Unit Depth; Installing Louvers - Daikin ARQ Installation Manual

Louver Installation With Typical Unit
Arrangements – 21⅞" Unit Depth
Figure 19: The 21⅞" (556mm) Deep Full Adapter Back
Unit with Closed Refrigerant Pipe Chase, Ducted with Top
Intake
Window Sash
Intake Louver
Important: Gasket sealing surface is required.
Page 12 of 42
"Goose Neck"
Insulated Duct (By Others)
Duct Collar (By AAF)
Unit Refrigerant Piping
Field Supplied
Water Piping
Floor Line
Self-Contained WSHP Unit Ventilator Models ARQ, ERQ, GRQ

Installing Louvers

Typical Installation Methods
If the fresh air opening has not yet been made, see figures 9 through 16
for the recommended locations and the job-specific plans for the exact
location. Follow local codes.
Cut the wall opening so that it is slightly larger than the louver being
installed. For dimensions, see Table 3. If the opening is already there,
measure to be sure there is a minimum of 3/8" (9mm) clearance around
all sides. For masonry installations, a lintel must be installed above
all louvers.
In thick wall applications, the portion of the wall between the louver
and the unit is the outside air plenum. Line this plenum area with 3/8"
(9 mm) mortar or other suitable material. In some applications, the job
specifications require a metal sleeve connection between the louver and
the unit. If using such a sleeve, properly caulk it to ensure a weather-
tight seal. This is critical in preventing freeze-ups, cold drafts, and air
infiltration. Be sure the wall is smooth, square, and provides a suitable
mating surface.
Table 3: Recommended Wall Openings For Wall Louvers
Recommended
Wall Openings
B C
For Wall Louvers
Length Height 24" Shutter 36" Shutter
48" 51" 48 ⁄ " 10 ⁄ "
5 7
8 8
(1219) (1295) (1222) (267)
60" 63" 60 ⁄ " 10 ⁄ "
5 7
8 8
(1524) (1600) (1527) (267)
72" 75" 72 ⁄ " 19 ⁄ "
5 7
8 8
(1829) (1905) (1832) (495)
Before setting the louver, construct a sloping, sealed cement mortar base
to drain unwanted moisture to the outside, (see figure 20). Be sure the
mortar base is 1" (25mm) thick at the unit and tapers toward the louver.
The mortar at the unit also acts as a backing against which the open
cell gasket of the unit itself can seal. This is critical in preventing water
leaks and air leaks under the unit. Be sure the sealed cement mortar
base is smooth and flush with the interior wall.
If it is not possible to construct a sloping mortar base, then field-supplied
flashing is required. See figure 21. The flashing should terminate flush
with the exterior of the building. Place a bead of caulk under the flashing
to prevent moisture from wicking back to the unit. Do not caulk the
joint between the louver and the flashing. This joint is designed to let
unwanted moisture escape.
Figure 20: Typical Louver Installation with Sloping Sealed
Cement Mortar Base
Wall
Louver
Sealed Cement
Mortar;
Pitch Away
From Unit
No
Caulk
Maximum Number of VentiMatic
VentiMatic Shutters Shutter(s)
Which Can Be Mounted Air Capacity
On Standard Louver Maximum
cfm
2 0 1000
1 1 1250
0 2 1500
Unit
Unit Gasket
1" (25mm)
Floor
L/s
472
590
708
IM 1083