Daikin ARQ Installation Manual page 13

Figure 21: Typical Louver Installation with Flashing
Louver
Flashing
(By Others)
No
Caulk
Caulk
(By
Others)
CAUTION
Personal injury hazard. Wear protective gloves to avoid possible
cuts and abrasions from exposed edges. Avoid contact with sharp
edges.
See figures 8 through 24. Before setting the louver, be sure the drain
lip (vertical louver) are at the bottom, horizontal louver blades face
down and the bird screen is towards the unit. See figures 23 and 24.
Place a heavy bead of caulk along the top and the two vertical sides of
the louver, leaving the bottom uncaulked so that if moisture gets into
the area between the louver and the unit, it can drain to the outside,
unrestricted.
If the louver is supplied with flanges, (see figure 23) place an additional
bead of caulk on the inside of the top and side flanges that come in
contact with the building facade. Do not caulk the bottom flange. Place
the louver in the opening and push it tight against the supplied building,
fastening it to the exterior of the building using fasteners (by others)
appropriate to the installation. Seal the top and sides with a waterproof
caulk to make it weather-tight. Do not caulk the bottom of the louver;
doing so might trap unwanted moisture behind the flange. (See figure 23)
If the louver is supplied with no flanges, (see figure 24) place the louver
in the opening so that it is recessed a minimum 1/16" (2mm) beyond
the building facade or as directed in the architectural plans. If specified
in the plans, secure the louver in the wall using mechanical fasteners
(supplied by others) appropriate to the installation. (See figure 22 for
suggested fastening). With the louver solidly in place, run a bead of
caulk around the perimeter of the louver to seal it weather-tight. Do
not plug the weep holes (horizontal louver) or the drip line (vertical
louver). This might restrict the flow of unwanted moisture to the outside
(see figure 24)
See figure 21. If flashing was used instead of the sloping mortar base,
caulk the flashing where it meets the inside of the opening between the
louver and the unit. This helps prevent moisture from getting under the
flashing and into the room.
IM 1083
Wall
Unit
Unit Gasket
1" (25mm)
Floor
Self-Contained WSHP Unit Ventilator Models ARQ, ERQ, GRQ
Figure 22: Suggested method for fastening louver
(without flange) inside wall opening
Angle Iron
(by others)
Room Side
Wall Opening
Figure 23: Vertical or Horizontal Blade Wall Intake Louver
(Flanged) (Vertical Blade Shown)
Caulk
(top and 2 Sides)
Louvers
Drain Holes
(Do Not Block)
Flange
(4 Sides)
Figure 24: Vertical or Horizontal Blade Wall Intake Louver
(Recessed Without Flange) (Horizontal Blade Shown)
Louvers
Drain Holes (Do Not
Block With Mortar or
Caulking Materials
Louver
(Bird Screen Not Shown)
Exterior
Lintels (By Others)
Bird Screen
Sealed Cement Mortar
Pitched Away from Unit
Toward Louver
1" Minimum
Lintels (By Others)
Bird Screen
Sealed Cement Mortar
Pitched Away from
Unit Toward Louver
1" Minimum
Page 13 of 42