Manufacturer Installation Guidelines

LEED v4 EAc1 — Enhanced Commissioning / ASHRAE Guideline 36

Enhanced LEED commissioning requires post-occupancy trend data collection to verify systems continue to operate as designed after the building is occupied. Without trend data, there is no evidence that control sequences are performing correctly under actual load conditions. A minimum of 10 months of seasonal performance data is required.

LEED v4 EAp1 / ASHRAE Guideline 0-2019

Enhanced LEED commissioning requires an independent commissioning authority (CxA) — not the installing contractor — to verify all systems meet design criteria. The CxA must review submittals, witness testing, and document that systems perform per the Owner's Project Requirements (OPR). Without independent verification, LEED commissioning credits cannot be claimed.

Manufacturer Installation Guide

Window AC units must tilt slightly outward (about 1/4" to 1/2") to allow condensate to drain outside. A perfectly level unit will pool water inside and potentially leak into the room.

NEBB / AABC Procedural Standards

All TAB work must be documented on proper report forms recording design CFM, measured CFM, and final adjusted CFM for every outlet. Without documentation, the work cannot be verified or submitted to the engineer for approval.

NIST SP 800-82 / ASHRAE Guideline 36 — Cybersecurity

BAS controllers must be on a segregated network (VLAN or separate physical network) with firewall protection from general IT traffic. Default passwords must be changed, and access should be restricted to authorized personnel. NIST SP 800-82 provides cybersecurity guidelines for industrial control systems. Unsecured BAS devices have been exploited in real attacks to disrupt building operations and gain access to corporate networks.

OSHA 1910.119(e)(6)

This fails OSHA PSM requirements. OSHA 1910.119(e)(6) explicitly requires that the Process Hazard Analysis be updated and revalidated at least every 5 years. The plant's PHA is now 7 years old and 2 years past the mandatory revalidation deadline. The revalidation requirement exists because process conditions, equipment condition, personnel, and industry knowledge of hazards change over time, even without intentional process modifications. Additionally, incident investigations, near-misses, and new regulatory guidance since the original PHA may reveal hazards not previously identified. The 5-year revalidation is mandatory regardless of whether process changes have occurred.