LEED v4 EAp1 / ASHRAE Guideline 0-2019

Industry Standard Color Code

Y (cooling) wire should be Yellow, not Blue. Blue is reserved for C (common) wire. Incorrect color coding causes confusion during service calls and violates industry standard.

ISO 14644-1

Clean rooms require HEPA (99.97% @ 0.3 micron) or ULPA filtration. Standard fiberglass filters are pre-filters only and cannot achieve the particle counts required for any clean room classification.

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.

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.

Manufacturer Installation Guidelines

Thermostat wire connections should use proper terminal blocks or crimp connectors, not wire nuts. Wire nuts on 18 AWG thermostat wire often lose connection over time due to vibration.

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.