Aquecoil hhu-am-3 Hydronic Heating Unit 4-5 Ton

Product Description

The AQUECOIL hhu-am-3 is a hydronic heating unit designed to pair with a compatible air handler and a hot water source to deliver residential space heating. It extracts heat energy from hot water and uses the air handler's blower to distribute warm air through the conditioned space. The unit mounts directly over the air handler's discharge or return opening and supports both horizontal and vertical installations. Its heavy-duty aluminum cabinet features a baked enamel finish and full rigid foam insulation for durable, efficient operation. Licensed HVAC technicians typically install this unit as a furnace or heat pump alternative in hydronic heating applications.

The hhu-am-3 is suited for residential space heating systems where a hot water source such as a gas-fired water heater or boiler is already present or planned. It is sized for use with 4 to 5 ton air handlers. The unit accommodates discharge-side or return-side air handler configurations, giving installers flexibility in system layout. Heat output is adjustable to match the load requirements of the conditioned space. Optional circulation pump packages are available in 230-volt or 115-volt configurations to simplify integration with existing air handler wiring and controls.

Key Features

• Mounts directly onto the air handler discharge or return in horizontal or vertical orientation
• Heavy-duty rust-proof aluminum cabinet with baked enamel finish
• Fully insulated with high-R rigid foam to minimize heat loss
• Compatible with any hot water source providing sufficient BTUH output
• Optional 230-volt or 115-volt circulation pump for direct integration with air handler controls
• Optional water-lubricated, low-wattage circulation pump requires no routine maintenance
• Design Certified and Listed to UL and CSA Standards; tested to comply with ANSI/NSF 61-2012

Compatibility

Designed for use with 4 to 5 ton air handlers in residential hydronic heating applications. Compatible with any hot water source that provides sufficient BTUH output, including gas-fired water heaters and boilers.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with hydronic heating systems and local mechanical codes. Shut off the hot water source and de-energize the air handler before mounting or making water connections. Ensure all water connections are properly sealed and that the system is bled of air before startup. Optional ball valve and swing check valve kits should be installed per the manufacturer instructions to protect the coil and maintain flow control.

Technical Specifications

• Application: Residential hydronic space heating
• Compatible Air Handler Size: 4-5 Ton
• Cabinet Material: Rust-proof aluminum with baked enamel finish
• Insulation: High-R rigid foam
• Mounting Orientation: Horizontal or vertical, discharge-side or return-side
• Optional Pump Voltage: 230-volt or 115-volt
• Certifications: UL Listed, CSA Certified, ANSI/NSF 61-2012 Compliant

Standard Information

• Brand: AQUECOIL
• Manufacturer Part Number: hhu-am-3