mcr S-THERM smoke exhaust vents: C, E, NG-A. OPERATION AND MAINTENANCE MANUAL
Page 26 of 41
6.2.
Inlet deflector
The inlet deflector is used to increase the effective aerodynamic efficiency of vent types C and E, i.e.
the smoke exhaust area. The inlet deflector is mounted at the bottom of the vent base. It is made of
galvanized steel sheet, or alternatively aluminium sheet, and can be painted in any RAL colour.
For bulk-shipped inlet deflectors, which are to be installed on site, the mounting brackets (3) are to be
fastened to the sides of the vent base at the pre-drilled points using self-drilling screws 6.3x19 (DIN
7504K). Connect the inlet deflector sides (1) and (2) with the mounting brackets (3) and with each
other in the corners using a set comprising: metric screw M6x12 (DIN 967) + self-locking nut M6 (DIN
985).
The inlet deflector can be pre-mounted in the vent in the transport position.
Then, after installing the vent, the inlet deflector must be fixed in the operating position:
loosen the screws in the mounting brackets on side A of the inlet deflector (in place of the
prepared Ø6.5 mm holes);
unscrew the screws in the mounting brackets on side B of the vent (in place of the prepared
slotted holes);
lower the inlet deflector to the working position - according to the prepared holes;
tighten the fixing bolts (use only nuts with locking).
Fig. 44 Inlet deflector (mounting brackets secured in transport position).
Fig. 45Inlet deflector in transport position (hidden in vent).
Fig. 46 Inlet deflector in operating position.
1
5
2
3
1. Inlet deflector (side A with Ø6.5 mm holes)
2. Inlet deflector (side B with slotted holes)
3. Mounting bracket
4. Slotted holes
5. Ø6.5 mm holes
4
