Little Giant VCMA-15ULST condensate pump 115V 65 GPH — 1/2 gal tank, overflow switch, 20 ft tubing

The Little Giant VCMA-15ULST is a compact automatic condensate removal pump that collects and evacuates condensate from HVAC, refrigeration, and dehumidifier systems with a 1/2-gallon tank, 65 GPH capacity, and built-in overflow detection.

Compact yet powerful, this 115-volt condensate pump is built for routine drainage tasks where gravity or plumbing connections are impractical. The unit pairs a 1/50 horsepower motor with thermal overload protection, a corrosion-resistant ABS housing, and a stainless-steel shaft for reliable performance. It ships with 20 feet of 3/8" I.D. vinyl tubing and an overflow detection switch that can either stop connected equipment or trigger an alarm (alarm not included).

How does the VCMA-15ULST handle typical HVAC condensate loads?

The pump is rated for 65 gallons per hour and provides automatic on/off switching to keep a half-gallon reservoir from overflowing. It’s suitable for air conditioners, dehumidifiers, condensing boilers, and high-efficiency furnaces where condensate accumulates.

• Pumping rate: 65 GPH at 1' lift; 15' shut-off height
• Tank capacity: 1/2 gallon for short-term collection
• Max water temperature: 140° F (60° C)

What safety and durability features come with this model?

The VCMA-15ULST uses a thermally protected, fan-cooled motor and a stainless steel shaft to resist wear. The housing and internal volute are molded from ABS for chemical and impact resistance, and the unit is CSA certified for U.S. and Canadian standards.

• Thermal overload protection to prevent motor damage
• ABS tank, motor cover, and volute resist corrosion and dents
• Overflow detection switch for automatic shutdown or alarm activation

How easy is installation and what should I check before use?

Installation is straightforward for anyone comfortable with basic wiring and plumbing for condensate lines. The pump includes a six-foot cord with plug and twenty feet of tubing, but be sure to remove the cardboard shipping insert marked "REMOVE" before operation to avoid overflow problems.

• Included 20' x 3/8" I.D. vinyl tubing for immediate hookup
• 6' power cord with plug; basic wiring needed for overflow switch functions
• Inspect tubing for kinks or debris and remove the shipping insert before first use

What performance limits and connections should I plan for?

Plan installations within the pump’s lift and pressure limits to maintain consistent drainage. The discharge uses a 3/8" barbed outlet and the unit handles up to about 6.5 PSI; it shuts off automatically at the rated height to protect the motor.

• Discharge: 3/8" OD barbed connection for supplied tubing
• Maximum shut-off height: 15 feet; maximum pressure ~6.5 PSI
• Electrical: 115 V, 1.0 A, 60 W, fan-cooled motor

Who is this for: The Little Giant VCMA-15ULST is aimed at homeowners, HVAC technicians, and building managers who need a dependable, low-profile condensate removal solution. It’s a good fit where a compact pump must handle routine condensate loads, provide overflow protection, and operate with minimal maintenance—especially in systems without convenient gravity drainage.