Supply Air Grilles; Installing Optional; Duct Towers - Dometic Blizzard Turbo Installation And Operation Manual

INSTALLATION INSTRUCTIONS
S A
UPPLY IR
1. If truck has factory-installed engine-driven air conditioning/heat, you may be able to use an adapter or other means to
connect the Dometic air conditioning duct to the existing ductwork. Otherwise, run two or more ducts (depending on
system size—use all that are included in your kit) from the unit to the supply grilles.
2. Cool air falls, so the higher you can mount one of the grilles the better. It is also good to choose an area that's going to
be covering the bunk itself.
3. Once locations are decided, use 4" hole saws to cut holes for supply air grilles.
4. Once holes are cut, attach grilles using sheet metal screws.
5. If, due to space constraints, you are doing this part prior to installing the CHEB, you will attach ducting after CHEB
mounting is complete. (See "Part 1: Installation of the CHEB" on page 6.)
I
NSTALLING
1. Determine the best locations to mount duct towers. Two on the back wall, or one on back wall and one on side wall is
sufficient.
2. If needed, use small hole saws to cut two holes in portion of bunk with mattress removed. Two holes side by side and
possibly a short cut between the holes may be required.
3. Once the locations are decided (and holes cut if needed), use a level to ensure the duct towers are vertical.
4. Drill self-tapping screws into duct towers in both grille locations to mount the towers.
5. Ducting will need to be connected to the bottom of the duct tower. In some cases a transition fitting will be used and in
some cases the ducting may be connected directly to the tube.
6. Do not run the duct until the CHEB installation is complete.
Figure 12: Example - Option 1: Connecting two 4" flex ducts and two towers
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RILLES
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PTIONAL UCT OWERS
Tur
Blizzard bo Split System Manual
L-3448 ENGLISH