Daikin DDC Series Manual

Installation and Maintenance Manual IM 1216
Group: Applied Air Systems
Part Number: IM 1216
Date: January 2014
Light Commercial Packaged Heating and Cooling Units
DCC Series
15–20 Tons

WARNING
ATTENTION INSTALLING PERSONNEL:
Prior to installation, thoroughly familiarize yourself with this
Installation Manual. Observe all safety warnings. During
installation or repair, caution is to be observed. It is your
responsibility to install the product safely and to educate the
customer on its safe use.
RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.
These installation instructions cover the outdoor installation of single package heating and cooling units. See the Specication
Sheet applicable to your model for information regarding accessories.
NOTE: Please contact your distributor or our website for the applicable Specication Sheet referred to in this manual.
This Forced Air Central Unit Design Complies With Requirements Embodied In The American National Standard / National
Standard of Canada Shown Below.
ANSI Z21.47 • CSA-2.3 Central Furnaces
Our continuing commitment to quality products may mean a change in specications without notice.
©2013 Daikin Company, L.P.
5151 San Felipe St., Suite 500, Houston, TX 77056
www.daikincomfort.com

Index
Replacement Parts ............................2
Safety Instructions ............................2
General Information ...........................2
Unit Location.................................3
Clearances ..................................5
Roof Curb Post-Installation Checks ..............6
Roof Top Duct Connections ....................6
Rigging Details ...............................6
Electrical Wiring ..............................7
Circulating Air and Filters ......................9
Condensate Drain Connection ..................9
Startup, Adjustments, and Checks ...............9
Airow Adjustments..........................10
Motor Sheave Adjustments ....................11
Maintenance ................................13
Appendix A Blower Performance Data...........14
Belt Drive - Standard .........................14
Appendix B Electrical Data ....................15
Appendix C Unit Dimensions ..................16

2
T HIS PRODUCT CONTAINS OR PRODUCES A CHEMICAL OR CHEMICALS
WHICH MAY CAUSE SERIOUS ILLNESS OR DEATH AND WHICH ARE
KNOWN TO THE S TATE OF C ALIFORNIA TO CAUSE CANCER , BIRTH
DEFECTS OR OTHER REPRODUCTIVE HARM .
WARNING
REPLACEMENTPARTS
ORDERING PARTS
When reporting shortages or damages, or ordering repair
parts, give the complete unit model and serial numbers as
stamped on the unit’s nameplate.
Replacement parts for this appliance are available through
your contractor or local distributor. For the location of your
nearest distributor, consult the white business pages, the
yellow page section of the local telephone book or contact:
CONSUMER AFFAIRS
DAIKIN NORTH AMERICA LLC
7401 SECURITY WAY
HOUSTON, TEXAS 77040
855-770-5678
SAFETYINSTRUCTIONS
TOTHE INSTALLER
Before installing this unit, please read this manual to
familiarize yourself on the specific items which must be
adhered to, including maximum external static pressure to
unit, air temperature rise, minimum or maximum CFM and
motor speed connections.
Keep this literature in a safe place for future reference.
S HEET METAL PARTS , SCREWS , CLIPS AND SIMILAR ITEMS INHERENTLY
HAVE SHARP EDGES , AND IT IS NECESSARY THAT THE INSTALLER AND
SERVICE PERSONNEL EXERCISE CAUTION .
CAUTION
HIGH VOLTAGE!
D
ISCONNECT ALL POWER BEFORE SERVICING OR
INSTALLING THIS UNIT . M ULTIPLE POWER SOURCES MAY
BE PRESENT . F AILURE TO DO SO MAY CAUSE PROPERTY
DAMAGE , PERSONAL INJURY OR DEATH .
WARNING
WARNING
TO PREVENT THE RISK OF PROPERTY DAMAGE, PERSONAL INJURY, OR DEATH,
DO NOT STORE COMBUSTIBLE MATERIALS OR USE GASOLINE OR OTHER
FLAMMABLE LIQUIDS OR VAPORS IN THE VICINITY OF THIS APPLIANCE.
HIGH VOLTAGE!
I NSTALLATION AND REPAIR OF THIS UNIT SHOULD BE
PERFORMED ONLY BY INDIVIDUALS MEETING ( AT A
MINIMUM ) THE REQUIREMENTS OF AN “E NTRY L EVEL
T
ECHNICIAN ” AS SPECIFIED BY THE A IR C ONDITIONING ,
H
EATING , AND R EFRIGERATION I NSTITUTE (AHRI).
A
TTEMPTING TO INSTALL OR REPAIR THIS UNIT WITHOUT
SUCH BACKGROUND MAY RESULT IN PRODUCT DAMAGE ,
PERSONAL INJURY OR DEATH .
WARNING
GENERALINFORMATION
This unit is approved for outdoor installation ONLY. Ratedperfor-
manceisachievedafter72hoursofoperation.Ratedperformance
is delivered at the specified airflow. See outdoor unit specifica-
tion sheet for split system models or product specification sheet
for packaged and light commercial models. Specification sheets
can be found at www.daikincomfort.com for Daikin brand prod-
ucts. Within the website, please select the residential or com-
mercialproductsmenuandthenselect thesubmenuforthetype
ofproducttobeinstalled,suchasairconditionersorheatpumps,
to access a list of product pages that each contain links to that
model’s specification sheet.
To assure that your unit operates safely and efficiently, it must be
installed, operated, and maintained in accordance with these in-
stallation and operating instructions, all local building codes and
ordinances.

