This furnace relay is critical for maintaining system compatibility and ensuring that heating stages cycle according to the demand of the low-voltage thermostat signal

For proportional or 0-10Vdc signals

the Modine 5H0798690000 is strictly engineered for propane (LP) gas

Designed for heavy-duty industrial service

Nordyne 621918 Motor Refrigerant This furnace relay is criticalThe Nordyne 621918 motor is a critical replacement for 1 5 HP residential and light commercial HVAC units, engineered specifically for high demand condenser fan applications. Operating at 208 230V and a nominal 1075 RPM, this single phase, 42 frame PSC (Permanent Split Capacitor) motor ensures consistent airflow across the condenser coils to maintain optimal head pressure. As the authentic OEM replacement for 621918R and Y6S620C53, it features a 1. 18