Description
Nordyne 664077R .077 Restrictor Orifice #77 Overview
The Nordyne 664077R is an OEM replacement restrictor orifice designed for use in Nordyne furnace systems. Featuring a #77 drill size with a 0.077-inch bore diameter, this precision-machined orifice meters gas flow to the burner assembly, ensuring safe, efficient, and consistent combustion performance.
Key Features
- OEM Nordyne replacement part — SKU 664077R
- #77 drill size orifice with 0.077″ bore diameter for precise gas metering
- Designed to restrict and regulate gas flow to burner assemblies
- Engineered for accurate fit and reliable performance in compatible Nordyne furnace models
- Helps maintain proper air-to-fuel ratio for safe, efficient combustion
- Durable construction for long-lasting service life
Application
This restrictor orifice is a critical component in Nordyne gas furnace burner systems. It controls the volume of gas delivered to the burner, directly impacting combustion efficiency, heat output, and system safety. Always verify compatibility with your specific Nordyne furnace model before installation.
Installation Notes
- Intended for use by qualified HVAC technicians
- Confirm model compatibility using your furnace’s service manual or parts list
- Ensure gas supply is shut off before replacing any orifice components
- Follow all applicable local codes and manufacturer guidelines during installation
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