Daikin AVS User manual

Daikin Classroom Unit Ventilators
Digital Ready, MicroTechII™ (“F” Vintage)
Field Controls by Others
Vertical Floor ModelsAVS,AVV,AVB andAVR
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.
C
Installation Manual IM 817-4
Group: Unit Ventilator
Part Number: 106506225
Date: October 2013
IMPORTANT!
©2013 Daikin Applied • www.DaikinAP.com • [phone]

IM 817-4 Page 3 of 60
Table of Contents
Nomenclature
Model AV Ceiling Unit Ventilator Data Plate Details........................4
Data Plate Location.........................................................................5
Receiving & Handling
Visible Loss or Damage...................................................................5
Concealed Loss or Damage............................................................5
Storage............................................................................................5
Lifting Unit .......................................................................................5
Pre-Installation Information
Safety...........................................................................................5-6
Pre-Installation Considerations
Properly Identify Unit Ventilator(s) ...................................................6
Uncrate and Inspect the Unit Ventilator(s).......................................6
Wall Openings, Louvers, and VentiMatic Shutter............................6
VentiMatic Shutter Assembly...........................................................6
Table 1 - Approximate Shipping Weights, Physical Data.................6
Installing Louvers.............................................................7-11
Louver Details .................................................................................7
Louver Installations with Typical Unit Congurations
Unit Conguration - Type AL............................................................8
Unit Conguration - Type AN ...........................................................9
Unit Conguration - Type AK ...........................................................9
Unit Conguration - Type AP ...........................................................9
Typical Installation Methods .....................................................10-11
Installing the VentiMatic Shutter...................................11-12
Before Setting the Unit in Place
Removing Unit from Skid...............................................................12
Mounting Holes, Piping and Electrical Knockout
Locations & Dimensions................................................................12
Drain Pan Adjustment
Procedure......................................................................................13
Typical Floor Unit Installation ............................................14
Typical VentiMatic Shutter & Draftstop Installation .........14
Unit Ventilator Installation..................................................15
Making Piping Connections
For All Systems .............................................................................15
Water Coil Connections.................................................................16
2-pipe Chilled Water/Hot Water Systems ......................................16
After Brazing..................................................................................16
For Water Systems........................................................................16
Coil Headers, Locations
Heating Only..................................................................................17
Cooling Only..................................................................................17
Chilled Water & Heating Coils.......................................................17
Direct Expansion Coils & Heating Coils ........................................19
Reheat...........................................................................................19
Typical Valve Packages
Face and Bypass - MicroTech II
2-way and 3-way End-of-Cycle Valves ..........................................20
2-way and 3-way Modulating Valves – MicroTech II......................21
Modulating Valve Specications – MicroTech II.............................22
Steam Modulating Valve Selection – MicroTech II.........................23
Hot Water and Chilled Water Valve Selection – MicroTech II ........23
Typical Piping Arrangements
Heating – Hot Water End of Cycle Valve Piping............................24
Cooling – Chilled Water End of Cycle Valve Piping.......................24
Typical Water Coil Piping–EOC Valve Piping ................................25
Steam–Typical Modulating Valve Piping........................................25
For Steam Systems
The optional factory-supplied Daikin MicroTech II Modulating
Control Valve.............................................................................26
Typical Steam Coil Piping..............................................................26
Heating–Modulating Valve Piping
Hot Water (or 2-pipe CW/HW) Modulating Valve Piping ...............27
2-way Modulating, Normally Open, Hot Water or 2-pipe CW/HW
Valve Piping (typical) .................................................................27
3-way Modulating, Normally Open, Hot Water or 2-pipe CW/HW
Valve Piping (typical) .................................................................27
Cooling–Chilled Water Modulating Valve Piping
2-way Modulating, Normally Closed, Chilled Water Valve Piping
(typical)......................................................................................28
3-way Modulating, Normally Closed, Chilled Water Valve Piping
(typical)......................................................................................28
Condensate Piping..............................................................29
Direct Expansion (DX) R-22 Piping ...............................................29
Unit Ventilator Split Systems Guidelines..........................30
Checking System Charge..............................................................31
Determining Subcooling................................................................31
Determining System Superheat ....................................................32
Superheat Adjustment...................................................................32
Making Control Connections
MicroTech II Unit Mounted DDC Control Components–Models AVS,
AVV, and AVR.......................................................................33-35
Economizer Control Capabilities...................................................35
Economizer for Reheat..................................................................35
Local User Interface......................................................................35
Operating Mode States (4) ............................................................35
Fan States (4)................................................................................35
Occupancy Modes (4) ...................................................................35
MicroTech II Wiring Diagram–Typical ...........................................36
MicroTech II Unit Electrical Connections......................................37
Procedure......................................................................................37
MicroTech II Remote Wall Mounted Sensor..................................38
Field Wiring Remote Mounted Temperature Sensor .....................39
Installing the Remote Mounted Temperature Sensor...............39-41
Digital Ready™–Face & Bypass Control Components
Model AVS.....................................................................................42
Digital Ready Wiring Diagram–Typical ..........................................43
Digital Ready Unit Mounted Temperature Sensor
Specications ................................................................................44
Digital Ready–Damper Actuator Specications
Outdoor Air/Return Air Damper Actuator .......................................44
Face & Bypass Damper Actuator..................................................44
Digital Ready Unit Electrical Connections
Procedure......................................................................................45
Controls by Others Components...................................................46
Controls by Others Wiring Diagram–Typical .................................47
Controls by Others–Electrical Connections
Procedure......................................................................................48
Electric Heat Wiring Diagram–Typical ...........................................49
Electric Heating–Standard Motor Capacities, Amps, Wire Sizing,
and Over Current Protection .....................................................50
Electric Heating–High Static Applications Capacities, Amps, Wire
Sizing, and Over Current Protection..........................................51
Cabinets
Draftstop™ System/Window Down-draft Installation................52-54
Installing Unit Ventilator End Panels ........................................54-55
Prepare Unit Ventilator for Start-up...................................55
Oiling the Fan Shaft Bearing.........................................................55
Filter(s) .................................................................................56
Complete Check, Test and Start Procedure......................56
Installer’s Responsibility
Protect your investment - read carefully.......................................56

