Published articles
ACLogics Journal
Field notes, product thinking, and diagnostic insight built for real service work.
This is where ACLogics explains what we are building, what we are seeing in the field, and how HVAC teams can make faster, cleaner decisions under pressure.
Product & Features Featured
ACLogics v1.1.6: Improved Reporting and Redesigned the UI
ACLogics mobile app v1.1.6 introduces a full-screen report editor, seamless keyboard avoidance, instant step back-navigation, a bottom-bar flashlight, and a cleaner Account Center layout.
AI in HVAC
ACLogics vs. Bluon, MeasureQuick, XOi, and the Rest: An Honest Comparison
The big HVAC apps aren't interchangeable. Bluon is a parts and manuals platform, MeasureQuick reads your probes, XOi documents the job, and ACLogics walks a tech through the diagnosis. Here's how to think about which one you actually need.
AI in HVAC
AI in HVAC
ACLogics vs. Bluon: Which One Actually Helps on a Dead System?
Bluon and ACLogics both put HVAC intelligence in a technician's pocket, but they solve different problems. Bluon tells you what the unit is. ACLogics tells you what to check next. Here's the honest breakdown.
AI in HVAC
Company Updates
ACLogics Is Now on Android
ACLogics is now available on Google Play for Android, alongside the Apple App Store. Same step-by-step HVAC diagnostics, now on whatever phone your crew already carries.
Archive
More from the jobsite, the product floor, and the market.
Product & FeaturesAI in HVACCompany UpdatesBusiness GrowthLeadership & TrainingService OperationsIndustry InsightsPro GuidesTechnical ReferenceTechnical GuidesField GuidesField Stories
Business Growth
Meet Pendly: The Follow-Up Engine for Stuck Home-Service Revenue
Pendly is a new ACLogics product that chases your pending revenue by AI call, text, and email and pushes every stuck job to booked, paid, or closed.
AI in HVAC
A Software Engineer's AC Story Shows Why HVAC Diagnostics Are Debugging, Not Guesswork
A software engineer's broken AC story makes a useful point for HVAC diagnostics: measure first, explain the result, and rule out bad assumptions before replacing parts.
Product & Features
Extreme HVAC Makeover: Retiring a 2010 Relic for the 2026 Daikin Fit!
Retiring an old 2010 Goodman AC and upgrading to the smart, inverter-powered 2026 Daikin Fit. Explore the challenges of advanced diagnostics and how AI guides the modern trade.
AI in HVAC
AI Is Out of the Box. Now the Trade Has to Decide What to Do With It.
A short reflection on why public anxiety about AI is not irrational, and why the real question for HVAC is how to use it with discipline instead of hype.
Product & Features
What to Do When a Diagnostic Step Doesn't Make Sense
ACLogics Keep Asking lets you ask the app a question mid-diagnostic and get a real, step-by-step answer — including refrigerant-specific pressure benchmarks — without leaving the job.
Product & Features
From Field Tool to App Store: What We Learned Building ACLogics
The journey of ACLogics from a fast web app to a fully-featured iOS application for HVAC technicians, the challenges we faced, and our commitment to our users.
Leadership & Training
The HVAC Knowledge Problem Is Not Just a Training Problem
In HVAC, the hard part is not only finding technicians. It is turning a few veterans' invisible judgment into repeatable field logic the rest of the team can use.
Business Growth
What Actually Limits Growth in HVAC
The real limit on HVAC growth is not demand alone. It is whether a company can turn field knowledge into repeatable execution.
Service Operations
The Hidden Constraint Inside Every HVAC Business
The constraint that quietly shapes HVAC performance is not always on the P&L. It often shows up as hesitation inside the service call.
Leadership & Training
Experience Was the Moat. Now It's the Bottleneck.
Experience still matters in HVAC. The problem is what happens when too much of it is trapped inside too few people.
AI in HVAC
Why ACLogics Beats ChatGPT in the Attic
ChatGPT is great at answering trivia, but when you're in a 130-degree attic, you don't need a list of theories—you need an answer that works.
Industry Insights
HVAC Was Never Just a Labor Business
HVAC growth looks like a hiring problem from the outside. In practice, the harder problem is distributing field judgment across the team.
