Commercial HVAC. Heat exchangers. Air handling.

Heat exchangers combine multiple processes: tube bending (custom configurations), tube sheet machining (precise hole pattern for tube insertion), manifold machining, brazing or welding for assembly. For copper-aluminum plate-fin exchangers: specialty brazing required. For shell-and-tube: traditional manufacturing with tight tolerance on tube holes. We coordinate multi-process HVAC heat exchanger manufacturing.

ASHRAE standards govern HVAC performance. Manufacturing compliance: meet specified dimensional tolerances, follow materials of construction requirements, achieve specified performance ratings through proper manufacturing. We manufacture to customer specifications; customer validates ASHRAE performance. For equipment certification (AHRI, ASHRAE), customer holds certification.

HVAC heat exchangers often combine copper tubes with aluminum fins — classic residential/commercial cooling. Assembly: hydraulic expansion of copper tubes into aluminum fins (no brazing — mechanical expansion). Galvanic corrosion is a concern — copper-aluminum contact in presence of moisture corrodes. Mitigations: coatings, anodization, material selection. For severe service, all-aluminum or all-copper designs.

Residential: small scale, high volume, cost-optimized. Mostly handled by mass production at major OEMs. Commercial: larger scale (50-500 ton chillers, 1,000+ CFM air handlers), lower volume, engineered systems. Commercial HVAC is primary market for CNC manufacturing — lower volumes justify CNC vs tooling.

Data center HVAC is a growing specialty — precision cooling, rear-door heat exchangers, liquid cooling integration, hot aisle/cold aisle hardware. CRAC and CRAH unit components. Immersion cooling system hardware (emerging). Supporting data center cooling specialists with specialty manufacturing.

Commercial HVAC equipment: 8-16 weeks typical manufacturing lead time. Specialty and engineered systems: 12-24 weeks. Residential mass-production: not our primary market. Seasonal demand — pre-summer ramp for cooling, pre-winter for heating. Plan accordingly.