Did you remember to...? List of things it's best not to forget on a project
I really appreciate this set of "Lessons Learned" on the Life Support Facility (Building M6-490) at NASA's Kennedy Space Center in Florida. Frank, revealing, sometimes obvious, but interesting nonetheless.
- Firestopping and backerboard fire retardant paint did not meet LEED requirements.
- Missing floor concrete sealer specification—should ensure that all specs are kept for LEED compliance.
- Should allow for maintenance training on plumbing fixtures (i.e. waterless urinals, dual flush toilets, etc.).
- Proper use of AHU1.Air-handling units (AHUs) are mechanical indirect heating, ventilating, or air-conditioning systems in which the air is treated or handled by equipment located outside the rooms served, usually at a central location, and conveyed to and from the rooms by a fan and a system of distributing ducts. (NEEB, 1997 edition) 2.A type of heating and/or cooling distribution equipment that channels warm or cool air to different parts of a building. This process of channeling the conditioned air often involves drawing air over heating or cooling coils and forcing it from a central location through ducts or air-handling units. Air-handling units are hidden in the walls or ceilings, where they use steam or hot water to heat, or chilled water to cool the air inside the ductwork. and occupancy sensors is critical—found some sensors to be missing.
- Easy to overlook required trending and specifications for the HVAC Controls.
- Must have all proper controls interface cards for HVAC equipment.
- Proper control sequencing for HVAC equipment was not always available during Occupied mode.
- Contractor should pay for additional Commissioning Authority (CxAThe commissioning authority (CxA) is the individual designated to organize, lead, and review the completion of commissioning process activities. The CxA facilitates communication among the owner, designer, and contractor to ensure that complex systems are installed and function in accordance with the owner's project requirements.) time if controls & equipment are not ready when scheduled.
- CxA should provide a formal briefing prior to equipment start-up to ensure everything is ready to operate.
- Commissioning should be scheduled through NASA only after all controls and equipment have been installed.
- A Measurement & Verification (M&V) Plan must be drafted prior to bid, so bidders can price the correct M&V option.
- Make sure to acquire subpower meters for Measurement & Verification (M&V) of lights, HVAC and process loads.
- Use of a control system designed with iLons may not be LEED friendly; limited fixed memory offered by iLons make necessary trending difficult and a more flexible design may be required.
- Teamwork is crucial to project success.
The full case study is available for BuildingGreen Suite members on BuildingGreen.com.
Anyone else have a similar "lessons learned the hard way" list to share?