Rittal Blue e+ 3312.820 Assembly Instructions Manual page 24

5 Installing the air duct
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Fig. 15: Attach the rear air duct

Extend the end piece of the horizontal air duct part until the press-fit bolts are
engaged with the slots and the contact surfaces are touching one other
(fig. 16).
Fig. 16: Extend the horizontal air duct part

Secure the air duct using two Polystop nuts (Polystop nut M5), each with one
contact washer (contact washer NZ/5,1 serrated) (fig. 17).
The tightening torque for the nuts is 5 Nm.
Fig. 17: Attach the air duct to the rear angle bracket

Glue the gasket (W21 x H3 mm) onto the contact surface between the vertical
and horizontal air duct parts (fig. 18).
Rittal air duct Blue e+