Long Beach USD McKinley Elem. School Modernization
Project Description:
The McKinley Elementary School campus was modernized with new HVAC, electrical, plumbing, and structural systems to meet current code. The scope of work comprised of five (5) buildings.
Scope of Work:
TMCx was retained by the District to provide commissioning services for new HVAC and EMS equipment and systems to replace deteriorated HVAC mechanical systems. Services include design review and comment, submittal review and comment, and construction and post-occupancy commissioning verification.
Project Snapshot
- Owner: Long Beach USD
- Project Size: 45,400 sq. ft.
- Construction Cost: $9M
- GC: Erickson Hall Construction
- Year of Completion: 2019
Systems:
Systems commissioned includes HVAC (Central Utility Plant, Air handling Units, VAV Terminal Units, Exhaust), Domestic Heating Hot Water, and Electrical Systems
Challenges and Successe
- During installation verification, it was found that all units did not have appropriate motor and economizer fault detection per Title 24 and CEC requirements. This was confirmed by the Engineer of Record. Fault detection will need to be reported either through front end or at local t-stat. TMCx coordinated with the District and tstat manufacturer to provide the specified fault detection.
- During functional testing, TMCx witnessed that the fan coils did not cool on a call for full cooling lowest temp reached was 79 degrees. This line item was missing from response. The GC supplied pictures showing unit discharging 52 deg. air. Issue considered closed. Having fan coil operating correctly with curtail future call backs by mechanical team..
- The TAB report notes multiple deficiencies in air flows relating to exhaust fans and fan coils but they are not noted as deficiencies. An e-mail was sent out noting deficiencies but no updates as of this writing. TMCx understands that the Engineer of Record is requiring speed controllers to resolve these issues. : Units running with-in design parameters is important for occupant comfort and energy efficiency.
