Lennox VRF VMDB Series Installation Instruction page 9

Relocate Return Air Filter Instructions
1. Remove the return air filter from its existing location
at the rear of the unit.
2. Remove the screws that secure the filter frame to the
rear of the unit and set the frame aside. See Figure
10.
3. Remove the screws that secure the return air cover
plate to the bottom of the unit. Set the cover plate
aside. See Figure 10.
Return Air Cover Plate
Figure 10. Remove Filter, Filter Frame and Return Air
Cover Plate from Existing Location
4. Apply field-supplied foam insulating tape to the return
air opening on the bottom of the unit. See Figure 11.
Field-supplied
foam insulating
tape
Figure 11. Apply Foam Insulating Tape
Return Air Filter Frame
5. Use the existing screws to re-install the return air
filter frame on the bottom of the unit. See Figure 12.
6. Use the existing screws to re-install the return air
cover plate on the rear of the unit. See Figure 14.
Figure 12. Re-install Filter Frame and Return Air Cover
7. Re-install the return air filter in the repositioned filter
frame in the bottom of the unit. Use the provided
clips to secure the filter within the filter frame as
shown in Figure 13.
Figure 13. Re-install Filter using Clips
Figure 14. Relocate Return Air Filter Complete
9
Plate