Page 4 of 60 IM 817-4
BE = Basic Metasys N2 Open w/o TC w/CO2
BF = Basic Stand-Alone w/ TC w/CO2
BG = Basic Stand-Alone Master w/ TC w/CO2
E1 = Expanded Stand-Alone w/o TC
E2 = Expanded Stand-Alone Master w/o TC
E3 = Expanded Stand-Alone Servant w/o TC
E4 = Expanded BACnet MS/TP w/o TC
E5 = Expanded LonMark SCC w/o TC
E6 = Expanded Metasys N2 Open w/o TC
E7 = Expanded Stand-Alone w/ TC
E8 = Expanded Stand-Alone Master w/ TC
E9 = Expanded Stand-Alone w/o TC w/CO2
EA = Expanded Stand-Alone Master w/o TC w/CO2
EB = Expanded Stand-Alone Servant w/o TC w/CO2
EC = Expanded BACnet MS/TP w/o TC w/CO2
ED = Expanded LonMark SCC w/o TC w/CO2
EE = Expanded Metasys N2 Open w/o TC w/CO2
EF = Expanded Stand-Alone w/ TC w/CO2
EG = Expanded Stand-Alone Master w/ TC w/CO2
L1 = Leading Stand-Alone w/o TC
L2 = Leading Stand-Alone Master w/o TC
L3 = Leading Stand-Alone Servant w/o TC
L4 = Leading BACnet MS/TP w/o TC
L5 = Leading LonMark SCC w/o TC
L6 = Leading Metasys N2 Open w/o TC
L7 = Leading Stand-Alone w/ TC
L8 = Leading Stand-Alone Master w/ TC
L9 = Leading Stand-Alone w/o TC w/CO2
LA = Leading Stand-Alone Master w/o TC w/CO2
LB = Leading Stand-Alone Servant w/o TC w/CO2
LC = Leading BACnet MS/TP w/o TC w/CO2
LD = Leading LonMark SCC w/o TC w/CO2
LE = Leading Metasys N2 Open w/o TC w/CO2
LF = Leading Stand-Alone w/ TC w/CO2
LG = Leading Stand-Alone Master w/ TC w/CO2
10. Discharge
AB = 21-7/8" Unit, Top Bar Grille Discharge, FullAdapter Back w Closed Pipe
Tunnel w Solid Back
AK = 21-7/8" Unit, Top Bar Grille Discharge, PartialAdapter Back w Open Pipe
Tunnel
AL = 16-5/8" Unit, Top Bar Grille Discharge
AM = 21-7/8" Unit, Top Bar Grille Discharge, 2" Stepdown FullAdapter Back w
Closed Pipe Tunnel
AN = 21-7/8" Unit, Top Bar Grille Discharge, Full Adapter Back w Closed Pipe
Tunnel
AP = 21-7/8" Unit, Top Bar Grille Discharge, PartialAdapter Back w Closed Pipe
Tunnel, Top Duct Intake
11. Return Air (RA) / Outside Air (OA)
22 = RA Bottom Front / OA Rear Duct Collar
24 = 100% RA Bottom Front / No OA Opening / No OA/RA Dampers
30 = RA Bottom Front w Draft Stop / OA Rear Duct Collar
12. Power Connection
G = Box w Switch
13. Color
B = Putty Beige
G = Soft Gray
I = Antique Ivory
W = Off White
14. SKU
B = Standard Delivery
C = Extended Delivery
15. Product Style
1
Field-Installed Accessories may accompany Unit Ventilator(s), or may be shipped
separately. These may include: Adapter Backs; Aluminum Louvers; Aluminum Grilles;
Auxiliary Drain Pans; Controls / Sensors; End Panels; Spare Filters; MicroTech II
Controls, Remote Wall Sensors (temperature); End of Cycle DDC Valve; Modulating
DDC Valves; Subbases. See instructions shipped with accessories and install according
to these and the plans.
1. Product Category
U = Unit Ventilator
2. Product Identier*
AVS = Floor, Face and Bypass Damper, Heat/Cool, Heat Only, Cool Only
AVV = Floor, Valve Control, Hydronic or Electric Heat/Cool, Heat Only, Cool Only
AVR = Floor, Valve Control, Hydronic or Electric Reheat/Dehumid
AVB = Floor, Face and Bypass Damper, Hydronic Reheat
* End panels not included; Ordered as accessory, shipped separately boxed
3. Design Series
5 = E Design
6 = F Design
4. Nominal Capacity, cubic feet per minute (cfm)
S07 = 750
S10 = 1000
S13 = 1250
S15 = 1500
5. Voltage, volts, phase, Hertz (v-Hz-ph)
A = 115-60-1
C = 208-60-1
G = 230-60-1
J = 265-60-1
D = 208-60-3
H = 230-60-3
K = 460-60-3
6. Cooling Options
U = 2-row Chilled Water/Hot Water, 2-pipe
D = 3-row Chilled Water/Hot Water, 2-pipe
E = 4-row Chilled Water/Hot Water, 2-pipe
F = 5-row Chilled Water/Hot Water 2-pipe
G = Direct Expansion (DX)
S = 3-row Chilled Water
V = 2-row Chilled Water
W = 4-row Chilled Water
Y = 5-row Chilled Water
7. Heating Options
00 = None
12 = Low Electric Heat, 3-element
13 = High Electric Heat, 6-element
65 = 1-row, Hot Water
66 = 2-row, Hot Water
67 = 3-row, Hot Water
68 = Low Capacity Steam
69 = High Capacity Steam
78 = Low Capacity Steam, Opposite End Drain
79 = High Capacity Steam, Opposite End Drain
8. Hand Orientation [Right (RH) Left (LH)]
A = LH Both Coils (only w Controls by Others)
B = RH Both Coils (only w Controls by Others)
D = RH Electric Heating, One Coil
E = LH Heating, RH Cooling
F = RH Heating, LH Cooling
G = RH Electric Heating, LH Cooling
R = LH Single Coil
S = RH Single Coil
9. Controls (TC = Time Clock, CO2= CO2Sensor)
23 = Field Mounted Controls by Others
17 = Digital Ready/with Damper Actuators, (3)@ 10k NTC Sensors, 3 Terminal
Strips, 75 VA 24 Volt T’fmr, w/o UV Controller
B1 = Basic Stand-Alone w/o TC
B2 = Basic Stand-Alone Master w/o TC
B3 = Basic Stand-Alone Servant w/o TC
B4 = Basic BACnet MS/TP w/o TC
B5 = Basic LonMark SCC w/o TC
B6 = Basic Metasys N2 Open w/o TC
B7 = Basic Stand-Alone w/ TC
B8 = Basic Stand-Alone Master w/ TC
B9 = Basic Stand-Alone w/o TC w/CO2
BA = Basic Stand-Alone Master w/o TC w/CO2
BB = Basic Stand-Alone Servant w/o TC w/CO2
BC = Basic BACnet MS/TP w/o TC w/CO2
BD = Basic LonMark SCC w/o TC w/CO2
Field 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Model U AVS 6 S07 A S 65 E 23 AL 22 G B C 1
Table 1 - Unit Ventilator (Floor Type) Data Plate - Specic Information