3
EPA REGULATIONS
IMPORTANT:THE UNITED STATES ENVIRONMENTAL PROTECTION AGENCY (EPA)
HAS ISSUED VARIOUS REGULATIONS REGARDING THE INTRODUCTION AND DISPOSAL
OF REFRIGERANTS IN THIS UNIT. FAILURE TO FOLLOW THESE REGULATIONS MAY
HARM THE ENVIRONMENT AND CAN LEAD TO THE IMPOSITION OF SUBSTANTIAL
FINES. BECAUSE REGULATIONS MAY VARY DUE TO PASSAGE OF NEW LAWS, WE
SUGGEST ACERTIFIED TECHNICIAN PERFORM ANY WORK DONE ON THIS UNIT.
SHOULD YOU HAVE ANY QUESTIONS PLEASE CONTACT THE LOCAL OFFICE OF THE
EPA.
NATIONAL CODES
This product is designed and manufactured to permit installation
inaccordancewithNationalCodes.Itis the installer’s responsibil-
ity to install the product in accordance with National Codes and/
or prevailing local codes and regulations.
The heating and cooling capacities of the unit should be greater
than or equal to the design heating and cooling loads of the area
to be conditioned. The loads should be calculated by an approved
method or in accordance with ASHRAE Guide or Manual J - Load
Calculations published by the Air Conditioning Contractors of
America.
Obtain from:
American National Standards Institute
1430 Broadway
New York, NY 10018
System design and installation should also, where applicable, fol-
lowinformationpresentedinacceptedindustryguidessuchasthe
ASHRAE Handbooks. The manufacturer assumes no responsibility
forequipment installedin violation of any code or regulation.The
mechanical installation of the packaged roof top units consists of
making final connections between the unit and building services;
supply and return duct connections; and drain connections (if re-
quired). The internal systems of the unit are completely factory-
installed and tested prior to shipment.
Unitsaregenerallyinstalledon asteelroofmountingcurb assem-
bly which has been shipped to the job site for installation on the
roof structure prior to the arrival of the unit. The model number
shownontheunit’sidentificationplateidentifiesthevariouscom-
ponents of the unit such as refrigeration tonnage, heating input
and voltage.
Carefully inspect the unit for damage. Any bolts or screws which
may have loosened in transit must be re-tightened. In the event
of damage, the receiver should:
1. Make notation on delivery receipt of any visible damage
to shipment or container.
2. Notify carrier promptly and request an inspection.
3. Incaseofconcealeddamage,carriershouldbenotifiedas
soon as possible-preferably within 5 days.
4. File the claim with the following supporting documents:
a. OriginalBill of Lading,certifiedcopy, or indemnitybond.
b. Original paid freight bill or indemnity in lieu thereof.
c. Original invoice or certified copy thereof, showing trade
and other discounts or reductions.
d. Copy of the inspection report issued by carrier
representative at the time damage is reported to the
carrier. The carrier is responsible for making prompt
inspection of damage and for a thorough investigation
of each claim. The distributor or manufacturer will not
accept claims from dealers for transportation damage.
NOTE: When inspecting the unit for transportation damage,
removeallpackagingmaterials.Recycleordispose ofthepackaging
material according to local codes.
PRE-INSTALLATION CHECKS
Carefully readallinstructionsfor the installationprior toinstalling
unit.Ensure eachsteporprocedureisunderstoodandanyspecial
considerations are taken into account before starting installation.
Assemblealltools,hardwareandsuppliesneededtocompletethe
installation. Some items may need to be purchased locally.
UNITLOCATION
T O PREVENT POSSIBLE EQUIPMENT DAMAGE , PROPERTY DAMAGE ,
PERSONAL INJURY OR DEATH , THE FOLLOWING BULLET POINTS MUST
BE OBSERVED WHEN INSTALLING THE UNIT .
WARNING
IMPORTANT NOTE: Remove wood shipping rails prior to installa-
tion of the unit. See important note under Roof Curb Installation
Only.
ALL INSTALLATIONS:
IMPORTANT NOTE: Unit should be energized 24 hours prior to
compressor start up to ensure crankcase heater has suffi-
ciently warmed the compressors. Compressor damage may
occur if this step is not followed.
NOTE: Appliance is shipped from factory for vertical duct
application.
Proper installation of the unit ensures trouble-free operation. Im-
proper installation can result in problems ranging from noisy
operation to property or equipment damages, dangerous condi-
tions that could result in injury or personal property damage and
could void the warranty. Give this booklet to the user and explain
it’sprovisions.Theusershould retaintheseinstructionsforfuture
reference.
•For proper operation and condensate drainage, the unit
must be mounted level.
•Theflueoutlethoodmustbeatleastthreefeetaboveany
forced air inlet located within ten feet. The economizer/
manual fresh air intake/motorized fresh air intake and
combustionairinletmountedontheunitarenotaffected
by this restriction.
•Do not locate the unit in an area where the outdoor air
(i.e. combustion air for the unit) will be frequently
contaminated by compounds containing chlorine or
fluorine. Common sources of such compounds include
swimming pool chemicals and chlorine bleaches, paint

