Xiogenix

Xiogenix is an innovator, manufacturer, supplier, and production partner in the biomedical sciences industry. Their work supports cell and gene therapy and tissue banking manufacturing. Timeline: June 2023 to March 2024. H&H Mechanical Contractors completed the HVAC installation and system commissioning for Xiogenix’s 78,675 sq. ft. office and industrial facility in Muskego, Wisconsin.

Scope of Work

H&H Mechanical Contractors provided and installed:

H&H Mechanical provided and installed HVAC equipment, ductwork, and controls for the office and production areas, including:

• 7 Carrier VAV RTUs for office and production areas
• Associated supply and return ductwork for RTU systems
• 7 RTU roof curbs
• Natural gas piping serving RTU units
• 23 VAV boxes for zoned airflow and temperature control in the office area
• Carrier BACnet i-Vu control system for HVAC controls throughout office and production
• All associated ductwork and controls for the VAV system
• 3 gas-fired unit heaters
• 2 furnaces and air conditioners with associated supply and return ductwork
• 1 ductless split system serving the office IT room

Results

This project included substantial completion and commissioning of the HVAC air distribution systems, built around a variable air volume (VAV) design to support zone-level temperature control and precise airflow regulation.

VAV terminal units were installed as pressure-independent devices with integral airflow measurement stations, modulating dampers, and actuator assemblies, following approved shop drawings and manufacturer requirements. Inlet and discharge duct connections were installed, sealed, and supported to maintain design airflow and reduce system losses, with ductwork sealed and insulated per SMACNA pressure class specifications.

Each VAV terminal unit was programmed and verified, including:

Airflow sensor calibration

Damper stroke and actuator response checks

Verification of minimum ventilation, occupied/unoccupied, and maximum airflow setpoints

Where applicable, reheat components were installed and tested. Control valves were stroked, and discharge air temperature limits were verified to prevent overheating or stratification. Zone sensors and controllers were calibrated and networked into the building automation system (BAS) to support coordinated operation between terminal units and upstream air-handling equipment.

Testing, adjusting, and balancing (TAB) confirmed VAV terminals achieved design CFM within allowable tolerances. Functional performance testing validated stable airflow control across varying load conditions and reliable system response to space temperature demand.

The completed installation supports dependable zone temperature control and efficient HVAC performance throughout the Xiogenix facility.