What is the difference between SPDT and SPST in this application

By utilizing a flexible split-tire design

Does it work for both vacuum and pressure

preventing premature compressor wear and optimizing the efficiency of the entire cooling cycle

Technicians should verify that these seals are compatible with both POE oil and R-134a or R-1234ze refrigerants before installation

Greenheck 461548 Blower Assembly 323055-751 What is the difference betweenThe Greenheck 461548 Blower Assembly is a direct replacement component engineered specifically for DGX 109 direct fired gas heaters. Designed to maintain precise static pressure and consistent airflow delivery, this heavy duty blower module ensures your makeup air unit operates within specified CFM requirements. As an OEM Greenheck replacement part, it facilitates seamless mechanical integration, allowing technicians to restore ventilation system