# HVAC AI: Tools & Simulator — AI Tools for PLC Diagnostics > AI Tools for PLC Diagnostics (iPhone/iPad app by RODRIGO DIAZ.) - Source: https://appshunter.io/ios/app/hvac-ai-tools-and-simulator/id6747603414 (this page in markdown: same URL + `.md`) - Developer: [RODRIGO DIAZ](https://appshunter.io/developer/1575990541) - Category: Utilities, Developer Tools - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 15.0 · 390 MB - Languages: English - Released: 2025-07-01 - Data updated: 2026-08-15 - User reviews in markdown: https://appshunter.io/ios/app/hvac-ai-tools-and-simulator/id6747603414/reviews.md ## What is HVAC AI? HVAC AI is the all-in-one app for HVAC technicians, engineers and students. Diagnose faults, read error codes, calculate refrigerant values, and replace your old laminated PT chart with the Refrigerant Slider AI. Carry one professional HVAC toolbox in your pocket instead of juggling manuals, charts and separate apps. DIAGNOSE FAULTS IN MINUTES Scan the unit, enter refrigerant pressures or temperatures, and capture key readings. In seconds the app delivers probable causes, step-by-step repair instructions and preventive maintenance tips. From refrigerant charge problems in heat pumps to airflow and wiring errors in VRF systems, HVAC AI cuts the guesswork on every service call. SMART HVAC TOOLS Refrigerant Slider AI (digital PT chart) for dozens of refrigerants, including R22, R410A, R32, R134a and R1234yf. Superheat and subcooling calculators to charge precisely and protect compressors. Smart wiring simulator to validate diagrams before energizing. Universal HVAC remote to control multiple air conditioner brands. Carbon tracker and energy optimizer to cut energy use. NEW: INTERACTIVE HVAC SIMULATOR Practice on a full refrigeration cycle simulator with compressor, condenser, evaporator and expansion valve. Change the refrigerant, adjust the setpoint and watch the system respond in real time. Perfect for students, apprentices and technicians who want to master the cycle without risking real equipment. NEW: LEARNING PATH AND CALCULATORS Follow a gamified HVAC learning path with levels, quizzes, practice tests and achievements, and prepare for certification exams. The built-in calculators cover BTU, cooling and heating load, airflow, CFM, tonnage, duct sizing and refrigerant charge, so you always have the right number on site. NEW: PRO QUOTE BUILDER Create professional quotes and PDF service reports from the field in seconds. Use the scanner and QR codes to track each unit, capture the client's digital signature, and share by message instantly. Multi-currency support helps you quote anywhere. 24/7 AI TECHNICAL SUPPORT The built-in AI assistant interprets error codes, guides superheat and subcooling adjustments, helps with wiring and sensor calibration, and recommends efficiency improvements tailored to the system. WHY CHOOSE HVAC AI Diagnose faults in minutes, not hours. Replace paper PT charts with the Refrigerant Slider AI. Calculate superheat and subcooling accurately. Train on the interactive simulator and learning path. Run professional calculators for any job. Quote and report like a pro from the field. FOR HVAC PROFESSIONALS EVERYWHERE HVAC AI adapts to residential, commercial and industrial work: split systems, multi-split, VRF and rooftops, walk-in coolers, freezers and supermarket refrigeration, furnaces and heat pumps. Whether you install, repair or maintain air conditioning and refrigeration systems, HVAC AI gives you the diagnostics, tools, simulator, training and quoting you need. WORKS FOR EVERY MAJOR BRAND Look up fault codes and service guidance for Daikin, Carrier, Trane, Rheem, York, Mitsubishi, LG, Samsung and more. The brand code database keeps growing with every update, so the answer you need is ready when you are on site. BUILT FOR THE FIELD Most tools work without a signal, so you can calculate, check the PT chart and run the simulator in basements, rooftops and mechanical rooms. Large inputs and clean layouts mean less tapping and more working. HVAC AI is designed to be fast, reliable and genuinely useful on a real job, not just in the office. Download HVAC AI today and transform the way you diagnose, repair, learn, quote and optimize HVAC systems. ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Annual Subscription | $57.90 | per year | | Annual Offer | $46.49 | per year | | Weekly Offer | $5.69 | per 7 days | | Weekly | $5.69 | per 7 days | ## Version history (last 2 releases) ### 1.1 — 2026-06-19 This is our biggest update yet. We rebuilt HVAC AI to be your go-to app on every job. NEW: Interactive HVAC simulator See the full refrigeration cycle in real time: compressor, condenser, evaporator, expansion valve, solenoid and filter drier. Change the refrigerant, adjust the temperature, and tap any component to pause or reactivate it and watch the system respond. Perfect for understanding faults, alerts and real conditions without risking equipment. NEW: Learning paths and certification Learn and get certified in HVAC systems with a gamified path by levels, with streaks, achievements and rewards. Progress through HVAC Essentials, Commercial Refrigeration and VRF, and earn your completion certificate with a verifiable ID and QR code. NEW: Smart equipment scanner Identify real faults from a photo of your unit. Detect equipment, save your findings and build your technical collection. Every detected unit adds to your progress and is saved with its status, brand, serial and catalog number. NEW: AI tools Universal scanner and universal calculator in one place, plus system diagnostics, refrigerant charging, and airflow and balancing. Brand support: Daikin, Carrier, Trane, York, Lennox, Mitsubishi Electric and more. NEW: Refrigerant slider Analyze refrigerants, pressure and temperature in seconds, with safety group, GWP, critical temp and more. Scan the unit's nameplate and get the values instantly. NEW: PRO quote builder and PDF reports Document every HVAC job and create professional PDFs in seconds: Quick Service, PRO Quote, Express Diagnosis, Corrective Report and Premium Maintenance. With client details, equipment, photo evidence, signature and folio number. NEW: Scheduling and management Schedule your technical visits, maintenance, quotes, follow-ups and reminders. Log every job and keep your full service history in one place so nothing slips through the cracks. Also: a faster diagnosis engine, an expanded brand fault-code database and stability improvements. Thanks for using HVAC AI. Tell us what we should build next! ### 1.0 — 2025-07-01 No release notes. ## More apps by RODRIGO DIAZ - [Sticky Panda: Sticking Over It](https://appshunter.io/ios/app/sticky-panda-sticking-over-it/id1575990539) - [PLC AI: PLC Ladder Simulator](https://appshunter.io/ios/app/plc-ai-plc-ladder-simulator/id6476665383) All apps by RODRIGO DIAZ: https://appshunter.io/developer/1575990541 ## Related topics [hvac calculator heat](https://appshunter.io/ios/topics/hvac-calculator-heat) · [allday hvac calc](https://appshunter.io/ios/topics/allday-hvac-calc) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-15.*