4
stripper,adhesives,paints,varnishes,sealers,waxes(which
are not yet dried) and solvents used during construction
and remodeling. Various commercial and industrial
processes may also be sources of chlorine/fluorine
compounds.
•Toavoidpossibleillnessordeathofthebuildingoccupants,
do NOT locate outside air intake device (economizer,
manual fresh air intake, motorized fresh air intake) too
close to an exhaust outlet, gas vent termination, or
plumbing vent outlet. For specific distances required,
consult local codes.
•Allow minimum clearances from the enclosure for fire
protection,properoperation,andserviceaccess(seeUnit
Clearances). These clearances must be permanently
maintained.
•When the unit is heating, the temperature of the return
air entering the unit must be between 50°F and 100°F.
GROUND LEVEL INSTALLATIONS ONLY:
•When the unit is installed on the ground adjacent to the
building,alevelconcrete(orequal)baseisrecommended.
Prepare a base that is 3” larger than the package unit
footprint and a minimum of 3” thick.
•Thebaseshouldalsobelocated wherenorunoffofwater
from higher ground can collect in the unit.
ROOF TOP INSTALLATIONS ONLY:
•Toavoid possibleproperty damage or personalinjury, the
roof must have sufficient structural strength to carry the
weight of the unit(s) and snow or water loads as required
bylocalcodes. Consultastructuralengineertodetermine
the weight capabilities of the roof.
•The unit may be installed directly on wood floors or on
Class A, Class B, or Class C roof covering material.
•To avoid possible personal injury, a safe, flat surface for
service personnel should be provided.
•Asindicatedontheunit’sdataplate,aminimumclearance
of 36” to any combustible material is required on the
accesssideoftheunit. Allcombustiblematerialsmustbe
kept out of this area.
•This 36” clearance must also be maintained to insure
proper combustion air flow. The combustion air intake
mustnotbeblockedforanyreason,includingblockageby
snow.
•Adequate clearances from the unit to any adjacent public
walkways, adjacent buildings, building openings or
openablewindowsmustbemaintainedinaccordancewith
National Codes.
UNIT PRECAUTIONS
• Do not stand or walk on the unit.
• Donotdrillholesanywhereinpanelsorinthebaseframe
of the unit (except where indicated). Unit access panels
provide structural support.
• Do not remove any access panels until unit has been
installed on roof curb or field supplied structure.
• Donotrollunitacrossfinishedroofwithoutpriorapproval
of owner or architect.
• Do not skid or slide on any surface as this may damage
unitbase. Theunitmustbestoredonaflat,levelsurface.
Protect the condenser coil because it is easily damaged.
ROOF CURB INSTALLATIONS ONLY:
Before installing this unit...
IMPORTANT NOTE: This unit has been equipped with a shipping
braceunder the compressorsection that MUST BE REMOVED be-
fore installing the unit on a roof curb.
Please follow the instructions below to remove brace.
W HEN UNIT IS SUSPENDED , BOARDS AND SHIPPING BRACE WILL DROP WHEN
SCREWS ARE REMOVED . T O PREVENT PERSONAL INJURY , STAND CLEAR.
R
EMOVE FORK HOLE BRACKETS , BOARDS AND SHIPPING BRACE FROM BOTTOM
OF
UNIT BEFORE PLACING UNIT ONTO CURB .
CAUTION
1. Removewoodenstrutsandshippingbraceperinstallation
instructions. The struts are located in the fork holes and
areusedtoprotecttheunitfromdamagewhileliftingwith
forks. The shipping brace is located underneath the unit
(under compressors). Also remove the fork hole brackets
as shown in the following figure.
2. Locate and remove the end brackets as shown below.
LIFT OVERAPPROXIMATE
CENTER OF UNIT
SPREADER BARS
MUST BE USED WITH
LIFTING STRAPS THAT
ARE LESS THAN 16
FEETLONG
REMOVE 2 BRACKETS
ON EACH END TO
REMOVE
WOODEN STRUTS
REMOVE 2 BRACKETS
ON EACH END TO
REMOVE
SHIPPING BRACE

