Every technical claim points to a primary source. Acceptable sources, in order of authority:
Manufacturer install and service manuals (Carrier, Trane, Lennox, Daikin, Mitsubishi, Rheem, Hussmann, Heatcraft).
ACCA Manual J, S, D, T for residential and light commercial; ACCA Manual N for commercial load.
ASHRAE Handbook, Standard 62.1, 90.1, 180.
U.S. EPA Section 608, AIM Act phase-down rule, ENERGY STAR criteria.
U.S. Department of Energy commercial efficiency guidance.
AHRI directory and certification ratings.
Alabama mechanical and electrical code, current edition.
AI disclosure
Some drafting on this site uses AI tools. Every line is reviewed and rewritten by a human technician before publish. We do not pass AI hallucinations to readers. If a page reads like a chatbot wrote it and nobody fixed it, that is a bug — email us and we will fix it.
Corrections policy
Find an error? Email dispatch@emergencyhvacrepairpros.com or call dispatch. Substantive corrections — wrong code reference, wrong refrigerant, wrong equipment spec — get a dated correction note on the page. Minor edits (typos, formatting) get fixed silently.
Ethics
We do not invent technicians, certifications, awards, or review counts.
We do not publish flat-rate pricing online. Every quote is on-site, in writing, before any wrench turns.
We do not promise response times we cannot deliver. Dispatch tells you the truth on the call.
We do not run scare-tactic copy or fabricated urgency banners.
We do not buy reviews or stage photos.
We do not publish AggregateRating or Review schema. Period.