opening the 1/8" orifice to discharge gas before automatically resealing when the liquid returns

High-Efficiency ECM Technology: Reduces energy consumption and operational costs compared to PSC motors

allowing the system to resume normal operation safely after cooling

Durability: Constructed with materials rated for continuous exposure to extreme heat and rapid thermal expansion

When performing a head mechanism replacement or annual inspection

Liebert B-005AS Sheave 30067439-890 opening the 1/8" orifice toThe Liebert B 005AS Sheave is a high precision, single groove cast iron sheave engineered for critical environment HVACR systems. Built with a 7 8" finished bore and a 4. 75" outside diameter, this component is designed to maintain exact blower speeds in Liebert precision cooling units. As an OEM replacement part, it ensures proper belt alignment and consistent torque transmission, which are vital for preventing premature bearing failure and