AAF-HermanNelson AEQ User manual

AAF®-HermanNelson®Classroom Self-Contained Unit Ventilator
Model AEQ
MicroTechII™, Electromechanical Controls
©2006 McQuay International IM 798 (10-06)
Vertical Floor Self-Contained Air Source Heat Pump – Model AEQ
Improper installation can cause equipment damage, personal injury or death. Before beginning
installation, please read this publication in its entirety.
Develop a thorough understanding before starting the installation procedure.
This manual is to be used as a guide. Each installation is unique, so only general topics are covered.
The order in which topics are covered may not be those required for the actual installation.
IMPORTANT!
C
Installation Manual IM 798
Group: UnitVentilator
Part Number: 106506240
Date: October 2006

Page 2 of 60 / IM 798 AE Self-Contained Unit Ventilator
Table of Contents
Safety Information ............................................... 3
Receiving, Handling, & Storage ............................... 4
Important Information..................................................................... 4
Transportation Damage................................................................... 4
Equipment Storage.......................................................................... 4
Lifting, Moving, and Stacking........................................................ 4
Stacking Component Cartons................................... 5
Complete Installation Procedure Summary Checklist ................... 5
Typical Self-Contained Floor Unit, Wall Sleeve, Louver
Components ....................................................... 6
Step 1 – Wall Opening Procedure
Wall Sleeve Opening Procedure..................................................... 7
Locating Exterior and Interior Wall Opening
(Existing Building) ......................................................................... 7
Cutting Exterior Wall Opening ...................................................... 8
Cutting Interior Wall Opening.....................................................8-9
Louver and Grille Details ............................................................. 10
Step 2 – Installing Louver
Louver Installation Considerations .............................................. 11
Installing Louvers ....................................................................11-12
Top Plan Views .............................................. 13-14
No Recess...................................................................................... 13
Partial and Full Recess.................................................................. 14
Louver Installation Methods............................... 15-17
Step 3 – Installing Wall Sleeve
Wall Sleeve Details....................................................................... 18
Pre Wall Sleeve Installation Checklist ......................................... 19
Wall Sleeve Details & Dimensions .............................................. 19
Typical Wall Sleeve Applications ................................................ 20
Unit Room Projection and Splitter Length Details ...................... 21
Recessed and Full Projection Wall Sleeve................................... 22
Recessed Applications .................................................................. 23
Sealing Wall Sleeve and Horizontal Air Splitters........................ 23
Sealing Wall Sleeve to Louver ..................................................... 24
Full Projection Applications ....................................................24-26
Heat Pump Condensate Drain Disposal Stub-Up Details ............ 26
Step 4 – Wall Sleeve Electrical Connections
Electrical Connection Procedure ................................................. 27
Wall Sleeve Electrical Stub-up Details ....................................... 28
Wall Sleeve Junction Box Electrical Terminals ....................29-30
Step 5 – Installing the Unit Ventilator
Pre Installation Checklist............................................................. 31
Remove Packaging and Inspect the Unit(s) ................................ 31
Before Moving the Unit Up to Wall Opening Checklist ............ 32
Position the Unit Ventilator ......................................................... 32
Removing Unit from the Skid ..................................................... 32
Before Sliding the Unit into Place............................................... 33
Installing Casters.......................................................................... 34
Heating Condensate Disposal into Building Drain System ........ 35
Step 6 – Unit Electrical Control Connections
Model AE Electrical Data - Size 024, 030, 036.......................... 36
Model AE Electrical Data - Size 040, 044, 048, 054.................. 37
MicroTech II Wiring Diagram (Typical)..................... 38
MicroTech II Unit Mounted DDC Control Components 39-41
MicroTech II Remote Wall Mounted Sensor ........... 42-44
Electromechanical Control Wiring Diagram ........... 45-49
20% OA with Elect. Ht. 200/60/3, 230/60/3, 460/60/3 .............. 45
20% OA for Elec. Ht.................................................................... 46
Unit Mntd. Manual Changeover, Two-stage Elec. Ht ................ 47
Unit Mntd. Auto Changeover, Two-stage Elec. Ht..................... 47
Wall Mntd. Auto/Manual Changeover Two-stage Elec. Ht. ...... 48
Unit Mntd. Auto Changeover, One-stage T'stat with Wet
Heat or Elec. Ht............................................................................ 48
20% Outside Air for Elec. Ht. - Night Controls.......................... 49
Step 7 – Installing Wall Filler, Spacer,
End Panel
18" Wall Filler Section ................................................................ 50
12" Spacer Assembly ................................................................... 51
End Panel Dimensions ................................................................. 52
End Panel Assembly .................................................................... 52
Step 8 – Installing VentiMatic Shutter
Installing VentiMatic Shutter .................................................53-54
Step 9 – Prepare for Start-up
Prepare Unit Ventilator for Start-up............................................ 54
Step 10 – Check, Test and Start Procedure
Check, Test and Start Procedure ................................................. 55
Product Identifier (Data Plate Specific Information) ..... 56
Glossary of Related Terms ................................... 57
Index Alphabetical Listing .................................... 58

IM 798 AE Self-Contained Unit Ventilator / Page 3 of 60
Recognize safety information. When you see a safety symbol on
the unit or in these instructions, be alert to the potential for personal
injury. Understand the meanings of the words DANGER,
WARNING, and CAUTION.
DANGER identifies the most serious hazards that will result in
death or severe personal injury.
WARNING means the hazards can result in death or severe
personal injury.
CAUTION identifies unsafe practices that can result in personal
injury or product and property damage.
Safety Information
Disconnectallelectricalpowerbeforeservicing
unit to avoid injury or death due to electrical
shock.
Hazardous Voltage!
Disconnect all electric power including remote disconnects
beforeservicing.Failuretodisconnectpowerbeforeservicing
can cause severe personal injury or death.
Use copper conductors only. Unit terminals are not designed
to accept other types of conductors. Failure to do so can
cause damage to the equipment
DANGER
!
WARNING
!
CAUTION
!
Installation and maintenance are to be performed only by
qualified personnel who are familiar with and in compliance
with state, local and national codes and regulations, and
experienced with this type of equipment, Sharp edges and
coilsurfacesareapotentialinjuryhazards.Avoidcontactwith
them.
CAUTION
!
During installation, testing, servicing and troubleshooting of
this product, it may be necessary to work with live electrical
components.Aqualifiedlicensedelectricianorothertechnician
trained and experienced in live electrical components should
perform these tasks. Failure to follow all electrical safety
precautions when exposed to live electrical components can
result in death or severe injury.
WARNING
!
Improper installation, adjustment, service, maintenance, or use
can cause, fire, electrical shock, or other conditions which can result
inpersonalinjuryorpropertydamage.Thisproductmustbeinstalled
only by personnel with the training, experience, skills, and appli-
cablelicensingthatmakeshim/her“aqualifiedprofessionalHVACR
installer.”
Follow all applicable safety codes. Wear safety glasses and work
gloves. Use a quenching cloth for brazing operations. Have a fire
extinguisher available. Follow all warnings and cautions in these
instructions and attached to the unit. Consult applicable local build-
ing codes and National Electrical Codes (NEC) for special
requirements.
TomeetIBCSeismicstandards, theself-containedunitventilator
must be secured to the floor, and should only be done after complet-
ing all procedures described in Step 5, on pages 32 through 34.
When the unit is in the correct location, remove the optional
casters from the right and left end unit compartments, and retain for
later use. The bottom plate cutouts, removed earlier to accomodate
the caster wheels, should be replaced.Using a 1/4" masonry bit, drill
throughthe unit bottomplate andinto thefloor inthe areas indicated
in the figure at right (circled). Determine the location of the holes
basedon clearance, and the existenceof the unitbottom plate, andas
close to the front edge of the unit as possible. Vacuum the concrete
dust that remains, so it is not drawn into the unit components upon
start up.
Usingapowerdrillwitha5/16"hexsocketbit,securetherightand
left ends of the unit with two (2) (contractor supplied)
1/4" dia. x 2" x 5/16" hex washer head masonry screws (or equiva-
lent). Tighten the screws down until the unit is secure to the floor,
without distorting the unit bottom plate.
Meeting Seismic Standards
1/4"dia. x 2" x 5/16"
Hex Washer Head
Concrete Screw – 2
Right End Compressor
Compartment
Right End -
Optional
Caster
Left End Compartment -
Area for Securing Unit to Floor
Right End Compartment -
Area for Securing Unit to Floor

