McQuay AED Installation Manual

Installation & Maintenance Data IM 449-1

AAF-HermanNelson

Louver Installation For Self-Contained Unit Ventilators Models AZS, AZQ, AZR, AED and AEQ

Uncrating and Inspection

Upon receipt of the equipment, check carton for visible damage. Make a notation on the shipper’s delivery ticket before signing. If there is any evidence of rough handling, the cartons should be opened at once to check for concealed damage. If any is found, notify the carrier within 48 hours to establish a claim and request their inspection and a report. The Warranty Claim Department should be contacted.

Inspect the carton for any specific tagging numbers indicated by the factory per a request from the installing contractor. Check the number against the plans to be sure that the unit will be installed in the correct location.

Installation

Note: Installation and maintenance must be performed by qualified personnel who are familiar with local codes and regulations, and are experienced with this type of equipment. Caution: Sharp edges are a potential injury hazard. Avoid contact with them.

The standard wall louver is an aluminum, vertical, divided blade design complete with bird screen. This louver is also available with flanges and with a heavy-duty exterior lattice grille.

1. Figure 1 shows a detail of a typical wall louver. Carefully examine the louver and note the location of the bird screen and the notches (drain holes). The louver must be installed with the notches at the bottom and the bird screen toward the unit.

Group: Unit Ventilator Part Number: 106102001

Date: June 1999

Figure 1. Typical Wall Louver

Louver Blade

Bottom

Flange

Bird Screen

Fasteners

Drain Notch At Bottom

Factory Mounted

Demountable

Louver Section

Bird Screen

Information

Labels

Frame

Optional Flanges

Splitter Lines Up With Wall Sleeve Splitter

Optional Factory Mounted Exterior Grille

Mechanical Fasteners (Number Required Varies With Size of Louver)

2. Measure the opening to be sure it is a minimum 1/2" larger than the louver on all sides. Observe the opening in relation to the wall sleeve and unit. For proper unit operation, the louver must be centered left to right and top to bottom to the wall sleeve. If the louver is of such a dimension that it extends above, below or beyond the wall sleeve, then these areas must be blocked off airtight (see Figure 2).

Figure 2.

Shaded area of louver must be blocked off and made air-and watertight, by installing contractor.

Exaggerated oversize louver or wall opening.

Unit Wall

Sleeve

3. If the wall sleeve does not extend into the wall far enough to meet the louver, a field fabricated splitter must be provided. The splitter needs to extend far enough to engage the louver in order to form a proper seal (see Figure 3).

4. Check to see if the horizontal divider on the louver is the

same height as the horizontal splitter of the wall sleeve.

5. The louver consists of a frame, which must be permanently

mounted in the wall, and a demountable center louver section to all service access to the rear of the unit. To install the louver in the opening, the demountable center section must be in place. This will insure that the frame remains square during installation.

6. Before installing the louver in the opening, place a heavy bead of caulk along all sides of the frame that come in contact with the walls of the opening. Use a flexible, waterproof caulk such as silicone.

7. Once the louver has been placed in the opening, further mechanical fastening may be desired or required. Fasten in a manner appropriate to the installation. Care must be taken if fasteners are to be placed in the frame. If this is necessary, remove the demountable center section by removing the screws that hold it in place. Drill holes in the desired locations and fasten with flat head screws. Be sure these screws do not interfere with the reinstallation of the demountable section. Shims must be placed between the frame and the wall so it won’t be distorted. After the frame has been satisfactorily fastened, reinstall the demountable center section and secure with fasteners provided.

Once the frame and louver assembly has been installed, run a bead of caulk around the outside perimeter of the frame to seal it watertight. Caution: Do not plug the weep

holes in the bottom of the louver.

Louvers With Flanges

1. If the louver is supplied with flanges, follow steps 1 through 6 above. Additionally, place a bead of caulk on the portion of the flange that comes in contact with the building facade.

2. Place the louver in the opening and push it tight against the building. Fasten it to the exterior of the building using appropriate fasteners.

3. Seal the perimeter with a waterproof caulk to make it weathertight.

Figure 3. Rear View of Recessed Wall Sleeve With Horizontal Air Splitters

By Others. Wall Sleeve must

be sealed watertight at top and both ends at location shown. By Others. Louver must be sealed

By Others. Seal Horizontal Air Splitters to building at both ends.

By Others. Seal both ends of opening between Wall Sleeve and Intake.

Caution—Important. By Others: Attach Horizontal Air Splitters to Wall Sleeve Splitters as shown. Splitters to have 1" dia. drain hole approx. 6" from each end.

Wall Sleeve Splitter(s) (See Caution Below)

"D" Seal

By Others. Wall Sleeve must be sealed watertight at bottom at location shown. Refer to cross section detail of bottom of Wall Sleeve and Louver. (Figure 2.)

Seal Horizontal Air Splitter(s) to Louver. (By Others)

By Others. Building must be sealed between Wall Sleeve and under Louver for water runoff. Pitch toward Intake.

watertight at top and both ends.

⁄16" Under Intake must be free for water runoff. INTAKE MUST

STAND ON EMBOSSED FEET LOCATED ON BOTTOM.

AAF-HermanNelson 4900 Technology Park Boulevard, Auburn, NY 13021-9030 USA, (315) 253-2771

Printed on recycled paper containing at least 10% post-consumer material.

IM 449-1 (Rev. 6/99)