IM 817-4 Page 5 of 60
Pre-Installation Information
■  Beforebeginninginstallation,pleasereadthispublicationinits
entirety.
■  Directionsgiveninthisbulletinforrightandleftsidesassumea
position facing the indoor side of the unit ventilator.
■  Beforebeginninginstallation,ifprovided,removetheprotective
plasticlmcoveringtheunitpaintedpanels.
Plastic packaging is a suffocation hazard, dispose of properly. Keep
away from children.
Safety
Follow all safety codes. Wear safety glasses and work gloves.
Useaquenchingclothforbrazingoperations.Haveare
extinguisher available. Follow all warnings and cautions in these
instructions and attached to the unit. Consult applicable local
building codes and National Electrical Codes (NEC) for special
requirements.
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identies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identiesunsafepracticesthatcan
result in personal injury or product and property damage.
Improper installation, adjustment, service, maintenance, or use
cancauseexplosion,re,electricalshock,orotherconditions
which may result in personal injury or property damage. This
product must be installed only by personnel with the training,
experience, skills, and applicable licensing that makes him/her “a
qualiedprofessionalHVACRinstaller.”
Make sure lifting equipment can handle the weight of the unit
safely. Personal injury may result if improper lifting and moving
methods are used. (See table 2, page 3 for approximate shipping
weights)
Use 72" length forklift tines, short tines will damage the unit
bottom. Improper handling can damage internal components.
Do not stand the unit on end or stack (see gure 2 & 3)
ModelAV Floor Unit Ventilator Installation
Models AVV, AVR, AVS, AVB, and AVR
Receiving & Handling
This product was carefully packed and thoroughly inspected
before leaving the factory. Responsibility for its safe delivery was
assumed by the carrier upon acceptance of the shipment. Claims
for loss or damage sustained in transit must therefore be made
upon the carrier, as follows:
Visible Loss or Damage
Any external evidence of loss or damage must be noted on the
freight bill or carrier’s receipt, and signed by the carrier’s agent.
Failure to adequately describe such external evidence of loss or
damage may result in the carrier’s refusing to honor a damage
claim.Theformrequiredtolesuchaclaimwillbesuppliedbythe
carrier.
Concealed Loss or Damage
Concealed loss or damage means loss or damage which does not
become apparent until the product has been unpacked. The
contents may be damaged in transit due to rough handling even
though the carton may not show external damages. When the
damage is discovered upon unpacking, make a written request for
inspectionbythecarrier’sagentwithinfteen(15)daysofthe
delivery date. File a claim with the carrier since such damage is the
carrier’s responsibility.
Storage
Ifequipmentisstoredforanylengthoftimebeforeinstallation,itshould
remaininitsshippingpackaginginaclean,dry,climatecontrolledarea.
Lifting Unit
A forklift or other lifting device is needed to install this product.
Figure 1 - Data Plate Location
Figure 2 - Stack Units Maximum 2 High as Shown
2 high
Correct Incorrect
4'
6'
Figure 3 – Forklift Lifting Requirements
Lifting Points
WARNING
CAUTION
WARNING

Page 6 of 60 IM 817-4
Models Shipping Weight Approx. Shipping Filter Size Unit Length* Number
AVS, AVV, lbs. (kg) Weight lbs. (kg) in. (mm) in. (mm) of Fans
AVR, AVB 165/8"Units 217/8"Units
S07 350 (168) 370 (163) 10 x 36.5 x 1 62 (1575) 2
(254 x 927 x 25)
S10 425 (193) 445 (202) 10 x 48.5 x 1 74 (1880) 3
(254 x 1232 x 25)
S13 495 (225) 525 (238) 10 x 60.5 x 1 86 (2174) 4
(254 x 1551 x 25)
S15 570 (259) 600 (272) Two: 10 x 36.5 x 1 98 (2489) 4
(254 x 927 x 25)
Disconnect all electrical power before servicing unit.
Electrical shock will cause severe injury or death.
Hazardous Voltage!
Use copper conductors only. Unit terminals are not designed to
accept other types of conductors. Failure to do so may cause
damage to the equipment.
Personal injury hazard. Wear protective gloves to avoid possible
cuts and abrasions from exposed edges. Avoid contact with sharp
edges.
Cleaning agents may cause serious damage to internal
components, such as aluminum coils and electronic controls,
etc. Do not operate unit ventilator while building maintenance
cleaning agents are in use.
Pre-Installation Considerations
Properly Identify Unit Ventilator(s)
To be sure the correct unit ventilator(s) is/are installed in the
correct location(s), the installer must check the packing list and unit
identication/taggingnumber(s)againsttheplans. Further,theunitdata
plate,(seegure1)locatedonthelowerrightendoftheunitventilator,
containsspecicinformationofstandardcomponentsaslistedinTable1.
Figure 4 - Shipping Envelope Contents - Located in right end
compartment of unit.
Uncrate and Inspect the Unit Ventilator(s)
Carefullyremovethepackaging,remainingalerttoanysignsofshipping
damage.Becarefulnottodiscardcomponentsthatmaybeincludedwith
the packaging. (You may want to retain some or all of the packaging
to provide jobsite unit location information and temporary protection
for the unit ventilator after installation.) Be sure to dispose of plastic
packaging and protective cardboard properly, in accordance with local
recycling rules and guidelines.
Ifunitisdamaged,leaclaimwiththecarrier.NotifythelocalDaikin
Unit Ventilator representative immediately.
Wall Openings, Louvers, and VentiMatic™
Shutter
Prior to unit installation, be sure that the exterior wall openings and
louvers, as applicable, are ready and in accordance with the job plans.
Vertical Floor Models AVS, AVV, AVB, AVR are typically installed
in front of a wall opening containing a properly sized louver that is
designedtolet inoutsideair whilepreventingwater (such asrain) from
gettingpastthelouverandintotheunititself.Aweather-tightsealkeeps
unwantedairandmoisturefromenteringtheoccupiedspace.SeeFigures
6 through 21, and table 1 for various louver details.
VentiMatic™Shutter Assembly
Inmanyinstallations,aDaikinVentiMaticShutterAssemblyisspecied.
Seegure5.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airow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
shutterclosed.Thispreventsroomairexhaustingfromtheroomthrough
the VentiMatic shutter.
Note: Birdscreen and louver are shipped in one (1) piece.
Figure 5 – VentiMatic Shutter Assembly
Outside
Louver
VentiMatic Shutter
Roomside
Relief Air
Table 2 - Approximate Shipping Weights, Physical Data
* Measurement is without end panels. All unit ventilators are 30" (762 mm) high.
DANGER
WARNING
CAUTION
WARNING

IM 817-4 Page 7 of 60
Figure 6 – Horizontal and Vertical Blade Louvers, Without Flange, (see Caution below for louver blade orientation and drainage)
Figure 7 – Horizontal and Vertical Blade Louvers, Without Flanges With Grille or With Flange Without Grille
Louver drain lip
Grille/Louver with weep hole
Vertical Blade Louver
Horizontal Blade Louver
Flange
Flange
Outside Air
Outside Air
Outside Air
Bird Screen On Side Toward Unit
Vertical Louver with Flange, without Grille
Horizontal Louver without
Flange, with Grille
Locate Drain Lip at bottom of vertical louver to allow proper
drainage. For horizontal louvers, the louver blades should face
down for proper drainage. Bird screen should always be on
side toward unit.
Bottom
Figure 8 – Rear of Horizontal Blade Louver with Birdscreens and
Flange.
Installing Louvers
Louver Details
CAUTION

Page 8 of 60 IM 817-4
Figure 10 -165⁄8" (422mm) Deep Unit with Open Pipe Tunnel & High
Louver Application with Chased Wall
Louver
Floor Line
Piping
Louver
Not Less
Than 3" (76mm)
Not More
Than 21" (533mm)
Sealed Cement
Mortar;
Pitch Away
From Unit
Provide Drainage
Piping
Floor Line
Figure 9 - The 165/8” (422mm) Deep Unit with Open Pipe Tunnel and
Standard Louver Location
Louver Installation With Typical Unit Congurations
Unit Conguration Type AL
1"
(25mm)
Important: Gasket sealing
surface is required.
Important: Gasket sealing
surface is required.
Lintel
(By Others)
Figure 11 - Above Floor Level Outdoor Air Intake Using Arrangement
AV or AL With Accessory Closed Pipe Tunnel
Piping
Floor Line
Lintel (By Others)
Intake Louver
Not Less Than 3"
Not More
Than 28"
Insulated Closure
Plate Accessory
Provide
Drainage Important: Gasket sealing
surface is required.
Figure 12 - Floor Level Outdoor Air Intake With Window Below Unit
Top Using Arrangement AL And 9˝ “Finished” (Painted) Accessory
(Uninsulated) Closed Pipe Tunnel
Unit Conguration Type AL
Lintel (By Others)
Intake Louver
Important: Gasket sealing
surface is required.
Sash Piping
Painted Insulated Closure Plate Accessory
Floor Line
Accumulatedmoisturecancausepropertydamageifnotproperly
drained. Installing contractor must provide such drainage.
Sealed Cement
Mortar;
Pitch Away
From Unit
Lintel
(By Others)
1"
(25mm)
Sealed Cement
Mortar;
Pitch Away
From Unit
Sealed Cement
Mortar;
Pitch Away
From Unit
1"
(25mm)
1"
(25mm)
CAUTION

