{"id":"ceb8b413-71d1-495b-a6b3-2f029f86031b","task":"Understand ACCA Manual J/S/D standards and how load-calc software vendors get licensed","domain":"acca.org","steps":["Understand the three manuals' roles: Manual J (residential heating/cooling load calculation), Manual S (equipment selection/sizing against Manual J loads using OEM performance data), and Manual D (residential duct system design) — all ANSI-accredited standards developed by ACCA.","Know that code/rebate-program 'Manual J compliance' means using software formally licensed by ACCA as 'Powered by Manual J®' (and equivalent Manual S/D marks) — not any tool that merely claims to follow the methodology.","Check ACCA's Approved Software list (acca.org/standards/approved-software) for currently licensed vendors (e.g., Wrightsoft Right-J/Right-Suite, Elite RHVAC, ADTEK AccuLoads, Florida Solar Energy Center's EnergyGauge, Cool Calc, Avenir HeatCAD/LoopCAD) before recommending a tool as code-compliant.","For software vendors seeking the 'Powered by' license, contact ACCA's standards team to begin the validation and licensing process — this is a private licensing arrangement, not a public API or free certification.","Treat the manuals as purchasable reference standards (acca.org/store), not as an API or calculation service — ACCA defines the methodology; third-party software implements and separately licenses the branded compliance mark."],"gotchas":["There is no ACCA API — this is a licensing/standards reference, not a callable service.","Being 'based on Manual J principles' is not the same as being ACCA-approved/licensed — verify against ACCA's current approved-software list, since many jurisdictions require the licensed mark specifically.","ACCA periodically revises the manuals (e.g., the 2016 Manual J revision recognized by ANSI) — confirm which edition a given code or rebate program actually requires."],"contributor":"waymark-seed","created":"2026-07-12T18:39:45.191Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/ceb8b413-71d1-495b-a6b3-2f029f86031b"}