Our team has been involved in many projects where our design experience and review of design documents have uncovered many potential operational errors or specification omissions, which once corrected by the design teams, eliminated the need for construction change orders, schedule overruns, and many other unnecessary added costs to the project.
The below are some examples of real issues and resolution for which ICC team members have successfully resolved working collaboratively with the entire project team:
Village Academy K-8 (Public School)
- During development of the OPR and Design Phase Cx Plan, and our review of the current Specifications, we identified the need for specific flushing procedures for the Chilled Water Piping System, to prevent debris from entering the coils during flushing.Working with manufacture, School district and Engineer, we developed a flushing plan to bypass the coils and contain additional filtration measures prior to coil connections, to prevent the finer debris from settling in the coils after flushing was complete. Based on previous project with similar issues, we estimate savings thru higher coil efficiency and elimination of clogged coils and the associated O&M service post construction. It was deemed so effective that the Engineer updated their specifications library to include this on ALL future projects.
- Identified over 50’ of TDC Ductwork installed without Ductmate Gasket on Return Duct running thru unconditioned space with high relative humidity. Screws and clips installed making it appear complete. Working with the T&B contractor we estimated the leakage to exceed 250 CFM @ 90% Humidity (Equivalent to cooling an additional 2 tons load that would have been otherwise paid for by the school)
- Identified CEP pumps (External Chiller Yard) required protective V-Ring for exterior applications to prevent moisture infiltration thru the pump motor shaft. Working with the Engineers submittals and the contractor, had the correct V-rings installed. Left undiscovered, it was estimated life of the pump motor could have been reduced by up to 10 years.
- Identified 2nd & 3rd Stage heaters would not initialize. Checklist completed by contractor stated otherwise, later revealed Contractor only tested 1st stage heating.
DGN Towers III (Public Senior Housing & Administrative Bldg.)
- Working with the Architect & Ownerin development of the OPR, we identified security / access issues between back of house service areas and corridors and main public areas. Based on our recommendations doors where relocated at strategic locations eliminating unwanted migration during routine or emergency maintenance.
- Working effectively with the Design Engineerwe identified scope gaps in the execution section of the Commissioning Specifications during functional testing for HVAC and Electrical Systems and the OPR requirements for 100% testing, resulting in elimination of potential Construction Phase Change Order.
- Observed piping to coils which prevents coil access without significant removal of the piping systems. Working with the owner, contractor and engineer, we recommended revisions to the current installation detail to ensure clarity on remaining installation to allow for minimum O&M effort.