IM 817-4 Page 9 of 60
Figure 15 – The 217/8” (556mm) Deep Full Adapter Back Unit with
Closed Pipe Tunnel, Ducted with Top Intake
Figure 16 – 217/8" (556mm) Deep Partial Adapter Back Unit with Open
Pipe Tunnel
Intake Louver
Not More
Than 12"
Unit Conguration Type AP Unit Conguration Type AK
Figure 13 - 217⁄8" (556mm) Deep Full Adapter Back Unit With
Standard Louver Application Figure 14 - 217⁄8" (556mm) Deep Full Adapter Back Unit with High
Louver Application
Not More
Than 28"(711mm)
Unit Conguration Type AN
Louver
Piping
Important: Gasket sealing
surface is required.
Lintel
(By Others)
Piping
Floor Line
Sealed Cement
Mortar;
Pitch Away From Unit
Important: Gasket sealing
surface is required.
Louver
Lintel (By Others)
Piping
Piping
Important: Gasket sealing surface is required.
Piping
Piping
Important: Gasket sealing
surface is required.
Louver Installation With Typical Unit Congurations
Lintel
(By Others)
Gasket Seal
Intake Louver
Piping
Piping
Window Sash
“Goose Neck”
Insulated Duct (By Others)
Duct Collar (By AAF)
Note:
Arrangement AB with full metal back panel, similar to
conguration type AN. (Outside air opening to be cut
and sealed by others.)
Floor Line
Floor Line
Floor Line
1"
(25mm)
1"
(25mm)
Sealed Cement
Mortar;
Pitch Away
From Unit
Sealed Cement
Mortar;
Pitch Away
From Unit

Page 10 of 60 IM 817-4
Installing Louvers
Typical Installation Methods
Ifthefreshairopeninghasnotyetbeenmade,seegures9through16
fortherecommendedlocationsandthejob-specic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
specications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
inltration.Besurethewallissmooth,square,andprovidesasuitable
mating surface.
Beforesettingthelouver,constructasloping,sealedcementmortarbase
todrainunwantedmoisturetotheoutside,(seegure17).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ushwiththeinteriorwall.
Ifitisnotpossibletoconstructaslopingmortarbase,theneld-supplied
ashingisrequired.Seegure18.Theashingshouldterminateush
withtheexteriorofthebuilding.Placeabeadofcaulkundertheashing
to prevent moisture from wicking back to the unit. Do not caulk the
jointbetweenthelouverandtheashing.Thisjointisdesignedtolet
unwanted moisture escape.
Personal injury hazard. Wear protective gloves to avoid possible
cuts and abrasions from exposed edges. Avoid contact with sharp
edges.
Seegures6through19.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gures20and21.
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anges,(seegure20)placeanadditional
beadofcaulkontheinsideofthetopandsideangesthatcomein
contact with the building facade. Do not caulk the bottom ange.
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ange.
(Seegure20)
Ifthelouverissuppliedwithnoanges,(seegure21)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specied
in the plans, secure the louver in the wall using mechanical fasteners
(suppliedbyothers)appropriatetotheinstallation.(Seegure19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owofunwantedmoisturetotheoutside
(seegure21)
Seegure18.Ifashingwasusedinsteadoftheslopingmortarbase,
caulktheashingwhereitmeetstheinsideoftheopeningbetweenthe
louver and the unit. This helps prevent moisture from getting under the
ashingandintotheroom.
Louver
No
Caulk
Unit Gasket
Wall Unit
1" (25mm)
Floor
Caulk
(By
Others)
Flashing
(By
Others)
Figure 18 - Typical Louver Installation with Flashing
Unit Gasket
Sealed Cement
Mortar;
Pitch Away
From Unit
Floor
Wall
Unit
Louver
No
Caulk 1" (25mm)
Figure 17 - Typical Louver Installation with Sloping Sealed Cement
Mortar Base
Table 3 - Recommended Wall Openings For Wall Louvers
Recommended Maximum Number of VentiMatic
Wall Openings VentiMatic Shutters Shutter(s)
B C For Wall Louvers Which Can Be Mounted Air Capacity
On Standard Louver Maximum
Length Height 24" Shutter 36" Shutter cfm L/s
24" 27" 245⁄8"107⁄8"
(610) (659) (613) (267) 1 0 500 236
36" 39" 365⁄8" 107⁄8"
(914) (991) (918) (267) 0 1 750 354
48" 51" 485⁄8" 107⁄8"
(1219) (1295) (1222) (267) 2 0 1000 472
60" 63" 605⁄8" 107⁄8"
(1524) (1600) (1527) (267) 1 1 1250 590
72" 75" 725⁄8" 197⁄8"
(1829) (1905) (1832) (495) 0 2 1500 708
CAUTION

IM 817-4 Page 11 of 60
Notes:
1. Horizontal blade wall louver shown. Vertical blade wall louver also
available with Ventimatic shutter.
2. Optional exterior grille matches unit ventilator wall louver in material
and design. Mounted on wall louvers.
3. Optional steel interior wall grille should be used to conceal the interior
wall opening whenever the Ventimatic shutter is not located behind
shelf cabinets or DraftStop enclosure. Hardware to mount the interior
wall grille is not included.
Installing the VentiMatic ShutterAssembly
The VentiMatic Shutter Assembly is mounted on an installed wall
louver. For larger units with 100% ventilation air dampers, two
VentiMatic Shutters may be mounted side by side on the same louver.
Seegure24.
The size and appearance of the wall louvers with or without optional
grilles used with the unit ventilator, and the VentiMatic Shutter, are
identical.
When installing VentiMatic Shutter(s) on the wall louver, make sure
all moving parts are free to operate unobstructed and placed level
and plumb for proper operation. If optional steel interior wall grille is
furnished, install as shown in Figure 22.
Figure 19 - Suggested method for fastening louver (without ange)
inside wall opening .
Figure 22 - Louver , VentiMatic Shutter, Interior Wall Grille Details,
Dimensions
As Directed
By Architect
3⁄4" (19mm) Approx.
7"
(178mm)
Cement Mortar
Steel Interior Wall Grille
(Optional) See Note 3
125⁄8"
(314mm)
3⁄4" (19mm) Approx.
Bird
Screen
Do Not Block Drain
Holes With Caulk or
Mortar
Not
Less
Than 9"
(229mm)
Cement Mortar
C
(see table 3, page 10)
Wall Opening
Louver
(Bird Screen Not Shown)
Angle Iron
(by others)
Room Side
Exterior
Caulk
(top and 2 Sides)
Louvers
Drain Holes
(Do Not Block)
Flange
(4 Sides)
1" Minimum
Lintels (By Others)
Bird Screen
Sealed Cement Mortar
Pitched Away from Unit
Toward Louver
Figure 20 - Vertical or Horizontal Blade Wall Intake Louver (Flanged)
(Vertical Blade Shown)
Drain Holes
(Do Not Block
With Mortar
or Caulking
Materials
Bird Screen
Sealed Cement
Mortar Pitched
Away from Unit
Toward Louver
1" Minimum
Figure 21 - Vertical or Horizontal Blade Wall Intake Louver (Recessed
Without Flange) (Horizontal Blade Shown)
Lintels (By Others)
Louvers Aluminum Wall Louver
Assembly With Bird Screen
(See Note 1)
B
(see table 3,
page 10)
Steel
VentiMatic
Shutter
Assembly
41⁄8"
(105mm)
237⁄8" (606mm)
or
357⁄8" (911mm)
2" (51mm)
103⁄8"
(264mm)
3" (76mm)
Decorative Exterior Grille Also Available (See Note 2, above)
(Bird Screen not shown)
Figure 23 - Single VentiMatic Shutter & Wall Louver
Outside