Page 4 of 60 / IM 798 AE Self-Contained Unit Ventilator
Equipment Storage
If equipment is stored for any length of time before installation, it
should remain in its shipping packaging in a clean, dry, climate
controlled area. For extended storage times, rotate indoor fan motor
and outdoor fan /motor assemblies periodically to prevent flattening
of the bearing.
Lifting, Moving, and Stacking
A forklift with 72" tines, or other lifting device is needed to move
these products (Figure 1).
Move the louver, wall sleeve, or unit to the location at which it is
to be installed before uncrating. Check tagging on carton to confirm
that the item is correct for the location. The carton for the unit is
imprinted with the AAF®-HermanNelson®trademark which is the
"front" or room side of the unit. The end of the unit carton marked
"TruckFromThisEnd"shouldbeontheright-handsidewhenfacing
the front of the carton.
Forklift-type vehicles may be used to unload and move the
cartons. When using a forklift, it is important that the products
remain banded to its skid and be lifted only from the end designated
on the carton (Figure 5). Move only one unit at a time. Do not drop
unit.
Use 72" length forklift tines. Short tines will damage the unit
bottom. Improper handling can damage internal components
CAUTION
!
4’
6’
Figure 1 – Forklift Lifting Requirements
Important Information
Made in the U.S.A., pride and workmanship go into every AAF®-
HermanNelson®Model AE self-contained unit ventilator to provide
our customers with quality products. Products should be installed
and serviced only by qualified installers and service technicians
familiar with and in compliance with state, local and national codes
and regulations, and experienced with this type of equipment. This
installation manual is designed to help with the installation and
start-up.
Transportation Damage
Items supplied by McQuay may include louvers, wall sleeve,
Model AE unit and accessories. Each item has been carefully
inspected and securely packed in a McQuay-approved carton at the
factory. In addition, each Model AE unit has been operated at the
factory to verify proper performance. The carrier checked the items
when the shipment was loaded and assumed responsibility for
damage or loss upon acceptance of the shipment.
The purchaser is responsible for filing the necessary claims with
the carrier. Check each carton upon arrival for external damage or
shortages. Note any damage or shortage and any damage on all
copies of the freight bill. If damage or shortages are found, the
consignee should:
1) Note any visible damage to the shipment or container on all
copies of the delivery receipt and have it signed by the carrier’s
agent. Failure to adequately describe such external evidence of
a loss or damage may result in the carrier refusing to honor a
claim.
2) Notifycarrierpromptlywithawrittenrequestforaninspection.
3) In case of concealed loss or damage, or damage and/or loss that
does not become apparent until the product has been unpacked,
notify the carrier as soon as possible, preferably within five (5)
days and no later than 15 days.
4) File the claim within the six (6) month statute of limitations of
the carrier with the following supporting documents:
a) Original Bill of Lading, certified copy, or indemnity bond.
b) Original paid freight bill or indemnity in lieu thereof.
c) Original invoice, or a certified copy thereof, showing trade and
other discounts or reductions.
d) Copy of the inspection report issued by carrier’s representative
at the time damage is reported to the carrier.
Thecarrierisresponsibleformakingpromptinspectionofdamage
and for providing a thorough investigation of each claim. McQuay
will not accept claims for transportation damage.
To help avoid concealed damage:
1) Lay the louvers on their side for shipping, handling and storage.
Do not stack louver more than 10 high (Figure 2).
2) Do not stack wall sleeves more than 2 high (Figure 3).
3) Model AE unit ventilators must be shipped, handled and stored
right-side up. Do not stack units more than two (2) high
(Figure 4).
Receiving, Handling, and Storage
NOTICE
McQuaylouvers,wallsleeves,ModelAEunitsandaccessories
arecarefullypackedandthoroughlyinspected before leaving
thefactory. The carrierassumedresponsibility fordamage or
loss upon acceptance of the shipment. Claims for loss or
damagesustainedintransitmustbemadeuponthecarrieras
follows:
VISIBLE LOSS OR DAMAGE
Anyexternalevidenceoflossordamagemustbenotedonthe
freight bill or carrier’s receipt and signed by the carrier’s
agent.Failuretoadequatelydescribesuch external evidence
ofloss ordamage mayresult inthecarrier’s refusingto honor
a damage claim. The form required to file a claim will be
supplied by the carrier.
CONCEALED LOSS OR DAMAGE
Forconcealedloss ordamage(damageand/orlossthatdoes
not become apparent until the product has been unpacked),
make a written request for inspection by the carrier’s agent
within fifteen (15) days of the delivery date. File a claim with
the carrier since such damage is the carrier’s responsibility.

