Pre-Installation
Pre-Installation
Considerations
Before beginning installation, make the following considerations:
1.Verify the wall opening is in the correct location and the correct size.
2.Drill mounting holes on both sides of the wall sleeve, if equipment requires any of the following options: subbase, leveling legs, or hydronic heat kit.
If dimension A in Figure 2 is at or near the minimum specified in Table 2, p. 7, accessory options should be mounted to the sleeve prior to installing the sleeve in the wall. Otherwise, there may not be enough access room for the tools used to mount the accessories to the wall sleeve.
3.If additional wall sleeve support is required, the leveling leg accessory kit or a subbase kit that includes leveling legs can be used to provide extra support.
4.If installing in a concrete or masonry wall, you must provide a lintel in the wall opening for support. Do not use the wall sleeve as a lintel.
See Figure 1 for a typical lintel construction.
Figure 1. Typical Installation framing with lintel
5.When installing in walls that are deeper than 13 1/2 inches, use an extended wall sleeve. A sleeve without the proper depth will require special care to prevent problems with rain water, condensate drainage, and intake/ discharge air.
Under these circumstances, careful jobsite analysis and cautions are required. Consult your local HVAC representative before attempting such installations.
Checklist
The following checklist provides an overview of the factory- recommended
•If unit arrives shipped on its side, do not accept.
•Verify the unit size and tagging with the unit nameplate to ensure the correct unit is received.
•Inspect the unit for possible shipping damage and make any necessary claims with the freight delivery company immediately.
•Verify the installation location is free of airflow obstructions, such as curtains, furniture, trees, or other objects that may block airflow to and from the unit.
WARNING
Fire Hazard!
Do not use extension cords. Using extension cords could cause a fire.
•Make provisions for correct supply power and that the electrical receptacle is within 52 inches of the lower right corner of the equipment.
•Ensure the unit wall opening is level.
•Ensure adequate sealing and insulation is around the wall sleeve.
Figure 2. Minimum unit clearance
Table 1. Minimum interior and exterior projections
42 1/2” min.
16 1/4” min.
Finished Floor
Dimension B
Figure 3. Minimum wall opening dimensions
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