PepsiCo

PepsiCo is a global consumer packaged goods company with a legacy of more than 125 years. Timeline: May 2023 to October 2023. H&H Mechanical installed office and production HVAC systems including 4 Carrier VAV RTUs, zoning, a make-up air unit with CO/NO2 controls, and BACnet i-Vu controls in Lisbon, Wisconsin.

Scope of Work

H&H Mechanical Contractors provided and installed:

H&H Mechanical provided and installed the following systems for office and production areas:

• 4 Carrier VAV RTUs for office and production areas, with associated supply and return ductwork
• 4 RTU roof curbs
• All necessary natural gas piping serving the RTU units
• 17 VAV boxes in the office area for zoning
• Carrier BACnet i-Vu control system for the HVAC system throughout office and production areas
• All associated ductwork and controls for the VAV system
• 1 make-up air (MUA) unit with interlocked exhaust system and CO/NO₂ controls
• 1 gas-fired unit heater
• 1 ductless split system serving the office IT room

Results

This project included completion and commissioning of a new construction HVAC system made up of multiple packaged rooftop units supplying a variable air volume (VAV) air distribution system. RTUs were crane-set and anchored per structural and manufacturer requirements, with supply, return, relief, and outside air ductwork installed and sealed to SMACNA class standards. Roof curb installations were verified for level, weather integrity, and vibration isolation.

Each RTU was started up and commissioned, including verification of fan rotation, VFD operation, belt alignment, and motor amperage. Economizers were calibrated, outside air minimums were set, and safety and functional checks were completed. Supply duct static pressure control was tuned to maintain design setpoints under varying load conditions, and heating and cooling performance was verified against submittal data.

VAV terminal units were installed with factory-calibrated airflow sensors and pressure-independent control dampers. Minimum ventilation airflow and occupied/unoccupied setpoints were programmed and verified, and terminal units were balanced to design CFM. Zone sensors and controllers were calibrated and integrated into the building automation system (BAS) to coordinate RTU and VAV operation.

The project also included a make-up air unit and interlocked exhaust system with CO/NO₂ controls, supporting safe ventilation control aligned with building conditions. Comprehensive testing, adjusting, and balancing (TAB) and functional performance testing confirmed proper sequencing, stable system operation, and reliable delivery of conditioned air throughout the facility.