Contactor vs TechAI

HVAC tools for the work in front of you. Compare listed refrigerant prices, find suppliers and keep your field information together in Contactor. CALCULATE WITH CLEAR INPUTS Open calculators for superheat, subcooling, airflow, static pressure, electrical values and unit conversions. See the inputs, units and results so you can review each calculation in context. Check assumptions and follow the equipment documentation for the job. FIND SUPPLIERS AND LISTED PRICES Browse nearby supplier information and compare published R-22 and R-410A quotes. Supplier coverage varies by location; listed prices and availability depend on the information provided and may change. Pickup requests are available only with participating suppliers that support bookings. Confirm details directly with the supplier. LEARN AND FIND REFERENCE MATERIAL School brings guided HVAC lessons, explanatory quizzes and EPA Section 608 practice questions. EPA material focuses on United States requirements; practice does not issue certification or replace an approved exam. The manual library shows model, region and revision details with source links; check that a document applies to your equipment. KEEP FIELD WORK ORGANIZED Use equipment records, visit drafts, readings, checklists and service notes in Field desk. Prepared offline copies require setup beforehand. Keep the details you need for a later visit together instead of relying on memory. ASK AND DISCUSS Optional AI Support can help structure a question about symptoms, models and readings. It requires a connection, relevant access and consent; answers can be wrong. The forum provides a place for questions and field discussions. BEFORE YOU START The interface shown is in English; some content may be available in other languages. A translated store listing does not mean every in-app screen or feature is translated. Optional paid features show available prices and terms before purchase. Use appropriate safety procedures and qualified professional judgment. Support: support@decodation.com Support: https://contactor-h-v-a-c-porta-monv1g.web.app/legal/support/ Privacy: https://contactor-h-v-a-c-porta-monv1g.web.app/legal/privacy/ Terms: https://contactor-h-v-a-c-porta-monv1g.web.app/legal/terms/

TechAI is your on-site HVAC and trades assistant. Ask any field question — troubleshooting, error codes, wiring, parts, install and service tips — or snap a nameplate to pull the manufacturer manual, confirm the cover, and keep answering from that book (manuals save on your phone for no-signal jobs). ASK ANY HVAC OR TRADES QUESTION • General HVAC knowledge when you don’t have equipment info • Error codes, diagnostics, and repair guidance • Wiring, parts, and install/service how-tos • Manufacturer tech-support contacts when you ask OR START FROM THE EQUIPMENT • Scan a nameplate or enter brand/model • See unit age when the serial can be decoded • Confirm the manual cover before you trust equipment-specific answers • Confirmed manuals download to your phone — open offline in basements and mechanical rooms • Jump to the page the answer came from when available • Paste a PDF link or upload a manual if search can’t find one Support: techaiquestions@gmail.com Terms & Privacy: https://techaiquestions.carrd.co/