It requires a stable 24-volt power source from a class 2 transformer

Supporting a 40 amp current rating and 1

Enhanced Combustion Safety: Provides the necessary CFM to ensure complete venting of flue gases through the primary and secondary heat exchangers

The blower often defaults to "on" when a limit switch trips as a safety measure to cool the heat exchanger

reducing control panel clutter and simplifying wire management

Lennox 89W77 Blower Motor R-134A It requires a stable 24-voltThe Lennox 89W77 Blower Motor (part number 104849 05) is a high duty, direct drive motor specifically engineered for critical application in industrial and commercial HVAC systems. Operating at 240V with a 1 3 HP rating, this 825 RPM motor provides the precise torque and static pressure performance required for consistent airflow in air handlers and light duty packaged units. Built as a Permanently Split Capacitor (PSC) motor, it features a 1. 9 Amp