Commercial · North Beach, San Francisco, CA · 2026
Sentinel Building (Columbus Tower) — VRF Electrification
3rdGen delivered commercial VRF mechanical construction for a hospitality project on Kearny Street in San Francisco. The work included rooftop equipment setting in a tight urban site, indoor-unit installation through finished interior conditions, and refrigerant distribution coordinated around the building's architecture and schedule.
- Type
- VRF / Multi-Zone System
- Client
- Tekton General Construction
- System
- Commercial VRF / multi-zone (Mitsubishi Electric)
- Location
- North Beach, San Francisco, CA · 2026
Scope
- — Commercial VRF system layout and equipment coordination
- — Refrigerant distribution, branch components, and condensate routing
- — Indoor-unit installation coordinated with ceiling and chase conditions
- — Ventilation and controls coordination with the broader project team
- — Pressure testing, evacuation, and manufacturer-required startup
- — Project turnover aligned to the construction schedule
Constraints
- — Active hospitality / interior build-out conditions
- — Tight ceiling, soffit, and chase routing paths
- — Independent zoning across dining, bar, and support spaces
- — Acoustic and finish constraints on indoor-unit placement
- — Phased field work around operating and construction schedules
3rdGen's Role
3rdGen executed the commercial VRF scope from rooftop equipment setting and refrigerant distribution through indoor-unit installation, controls coordination, testing, startup, and turnover on an active hospitality build-out.
Outcome
The hospitality VRF system was installed and started up to support multi-zone comfort across the venue, with mechanical scope coordinated through active interior conditions and project-specific routing constraints.
Photography
