San Antonio, Texas

This project included design and construction services for the complete renovation of an existing equipment space for a new telephone switch to support cellular services. The project included the installation of a new 40,000 CFM air handling & duct distribution, DDC control systems, lighting, power distribution, and an early warning firing detection. In addition, mechanical and electrical systems were designed with N+1 redundancy.

As the prime contractor for the project, we provided construction management, on-site supervision, contract management, and material acquisition. Construction management services included preparing detailed method of procedures (MOP’s) for all construction tasks that had a potential of affecting service to existing live telecommunication equipment. This included all electrical tie-ins, air handling system interconnections, and tie-ins to the existing chilled water mains.

The project scheduling was continually updated and tracked using Microsoft Project scheduling software. During weekly construction meetings, we reviewed the project schedule, designed installation, and reviewed job site safety.

The control systems monitored the operation of mechanical & electrical distribution equipment and notified building operators of any failure. Redundant systems are automatically activated in the event of a system failure.

The entire project was phased, including replacement of HVAC systems without a service interruption to adjacent areas. This required close coordination with all involved parties to ensure that events occurred in sequence, and that each subcontractor had material and labor needed to complete the task.

We provided all system commissioning for the project which included point-to-point verification and N+1 functional testing of the Andover building controls.

Fire and smoke detection systems included addressable early warning fire detection and Very Early System Detection Alarm (VESDA). These devices were tested and verified for alarm transport to AT&T’s central NOC.

Air and hydronic balancing included variable air volume air handling system with chilled water cooling, served from a central chilling plant. All balancing was completed in accordance with NEBB practices and procedures.