Condensate Removal

Detail ID 5.0102.1
Topic
Forced Air
Subtopic
Condensate
Desired Outcome

Remove appliance condensation from building and prevent damage to structure

SF Single Family Site-Built Housing
MH Manufactured Housing
MF Multifamily Housing

Specifications

  • SF
  • MH
  • MF
Specification Objective

Convey all condensate from all cooling coils, condensing furnaces, etc. to the exterior of the building

Condensate from condensing furnaces must first pass through a neutralizer if using waste lines for disposal

Condensate safely drained to exterior

  • SF
  • MH
  • MF
Specification Objective

Seal all piping that conveys condensate

Leak free condensate piping

  • SF
  • MH
  • MF
Specification Objective

Install condensate piping with not less than 1/8" per foot (1% slope) towards the termination point

Condensate drains toward termination

  • SF
  • MH
  • MF
Specification Objective

Install vents and traps on condensate drain lines in accordance with manufacturer specifications and applicable building code and in a manner that allows for cleaning of condensate lines without cutting the existing pipe

Condensate drain operates as intended

  • SF
  • MH
  • MF
Specification Objective

Install a secondary drain pan under all condensing appliances installed in or above conditioned space and where water damage may occur to the structure

Install an independent condensate drain for the secondary drain pan that drains to a visible termination location

Slope drain pan towards the condensate drain

Prevent water damage to dwelling

  • SF
  • MH
  • MF
Specification Objective

Install a float switch in the primary and secondary drain pan that is interlocked with the system power circuit and will break the circuit when drainage fails to remove condensate

Stop system operation if condensate is not draining

  • SF
  • MH
  • MF
Specification Objective

When there is potential for condensation or freezing of the drain line, insulate condensate drain lines to a minimum of R-4 with insulation that contains a Class II or greater vapor retarder

Prevent freezing and condensation on pipes

  • SF
  • MH
  • MF
Specification Objective

Install condensate drain pumps when condensate cannot be drained by gravity

Convey condensate to exterior without gravity assistance

  • SF
  • MH
  • MF
Specification Objective

If termination of condensate drain is to the outdoors, direct it downwards with an elbow fitting at the end of the exterior termination

Condensate drains to exterior and away from building

View Sub-Topic:
Condensate