Carrier 30GX505673 Oil Pump Motor

Integrating a genuine Carrier 30GX505673 Oil Pump Motor into your circuit is the professional standard for maintaining critical lubrication levels in 30GX and 30HXC screw chillers. This 115V, 50/60 Hz single-phase motor is a factory authorized part engineered specifically for pre-lubrication sequences, ensuring the compressor rotors are properly coated before the main drive engages. By delivering a consistent 120W of power, this motor drives the external gear pump to build the required differential oil pressure, preventing dry starts and protecting high-tolerance internal components from premature wear.

Built for the rigors of continuous industrial refrigeration, the 30GX505673 features a compact frame designed for easy bracket mounting on the oil separator side. This OEM component ensures system compatibility with Carrier’s proprietary control logic, specifically the 20-second pre-lube timing requirement. When troubleshooting low oil pressure alarms, replacing a failing motor with this genuine replacement part eliminates torque inconsistencies and ensures the oil pressure transducer receives a steady signal for a successful startup every time.

• Exact OEM Specifications: Matches the 115V, 1-Phase, 120W requirements for Carrier 30GXN and 30HXC series chillers.
• Optimal Lubrication Flow: Ensures the oil separator and compressor receive sufficient flow to satisfy safety interlocks.
• Durable Construction: Engineered to withstand the high-vibration environment of commercial HVAC plant rooms.
• Simplified Installation: Standard 115V lead wiring and compact dimensions (approx. 2.2" L x 3.6" W) allow for fast field retrofits.

Is this motor compatible with 30HXC water-cooled units?
Yes, the Carrier 30GX505673 is the standard pre-lube motor for both 30GX air-cooled and 30HXC water-cooled screw chillers using R-134a and POE oil.

What causes this motor to fail prematurely?
Technicians often find that contaminated oil or a failing oil solenoid valve creates excessive backpressure, leading to motor winding burnout or startup failure.

Can I use a generic 115V motor as a substitute?
Using non-OEM motors can lead to timing issues in the startup sequence. This factory-authorized part is verified to meet the specific torque and RPM profiles required by the chiller’s control module.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.