INSTALLATION MANUAL
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4.3 Fresh air supply (optional)
A. Using a knife cut an opening in the plastic air inlet (see Fig. 10).
B. Using a knife cut open the insulation in the fresh air opening connection (see Fig. 11).
C. Install special adapter and tighten it with four screws. Fresh air adapter can be
purchased through Company service centers.
D. Connect fresh air duct with a 4-inch diameter.
Fig. 10. Opening plastic air inlet for fresh air
Fig. 11. Installing fresh air adapter
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