Little Giant CP1-230 Evaporative Cooler Pump

For service professionals maintaining high-volume cooling units, the Little Giant CP1-230 is a reliable 230V evaporative cooler pump engineered for continuous recirculating duty. This 1/70 HP replacement pump is designed to handle systems up to 7,500 CFM, featuring a heavy-duty, fan-cooled motor with thermal overload protection to prevent stator burnout during peak summer loads. The 540015 model is built with moisture-proof windings and a one-piece corrosion-resistant steel shaft, ensuring mechanical integrity in high-humidity environments. Its universal mounting configuration and 90-degree barbed elbow—compatible with 1/2", 5/8", and 3/4" I.D. flex tubing—allow for fast, adaptable installs on a variety of residential and commercial swamp cooler brands. With a shut-off head of 9.5 feet and a performance rating of 307 GPH @ 1' head, this pump delivers the consistent vertical lift required for deep-sump applications and large-scale media saturation. The snap-off volute plate and integrated mesh screen facilitate rapid debris removal, keeping the cooling system running efficiently without frequent callbacks.

• High-Capacity Recirculation: Optimized for 7,500 CFM evaporative coolers with a maximum flow rate of 307 GPH for thorough media wetting.
• Industrial-Grade Motor: Features a concentric fan-cooled motor and oversized sleeve bearings with a large oil reservoir to handle 230V demand.
• Simplified Maintenance: Equipped with a snap-off volute and a removable mesh debris screen for tool-free cleaning of the polyester impeller.
• Universal Compatibility: Includes a multi-size discharge adapter and a sturdy metal support bracket for versatile installation across OEM chassis.
• Enhanced Durability: Constructed with flame-retardant thermal plastic housing and a corrosion-resistant steel motor shaft.

Common Questions for HVAC Contractors

Can I use this 230V pump to replace a 115V model?
No. The CP1-230 is specifically designed for 230V/240V 50/60Hz circuits. Connecting this motor to 115V will cause it to run at half speed or fail to start, while applying 230V to a 115V pump will result in immediate motor failure. Always verify the voltage at the cooler's junction box before installation.

Which tubing size is required for the discharge connection?
The included 90-degree barbed elbow is a universal fit for 1/2", 5/8", and 3/4" internal diameter (I.D.) flexible tubing. For 7,500 CFM units, using 5/8" or 3/4" tubing is recommended to maintain optimal flow rates and reduce friction loss.

Is this pump suitable for saltwater or harsh chemical applications?
This pump is engineered for fresh water recirculating systems found in cooling towers and evaporative coolers. While it features a corrosion-resistant shaft, it is not intended for pumping flammable fluids, aggressive chemicals, or high-salinity water.

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.