Pro Guides
The Path to HVAC Mastery: How Precision Inputs Elevate Your Diagnostics
Mastery isn't about memorizing every code—it's about expert observation. Learn how precise inputs turn ACLogics into your most powerful tool for career growth.
Technical Reference
A technical reference note documenting heat pump 4-way reversing valve troubleshooting procedures, crossover temperature checks, and Sanhua SHF series specifications.
Technical Reference
Technical Archive: Heat Pump Reversing Valve Diagnostics & Sanhua SHF Specifications
A technical reference note documenting heat pump 4-way reversing valve troubleshooting procedures, crossover temperature checks, and Sanhua SHF series specifications.
Technical Guides
Stop Guessing: How to Achieve a 90%+ First-Time Fix Rate on the Toughest HVAC Diagnostics
Cut diagnostic time from 3 hours to 30 minutes. Learn how AI-powered decision trees help techs master pressure diagnostics and control board failures for a 90%+ first-time fix rate.
Field Guides
Reading Refrigerant Density on Pressure-Enthalpy Charts: A Technician's Guide
Learn how to read refrigerant density on pressure-enthalpy charts as temperature changes. Master the lines that show density variations for accurate HVAC diagnostics and system troubleshooting.
Industry Insights
HVAC AI Diagnostic Software: The Ultimate Guide for Technicians
Everything you need to know about HVAC AI diagnostic software: how it works, why it's changing the industry, and how to choose the right tool.
Technical Reference
A technical reference note documenting ANSI/ASHRAE Standard 55 thermal comfort variables, PMV/PPD modeling, and the August 2012 Appendix errata correction.
Technical Reference
Technical Archive: ANSI/ASHRAE Standard 55 Thermal Comfort Parameters and Appendix Errata
A technical reference note documenting ANSI/ASHRAE Standard 55 thermal comfort variables, PMV/PPD modeling, and the August 2012 Appendix errata correction.
Industry Insights
HVAC AI Diagnostic Software: Revolutionizing Field Service in Dallas-Fort Worth
ACLogics brings AI-powered conversational diagnostics to HVAC field service in Dallas-Fort Worth, helping technicians diagnose faster, reduce callbacks, and deliver professional results.
Technical Reference
A technical reference note archiving compressor crankcase heater testing procedures, off-cycle liquid migration dynamics, and electrical diagnostic parameters.
Technical Reference
Technical Archive: Compressor Crankcase Heater Diagnostics and Protection Standards
A technical reference note archiving compressor crankcase heater testing procedures, off-cycle liquid migration dynamics, and electrical diagnostic parameters.
Industry Insights
The Future of HVAC AI: Why Custom Corpuses and Real-World Testing Are Essential for Next-Gen Tools
The path forward for HVAC AI: custom training data, tool integration, operational data analysis, and real-world validation. How ACLogics aligns with next-generation AI development.
Industry Insights
From Input to Insight: The Power of Analysis and Consistency in AI-Driven HVAC Troubleshooting
How ACLogics's high-performance analysis capability (77% accuracy) and exceptional consistency (95%) transform technician problem descriptions into reliable, actionable solutions.
Industry Insights
Mind the Gap: How ACLogics Bridges LLM Weaknesses in Calculation and Reasoning
While LLMs excel at recall and analysis, they have limitations in calculations and reasoning. Discover how ACLogics's structured approach bridges these gaps for reliable field diagnostics.
Industry Insights
Beyond the Exam: Why GPT-4 Level Knowledge Makes ACLogics an Industry Authority
GPT-4 consistently passes the ASHRAE Certified HVAC Designer (CHD) examination, outperforming half of human examinees. Here's what that means for technicians using ACLogics.
Industry Insights
Harnessing Cognitive Power: AI Diagnosis Without HVAC Sensor Data
How ACLogics leverages powerful cognitive AI capabilities—recall and analysis—to diagnose HVAC problems through user input, eliminating the need for sensor data connections.
Industry Insights
Retraining the HVAC Workforce for the AI Economy
Discover how chat-based AI is retraining HVAC technicians for the AI economy—combining diagnostics, conversation, and continuous learning in the field.
