Rinnai Hydronic Air Handler 50 MBH w/ Circulator Pump – 50K Btu, 1200 CFM

Experience ultimate comfort and efficiency with the Rinnai Hydronic Air Handler, designed to work seamlessly with Rinnai Tankless Water Heaters and I-Series Condensing Gas Boilers. Perfect for both new construction and retrofit projects, this hydronic air handler provides consistent home heating while supplying continuous domestic hot water. Its versatile configurations, built-in circulator pump, and advanced thermostat controls ensure maximum performance and convenience.

Whether installed vertically or horizontally, the corrosion-resistant steel cabinet with foil insulation suppresses noise, while freeze protection safeguards your system in colder climates. Upgrade your home’s heating system with Rinnai’s reliable and energy-efficient solution.

Key Features:

• Works with Rinnai Tankless Water Heaters or Condensing Gas Boilers for simultaneous space heating & DHW
• Built-in circulator pump for integrated hot water and home heating
• Vertical (upflow) or horizontal installation options with multiple return configurations
• Heavy-gauge, corrosion-resistant steel cabinet with 5/8" foil insulation for noise suppression
• Freeze protection activated at 40°F (4°C)
• Thermostat-controlled operation for consistent comfort
• 24VAC isolation valve manages solenoid during recirculation of domestic hot water
• Auxiliary contact for boiler activation
• Domestic priority switch ensures endless hot water during high demand
• 60-second blower time delay for smoother heating/cooling transitions
• Pump timer circulates water for 1 minute every 6 hours for system efficiency
  

What’s Included

• Rinnai Hydronic Air Handler, 50 MBH
• Integrated Circulator Pump
• Installation and Operation Manual
• Factory-installed Freeze Protection System
  

Specifications:

Care & Maintenance Instructions

• Regularly inspect for dust or debris in air intake and vents
• Ensure the system operates in environments above freezing unless freeze protection is active
• Periodically check the circulator pump and boiler connections
• Follow manufacturer’s maintenance guidelines in the installation manual
• Avoid using harsh chemicals for cleaning the cabinet; wipe with a damp cloth