The Grundfos Conlift1 LS is a compact condensate removal pump designed to safely and reliably remove condensate (water produced during boiler operation) from boilers, high-efficiency furnaces, air conditioners, and other HVAC equipment. It is engineered to handle the acidic condensate typical of modern condensing appliances.

Function & Purpose

As condensing boilers and HVAC units operate, they produce a by-product of water (condensate). In many installations, this condensate cannot drain by gravity into a suitable drain point without a lift. The Conlift1 LS automatically collects and pumps this condensate away to a drain, soil stack, gully, or soakaway at a higher level. It activates when the condensate reservoir reaches a certain level, then pumps the liquid away, preventing overflow and potential water damage.

Compatibility

The Conlift1 LS is compatible with most domestic and light commercial condensing boilers and HVAC systems that produce condensate. It works with natural gas, LPG, or oil-fired condensing appliances as long as a condensate outlet is present and needs lifting to reach a drain. The pump is designed to handle the mildly acidic nature of condensate safely.

Ideal Applications

The Conlift1 LS is ideal for installations where condensate cannot drain by gravity due to location constraints, such as in basements, below drain level, or other areas where the appliance’s condensate outlet is too low relative to the available drain. It suits residential and light commercial settings and supports safe, compliant condensate disposal away from the appliance.