Page 12 of 60 IM 817-4
8"
(203mm)
14"
(356mm)
21"
(533mm)
5"
(127 mm)
5" (127 mm)
2-7/16"
(62 mm)
7-1/4" (184 mm)
13"
(330mm)
6-1/2"
(165mm)
7" (178 mm)
1" (25 mm)
Before Setting the Unit in Place
Move the unit ventilator to the correct location. See Table 2, page 6
for approximate shipping weights.
Carefully remove unit ventilator from wood skid. Be sure to properly
dispose of the skid in accordance with local recycling rules and
guidelines.
Removing Unit from the Skid
Remove fasteners at each end which hold the unit to the skid and
carefully slide the front of the unit off the skid (1). Tip unit forward
untilthebottomoftheslottedfrontkickplateisrestingontheoor(2).
Liftrearof unitoff ofthe skidbytipping unitforward while supporting
the unit from the front, until it is possible to slide skid out from under
theunit.GENTLYLOWERtherearoftheunittotheoor(3).
Figure 26 - Front View with End Panels - Mounting Holes Locations
Mounting Holes
Figure 27 - Rear View without End Panels and Subbase - Piping and
Electrical Knockout Locations and Dimensions
Knockout Opening Between Pipe
Tunnel & End Compartment.
Rear Entry Area or Draftstop
Opening Knockouts
Outdoor Air Intake Opening
End compartment Draftstop knockouts must be removed for
proper Draftstop operation. (21-7/8" units only)
Size S07 = 48" (1219mm)
Size S10 = 60" (1524mm)
Size S13 = 72" (1828mm)
Size S15 = 84" (2133mm)
Note:
See Draftstop IM bulletin (IM 473) for suggested installation procedure.
Leakageof outdoorair wastesenergy, causesdraftsanderratic
unitventilatoroperation.Checkthefollowingdetails:Atthecorrect
unit ventilator location, examine the wall surface. Make sure that
it is smooth, plumb, and perpendicular to the oor. The seals on
the rear of the unit ventilator will take up the small irregularities
found in normal masonry construction. If the wall is irregular
or has mullions, install furring strips to provide a ush surface
against which the unit ventilator can seal. If there are moldings
on the oor/wall line, omit them behind the unit ventilator. Provide
a sealing surface at the oor line. Install a seal pad under the
unit to prevent air leakage. Install the unit ventilator against a
wall made of non-combustible material, and on a oor made of
non-combustible material. Floor must be level, unbroken and
structurally strong to support the unit.
Aluminum Wall Louver
Assembly with Bird Screen
(See Note 1)
3'' (76mm)
VentiMatic
Shutter
Assembly
Center Cover103⁄8"
(264mm)
Figure 24 - Two VentiMatic Shutters & Wall Louver
B
(see table 3,
page 10)
Outside
Decorative Exterior Grille Also Available (See Note 2, page 11)
(Bird Screen not shown)
Figure 25 - Removing Unit from Skid
1. Carefully slide the front of the unit off the front of the skid.
2. While supporting unit from the front, slowly tip unit forward until bot-
tom of kickplate is resting on oor. Lift skid slightly and GENTLY lower
the rear of the unit to the oor while pulling skid back (DO NOT LET
THE UNIT DROP).
Tip forward until kick-
plate rests on oor
Kickplate
Approx. 10"
Mounting Holes, Piping and Electrical
Knockout Locations & Dimensions
CAUTION
NOTICE

IM 817-4 Page 13 of 60
Procedure
If the unit has a cooling coil, check the condensate drain pan to be sure
it slopes down toward the drain stub-up end. To do so, compare the
right and left hand drain pan ends to Figures 30 & 31. The end with
the shallow lower bracket (Figure 30) is the low end of the drain pan.
To reverse the slope of the drain pan do the following:
1. Remove the lower bracket and upper plate from each end of the
unit,asshowningures30and31.Thisisdonebyremovingthe
screws in each with a 1/4 inch nut driver.
2. Reinstall the brackets on the opposite end of the unit.
3. Verify the standard drain connection is open on the low (drain)
end only. If the drain connection stub-outs at the high end of the
drain pan are open, seal them water tight with silicone sealer or
similar.
4. Mount static equalizer cover to low end bracket of drain pan.
Figure 28 - Condensate Drain Pan Connection Location
Left Hand Right Hand
7/8"(22 mm)
O.D. Drain
7/8"(22 mm)
O.D. Drain
Condensate
Drain
11"
(279 mm)
11"
(279 mm)
Front V iew of End Compartment
(Without End Panels)
4-3/4"
(121 mm)
Personalinjuryhazard.Wearprotectivegloves toavoidpossible
cuts and abrasions from exposed edges. Avoid contact with
sharp edges.
Figure 30 - Low End of Drain Pan (Drain End)
Overow Connection
Standard Drain Connection
1/4" hex head screws
Disconnect all electrical power before servicing unit to prevent
injury or death due to electrical shock.
The drain pan has two (2) connections on each end; a standard
drain connection and an overow connection.
Reversing Drain Pan Slope
Figure 31 - High End of Drain Pan
Shallow Upper Plate
Deep Lower Bracket
Drain Pan
Overow Connection Standard Drain Connection
1/4" hex head screws
To Clean the Drain Pan
1. Removetheshallowanddeepupperplatesfromtheunit(seegures
29 and 30).
2. Spray water into the drain pan on the high end to wash debris to
the low end (drain end).
3. Remove any debris, making sure that the drain holes are not
obstructed.
4. Wipe the drain pan with a cloth.
5. Reinstall the upper plates.
Deep Upper Plate
Shallow Lower Bracket
DANGER
CAUTION
NOTICE
Deep
Upper
Bracket
Static
Equalizer
Cover
Coil
Connections
Drain Pan
Shallow
Lower
Bracket
Figure 29 - Mount Static Equalizer Cover