IM 798 AE Self-Contained Unit Ventilator / Page 5 of 60
Stacking
Correct
Incorrect
10 high
Louver Cartons
Figure 2 – Stack Louvers Maximum 10 High as Shown
Unit Cartons
Figure 4 - Stack Units Maximum 2 High as Shown
Wall Sleeve Cartons
Figure 3 – Stack Wall Sleeve Maximum 2 High as Shown
Figure 5 - Unit Package Dimensions
ByMcQuay
MADE IN USA
Unit Ventilator
TRUCK FROM THIS END
CAUTION
To prevent unit damage, 72”
forklift tines must be used to
lift or move this crate
CAUTION
Damage to theunit can result
if crates are stacked more
than (2) high
4’
Plasticpackagingisasuffocationhazard.
Disposeofproperly
.Keepawayfrom
children.
WARNING
Heavy3-plycardboard.
Recycletohelptheenvironment.
NOTICE
UP
HANDLE WITH CARE
MANEJE CON CUIDADO
MANIEZ AVEC PRUDENCE
FRAGILE
6’
Corrugated
Recycles
Instruction Sheet Included
Se Incluye Hoya De Instrucciones
Feuille D`Instruction Incluse
UP
HANDLEWITHCARE
MANEJECONCUIDADO
MANIEZAVECPRUDENCE
FRAGILE
DAMAGE
IMPORTANT
Thismerchandisewascarefullypackedandthoroughlyinspectedbefore
leavingourfactory.Responsibilityforsafedeliverywasassumedbythe
carrieruponacceptanceoftheshipment.Claimsforlossordamagesustained
intransitmustbemadetothecarrierasfollows:
VISIBLELOSSORDAMAGE
Anyexternalsignoflossordamagemustbenotedonthefreightbillorexpress
receipt,andsignedbythecarrier’sagent.Failuretoadequatelydescribesuch
externalevidenceoflossordamagemayresultinthecarrierrefusingtohonor
adamageclaim.Thecarrierwillsupplytheformrequiredtofilesuchaclaim.
CONCEALEDLOSSORDAMAGE
Concealedlossordamagemeanslossordamagewhichdoesnotbecome
apparentuntilthemerchandisehasbeenunpacked.Thecontentsmaybe
damagedintransitduetoroughhandlingeventhoughthecartonmaynot
showexternaldamages.Suchdamageisthecarriersresponsibility.
Whenthedamageisdiscovereduponunpacking,makeawrittenrequest
forinspectionbythecarrieragentwithinfifteendaysofthedeliverydate,
andfileaclaimwiththecarrier.
C
B
ANOTE:All dimensions are approximate only and are subject to change
without notice. Refer to approved submittal prints for rough-in
details and construction purposes and for recommended wall
opening size.
Model Shipping Loading Truckload Quantity
AE "A" "B" "C" Weight (L x W x H) of Identical Units
024, 030 107" 31" 39" 885 lbs. 5' x 3' x 2' 30
036, 040 107" 31" 39" 975 lbs. 5' x 3' x 2' 30
044, 048, 119" 31" 39" 1075 lbs. 4' x 3' x 2' 24
054
Table 1 - Shipping Carton Dimensions & Weights
Complete Installation Procedure Summary
Read this manual in its entirety and understand the
installation procedures
Wall opening cut
Lintel(s) in place to support masonry wall over opening
Electrical and control wiring roughed in
Rough opening envelope smooth and sealed
Position of louver marked for mounting to wall opening
Position of wall sleeve marked where it extends and at
points where mounts to wall and floor
Splitters fabricated
Metal flashing in place or sealed sloped mortar bed for
drainage from wall sleeve "D" seal channel to bottom of
louver
Louver installed and sealed at bird screen toward wall
sleeve
Splitter(s) enclosures installed and sealed to louver
Wall sleeve installed and sealed air and water tight
Splitters attached to wall sleeve and sealed
Electrical run and control wiring connections made to
wall sleeve junction box
Interior wall finished
Shut-off valves installed below floor grade for water or
steam
Unit Installed
Drain installed for defrost condensate removal
2 high
2 high
Correct
Incorrect
Correct Incorrect

Page 6 of 60 / IM 798 AE Self-Contained Unit Ventilator
Carefully arrange the location and installation of each model AE
unit to provide convenient service access for maintenance and, if
necessary,removaloftheunit.Theinstallationconsistsoffourbasic
elements in the following order:
1. Louver
2. Galvanized Wall Sleeve
3. Horizontal Air Splitters by others (if required)
4. AE Self-contained Unit Ventilator
The louver brings in outdoor air for the outdoor fan section and
ventilation air to the classroom while providing a path for heated
outdoor air to exit.
The Wall Sleeve secures the unit, provides a watertight and air
tight seal to the building and brings in electrical and control wiring
(if required). It contains the unit main power disconnect switch
which is located in the wall sleeve junction box. All field electrical
connections are made inside this box.
Horizontal Air Splitters provide proper air paths and minimize air
recirculation.
The AE self-contained air source unit ventilator provides comfort
cooling and heating for the space. The Model AE unit is designed to
be installed into or up against an inside wall. The louver, air splitters
(if required) and wall sleeve are installed before the AE unit is
installed.
On many jobs, the louver and wall sleeve are shipped ahead of the
unititself. Installation instructionsforthesecomponentsare shipped
with the individual components included in this publication.
Figure 6 - Typical Frame and Brick Construction with Partial Recess

    


Outside Air
Outdoor Discharge Air
Outdoor Supply Air
Textured Charcoal Bronze Unit Projection Top
(Except Fully Recessed Wall Sleeve)
Conduit (by others)
Wall Sleeve Junction Box
Galvanized (Outdoor) Section
Textured, Scuff Resistant, Charcoal Bronze,
Environmentally Friendly Thermosetting Urethane
Powder Paint Top
4. AE Self-Contained Unit Ventilator
2. Galvanized Wall Sleeve
1. Louver
Must be sealed watertight at top and both ends
Bottom Flange
Weep Holes
Louver Blade
Louver–Bird Screen
Drain Holes in
Splitters (by others)
Seal Horizontal Air
Splitters to Building
at Both Ends
Optional Louver
Flange
3. Horizontal Air Splitters
(Field Made to Job Conditions by
Others) Pitch Down Toward Louver
Sealed Cement Mortar, Pitched Away from Unit Toward Louver
Wall Sleeve Threaded Studs for Fastening to Unit
(Ships on Wall Sleeve)
Caster on Outdoor Section
Caster Kit for
Indoor Section (Optional)
6" End Panel(Optional)
Internal Column for
Wall Bracing and
Anchoring
(by others)
Typical Self-Contained Floor Unit, Wall Sleeve, Louver Components
Heating Defrost
Condensate Drain
(By Others)

IM 798 AE Self-Contained Unit Ventilator / Page 7 of 60
Figure 9 – Partial Recess, Frame and Brick Construction
Figure7–NoRecess(FullProjection), ThinWallConstruction
Figure 8 – Full Recess, Thick Wall Construction
Transfer interior
rough-in opening
location to exterior
wall surface
Transfer interior rough-in
opening location to exterior
wall surface
Wall Sleeve
Wall Sleeve
Non-recessed Wall
Sleeve Mounting
Flanges (Remove
Flanges to Mark
Interior Wall Surface)
Existing Wall
Mark Interior
Wall Surface
1/4" Larger
than Wall
Sleeve
Recess
Dimension
Top View - Interior
Rough-in Opening
Transferred to
Exterior Wall
Top View - Interior
Locating Wall Opening (Existing Building)
Step 1– Wall Opening Procedure
An opening in the outside wall is required to accommodate the
wall sleeve and louver. The wall opening must be of sufficient size
to allow proper fit of the louver and will depend on the type of wall.
National and local codes for building construction must be followed
and may supercede the suggested methods in this manual.
NOTICE
Wall and floor must be at 90oto one another. If not, the floor
must be leveled (90o) to wall.
The first step in the installation is to carefully locate the area of
interior and exterior wall to be removed. Determine the appropriate
location on the interior wall where the unit ventilator is to be
installed. Using the rear edge of the wall sleeve as a guide, mark the
interior wall surface for the rough-in wall sleeve opening 1/4" larger
at each end than the wall sleeve recess dimension, and 1/4" higher
(see table 2). In all cases, the bottom of the outdoor louver opening
must be at the same height as the floor line.
Fornon-recessed installations,(fullprojection),mark theposition
of the wall sleeve on the interior wall surface with the wall mount
flanges removed to help determine the location of the outdoor wall
surface rough opening.
Transfer the interior wall opening dimensions to the exterior wall
surface, being certain the opening is 1/4" larger at each end than the
wall sleeve recess dimension, and 1/4" higher.
Mark Interior
Wall Surface
1/4" Larger
than Wall
Sleeve
Recess
Dimension
Unit ventilators use fresh air to condition the interior space.
Obstructions near the louver wall opening must be removed
to allow free flow of entering and discharge air. Building and
vehicleexhaust,etc.,nearthelouverintakemustbeidentified
and eliminated.
CAUTION
!
Transfer interior
rough-in opening
location to exterior
wall surface
Rough-in Opening
Transferred to
Exterior Wall
Step 1 – Wall Opening Procedure

