Little Giant 554435 Pump

As a veteran tech, you know that managing condensate in high-efficiency systems requires a reliable, automatic solution. The Little Giant 554435, also known as the VCMA-20ULST, is a 115V powerhouse built specifically for condensate removal in air conditioning, refrigeration, and high-efficiency gas furnaces. Driven by a 1/30 HP motor, this unit delivers a 80 GPH flow rate at a 1-foot head and maintains performance up to a 20-foot shut-off head. The 1/2-gallon tank is constructed from high-impact, rustproof ABS, while the stainless steel motor shaft prevents corrosion over extended duty cycles. This model includes a built-in overflow safety switch, allowing you to wire an alarm or shut down the condenser to prevent property damage. With its 3/8 inch barbed discharge, three inlet drain holes, and 20 feet of clear tubing, this unit is ready for immediate HVAC installation and serves as a direct condensate pump replacement for legacy VCMA models.

• High-performance 115V motor provides a maximum 20-foot lift, making it ideal for basement installations or long vertical runs.
• Acidic condensate compatibility ensures the ABS tank and glass-filled polypropylene impeller withstand discharge from condensing boilers and furnaces.
• Integrated safety switch features lead wires for easy connection to the thermostat (Y) circuit or a local alarm system.
• Field-serviceable design includes a removable 3/8" O.D. barbed check valve and a thermally protected motor for simplified maintenance.
• Multiple inlet options with three drain holes allow for versatile piping configurations in tight mechanical rooms.

What size tubing does the 554435 use?
This model comes standard with a 3/8" O.D. barbed discharge adapter and includes 20 feet of 3/8" I.D. vinyl tubing.

Can this pump handle hot water from a boiler?
The 554435 is rated for intermittent liquid temperatures up to 140°F (60°C), making it suitable for modern high-efficiency condensing equipment.

Does this unit have a check valve?
Yes, it features a built-in, removable 3/8" barbed check valve to prevent backflow into the reservoir once the pump cycles off.

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.