For AI agents: read the machine-readable documentation index at /llms.txt or the single-file full reference at /llms-full.txt.
Form a Business

MC 312 — Heating and Cooling Load Calculations

New York City Administrative Code (current through L.L. 2026/147, enacted September 12, 2026, and amendments effective through October 10, 2026) · NYC Mechanical Code § MC 312

Corpus is an independent public-information project, not the official City of New York website. Stable reference URL

Section MC 312: Heating and Cooling Load Calculations

312.1 Load calculations. Heating and cooling system design loads for the purpose of sizing systems, appliances and equipment shall be determined in accordance with the procedures described in the ASHRAE ACCA Standard 183. Alternatively, design loads shall be determined by an approved equivalent computation procedure, using the design parameters specified in the New York City Energy Conservation Code. Heating and cooling system design loads for the purpose of sizing systems, appliances and equipment shall also comply with the requirements of Section 1204 of the New York City Building Code. Editor's note: For related unconsolidated provisions, see Appendix A at L.L. 2009/085.