Page 14 of 60 IM 817-4
Figure 32 – Typical Classroom Unit Ventilator Installation And Louver Details (see installation section for typical warnings and cautions)
Figure 33 – Typical VentiMatic Shutter Assembly Installation (see installation section for typical warnings and cautions)
Unit Gasket
Pipe Tunnel
Screws or Bolts (by others)
Weep Holes
Caulk Top And
Two Sides Of Louver
Sealed Mortar Bed
Caulk
Weep
Holes
Floor
Unit Insulating Blanket
Back Of Unit
Unit Bottom Gasket
Seal Under Unit
Bird
Screen
Internal Column For
Wall Bracing (By Others)
Unit Gasket
Louver
Unit Ventilator
Outdoor Air Opening
Outside
Roomside
Typical VentiMatic louver installation with shelving.
Outside
Roomside
VentiMatic Shutter Assembly
Building Wall
Typical Floor Unit Installation
Typical VentiMatic™Shutter and Draftstop™Installation
1" End Panel w/Cut Out
Lintel (by others)
Unit Outside Air Opening

IM 817-4 Page 15 of 60
Meeting IBC Seismic Requirements
Daikinunitventilatorscanbespecied,asfollows,tomeetInternational
Building Code seismic requirements:
• All components included in these unit ventilators are designed,
manufacturedandindependentlytested,ratedandcertiedtomeet
the seismic compliance standards of the International Building
Code.
• Components designated for use in systems that are life safety,
toxic, high hazard, combustible or ammable meet the on line,
anchorageandloadpathrequirementsforlifesafetyasdenedin
IBC sections 1621.1.6, 1621.3.3,1707.7.2. and IBC Commentary,
Volume II, section 1621.1.6, IBC notes pertaining to the release of
hazardous material.
• All components used as part of a system other than the above meet
asaminimum,allloadpathandanchoragestandardsforcomponents
as outlined in IBC section 1621.3.3 & 1707.7.2.
•  Allcompletedcomponentassembliesareclearlylabeledforeld
inspection.SeismicComplianceLabels includethemanufacturer’s
identication,designationofcertiedmodels,denitiveinformation
describing the product’s compliance characteristics, and the
IndependentCertifyingAgency’snameandreportidentication.
In addition to all seismic requirements for IBC Certication listed
elsewhere in the project specication, submittals for these units
include:
1.  A Certicate of Compliance from the Independent Certifying
Agency clearly indicating that components supplied on this
projectareincludedinthecomponentmanufacturer’sCerticate
of Compliance.
2. Clear installation instructions including all accessory components
that are part of the overall component installation.
(4) - 3/8" diam. x (dimension “Y”) galvanized
threaded rod (by others) - align with unit
mounting holes, and set into building structure
mortar or structural support column (see detail).
(4) - 1-1/2" O.D. x (dimension “X”),
galvanized steel pipe (by others),
gives rigidity to the unit in relation
with the building structure (see detail).
(4) - 3/8" galvanized nut with
washer (by others), attach from
inside unit end compartments.
Tighten nut until steel pipe is
compressed between unit and
building structure or column.
Lintel
(by others)
Building structure or
support column
Gasket on back of unit
Top mounting hole
on unit frame
1-1/2" O.D.
galvanize
steel pipe
Y
X
NOTE:Dimensions “X” and “Y” to be determined by installing
contractor based on fit up requirements of job.
*AMolly orToggle bolt may be necessary if voids in the building
structure or support columns are present.
*
DETAIL
Figure 34 - Typical IBC Seismic Installation

Page 16 of 60 IM 817-4
Make Piping Connections
Be sure the hot and chilled water supply and return system are
thoroughly ushed and cleaned before connecting piping to the
unit ventilator. Debris in the lines can damage the unit.
For All Systems
Be sure to install the control valve(s) on the correct unit ventilator.
Indiscriminate mixing of valves in the eld can result in valves
improperlysizedforthedesiredowrate,whichcanresultinpoor
operation and coil freezeups. Install control valve so there is at least 2"
(51mm)minimumclearancetoremovetheactuatorfromthevalvebody.
Becertainthatthecontrolvalveisinstalledcorrectly,withitsorientation
vertical. Valves should be installed at least 5º off center.
Be certain that the control valves are installed with the proper
port orientation to provide proper ow and fail safe operation.
Incorrect installation can result in improper unit operation, and/or
the possibility of coil freeze-up.
Withfutureservicingconsiderationsinmind,usestandard,eld-supplied
shutoff valves and union connections; this permits easy removal of the
coil or control valve if servicing is required.
While brazing, have an extinguisher readily available. Wear
appropriate eye and hand protection. Ensure all areas with
shared ventilation have ample fresh air ventilation.
Proper ventilation is required for brazing. When brazing, be sure to
protect unit ventilator components from overheating damage (melting
insulation, also damage to valves, wiring, electronics, sensors, etc.).
Beforelling,besuretoushallpipingadequatelysothatalldebris
is removed. Debris can prevent proper valve operation, resulting in
overheating, overcooling, etc.
Ensureproper insulationof supplyandreturnpiping.Proper insulation
preventslossofunitventilatorcapacity,overheatingofendcompartment,
and / or moisture dripping.
The piping to and from the unit must be protected from outside air and
freezeconditions.Thepipingmustbesuitablyinsulatedforcondensation
or heat lose or gain. Penetrations entering the unit end compartments
mustbetted/sealedforunitintegrity.
Refertogure32andgures26and27andattachtheunitventilator
tothewallthroughthefour(4)mountingholesprovided,usingeld-
suppliedfastenersappropriate to thewall construction andthe washers
providedin the brown envelopewith these instructions (gure 37).
Envelope also contains allen wrench to provide access to unit. Push
theunit ventilator tightto thewall structure sothat theoutdoor air seals
are compressed. Secure the wall fasteners to prevent the unit ventilator
from moving and tipping over.
Remove
moldings
behind unit
Unit must be anchored to an internal wall column or other suitable
support (see gure 32, page 14)
Figure 36 - Setting The Unit Ventilator In Place
Figure 35 - Leveling Legs Location
Figure 37 - Shipping Envelope Contents.
Unit Ventilator Installation
Beforesettingtheunitventilatorinposition,besurethateld-supplied
electrical connections are in place, de-energized and in accordance
with the plans.
Move the unit ventilator into position against the wall surface. Check
to see that the unit ventilator is level from end to end and back to front.
Using a 4' level is recommended. Leveling bolts are located at each
endofthefrontkickplate(seegure35).
CAUTION
CAUTION
WARNING
CAUTION
Face and Bypass damper set-up is required at start-up.
Failure to properly set-up Face and Bypass damper can result in
control problems and unit damage not covered by warranty.
Refer to Service Bulletin, UV-SB-106507312.
NOTICE

