoints are recommended, helping savings persist instead of optimizing on top of a broken sensor, failed reset, or short-cycling compressor.
Optimization algorithms powered by Exergenics and integrated with the FacilityConneX platform.
What’s in it for you
Lower operating cost. Fewer surprises. Better capital decisions.
Reduce energy expense
Identify where chilled water energy is being lost and prioritize the control changes with the greatest financial impact.
Catch problems earlier
Continuous checks identify equipment and control issues before they compound into comfort complaints, failures, or emergency work.
Extend equipment life
Reduce short cycling, improve load balancing, and sequence machines more intelligently to limit unnecessary mechanical wear.
Give technicians a priority list
Rank findings by energy and operational impact so teams know where to focus limited time first.
Prove results
Use continuous measurement and verification to support sustainability reporting, leadership updates, and utility incentive applications.
Model capital scenarios
Evaluate plant expansion or chiller replacement against actual operating data before committing budget.
Fault detection and whole-plant optimization—working together.
That combination is the central difference. Most solutions either expose faults or tune setpoints. FacilityConneX correlates both, then supports the customer through implementation and ongoing verification.
01
Fix before you optimize
Component-level FDD validates the plant foundation so the optimization model is not learning from failed resets, bad sensors, or inefficient equipment behavior.
02
Savings from software and controls
Recommendations are applied through the existing BAS. For plants with the required trend data, the approach normally avoids new chillers, drives, or sensor packages.
03
Your plant—not a generic benchmark
Machine-learning models use your load, weather, equipment, and operating data, then retrain as seasons and plant conditions change.
04
Vendor-agnostic by design
Analytics are based on equipment type rather than manufacturer and work across air- and water-cooled chillers, multiple BAS platforms, and more than 200 protocols.
05
Recommendations your team can act on
Results identify what is wrong, why it matters, what it may be costing, and the control strategy change to consider—not another unprioritized dashboard.
06
Experts and M&V included
FCXperience reviews combine software findings with commissioning and energy expertise, ongoing measurement, and help pursuing applicable utility incentives.
How the value is created
Two layers of analytics. One prioritized view.
Component-level FDD
Continuously detects scheduling, sensor, compressor, flow, pressure, approach-temperature, sequencing, short-cycling, economizer, and downstream-demand problems.
System-wide optimization
Evaluates how the plant works together and recommends condenser water temperature and flow resets, chilled water supply temperature resets, sequencing, staging, and dynamic load balancing.
One prioritized view: findings from both layers, ranked by energy and operational impact.
- 1Condenser water temperature resetOptimization
- 2Chiller compressor short-cyclingFDD
- 3Chiller sequencing & stagingOptimization
FacilityConneX analyzes individual components and their interactions across the entire chilled water system.
A practical path to savings
From connection to recommendations in about 60 days.
If FacilityConneX already monitors the plant, optimization can be added to the existing connection.
Week 1
Connect
Establish a secure, IT-approved connection and gather plant nameplate and available trend data.
Days 1–30
Detect
FDD begins identifying faults while the optimization model learns plant behavior.
Days 30–60
Recommend
FCX engineers review initial results and plant-specific control strategy recommendations.
Your pace
Implement
Your team or controls contractor applies approved changes through the existing BAS.
Ongoing
Verify and refine
Continuous M&V, monthly FDD reviews, and periodic model retraining sustain results across seasons.
Technical evaluation
Chilled Water Systems Fault Detection and Optimization
Review the monitored components, machine-learning approach, data requirements, deployment process, and expected outcomes.
- FDD and system-wide optimization scope
- Chiller, tower, pump, and loop analytics
- Required and optional trend data
- Implementation timing and ROI assumptions
Technical specification
For facility, energy, controls, and engineering teams
PDF · 877 KB
Frequently asked questions
Chilled water optimization FAQ
How much energy can chilled water optimization save?
FacilityConneX projects an average 13–16% reduction in chilled water energy after recommended changes are implemented. Actual savings depend on plant configuration, current performance, data quality, and the changes approved by the customer.
Do we need to buy new sensors or equipment?
Not normally when the required BAS trend data is already available. The recommendations focus on control strategy changes implemented through your existing BAS and control systems. Data availability is confirmed during evaluation.
How long before we see results?
Fault detection begins after connection and configuration. Machine-learning optimization typically requires 30–60 days of continuous data before initial recommendations.
What is the difference between FDD and optimization?
FDD identifies equipment and control problems. Optimization evaluates how the whole plant works together and recommends better setpoints, sequencing, flow, and load balancing. FacilityConneX correlates both in one prioritized view.
Will it work with our chiller brand and BAS?
The analytics are based on equipment type rather than manufacturer and cover air- and water-cooled chillers. FacilityConneX supports more than 200 connection protocols for BAS, DCS, and SCADA environments.
Who implements the recommended changes?
Your facility team or controls contractor reviews and applies approved control changes. FacilityConneX engineers explain the recommendations and continue measuring results.
What is the benefit of chilled water optimization algorithms using machine learning (ML)?
Your plant runs and changes over time. ML algorithms learn and adapt to those changes, providing a better understanding of their impact. This creates a continuous monitoring and return-on-investment approach. Studies tend to be static; this approach provides a closer-to-real-time view of what is really happening.
Start with your plant—not a sales pitch.
Find out what your chilled water plant could save.
Share basic plant information and available BAS trends. FacilityConneX can help determine whether FDD and optimization are a strong fit and where the largest opportunity may be.
Prefer to talk now? Call +1 774.234.2334 or email sales@facilityconnex.com.