www.DaikinApplied.com
7
IM 830-6
VentiMatic
™
Shutter Assembly
In many installations, a Daikin
VentiMatic Shutter Assembly is
. This one-way shutter is a continuously
variable, gravity actuated, room exhaust vent that operates
in direct response to positive static pressure. It opposes any
airflow into the room and allows a slight positive pressure.
It is important that the VentiMatic shutter and unit ventilator
louvers are mounted on the same wall. This neutralizes the
effect of the wind. Forcing excess air into the room through
the unit ventilator louver overcomes the same wind pressure
that works to keep the VentiMatic shutter closed. This prevents
room air exhausting from the room through the VentiMatic
shutter.
Figure 6: VentiMatic Shutter Assembly
Note:
Bird screen and louver are shipped in one (1) piece.
Outside
Louver
VentiMatic Shutter
Room side
Relief Air
Typical Discharge Air Arrangements
36" Deep Unit (750 to 1500 CFM)
Figure 7: Arrangement AT Unit Mounted Plenum With Front Discharge Double Deflection Grille
36" (914mm)
Grille Finish Is
Clear Anodized
Aluminum
4
/
/
2
"
(114mm)
Max.
Recess
16
5
/
8
"
(422mm)
36" (914mm)
Air
Flow
Figure 8: Arrangement AH Unit Mounted Plenum With Front Discharge Duct Collar
Shown With
Return Air Grille
36"
(914mm)
5
5
/
8
" (143mm)
7" (178mm)
x A
4" (102mm)
3
/
4
" (19mm)
36" (914mm)
Air
Flow
165/8"
(422mm)
40" Deep Unit (750 to 2000 CFM)
Figure 9: Bottom Discharge With Double Deflection Grille
16
5
/
8
"
(422mm)
7" (178mm)
x A
40" (1016mm)
Air
Flow
Shown With
Return Air Grille
40" (1016mm)
Grille Finish Is Clear
Anodized Aluminum
Discharge Grille Detail
Grille Blades Curved To Direct Air Horizontally Along Ceiling