Liberty LCU-MS Mini-Split Condensate Pump — Quiet, Compact, Dual-Voltage

Liberty Pumps LCU-MS Condensate Pump For Mini-Splits

The Liberty LCU-MS is engineered for compact, reliable condensate handling from wall-mounted, ductless mini-split systems up to 23,500 BTU (7 kW), fan coils, and suspended ceiling A/C systems. Built with quiet operation, solid-state switch technology, and a clear reservoir for visual inspection, it’s ideal for tight mechanical closets or behind equipment. 

Key Features & Benefits

• Quiet operation — minimal noise in indoor settings.
• Solid-state switch technology — more reliable and precise switching than mechanical floats. 
• Clear reservoir — lets you visually inspect water level, float, and filter. 
• Compact 2-piece design — reservoir can be placed inside the air handler while the pump controller can be external. 
• 5/16" (7.9 mm) pump discharge port — standard small condensate tubing. 
• Normally-closed relay (3A resistive, 250V) — supports high-water alarm integration. 
• Voltage range: 100–240V, 0.19A, 30W — works across both 115V and 230V systems.
• Thermal protection (176°F / 80 °C) — helps prevent damage from overheating. 

Specifications

Installation Notes

• The two-piece configuration lets you position the reservoir inside the air handler and the pump controller outside. 
• The pump must be within 6.5 (2 m) of the reservoir.
• Reservoir must be flat and horizontal
• The pump can operate in any orientation but the reservoir has to be level. 

The LCU-MS is a compact, versatile solution for drain and condensate handling in mini-split and similar HVAC systems — offering solid-state reliability, visual diagnostics, and broad voltage compatibility.

Current 0.19 Amps
Frequency 60 Hz
Maximum Head 6.6 ft
Voltage 100-240 Volts

Horsepower 1.34 HP
Flow Rate 2.64 GPH
Power Cord Length 5 ft
Outlet 5/16 inch
Power Output 30 W
Reservoir Capacity 1.2 oz
Temperature Rating 140°F
Maximum Discharge Head 26.2' (8 m)