2.1.7 Serviceability
Install the appliance so that the front access panel is readily accessible for servicing. The front panel
must be removed for access to the filter for replacement and access to the control board for wiring
and setup. For more information on maintenance, see Service and maintenance on page 73. For
wiring diagrams, see Electrical connections on page 31.
2.2 Positioning and mounting the appliance
This section provides guidance on ways to orient and install the appliance. Ensure that:
You install the air handling appliance level and plumb.
If the appliance is sitting on the floor, shim as needed to level the appliance.
If the appliance is suspended, it is secured to the mounting system.
The appliance offers four mounting options for supply air discharge: up, down, left, or right. For
diagrams on the possible orientations including dimensions, see Cabinet and air supply dimensions
on page 10.
2.2.1 Return air openings for ducting
The appliance provides three options for return air opening: left or right side return air and bottom
return air.
Figure 21 Left return air opening Figure 22 Right return air opening