Loading ...
Loading ...
Loading ...
3
2
6
5
4
Supply air
Return air
1
3
4
6
5
Supply air
Return air
R
Part Name
1. Return Air Inlet (with filter)
2. Canvas Duct
3. Return Air Duct
4. Indoor Unit
5. Supply Air Duct
6. Return Air Cover Plate(18K only)
18K only
22
DUCTWORK INSTALLATION
Bottom Return Air Installation (18,000 BtuH Only)
The 18,000 BtuH size duct can be converted from a rear to bottom side return. More noise is produced
with the bottom return air location than the rear return air, so it is suggested to provide a duct silencer
to minimize the noise. The default location of the return air connection is at the rear.
If the bottom return air connection is desired, switch the location of the rectangular flange and the
return air cover plate as shown below:
1. Connect return air duct (#3) to the return air inlet of the unit (#4) and the other end to a return
air register. Ensure return ductwork is properly supported with hangers.
2. Connect supply air duct (#5) to the supply air outlet of the unit (#4) and the other end to a
discharge air register. Ensure supply ductwork is properly supported with hangers.
Return Air Cover Plate
Bottom Return Air
Rear Return Air
Rectangular Flange
Attaching Ductwork to Indoor Unit
Loading ...
Loading ...
Loading ...