Page 8 of 60 / IM 798 AE Self-Contained Unit Ventilator
Read louver and wall sleeve installation sections before
proceeding (pages 9 - 26). Improper installation can result in
property damage.
Cutting Interior Wall Opening
Next, the interior wall is cut as shown in Figure 12. If any portion
of the wall sleeve is to be recessed into the wall, the opening must be
large enough to accommodate the wall sleeve (see Table 3). In all
cases, the bottom of the wall opening must be at the same height as
the floor line. Seal the floor of the wall opening to permit water to
drain under the louver and away from the building interior. If the
building is a panel wall, the sleeve will be nonrecessed (full
projection) and all of the unit will remain in the room.
Figure 12 - The interior wall opening is cut.
Cutting Exterior Wall Opening
The wall opening must be of sufficient size to allow proper, yet
snug,fitofthelouverandwilldependonthetypeofwall.Ifthelouver
is to be installed in a masonry wall, install a lintel to support the wall
abovethewall sleeve and louver. Installa sleeve to preventmoisture
from seeping into the wall interior. Refer to approved submittal
prints for recommended rough wall opening size.
The following is a typical procedure for installing in existing
masonry walls. Follow local codes and safety procedures.
If the Model AE unit is to be installed in an existing classroom, an
opening must be cut in the outside wall to accommodate the wall
sleeveandlouver. Thisisaccomplishedasfollows:First, theoutside
ofthemasonrywall iscutwithacarborundumorothersuitableblade
as shown in Figure 10. This opening should be 1/2" larger overall
than the size of the louver supplied with the unit (see Figure 11 &
Table 2).
Figure 10 - Cutting the outside wall rough opening slightly
larger than the size of the louver.
Figure 11 - Rough-in Dimensions of Exterior Wall for Louvers
281/4" (715mm)
See Table 2
for Width
Exterior Wall
Interior Wall
CAUTION
!
NOTE: See louver installation section. Dimensions are
approximate and are dictated by job site conditions.
Horizontal splitters (by others) must be installed whenever
there is space between the wall sleeve and the louver.
Seal the ends of the wall opening. Pitch splitters toward the
louver for water drainage (see sealing wall sleeve and
horizontal splitters, pages 23 & 25).
CAUTION
!
Step 1 – Wall Opening Procedure
Unit Size Width Height
IN MM IN MM
024 – 030 841⁄22140 281⁄4715
036 – 040 961⁄22444 281⁄4715
044, 048, 054 1081⁄22747 281⁄4715
Table 2 - Recommended Rough-in Dimensions for Louvers
with or without Flange (Exterior Wall)

IM 798 AE Self-Contained Unit Ventilator / Page 9 of 60
The interior wall is then knocked out in the area cut for the wall
sleeve as shown in Figure 13.
If the wall consists of concrete block with brick (or other) veneer
and the louver opening is smaller than the opening of the wall sleeve
(whichistoberecessed),becarefultoknockoutonlythe veneerthat
is necessary.
Afterthe opening isfinished(Figure14), alintel must beinstalled
above the opening in masonry walls to support the remaining block
and brick (Figure 15). The wall must contain a solid surface or an
internalcolumnateachendforbracingandanchoringthewallsleeve
and louver (by others).
New Buildings
In new construction, if any portion of the wall sleeve is to be
recessed into the wall, the opening must be large enough to accom-
modate the wall sleeve (see Table 3). For smaller wall thickness, the
wall sleeve will be nonrecessed (full projection) and all of the unit
willprojectintotheroom.Inallcases,thebottomofthewallopening
mustbe at thesame heightas thefloor line.A lintelmust beinstalled
above the opening in masonry walls to support the block and brick.
The wall must contain a solid surface or an internal column at each
endforbracingandanchoringthewallsleeveandlouver(byothers).
The wall opening must be sealed and made watertight. See
the louver, splitter and wall sleeve installation sections
Shut-offvalvesforhotwaterandsteammustbeflushwiththe
floor to allow unit installation and removal (see piping
arrangements, page 41).
Figure 14 - A Lintel must be installed above the opening to
support the remaining block and brick.
Wall Sleeve Sleeve Recommended
Unit Size w/Flange (Recessed) Rough-in Wall Opening
Length Length Length Height
024 86" 84" 841⁄2"28
1⁄2"
030 (2184mm) (2145mm) (2146mm) (724mm)
036 98" 96" 961⁄2"28
1⁄2"
040 (2489mm) (2489mm) (2451mm) (724mm)
044
048 110" 108" 1081⁄2"28
1⁄2"
054 (2794mm) (2755mm) (2756mm) (724mm)
Figure 13 - The interior wall is knocked out in the area cut for
the wall sleeve.
Top, bottom and sides of wall
envelope made smooth
and waterproof
Figure 15 - Lintels installed
Table 3 - Recommended Rough-in Wall Opening for Wall
Sleeve
Lintels installed above the opening
to support block and brick
28
1
/
2
" (724mm)
Exterior Wall
Interior
CAUTION
!
CAUTION
!
Step 1 – Wall Opening Procedure
Internal column at each
end for bracing and
anchoring
(by others)
Condensate Drain for Heat Pump Considerations
Aheating defrost condensate draintube(byothers),must connect
to the building drain system (page 26, Figure 57 & 58). The heating
defrost condensate drain is located in the left end unit compartment.
The building drain must be located below the floor line to allow
installation and removal of the unit.
If a building condensate drain is not used, and the drain line
isexposedtofreezingtemperature,adequatefreezeprotection
must be provided.
CAUTION
!

