Description
The First Company 9-320-3521 is a factory-engineered hot water (HW) heating coil designed as a direct-fit replacement for First Company 30 and 36 VAQ series air handler units. Built to First Company’s exacting standards, this coil integrates seamlessly into the VAQ cabinet to deliver consistent, efficient hydronic heating performance in residential and light commercial applications.
Key Features
- OEM hot water heating coil engineered specifically for First Company 30/36 VAQ air handlers
- Direct-fit replacement design ensures straightforward installation with no field modifications
- Constructed for reliable hydronic heating performance in forced-air systems
- Durable materials designed to withstand the demands of continuous HVAC operation
- Maintains original equipment efficiency and airflow characteristics
Compatibility
- Compatible with First Company 30 VAQ series air handler units
- Compatible with First Company 36 VAQ series air handler units
Application
This hot water coil is ideal for HVAC technicians and contractors performing coil replacements or system upgrades on First Company VAQ air handlers. Using a genuine OEM coil ensures proper fit, optimal heat transfer, and long-term system reliability. Always consult the equipment installation manual and verify compatibility with your specific unit model before installation.







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