Industry Insights
How AI Is Changing HVAC Diagnostics (and What It Means for Techs)
Discover how AI HVAC diagnostic tools are transforming field service work for technicians. Learn how smart HVAC assistants help techs save time, boost accuracy, and keep customers happy.
Field Guides
Talking to Your Furnace: Why Error Codes Don’t Tell the Whole Story
Error codes are clues, not verdicts. Discover how ACLogics walks technicians through furnace diagnostics step by step—from simple visual checks to advanced sensor testing—saving time, parts, and guesswork.
Product & Features
ACLogics App: The AI Diagnostic Tool Built for Field Technicians
ACLogics App — an AI-powered HVAC diagnostic assistant built for blue-collar pros who need fast, clear, and reliable answers in the field.
Product & Features
Breaking Language Barriers in the Field: ACLogics Speaks Like You Do
ACLogics supports mixed-language input from bilingual HVAC technicians, providing clear diagnostic guidance in Spanish or English without losing technical context.
Product & Features
The HVAC Tech’s New Superpower
The HVAC technician's new superpower is structured decision support: faster triage, better explanations, and cleaner first-time fixes.
Technical Reference
A technical reference note documenting hydronic and electric radiant underfloor heating design, PEX pressure testing SOPs, and ASHRAE Singapore Chapter guidelines.
Technical Reference
Technical Archive: Radiant Underfloor Heating Guidelines and ASHRAE Singapore References
A technical reference note documenting hydronic and electric radiant underfloor heating design, PEX pressure testing SOPs, and ASHRAE Singapore Chapter guidelines.
Field Stories
A Hot Afternoon, A Quick Answer
On a scorching rooftop, a tech uses an ACLogics to wire a VFD motor for three-phase power—clear steps, quick fix, no guesswork.
Field Guides
A rapid North Texas HVAC safety overview covering the code, jobsite, and weather risks that matter before you bid or send a crew.
Field Guides
North Texas HVAC Safety: Ultra-Short Overview (Read Before You Bid)
A rapid North Texas HVAC safety overview covering the code, jobsite, and weather risks that matter before you bid or send a crew.
Technical Reference
A technical reference note archiving COP and EER efficiency formulas, field calculation parameters, and the historical supersession of ARI 330 by ISO 13256-1.
Technical Reference
Technical Archive: Equipment Efficiency Metrics (COP/EER) and the Evolution of ARI 330 Standards
A technical reference note archiving COP and EER efficiency formulas, field calculation parameters, and the historical supersession of ARI 330 by ISO 13256-1.
Industry Insights
Are Plumbers and Home Repair Pros Feeling a Recession?
Home repair demand is shifting, not disappearing. Here is how plumbers and service pros can read the slowdown without missing the long-term opportunity.
Industry Insights
AI Won’t Replace HVAC Technicians, but It’s Driving a Trade Revival
AI can accelerate diagnostics, but the HVAC trade is becoming more valuable because technicians still own the real-world verification and repair.
Product & Features
Smarter Service, Right When It Counts
Field service work moves fast. When a unit fails on a scorching afternoon, technicians need answers immediately. That's why we built our real-time diagnostic system.
Technical Reference
A technical reference note documenting pumpable ice (slurry ice) systems and analyzing component cascade failures caused by neglected air-cooled condensers.
Technical Reference
Technical Archive: Pumpable Ice Technology and Dirty Condenser Failure Cascades
A technical reference note documenting pumpable ice (slurry ice) systems and analyzing component cascade failures caused by neglected air-cooled condensers.
Technical Reference
A technical reference note archiving field calculation methods for subcooling and summarizing Danfoss engineering literature on transcritical CO2 (R-744) refrigeration.
Technical Reference
Technical Archive: Refrigerant Subcooling and Transcritical CO2 Cycles
A technical reference note archiving field calculation methods for subcooling and summarizing Danfoss engineering literature on transcritical CO2 (R-744) refrigeration.
Company Updates
From DFW Heat to AI Insight: Why We Built This Tool
Every company has an origin story. Ours began not in Silicon Valley, not in a sleek accelerator program, but in the sun-baked suburbs of Dallas–Fort Worth.