heat-resistant plastic with a reinforced insert

When diagnosing HVAC pressure switch troubleshooting issues

install the unit in the suction line as close to the compressor as possible

or a direct-fired heater

For technicians servicing Reznor LDAP series units

Aaon P80420 Pulley Els PW 17895 heat-resistant plastic with a reinforcedThe Aaon P80420 Blower Wheel Pulley is a critical drive component engineered for high static pressure applications in HVAC blower motor assemblies. This BK series fixed bore pulley is designed to provide precise belt drive speed ratios for Aaon rooftop units and air handlers, ensuring optimal airflow and system static pressure management. Manufactured from high grade cast iron, the P80420 features a rugged construction that resists fatigue and wear