IM 817-4 Page 17 of 60
For Water Systems
Afterushingpipingadequately,soalldebrisisremoved,llthesystem.
At initial operation, vent manually by unscrewing the vent plug one or
twoturns,gure41.Afterventing,tightentheventplugrmly.
Water system under pressure. Keep face and body parts well
away from vent.
Unscrewtheventplug only oneortwocomplete turns, andvent
slowly. Water pressure can result in severe personal injury.
Use piping shut off valves and connection unions for future
servicing to the coil supply and return stubs, instead of hard
piping. This permits easy removal of the coil or control valve if
servicing is required.
Figure 41 - Vent and Drain Plug
Unscrew the vent plug one
or two turns to manually vent
system.
Figure 38 - Hot Water Coil Connections
Chilled Water Coil
Hot Water Coil
Chilled Water Return
Chilled Water Supply
Hot Water Return
Hot Water Supply
Water Coil Connections
Hook up water piping in accordance with Figure 38 and 39 for hot
water and chilled water coil connections.
Figure 39- Chilled Water Coil Connections
Failure to install water piping to coils properly can result in
improper unit operation and coil freeze-ups.
Figure 40 - Protect Components From Overheating Before Brazing
Use A Quenching Cloth
When Brazing, to Prevent
Overheating The Piping
Components (Avoid Valve
Damage and Erratic
Operation)
Vent
Drain Plug
2-pipe Chilled Water/Hot Water Systems
After making the piping connections, securely attach and insulate the
water-in temperature sensor (S5) to the water coil supply line. The
sensor should be located on the water supply line in an area where
thereis continuouswater ow.Thesensor hangsloosein thesame
end compartment as the coil connections. This sensor must be attached
correctly for proper unit operation.
After Brazing
Installprovideddonutshapedinsulationsealsaroundpipettings,by
removing white backing. Press seals up to coil partition to seal gaps
in partition insulation.
Donut insulation seals must be installed for proper air ow
through the coil.
Consider adding
piping unions
for future servicing
(by others)
Consider adding
piping unions
for future servicing
(by others)
Air Flow
Air Flow
CAUTION
NOTICE
CAUTION
WARNING

Page 18 of 60 IM 817-4
RS
J
A
B B
8-1/2"
(216mm)
13-3/4"
(349mm)
J
A
13-3/4"
(349mm)
8-1/2"
(216mm)
Air Flow Air Flow
R
S
R
S
16-1/8"
(410mm)11"
(279mm)
Air Flow
R
S
16-1/8"
(410mm)
J11"
(279mm)
K
H
Air Flow
J
K
H
R
S
J
A
B B
8-1/2"
(216mm)
13-3/4"
(349mm)
J
A
13-3/4"
(349mm)
8-1/2"
(216mm)
Air Flow Air Flow
R
S
78 = Opposite End Drain Low Capacity Steam Coil
79 = Opposite End Drain High Capacity Steam Coil
12 = Low Electric Heat Coil
13 = High Electric Heat Coil
Heating Coils
00 = None
Cooling Coils
V = 2-Row CW Coil
S = 3-Row CW Coil
W = 4-Row CW Coil
G = Direct Expansion Coil
Y = 5-Row CW Coil
Heating Only
Figure 42 - Hot Water Heating Only Unit
(Coils 65, 66, 67)
Cooling Only
Unit Series S07 S10 S13 S15
Suction Line O.D. (in/mm) 3⁄419 3⁄419 7⁄822 7⁄822
Liquid LIne O.D. (in/mm) 1⁄4 6.35 1⁄4 6 3⁄810 3⁄810
Notes:
1. All coils have same end supply and return connections.
2. Steam coils have a factory installed pressure equalizing valve and
a 24" (610mm) long pressure equalizing line which terminates
in a 1⁄2" M.P.T. tting.
3. Steam/hot water connections may be same end as cooling
coil connections, but they are recommended to be opposite
end to facilitate piping. (Must be opposite end when using AAF
controls.)
4. Cooling condensate drain pan is shipped sloped down towards
the cooling coil connections but is eld reversible.
5. Electric heating coil power connections are right end only.
Junction box has 1"(25mm) and 2" (51mm) (trade size)
knockouts, 101⁄2" (267mm) from right end of the unit.
6. For limitations with coil combinations see tables 4, 5, 8 and 9.
7. Coil stubs are
7
⁄
8
" I.D. (female) and terminate 9" (229mm) from the
end of the unit.
8. Steam coils are 11⁄8" female (sweat) connections and terminate
9” (229mm) from the end of the unit.
9. DX coils (G) have O.D. sweat connections. Interconnecting tube
by others. See table 7 for correct tubing size.
Table 6 - Dimensions
Table 7 - DX Coil (G) Connection Tubing
L.H. Connections
Electric Heating
Only
S = Supply
R = Return
R.H. Connections L.H. Connections R.H. Connections R.H. Connections
Table 4 - Heating Only – Coil Position/Combinations In Air Stream (one coil per position) Note: X indicates Available.
Face and Bypass Valve
First Position in Air Stream Second Position in Air Stream AVS AVV AVV Elect..
65 66 67 68 69 78 79 Z X X
12 13 Z X
Heating Coils
65 = 1-Row Hot Water Coil
66 = 2-Row Hot Water Coil
67 = 3-Row Hot Water Coil
68 = Low Capacity Steam Coil
69 = High Capacity Steam Coil
Cooling Coils
Z = None
Table 5 - Cooling Only – Coil Position/Combinations In Air Stream (one coil per position) Note: X indicates Available.
Face and Bypass Valve
First Position in Air Stream Second Position in Air Stream AVS AVV
Y V S W 00 X X
G 00 X
L.H. Connections
Figure 45 - Chilled Water Only Unit (Coils S, W, V) Figure 46 - Direct Expansion Cooling Only Unit (Coil G)
R.H. Connections L.H. Connections R.H. Connections
Note: For opposite end drain steam coils (code 78,79) Return (R)
is 71⁄4"(184mm) from bottom of unit and H - 2"(51mm) from back
of unit.
Figure 43 - Steam Heating Only Unit
(Coils 68, 69, 78, 79)
Figure 44- Electric Heating Only Unit
(Coils 12, 13)
Coil Headers, Locations
S = Supply
R = Return
J
Air Flow
14"
(356mm)
L
Junction Box
Unit Dimensions
Depth A B C D E F G H I J K
in 165⁄833⁄4121⁄4 4
7⁄8 7 3⁄415⁄8101⁄823⁄427⁄855/8 35
mm 422 95 311 124 198 41 257 70 73 143 76 127
in 217⁄8 9171⁄2 101⁄8 13 67⁄8153⁄8 8 81⁄8 107⁄8 81⁄4 101⁄4
mm 556 229 445 257 330 175 391 203 206 276 210 260
S = Supply
R = Return
LL
SL
J
D
C
7-1/4"
(184mm)
Air Flow
11-3/4"
(299mm)
LL
SL
J
B
Air Flow
13-3/4"
(349mm)
11-3/4"
(299mm)
D

