
Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3633IF, NNXT3633ILF Installation Manual • 4055-980 Rev. D • 9/15
26
6
6
Appliance Preparation
CAUTION! Risk of Cuts, Abrasions or Flying Debris.
Wear protective gloves and safety glasses during installa-
tion. Sheet metal edges are sharp.
NOTICE:
Once appliance is set up for top or rear venting,
it CANNOT be changed at a later time.
A. Top Vent
Figure 6.1
Figure 6.2
Figure 6.3
Figure 6.4
Figure 6.5
• Discard the vent cap, remove and discard the insulation
basket from the inner vent pipe. Note: Once the vent
cap has been removed it cannot be reattached. Remove
insulation from out vent pipe.
• Fold the center parts of the retaining band up and use
to remove the vent cap.
• Remove the cover plate by removing the two screws
holding it to the top of the appliance. Remove and discard
the cover plate.
• Remove the center insulation plug.
• Cut the metal retaining band and fold the sides out.
• Snap
the
fi
rst vent section into place.
Proceed to Section 6.C.
Figure 6.6