Dometic FreshJet 4 Series Installation Manual page 17

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Roof thickness
25 ... 35 mm
35 ... 45 mm
45 ... 55 mm
55 ... 60 mm
NOTE Additional duct sections can be purchased for thicker roofs.
26. Attach the required number of duct sections on the ADB.
27. Fasten the ADB to the ceiling through the roof top unit with the 4 bolts supplied. Tighten the screws using a
torque spanner and a fastening torque of 2.5 Nm ± 0.3 Nm.
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2.5 ± 0.3 Nm
28. Push the filter back fully in.
Number of duct sections
1
2
3
4
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