Page 21 of 35
space. Where return air duct is short, or where sound is likely to be a problem, sound
absorbing glass fiber should be used inside the duct. Insulation of duct work is a must
where it runs through an uncooled space during the cooling season. The use of a vapor
barrier is recommended to prevent absorption of moisture from the surrounding air into
the insulation. The supply air duct should be properly sized by use of a transition to
match unit opening. All ducts should be suspended using flexible hangers and never
fastened directly to the structure. This unit is not designed for nonducted (freeblow)
applications. Duct work should be fabricated and installed in accordance with local
and/or national codes.
The units can be installed in a vertical (down and up) and horizontal (right and left)
configuration.
NOTE: Vertical up and horizontal right installation, no need to change the
direction of the evaporator.
Please follow these steps to perform Vertical up installation and Horizontal right
installation:
1. Open the upper cover
2. Open the cover of the electronic control box
3. Connect the wire according to the wiring diagram
4. Connect the pipes
5. Install the drainage pipes
Vertical Up Flow Installations
Vertical Down Flow Installations
Horizontal Right Installations
Horizontal Left Installations
NOTE: For horizontal installation, a drain
pan (not supplied) must be installed
NOTE: For horizontal installation, a drain
pan (not supplied) must be installed
Mount Positions
