Supply Air Configurations; Typical Supply Air Configuration - Lennox VRF V22A Series Installation Instruction

Supply Air Configurations

Supply air is typically provided from all four sides of the
cassette unit. See Figure 18.
If needed for the application, one or two sides of the
cassette supply air can be blanked off to prevent air flow
from that side. See Figures 19 and 20 for possible air flow
configurations.
Use field-provided blocking and sealing materials.
NOTE - A maximum of two sides can be blanked off.
Typical cassette body shown, actual unit may vary in
size and location of supply air openings.
Figure 18. Typical Supply Air Configuration
1. Remove the decorative cover panel if installed.
2. Identify and measure the supply air opening that will
be blanked off. See figure 18.
3. Prepare the blocking material. Cut a piece of styrofoam
or other non-conductive material to fit the supply air
opening.
4. Insert the blocking material into the supply air opening.
5. Prepare the sealing material. Cut a piece of foil tape
or other non-conductive sealing material to cover and
secure the blocking material.
6. Seal the supply air opening using the sealing material.
7. Install the decorative cover panel.
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