Page 10 of 60 / IM 798 AE Self-Contained Unit Ventilator
Figure 19 – Vertical Blade Louver, Shown Without Flange
Louver Details
NOTE: Please refer to “Transportation Damage” on page 4 for
information on receiving, inspection, and filing claims for damage
or loss with the carrier, and handling items supplied by McQuay.
Louver Louver Insert
Unit Size Face A x B MM (H x W x Thick) MM
024, 030
30" x 87" 762 x 2210 28" x 84" x 2
1
/
2
"711 x 2134 x 64
036, 040 30" x 99" 762 x 2515 28" x 96" x 2
1
/
2
"711 x 2438 x 64
044, 048,
30" x 111" 762 x 2819 28" x 108" x 2
1
/
2
"711 x 2743 x 64
054
Figure 16 – Typical Flanged Wall Louver and Optional Grille
LouverFlange
Optional Factory
Mounted
Exterior Grille
Mechanical Fasteners
(Number Required
Varies With Size of
Louver)
Drain Notch At Bottom
Behind Flange
Louver Blade
Information Labels
Frame
Factory Mounted
Bird Screen
Bird Screen
Fasteners
Detail of Notches (Drain Holes)
Flange
14" (356 mm)
±1⁄8" (3.2 mm)
"W " (See Table 1)
Figure 17 – Flanged Wall Louver Dimensions with Optional
Grille Detail
28"
(711 mm)
21⁄2" (63.5 mm)
Table 4 – Wall Louver Dimensions (Check Required Size)
Unit Size Width Height
IN MM IN MM
024 – 030 841⁄22140 281⁄4715
036 – 040 961⁄22444 281⁄4715
044, 048, 054 1081⁄22747 281⁄4715
Table 5 - Recommended Rough-in Dimensions for Louvers
with Flange (Exterior Wall)
NOTE: All dimensions are approximate and subject to change
without notice.
NOTE: All dimensions are approximate and subject to change
without notice.
B
A
Louver Flange
Blockoff
17⁄20"
(1.35 mm)
1" (25 mm)
Step 2 – Installing Louver
Louver Blade
Square lattice grille
openings align with
the louver blade air
passages maximizing
the air opening.
Optional heavy-duty
lattice grille
Turned edge on louver blade entering and leaving surface reduce the visibility
ol the outdoor coil and fan section. Adds rigidity to louver.
Louver Flange
Figure 18 – Vertical Blade Louver, With Flange
Outside View
Louver Flange
Louver drain lip
Bird Screen on side toward unit
Louver with weep holes
Bottom
Outdoor Section
Discharge Air
Outdoor Section
Inlet Air
9"
(229mm)
12"
(305mm)
Inside View
Bottom splitter
location Top splitter location
51/2" (135mm)
Top
Outdoor Section
Discharge Air
Outdoor Section
Inlet Air

IM 798 AE Self-Contained Unit Ventilator / Page 11 of 60
4. Check to see if the horizontal divider on the louver is the
sameheightasthetophorizontalsplitterrailofthewallsleeve.
The louver frame must be permanently mounted in the wall.
5. Beforeinstallingthelouverintheopening,placeaheavybead
of caulk along the top and two sides of the frame that come in
contact with the walls of the opening. Use a flexible, water-
proof caulk such as silicone.
6. 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 (see pages 15-17 for
typical louver installation methods). Care must be taken if
fasteners are to be placed in the frame. If this is necessary,
removethelouverbyremovingthescrewsthatholditinplace.
Drill holes in the desired locations and fasten with flat head
screws.Besurethesescrewsdonotinterferewiththereinstal-
lation. Shims must be placed between the louver and the wall
so it won't be distorted. After the louver has been properly
positioned, secure with fasteners.
In masonry wall applications, the louver may be permanently
mounted by placing mortar around the top and sides in order to
prevent it from being removed. Mortar keys may be attached to the
louver, if necessary.
Installing Louvers
Typical Installation Methods
If the outside opening has not yet been made, see figures 23
through28fortherecommended locationsandthejob-specificplans
for the exact location. Follow national and local codes.
Wall Opening
Cut the wall opening so that it is slightly larger than the louver
being installed (see Table 2, page 8).
Fordimensions,seeTable4&5,page10.Iftheopeningisalready
there,measuretobesurethereisaminimumof3/8"(9mm)clearance
aroundallsides.Formasonryinstallations,follownationalandlocal
codes and install a lintel above all louvers.
Outside Air Plenum
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) sealed cement 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 for a weather tight seal to help prevent moisture
from seeping into the wall.
Sealing is critical in preventing freeze-ups, cold drafts, air
infiltration, and to prevent moisture from entering the wall or
room. Be sure the wall is smooth, square, and provides a
suitable mating surface.
Louver Installation Considerations
Thestandardlouverisanaluminum,vertical,dividedbladedesign
complete with bird screen. This louver is also available with flanges
and/or with a heavy-duty exterior lattice grille.
1. Figure 18 & 19 shows a detail of a typical louver. Before
installation, carefully examine the louver and note the loca-
tion of the bird screen and the notches (drain holes). The
louver must be installed with the small opening at the top,
notches at the bottom and the bird screen toward the room. If
the louver is to be installed in a masonry wall, there must also
be a lintel to support the existing wall above the louver
2. Measuretheopeningto besurethereisadequateclearancefor
thelouveraroundthesides.Observetheopeninginrelationto
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,orbeyondthewallsleeve,thentheseareasmust
be blocked off airtight (Figure 21).
3. If the wall sleeve does not extend into the wall far enough to
meet the louver, field fabricated splitter(s) must be provided.
The splitter(s) need to extend far enough to engage the louver
in order to form a proper seal (see splitter length details
beginning on page 21.
Shadedareaoflouver must
be blocked off & made air-
and watertight, by install-
ing contractor.
Exaggerated oversize
louver or wall opening. Unit Wall
Sleeve
Figure 21 – Oversize Wall Opening

 
   
 



  
 
    
Caulk top and two
sides of the frame
that come in contact
with the walls of the
opening
Field fabricated
splitters engage the
louver to form a proper
seal, and seal at ends
where they come in
contact with the wall
opening
Seal
Seal
Seals
Wall
Sleeve Unit
Figure 22 – Typical Field Fabricated Splitters
CAUTION
!
See page 25 for detail of attaching splitters to wall sleeve.
CAUTION
!
Seeimportantinformationonbottomsplitterseal,anddrainage
from condenser section drain pan (figures 49 & 50).
Louvers by AAF®-HermanNelson®provide proper airflow.
Properunitperformancehasnotbeenverified withlouversby
others.
CAUTION
!
Step 2 – Installing Louver

