The Carrier LA660002 Fan Blade is a secondary cooling component engineered for high-durability performance in specific Carrier

and plastic tubing

Field technicians must ensure manifold pressures are adjusted to manufacturer specifications when swapping these orifices to maintain proper combustion profiles

Common Questions: What causes a 170F limit switch to trip frequently

Precise 150F Cut-Out: Calibrated specifically for high-limit protection to prevent heat exchanger damage or unsafe operating conditions

Nordyne 155315R Inducer Orifice The Carrier LA660002 Fan BladeThe Nordyne 155315R Inducer Orifice is a critical combustion component specifically engineered for 80,000 BTU gas furnaces. This OEM replacement part is essential for maintaining the correct exhaust gas velocity and ensuring the induced draft motor operates within the designed static pressure parameters. When troubleshooting pressure switch lockout or incomplete combustion issues, technicians must verify the integrity of the combustion blower orifice.