General Electric nf97u135m5d Gas Furnace 135K Btu 97% Afue

Product Description

The GENERAL ELECTRIC nf97u135m5d is a modulating upflow and horizontal flow gas furnace rated at 135,000 BTU/h with a 97% AFUE efficiency rating. It operates with a variable speed ECM motor and modulating heat output, allowing the unit to adjust firing rate and airflow continuously to match load demand. This results in tighter temperature control and quieter operation compared to single- or two-stage units. The heat exchanger uses crimped construction rather than welded joints. Licensed HVAC technicians install this furnace in residential and light commercial forced-air systems.

The nf97u135m5d supports upflow and horizontal airflow configurations, making it suitable for installations in utility closets, basements, attics, or crawlspace applications where horizontal orientation is required. At 5 tons and 135,000 BTU/h, this furnace is sized for larger residential homes or small commercial spaces with high heating demand. The gray cabinet finish and pre-formed flanges support straightforward field assembly and positioning. The variable speed motor reduces operating noise and provides consistent airflow across a wide range of static pressure conditions.

Key Features

• 97% AFUE modulating operation for continuous capacity adjustment and improved comfort
• Variable speed ECM motor for quiet, efficient airflow control
• Upflow and horizontal airflow configuration for flexible installation positioning
• Crimped heat exchanger construction rather than welded joints
• Pre-formed flanges for simplified field assembly
• Lifetime heat exchanger limited warranty available with product registration

Compatibility

Designed as an OEM-style replacement or new-installation gas furnace for residential and light commercial forced-air heating systems requiring a 5-ton, 135,000 BTU/h modulating upflow or horizontal configuration.

Installation Notes

Installation must be performed by a licensed HVAC technician in accordance with local mechanical codes and the International Fuel Gas Code (IFGC). Disconnect electrical power and shut off the gas supply at the service valve before making any connections or performing any work on the unit. Verify that the venting system, gas line sizing, and electrical supply match the unit requirements before startup. Do not alter the heat exchanger, burner assembly, or factory wiring.