Page 12 of 60 / IM 798 AE Self-Contained Unit Ventilator
Personal injury hazard. Avoid contact with sharp edges.
Before setting the louver, be sure the drain lip (vertical louver) is
at the bottom, and the bird screen is toward the unit (see Figures 16
through 20). 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.
Louver With Flanges
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 building. Fasten 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 will trap unwanted moisture
behind the flange.
Louver Without Flanges
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
architecturalplans(seeFigure24) Ifspecifiedintheplans,securethe
louver in the wall using mechanical fasteners (supplied by others)
appropriate to the installation. With the louver solidly in place, run
a bead of caulk around the perimeter of the louver to seal it weather-
tight.Donotplugthebottomweepholesorthedriplineofthelouver.
This will restrict the flow of unwanted moisture to the outside.
If flashing was used instead of the sloping mortar base, caulk the
flashing where it contacts the “D” seal of the wall sleeve, the sides
of the wall, etc. (see Figure 24). This helps prevent moisture and
outside air from getting under the flashing and into the room.
CAUTION
!
Caulk and Seal
underneath
flashing
(By Others)
Flashing
(By
Others)
Figure 24 - Typical Louver Installation with Sloped Flashing
Unit
Louver
“D” Seal Wall Sleeve
Cross Channel
No Caulk
between
flashing and
louver
Recess Louver a
Minimum of 1/16"
Beyond the
Building Facade if
Louver Does Not
Have Flanges
Sloping, Sealed Cement Mortar Base
Before setting the louver, construct a sloping, sealed cement
mortar base to drain unwanted moisture to the outside, (Figure 23).
Be sure the mortar base tapers toward the louver and away from the
wall sleeve. The mortar at the wall sleeve also acts as a drain for
excess moisture from the outside to drain back outside, thus it must
extendsoitmeetsthe“D”sealflangeofthewallsleeve.Temporarily
slidethewallsleeveintoplacetomarkthismeetingpointonthefloor
(see Step 3 on page 23). The mortar should be the same height as the
“D”seal flange.Besurethesealedcementmortar baseissmoothand
flush along the wall sleeve “D” seal flange. This is critical in
preventing water leaks and air leaks under the unit.
Sloped Flashing
If it is not possible to construct a sloping mortar base, then field-
supplied flashing is required that is pitched for water drainage
(Figure 24). The flashing should terminate flush with the exterior of
thebuilding. Theflashingshouldextendso it isunderthewall sleeve
andmeetsthe“D”sealflange ofthewallsleeve.Placeabeadofcaulk
undertheflashingtopreventmoisturefromwickingbacktothe unit.
Donot caulk the jointbetween thelouver and theflashing. Thisjoint
is designed to let unwanted moisture escape.
Sealed
Cement
Mortar;
Pitch Away
From Unit
Unit
Louver
No Caulk
Figure 23 - Typical Louver Installation with Sloping Sealed
Cement Mortar Base (Splitters not shown)
No Caulk, and
do not plug
with mortar
“D” Seal Wall Sleeve
Cross Channel
Leave Gap for
Drainage from
Outdoor Lower
Drain Section
Pan. Do Not Fill
with Mortar
A space must exist between the bottom back edge of the wall
sleeve and the sloping sealed cement mortar base to allow
moisture to drain away from the outdoor section. Do not fill
this space with mortar (Figure 23).
CAUTION
!
Step 2 – Installing Louver

IM 798 AE Self-Contained Unit Ventilator / Page 13 of 60
L
CUnit
UNIT Unit “A” Louver “L”
SIZE IN MM IN MM
024 86 2184 84 2134
030
036 98 2489 96 2438
040
044
048 110 2794 108 2743
054
Figure 25 - Panel Wall Application With Flush Louver
Horiz. Splitters By Others (See CAUTION)
Masonry
Wall
Thickness
18"
(457 mm)
Max.
Top Plan Views – No Recess (Full Projection)
Figure 26 - Masonry Wall Application With Flush Louver
Table 6 - Unit & Louver Dimensions
“A” is unit length without end panels.
Louver
L
1"
28"
(711 mm)
Panel Wall
Thickness
A
Wall Sleeve Flanges
End Panel
L
CUnit
L
CLouver
1"
(No Unit Recess)
The bottom of the louver must be installed flush with the bottom of the unit for proper air inlet/
outlet orientation and to permit water to drain under the louver from the building exterior.
Louver dimensions are ±1⁄16" (1.6 mm) except as noted.
Intakeanddischargemustnotberestricted.Trees,shrubs,etc.,mustbeaminimumof30"(762
mm) away from intake.
Louvermustbeblankedoffairtight(byothers)ifitextendsbeyondtheconfinesofthewallsleeve.
Horizontalsplitters (by others)must be installedwhenever thereis anyspace betweenthe wall
sleeve and the louver. Seal the ends of the wall opening. Locate splitters between outdoor coil
discharge and outdoor coil inlet, and between outdoor coil air inlet and outdoor air inlet. Pitch
the splitters toward the louver for water drainage.
Louversby AAF-HermanNelsonprovide properairflow.Properunitperformancehas notbeen
verified with louvers by others.
Grille must be flush with louver to provide proper air flow.
28"
(711 mm)
A
Wall Sleeve Flanges
End Panel
L
L
CLouver
Louver
1"
1"
SealsSeals
(No Unit Recess)
CAUTION
!
Step 2 – Installing Louver

Page 14 of 60 / IM 798 AE Self-Contained Unit Ventilator
C
Max. of 2" (51 mm) Louver Recess from Face of Brick
Wall Sleeve
Figure 28 - Masonry Wall Application With Recessed Louver
CAUTION
!
Figure 27 - Masonry Wall Application With Flush Louver
B
Top Plan Views – Partial or Full Recess
Horiz. Splitters By Others (See CAUTION page 13)
Masonry
Wall
Thickness
18"
(457 mm)
Max.
28"
(711 mm)
A
End Panel
L
L
CLouver
Louver
1"
1"
Seals
Seals
L
CUnit
(Partial or Full Unit Recess)
Application BC
IN MM IN MM
Full Recess 165⁄8422 113⁄8289
Partial 195⁄8498 83⁄8213
Recess 217⁄8556 61⁄8156
No Recess 28 711 0 0
Table7-RoomProjection/EndPanelDepth
“B” is room projection of unit.
“C” is the amount the unit is recessed into the wall.
(Partial or Full Unit Recess)
C
Wall Sleeve
B
Horiz. Splitters By Others (See CAUTION page 13)
Masonry
Wall
Thickness
18"
(457 mm)
Max.
28"
(711 mm)
A
End Panel
L
L
CLouver
Louver
1"
1"
Seals
Seals
L
CUnit
Step 2 – Installing Louver

IM 798 AE Self-Contained Unit Ventilator / Page 15 of 60
Examples 29 through 37 show various methods of installation.
Select the appropriate method.
The following is a brief description of several popular methods of
installation. Many variations are possible, depending on wall thick-
ness, opening size, method of fastening, etc.
Louvers Without Flanges
Friction Fit Installation
Figure 29. Thisisafrictionfitofthelouverwhere the wall opening
is made just large enough for the louver to be held in
place by the friction between the wall and the louver.
This will require each wall opening be “custom cut” to
the intake size, which can be done only after the intake
is on site for actual measurements. Recommended wall
openings provided in this manual do not apply for this
method of installation.
Appropriate fasteners must be used to prevent removal by
unauthorized personnel.
Friction Fit Using Shims Installation
Figure 30. Incaseswheretheopeningistoolargeandthelouverfits
too loosely, friction fit may be obtained by the use of
shims to help hold the louver in place.
Fastens To Wall Sleeve Installation
Figure 31. It may be desired to mount the louver to the wall sleeve
so as to allow demounting the louver from the building
exterior.
The louver may be fastened to the wall sleeve using appropriate
fasteners on each corner of the wall sleeve where it butts up against
the louver. The louver must be at least as long as the wall sleeve to
be secured to the sleeve in this fashion. No holes are provided in the
louver or in the wall sleeve for this type of mounting; the holes must
be drilled in the field. Mounting hardware must also be provided by
the installer. The wall sleeve must be properly secured to the wall
structure.
INSTALL SO THAT THE EMBOSSMENTS ARE AT THE
BOTTOMOFTHELOUVERANDTHEBIRDSCREENISON
THE UNIT (ROOM) SIDE.
If the wall intake louver extends above, below, or beyond the
endsof thewall sleeve,itmust be blankedoffairtight inthese
areas only (Figure 19).
THE WALL OPENING SHOULD BE OF SUFFICIENT SIZE
TO ALLOW PROPER, YET SNUG, FIT OF THE LOUVER,
AND WILL DEPEND ON THE TYPE OF INSTALLATION
REFER TO APPROVED SUBMITTAL PRINTS FOR
RECOMMENDED WALL OPENING SIZE.
If the louver is to be installed in a masonry wall, there should
alsobe alintel to supportthe wallabove thelouver toprevent
moisture from seeping into the wall. If it is to be installed in a
panelwall, the louvershould beplacedso that itis asflushas
possible with the inside wall.
CAUTION
!

