Nordyne 664477R Coupling 321702-401 this blower assembly is used

this blower assembly is used across various fuel types as it manages air intake prior to the gas valve's negative pressure regulation

this junction box facilitates clean wire management and eases routine maintenance

the HH11AZ070 serves as a direct replacement for many legacy HH11 series controls

4 FLA at 120V

allowing for accurate HVAC fire safety monitoring

Nordyne 664477R Coupling 321702-401 this blower assembly is usedThe Nordyne 664477R Bulkhead Coupling is a mission critical OEM component designed for high pressure R410A refrigerant applications. Engineered for 3 8" linesets, this brass refrigerant coupling provides a secure, leak proof transition through equipment cabinets, ensuring structural integrity while maintaining a gas tight seal. As a genuine Nordyne replacement part, it is the standard specification for specialized HVAC systems involving brands like