IM 817-4 Page 19 of 60
Face and Bypass Valve
First Position in Air Stream Second Position in Air Stream AVS AVS Elect.. AVV AVV Elect.
F U D E 00 X X
65 66 67 V S X X
65 66 W X X
65 66 67 G X X
G 12 13 X
V S W 12 13 X
V S W 12 X
G V S 68 69 78 79 X X
65 Y X X
Heating Coils
65 = 1-Row Hot Water Coil
66 = 2-Row Hot Water Coil
67 = 3-Row Hot Water Coil
68 = Low Capacity Steam Coil
69 = High Capacity Steam Coil
78 = Opposite End Drain Low Capacity Steam Coil
79 = Opposite End Drain High Capacity Steam Coil
12 = Low Electric Heat Coil
13 = High Electric Heat Coil
00 = None
Chilled Water and Heating Coils
See Notes and Tables 6 and 7 on page 18
Table 8 - Heat/Cool Position/Combinations In Air Stream (one coil per position) Note: X indicates Available.
Cooling Coils
U = 2-Row CW/HW 2-Pipe Coil
D = 3-Row CW/HW 2-Pipe Coil
E = 4-Row CW/HW 2-Pipe Coil
F = 5-Row CW/HW 2-Pipe Coil
V = 2-Row CW Coil
S = 3-Row CW Coil
W = 4-Row CW Coil
Y = 5-Row CW Coil
G = Direct Expansion Coil
Y = 5-Row CW Coil
Left Hand
Figure 47 - Chilled/Hot Water (2-pipe) Unit
(Coils D, E, U)
Figure 48 - Chilled Water and Hot Water Unit
(Cooling Coils S, W, V) (Heating Coils 65, 66, 67)
Figure 49 - Chilled Water and Steam Unit
(Cooling Coils S, V)
(Heating Coils 68, 69, 78, 79)
Figure 50 - Direct Expansion (G) and Hot Water Unit
(Cooling Coil G) (Heating Coils 65, 66, 67) (Not Reheat)
Figure 51 - Direct Expansion (G) and Steam Unit
(Cooling Coil G) (Heating Coils 68, 69, 78, 79)
Figure 52 - Direct Expansion and Electric Heating
(Cooling Coils G) (Heating Coils 12, 13)
Right Hand
Right Hand
(Cooling) Left Hand (Heating) Right Hand
Figure 53 - Chilled Water (1st Position) and Electric Heating
(Cooling Coils V, S, W) (Heating Coils 12,13)
Right Hand
Note: For opposite end drain steam coils (code 78,79) Return (R) is 71⁄4" (184mm) from bottom of unit and H - 2" (51mm) from back of unit. (see
table 6 for dimensions)
Coil Headers, Locations
Direct Expansion Coils and Heating Coils (See Table 7 for Direct Expansion (DX) Coil)
(Cooling) Left Hand (Heating) Right Hand
(Cooling) Left Hand (Heating) Right Hand (Cooling) Left Hand (Heating) Right Hand
14"
(356mm)
L
Junction Box
LL
SL
J
DC
7-1/4"
(184mm)
Air Flow
11-3/4"
(299mm)
S = Supply
R = Return
S = Supply
R = Return S = Supply
R = Return
RS
J
A
BB
8-1/2"
(216mm)
13-3/4"
(349mm)
J
A
13-3/4"
(349mm)
8-1/2"
(216mm)
Air Flow Air Flow
R
S
CW Coil
R
S
13-3/4"
(350mm)
A
B
J
8-1/2"
(216mm)
R
S16-1/8"
(410mm)
E
F
J
11"
(279mm)
HW Coil
Air Flow
Air Flow
Steam
R
S13-3/4"
(350mm)
J8-1/2"
(216mm)
R
S
16-1/8"
(410mm)
A
B
J
11"
(279mm)
CW Coil
K
H
Air Flow
Air Flow
LL
SL 14-1/4"
(368mm)
J
9-3/4"
(248mm)
R
S
8-1/2"
(216mm)
Air Flow
13-3/4"
(349mm)
LL
SL
14-1/4"
(368mm)
J
B
R
S
A
Air Flow
16-1/8"
(410mm)
I
8-1/2"
(216mm)
B
F
A
G
13-3/4"
(349mm)
I
LL
SL
14-1/4"
(368mm)
J
10-1/8"
(257mm)
D
C
R
S
H
K
7-1/4"
(184mm)
Air Flow
11-3/4"
(299mm)
LL
SL
14-1/4"
(368mm)
J
B
R
S
H
K
10-1/8"
(257mm)
Air Flow
13-3/4"
(349mm)
11-3/4"
(299mm)
D
RS13-3/4"
(350mm)
A
B
J8-1/2"
(216mm)
Air Flow
14"
(356mm)
L
Junction Box

Page 20 of 60 IM 817-4
LL
SL
J
C
7-1/4"
(184mm)
Air Flow
LL
SL
J
B
Air Flow
13-3/4"
(349mm)
11-3/4"
(299mm)
D
HW Coil
R
S
16-1/8"
(410mm)
E
F
11"
(279mm)
Steam
R
S13-3/4"
(350mm)
J8-1/2"
(216mm)
R
S
16-1/8"
(410mm)
A
B
J
11"
(279mm)
CW Coil
K
H
Air Flow
Air Flow
Face and Bypass Valve
First Position in Air Stream Second Position in Air Stream AVB AVR AVR Elect.
V S 65 66 67 68 69 78 79 X X
W 65 66 X X
G 65 66 67 68 69 78 79 X
G 12 13 X
V S W 12 13 X
Y 65 X X
Reheat
Table 9 - Reheat Coil Position/Combinations In Air Stream (one coil per position) Note: X indicates Available.
Heating Coils
65 = 1-Row Hot Water Coil
66 = 2-Row Hot Water Coil
67 = 3-Row Hot Water Coil
68 = Low Capacity Steam Coil
69 = High Capacity Steam Coil
78 = Opposite End Drain Low
Capacity Steam Coil
79 = Opposite End Drain High
Capacity Steam Coil
12 = Low Electric Heat Coil
13 = High Electric Heat Coil
Cooling Coils
V = 2-Row CW Coil
S = 3-Row CW Coil
W = 4-Row CW Coil
Y = 5-Row Coil
G = Direct Expansion Coil
Figure 57 - Direct Expansion (G) and
Hot Water Unit (Cooling Coil G)
(Heating Coils 65, 66, 67)
Figure 58 - Direct Expansion (G) and
Steam Unit (Cooling Coil G)
(Heating Coils 68, 69, 78, 79)
Figure 54 - Chilled Water and Hot Water Unit
(Cooling Coils S, W, V)
(Heating Coils 65, 66, 67)
Figure 55 - Chilled Water and Steam Unit
(Cooling Coils S, V)
(Heating Coils 68, 69, 78, 79)
Figure 56- Chilled Water and Electric
Heating (Cooling Coils V, S, W)
(Heating Coils 12, 13)
Figure 59 - Direct Expansion and
Electric Heating (Cooling Coils G)
(Heating Coils 12, 13)
S = Supply
R = Return
S = Supply
R = Return
LL = Liquid Line
SL = Suction Line
Right Hand
Right Hand
Note: For opposite end drain steam coils (code 78,79) Return (R) is 71⁄4˝ (184mm) from bottom of unit and H - 2˝ (73mm) from back of unit.
Coil Headers, Locations
S = Supply
R = Return
S = Supply
R = Return
LL = Liquid Line
SL = Suction Line
(Cooling) Left Hand (Heating) Right Hand (Cooling) Left Hand (Heating) Right Hand
(Cooling) Left Hand (Heating) Right Hand (Cooling) Left Hand (Heating) Right Hand
RS13-3/4"
(350mm)
A
B
J8-1/2"
(216mm)
Air Flow
14"
(356mm)
L
Junction Box
LL
SL
J
C
7-1/4"
(184mm)
Air Flow
LL
SL
J
B
Air Flow
13-3/4"
(349mm)
11-3/4"
(299mm)
D
Steam
R
S
16-1/8"
(410mm)
11"
(279mm)
K
H
14"
(356mm)
L
Junction Box
LL
SL
J
DC
7-1/4"
(184mm)
Air Flow
11-3/4"
(299mm)
CW Coil
R
S
A
B
J
R
S
E
F
J
16-1/8"
(410mm)
11"
(279mm)
HW Coil
13-3/4"
(350mm)
8-1/2"
(216mm)
Air Flow
Air Flow