    

Figure 29 – Friction Fit Louver
Sealant, top and sides
Wall Intake Louver
Maximum Recess 2"
Minimum Recess 1/16"
Sealant or gasketing
material also on sides
Wall Sleeve

 

  

Figure 30 – Friction Fit Using Shims
Sealant, top and sides
Wall Intake Louver
Maximum Recess 2"
Minimum Recess 1/16"
Sealant or gasketing
material also on sides
Wall Sleeve
Shims
Shims
Figure 31 – Louver Fastens to Wall Sleeve

    

Sealant, top and sides
Wall Intake Louver
Maximum Recess 2"
Minimum Recess 1/16"
Sealant or gasketing
material also on sides
Wall Sleeve
Fasteners (by others)
Fasteners (by others)
Louver Installation Methods
CAUTION
!
Step 2 – Installing Louver

Page 16 of 60 / IM 798 AE Self-Contained Unit Ventilator
Panel Wall - Angle Bracket Mounting on Exterior
Surface
Figure 34. This shows a typical panel wall installation where the
panel wall thickness is greater than that of the louver.
In this case, it is possible to mount the louver without
flange using angle brackets. The louver could be re-
movable from the exterior of the building.
Onmany panel wall applications, thepanelwallmanu-
facturer may accomplish louver mounting by using
various aluminum extrusions to “build-in” the louver
as a permanent part of the panel wall. All panel wall
applications will most likely utilize a full finish collar,
meaning no wall sleeve recess into the wall itself. (see
CAUTIONS above).
Do not plug the weep holes in the bottom of the louver.
Propertydamageandpoorindoorairqualitywillresultifwater
cannot drain to the outside from the weep holes. Appropriate
fasteners must be used to prevent removal by unauthorized
personnel
Angle Bracket Mounting to Exterior Surface
Figure 32. Thisshowsatypicalapplicationwhereananglebracket
is affixed to the edges of the louver and then the entire
assembly is mounted from the outside by fastening to
the exterior surface using suitable hardware. This fig-
ure shows an application where the wall sleeve is fully
recessed into the wall and butts up against the louver.
However,thesamemethodofinstallationmaybeused
where only partial or no recess is required and a
horizontal air splitter between louver and wall sleeve
must be installed.
Angle Bracket Mounting to Interior Surface
Figure 33. ThisisavariationoftheinstallationshowninFigure32
where the angle brackets are mounted on the inside of
the louver and fastened to the wall from the interior of
the building. This also shows usage of a horizontal air
splitter with a partially recessed wall sleeve. Once the
louver has been installed, run a bead of caulk around
the outside perimeter of the frame to seal it watertight.
Donotusemountinganglesorstripsatthebottomoftheintake
louver that run across the louver's entire length and plug the
weep hole locations. Property damage and poor indoor air
quality will result if water cannot drain to the outside from the
weep holes.
Appropriate fasteners must be used to prevent removal by
unauthorized personnel.
CAUTION
!
Figure32–AngleBracketonLouverMountstoExteriorSurface

    

Wall Intake Louver
Maximum Recess 2"
Minimum Recess 1/16"
Sealant or gasketing
material also on sides
Recessed Wall Sleeve
Vertical Angle Bracket
(See CAUTION)
CAUTION
!
Angle Bracket
(by others)
Sealant, top and sides
Figure33–AngleBracketsonLouverMountstoInteriorSurface

    

Sealant, top and sides
Wall Intake Louver
Maximum Recess 2"
Minimum Recess 1/16"
Sealant or gasketing
material also on sides
Wall Sleeve
Angle Brackets
(by others)
Angle Brackets
(by others)
Finish Collar
Figure34–PanelWallUsingAngleBracketonExteriorSurface
Angle Bracket
(by others)
Sealant, top and sides
Wall Intake Louver
Wall Sleeve
Finish Collar
Sealant or gasketing
material also on sides
Louver without Collar
Maximum Recess of 2"
Step 2 – Installing Louver

IM 798 AE Self-Contained Unit Ventilator / Page 17 of 60
Panel Wall Installation
Figure 37. This installation is typical when the thickness of the
panel wall very closely approximates the thickness of
the louver itself. Here only mounting straps may be
required,runningtheentiretoplengthandverticalwidth
ofthelouver.Thisinstallationisperhapstheeasiest.The
louver could be removable from the exterior of the
building. (see CAUTION above).
Louvers With Flange
Masonry Installation
Figure 36. Ifthelouverissuppliedwithaflange,followthesesteps.
1. Abead ofcaulkisapplied totheinsideof thetopandside flange
that come in contact with the building facade.
2. The louver with flange is placed into the opening and pushed
tight against the building.
3. Fasten it to the exterior of the building using appropriate
fasteners for the installation.
4. Sealthetopandtwosidesfromtheinsidewithwaterproofcaulk
tomake it weathertight.Do notseal thebottom flange. Todo so
may trap water behind the flange (see CAUTION above).
Figure 37 – Panel Wall Using Collar on Exterior Surface
Collar
Wall Intake Louver
Wall Sleeve
Finish Collar
Sealant or gasketing
material also on sides
Figure 36 – Masonry Wall Using Collar on Exterior Surface

 

  

Sealant or gasketing
material also on sides
Wall Sleeve
Wall Intake Louver
Maximum Recess 2"
Minimum Recess 1/16"
Flange is caulked on
inside top and two
sides to seal to building
Figure35–PanelWallUsingMoistureResistantMaterial/Sheet
Metal Framing
Wall Intake Louver
Wall Sleeve
Finish Collar
Sealant or gasketing
material also on sides
Sealant, top and sides
Maximum Recess of 2"
Panel Wall Using Moisture Resistant Material/
Sheet Metal Framing
Figure 35. If desired, the louver may be “framed” in moisture
resistant material or a moisture resistant material/
sheet metal combination and then inserted into the
panel wall for final mounting. This installation is
desirablewhenthewallopeningisconsiderablylarger
than that required by the louver. Provide an air and
watertight seal and avoid blocking drainage at the
bottom of the louver. After installation, be sure that
there are no obstructions (mortar, nails, etc.) on the
inside of the Louver where it meets the wall sleeve.
Donotusemountinganglesorstripsatthebottomoftheintake
louver that run across the louver's entire length. This will plug
theweep holelocationsand propertydamageand poorindoor
airqualitywillresultifwatercannotdraintotheoutsidefromthe
weep holes.
Appropriate fasteners must be used to prevent removal by
unauthorized personnel.
CAUTION
!
Step 2 – Installing Louver

