Aprilaire 550 By-Pass Humidifier - Details and Installation

  • The Model 550 Aprilaire can be installed on either the supply or return plenum of the forced air handling system.
  • The Model 550 can be easily reversed for right hand or left hand installation.
  • The unit is 13-1/4" x 12-3/4"x9-1/4". The dimensions and serviceablity should be considered when selecting the installation location.
  • If the furnace has central cooling, the humidifier bypass duct must have a damper and the damper should be closed during the cooling season.
  • A floor drain or condensate pump will be required.

 

 

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