VESDA
®
LaserSCANNER Installation Manual
Version 1.3
11
6.5 Removal of Metal Knockout Holes for Cable Entry
(a) Determine the cable entry holes to be used. Refer to Figure 7.
(b) Using the ball end of a small hammer, gently tap onto the required knockout holes to break
away the metal pieces.
OR
Punch out the knockout holes with the blade of a screwdriver or a punch tool.
6.6 Exhaust Port Options
There are three exhaust air outlet positions (Bottom, Rear and Left Side) located on the exhaust
air manifold. Refer to Figure 7. Any of these outlets may be used to vent the air into the
atmosphere or back to the fire zone. Select an appropriate exhaust outlet to suit the site
condition and remove the appropriate plug with a screwdriver.
If the side exhaust is to be used perform the following:-
(a) Punch out the knockout hole located on the left side of the enclosure with the ball end of a
small hammer or a screwdriver (A).
(b) To remove the plug (B), insert a screwdriver into the slot on the plug and turn.
(c) Run a 25mm (1in) pipe through the side hole and insert the pipe into the exhaust port
ensuring there is a firm fit.
(d)
Do not glue this pipe to the exhaust port
.
Caution: Do not remove the plug located at outlet (B) if there is no pipe attached to this
outlet.
Figure 7 Exhaust Port Options and location of Cable Entry Ports
Cable Entry Ports
(Two on Rear)
Cable Entry Ports
(May be used for
Exhaust Air Pipe)
Side Exhaust
Air Outlet (B)
(Plug not shown
)
(A)
Bottom Exhaust
Air Outlet
(One Outlet on Rear)
Air Inlet Port 1
Air Inlet Port 4
Air Inlet Port 2 Air Inlet Port 3
