Mechanical and Electrical Engineering Design in Jacksonville FL

S3DA Design provided mechanical and electrical engineering services for an approximately 3,100-square-foot office building in Jacksonville, Florida. The project required coordinated HVAC, lighting, power distribution, and low-voltage infrastructure to support a functional, comfortable, and energy-conscious workplace.

S3DA’s Scope

Electrical Engineering

• Evaluated the use of the existing electrical service or the need for a new incoming service from the utility transformer.
• Designed the electrical distribution system, including the main distribution board, sub-distribution panels, and final branch circuit panelboards.
• Developed interior lighting, exit-sign, and building façade lighting layouts.
• Designed lighting control systems.
• Located new electrical outlets and associated rough-ins.
• Provided electrical power connections for HVAC units and miscellaneous building equipment.
• Coordinated low-voltage system rough-ins based on the owner’s requirements.

Mechanical and HVAC Engineering

• Designed a new HVAC system for the office building.
• Performed heating and cooling load calculations.
• Designed HVAC air distribution, including supply and return air devices.
• Prepared an HVAC air distribution plan.
• Provided restroom exhaust fan design.
• Developed the mechanical equipment schedule.
• Established air-balancing requirements to support consistent indoor comfort.

Key Challenges and Solutions

Designing building systems for a compact office environment requires careful coordination between electrical distribution, lighting, HVAC equipment, ductwork, and ceiling-mounted devices. S3DA’s mechanical and electrical engineers coordinated these systems to minimize conflicts, use the available space efficiently, and provide practical layouts for construction and plan review.

The electrical design also considered both the potential reuse of the existing service and the installation of a new service, allowing the final solution to respond to verified site conditions and utility requirements.

The Result

S3DA delivered a coordinated mechanical and electrical design package supporting occupant comfort, dependable power distribution, effective lighting, restroom ventilation, and future low-voltage infrastructure. The integrated engineering approach helped streamline coordination, reduce potential field conflicts, and prepare the project for an efficient permit and construction process.