Little Giant EC-400 Series Mini Split Condensate Removal Pumps

The EC-400 automatically removes condensate from wall mount ductless mini-split air conditioners when gravity drainage is not possible. The compact design allows components to be placed in most air handlers or the pump can be placed up to 3' above or adjacent to the air handler in the ceiling void or inside the line-set channel. A three position switch (on, off and overflow detection) is activated by a float located in the collection reservoir.


  • For intermittent operation, maximum 50% duty cycle
  • Condensate produced in application must be no more than half the pump's flow rate for any given head
  • Use with most mini-split air conditioning units up to 25,000 BTU/hr
  • Self-priming pump can be placed up to 3' above reservoir
  • Includes safety switch, suction tubing, vent tubing and drain tubing, and tubing adapter
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Little Giant EC-400 Specifications

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#1 Q:   Can this pump be installed in an attic just above the indoor airhandler?
A:   The pump portion can be placed up to 3 ft above the reservoir portion. 2 part pump system.

       Asked on 2021-07-30 by Bryan
#2 Q:   Can the ec 400 pump be mounted vertically ?
A:   Per the manual: Be certain that the bottom of the reservoir is within (+/-) 15 degrees of being level with the optimum performance being when the reservoir is level.

       Asked on 2020-05-25 by NHC

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