Skip to main content
Full Stack HVAC Full Stack HVAC

NIST HVAC-Cx

by National Institute of Standards and Technology

Last updated Mar 29, 2026 · 1 revision

Free NIST semi-automated commissioning tool for HVAC fault detection using expert rules applied to BMS data for AHUs, chillers, and terminal units.

NIST HVAC-Cx - by National Institute of Standards and Technology - Commissioning & Diagnostics Software software - logo 5.4 Good See breakdown →

Highlights

32 Features6 Integrations

Capabilities

Free Free Tier
Buy from National Institute of Standards and Technology Visit website

Media

www.nist.gov
NIST HVAC-Cx - website image

About This Product

HVAC-Cx is a semi-automated commissioning software tool from NIST designed for HVAC performance analysis in commercial buildings. Analyzes large amounts of data from building energy management systems, applies fault detection expert rules for air handling units, chiller loops, and terminal units, and presents simplified diagnostic results in graphs and tables.

Capabilities

How this product is delivered and what's included out of the box.

Mobile app
Not available
Free trial
No
Free tier
Yes
Public API
No
Deployment
On Premise

FSH Score Breakdown

Ease of Use
5.0
Features
6.9
Support
5.0
Value
6.0
Integrations
4.5
AI Capabilities
1.5

Customer Reviews

Features

32 features confirmed across 9categories· Showing confirmed capabilities only

Equipment & Asset Management9features

1 Minute Data Interval CollectionAir Handling Unit Performance AssessmentBACnet IntegrationBuilt-In Diagnostics and Fault ReportingFault Code Detection And NotificationProactive System Health MonitoringRemote DiagnosticsProvide diagnostic assistance through a list of possible causes for each fault detectedRemote MonitoringPassive surveillance of system operation
Show 1 more
Chiller EvaluationChiller loop performance assessment

Reporting & Analytics5features

ReportingGraphical User Interface (GUI) for diagnostic reportsAnalyticsData analysis from building energy management systems (BEMS)Dual Commissioning Report GenerationGraph and Table Data VisualizationPerformance Analysis for Mechanical Equipment

Compliance & Safety5features

Automated Commissioning ValidationBuilding Systems AnalysisFunctional Performance Test Module (FPTM)Functional Performance Testing (FPT) and Ongoing MonitoringHVAC CommissioningPre-built functional performance test scripts

AI & Automation4features

Automated Fault Diagnosis with GraphsAnomaly DetectionAir-handling unit (AHU) fault detectionAutomation RulesSupport custom rules introductionAI SupportDiagnostic Assistance

Platform & Customization3features

Custom Scripting SupportDocument ManagementAutomated documentation of test resultsData ImportCSV Data Import

Mobile & Field Tools2features

Image And Video Upload For TroubleshootingAR VisualizationIntuitive Visualization

Technician Management2features

Automated Quality AssuranceActive testing using customizable test scriptsTraining CoursesBACnet Integration

Scheduling & Dispatch1feature

Assign Users to Scheduling Rules Policies

Training & Education1feature

Building Automation & ControlsReal-time interaction with BACnet systems

Integrations 6 across 3 categories

Industry-Specific 3
BACnet Native
Modbus Native
Niagara Framework Native
Productivity 2
Google Sheets CSV
Microsoft Excel CSV
Data & Automation 1
Microsoft Power BI API

Pricing

Model
Free
Starting at
Contact for pricing
Notes
HVAC-Cx is a free software tool developed by the National Institute of Standards and Technology (NIST). No commercial licensing or subscription fees.

Similar Commissioning & Diagnostics Software Tools

Compare all →

Other tools in the same category. Compare to find the best fit.

Bluon HVAC App logo

Bluon HVAC App

Bluon Inc.

7.2 - Excellent

HVAC technician diagnostic app with 500,000+ equipment models, AI troubleshooting, and live tech support

Freemium · Free Free Tier PE-Backed
Resideo Pro App logo

Resideo Pro App

Resideo Technologies

6.9 - Good

Contractor app for Honeywell Home thermostat installation, registration, diagnostics, and warranty management

Free · Free Free Tier Strength: 55
MeasureQuick logo

MeasureQuick

MeasureQuick

6.9 - Good

HVAC diagnostics reimagined

Freemium · $49/mo Free Trial Free Tier Strength: 95
iManifold logo

iManifold

North Park Innovations (Stride Tool)

6.8 - Good

Smart HVAC diagnostics with equipment profiling

Freemium · $10/mo Free Trial Free Tier Strength: 100
Compare with all similar Commissioning & Diagnostics Software tools