Page 18 of 60 / IM 798 AE Self-Contained Unit Ventilator
Outdoor Section Discharge Air
Outdoor Section Supply Air
Outside Air Section
Wall Sleeve
Junction Box
Outdoor View
Top View – Outdoor
Unit Overall Length Sleeve Recess Length
Size "L" (mm) "LR" (mm)
024 86 (2184) 84 (2145)
030
036 98 (2489) 96 (2450)
040
044
048 110 (2794) 108 (2755)
054
Step 3 – Installing Wall Sleeve
Wall Sleeve Details
Figure 38. Wall Sleeve
Note: Wall sleeve (electric junction box is strapped to the wall sleeve
during shipping and is field assembled.
Figure 39 - Wall Sleeve Dimensions for Recessed Applications
CAUTION
!
The opening between the wall sleeve and the louver must be
completely enclosed by the installer to prevent air and water
leaks into the building
Table 8 - Wall Sleeve Dimensions
Overall Length "L"
Sleeve Recessed
Length "LR"
28"
(711mm)
7"
(178mm)
1"
(25mm)
11/4"
(32mm)
111/2" (292mm)
81/8" (206mm)
41/2" (114mm)
1/2" (13mm)
1"
(25mm)
1"
(25mm)
1" (25mm)
113/8" (289mm)
1" (25mm)
5/8"
(16mm)
NOTE: Please refer to “Transportation Damage” on page 4 for
information on receiving, inspection, and filing claims for damage
or loss with the carrier, and handling items supplied by McQuay.

IM 798 AE Self-Contained Unit Ventilator / Page 19 of 60
Outdoor Section Discharge Air
Outdoor Section Supply Air
Outside Air Section
Wall Sleeve Threaded Studs
for Fastening to Unit Chassis "D" Seal
113/8"
(289mm)
28"
(711mm)
Textured Charcoal Bronze
Finish Top (Not Required for
Fully Recessed Sleeve)
“LR”
Amount Wall Sleeve
Recessed Into Wall
Cross Channel 1/4" Holes for Fastening to Floor (fasteners by others)
7 fasteners - AE 024, 030
8 fasteners - AE 036, 040
9 fasteners - AE 044, 048, 054
81/8" (206mm)
111/2" (292mm)
4
1
/
2
" (114mm)
1" (25mm) 1" (25mm)
Stub-up area (5"x 5.5") When Power Wiring is Brought up Through Floor
Side Toward Louver
Air flow Direction
Figure 40 - Wall Sleeve Details (Recessed Type)
Outdoor
Indoor
The AAF-HermanNelson wall sleeve and louver design is based
on a "wet sleeve" concept. In brief, this means the design accommo-
dates the penetration of some moisture into the rear outdoor section
of the AE unit with provisions for containment and disposal of this
moisture to the outdoors (see details in Figure 6). Therefore, proper
Louver, Splitter and Wall Sleeve installation is critical.
ThewallsleevemustbeinstalledbeforetheAEself-containedunit
ventilator can be placed. The recessed portion of the wall sleeve
measures approximately 84", 96" or 108"wide by 28" high and may
be recessed into the wall up to 113⁄8" in depth. Consult approved
AAF®-HermanNelson®submittal drawings for the job to determine
the proper amount of recess, if any, and recommended wall opening
size.
The AE unit chassis attaches to the wall sleeve threaded studs
using 4-nuts and washers (Figure 40).
Recommended Sleeve Recess
Unit Size Rough-in Wall Opening Length
Length Height “LR”
024 841⁄2"28
1⁄2"84"
030 (2146mm) (724mm) (2184mm)
036 961⁄2"28
1⁄2"96"
040 (2451mm) (724mm) (2489mm)
044
048 1081⁄2"28
1⁄2"108"
054 (2756mm) (724mm) (2794mm)
Table 9 - Recommended Rough-in Wall Opening
Pre Wall Sleeve Installation Checklist
Wall sleeve section of manual read in its entirety with
understanding of the installation procedures
Louver installed and sealed with bird screen toward wall
sleeve with 9" exhaust opening at top
Structural columns exist to attach wall sleeve
Sides of rough opening smooth and sealed
Electrical and control wiring stubbed up
 Top, and bottom of wall envelope smooth and sealed and
90
o
to interior mounting wall
Condensate disposal drain for heat pump installed in
building and located below floor level
Splitters installed and sealed for mate-up to wall sleeve
 Metal flashing in place or sealed sloped mortar bed for
drainage from wall sleeve "D" seal channel to bottom of
louver
Correct wall sleeve confirmed
Wall sleeve assembled
Unit wall sleeve must be anchored to an internal wall column or
other suitable support.
CAUTION
!
NOTICE
Wall and floor must be at 90oto one another. If not, the floor
must be leveled (90o) to wall.
Step 3 – Installing Wall Sleeve

Page 20 of 60 / IM 798 AE Self-Contained Unit Ventilator
Typical Wall Sleeve Applications
The following is a brief description of three typical methods of installation. Many variations are possible, depending on wall
thickness.
Figure 41. Thick Masonry Wall With Full Recess Wall Sleeve
Top View
Wall Sleeve
Wall Sleeve
Wall Column for
Anchoring Wall Sleeve Finished Wall Opening
Dimension “LR” (Table 8)
Flanges for securing
to wall and floor
(supplied)
Wall Sleeve Junction Box
Wall Sleeve Junction Box
Figure 42. Masonry Wall With Partial Recess Wall Sleeve
Step 3 – Installing Wall Sleeve
Holes for Securing to Floor
Masonry Wall With Partial Recess
This example shows the wall sleeve partially recessed into a Masonry (Thick) Wall.
Top View
Finished Wall Opening
Dimension “LR” (Table 8)
Wall Sleeve
Wall Column for
Anchoring Wall Sleeve
Wall Sleeve Junction Box
Holes for Securing to Floor
Wall Column for
Anchoring Wall Sleeve
Wall Column for
Anchoring Wall Sleeve
Finish Collar
Panel Wall With No Recess (Full Projection)
This is an example of a Panel (Thin) Wall construction with No Recess (full projection). The wall sleeve is secured flush to the wall and floor
with the addition of flanges. The wall opening is the same as the wall sleeve recessed length (dimension “LR”, table 8).
Thick Masonry Wall With Full Recess
This example shows the wall sleeve fully recessed into a Masonry (Thick) Wall.
Top View
Finished Wall Opening
Dimension “LR” (Table 8)
Wall Column for
Anchoring Wall Sleeve
Figure 43. Panel (Thin) Wall With No Recess (Full Projection) Wall Sleeve
Holes for Securing to Floor