Duct for air renewal in split-type evaporator units

  This unit allows the addition of a tubing intended for "air renewal" environment, and for this only need to highlight the pre-trimmed side cover, according to the manufacturer's manual. A flange of circular section is provided with the internal unit to allow adaptation of the air-renewal duct. The external air intake must provide for the installation of an air filter to prevent damage to the evaporator finning. The air insulation pressure can be selected during installation of the equipment.