Trane FAN0428 Fan Blade 321894-709 The MARS 19550 Relay is

The MARS 19550 Relay is a heavy-duty submersible pump potential relay specifically designed for high-moisture environments

using the Bard HVAC 8552-005BX capacitor means avoiding the high-frequency vibration and internal heat buildup associated with generic "one-size-fits-all" replacements

Hermetic Construction: All-copper and steel construction eliminates gasket points of failure

The Apollo 10-600 series construction features a bronze body and stainless steel spring to resist corrosion and prevent seat sticking

It is recommended to check for 5-amp inline fuses or shorts before energized testing

Trane FAN0428 Fan Blade 321894-709 The MARS 19550 Relay isThe Trane FAN0428 is a heavy duty condenser fan blade engineered specifically for high efficiency heat transfer in Trane HVAC systems. As a veteran technician knows, maintaining the correct static pressure and airflow across the condenser coils is critical to preventing compressor overheating. This 13. 5 inch 3 blade fan is manufactured with a 1 2 inch bore, ensuring a precision fit on standard motor shafts to eliminate the vibration and bearing wear