HVACProSales Knowledge Center
Professional HVAC resources, OEM parts guides, commercial procurement information, international buying support, supplier resources, calculators, and technical documentation.
Browse by category below or use the quick links to find what you need.
Resource Categories
HVAC Buying Guides
Comprehensive selection guides for mini splits, air handlers, commercial refrigeration, ice machines, and HVAC tools. Designed for contractors, facility managers, and commercial buyers.
Technical Resources
Engineering and compliance documentation covering SEER2, R-454B, R-32, R-410A phaseout, EPA regulations, AHRI and ASHRAE standards, and voltage compatibility for international buyers.
OEM Parts Library
Identification guides, cross-reference tools, superseded part number indexes, and replacement guides for motors, contactors, control boards, and compressors from leading OEM manufacturers.
Commercial Procurement
B2B purchasing resources for facility managers, government buyers, hospitality procurement teams, and healthcare facilities. Covers RFQ process, bulk pricing, and volume discount programs.
Supplier Resources
Resources for HVAC manufacturers, distributors, and dealers looking to expand their online distribution through HVACProSales. Covers onboarding, API integration, MAP compliance, and product feed requirements.
International Buyers
Export guidance, freight forwarder selection, voltage compatibility, warranty considerations, and OEM parts sourcing for international contractors, distributors, and facility managers.
HVAC Tools & Calculators
Interactive professional tools including BTU calculators, mini split sizing guides, SEER2 savings calculators, voltage converters, refrigerant replacement finders, and OEM part cross-reference tools.
Quick Access — Commercial Resources
Editorial Standards & Transparency
All content on HVACProSales is researched using manufacturer documentation, AHRI, ASHRAE, EPA, and DOE standards. We maintain full editorial independence — no paid rankings, no sponsored content.