Retrotec RSH Pressure Relief Vents - Manual (Page 4)

QG700 Page 4 of 8 rev-2010-08-13
f) After checking to make sure the PRV and the Wall Liner fit, run a bead of intumescent fire-rated
caulk around the face of the wall opening so as to form a seal under the PRV flange and using 3
inch (75mm) long no. 6 steel screws fix the PRV into the hole.
g) Mark and drill the wall liner flange as per PRV flange. Apply a bead of intumescent fire-rated
caulk around the opening face where the wall liner flange is to fit or around the wall liner flange
and fix in with 3 inch (75mm) no. 6 steel screws.