5
3. Lift unit per the “Rigging Details” section of this manual,
observing all warnings and cautions. When unit is lifted,
boards and shipping brace will drop if screws have been
removed. To avoid injury, STAND CLEAR.
4. Dispose of the boards and brace appropriately.
Curbinstallationsmustcomplywithlocalcodesandshouldbedone
inaccordancewiththeestablishedguidelinesoftheNationalRoof-
ing Contractors Association.
Proper unit installation requires that the roof curb be firmly and
permanently attached to the roof structure. Check for adequate
fastening method prior to setting the unit on the curb.
Full perimeter roof curbs are available from the factory and are
shipped unassembled. Field assembly, squaring, leveling and
mounting on the roof structure are the responsibility of the in-
stalling contractor. All required hardware necessary for the as-
sembly of the sheet metal curb is included in the curb accessory.
T O PREVENT POSSIBLE EQUIPMENT DAMAGE , PROPERTY DAMAGE ,
PERSONAL INJURY OR DEATH , THE FOLLOWING BULLET POINTS MUST
BE OBSERVED WHEN INSTALLING THE UNIT .
WARNING
•Sufficient structural support must be determined prior to
locating and mounting the curb and package unit.
•Ductwork must be constructed using industry guidelines.
The duct work must be placed into the roof curb before
mounting the package unit. Our full perimeter curbs
includeduct connection framesto be assembledwiththe
curb. Cantilevered type curbs are not available from the
factory.
•Curb insulation, cant strips, flashing and general roofing
material are furnished by the contractor.
The curbs must be supported on parallel sides by roof members.
The roof members must not penetrate supply and return duct
opening areas as damage to the unit might occur.
NOTE:Theunitandcurbaccessoriesaredesignedtoallowvertical
ductinstallationbeforeunitplacement. Ductinstallationafterunit
placement is not recommended.
A LL CURBS LOOK SIMILAR . T O AVOID INCORRECT CURB
POSITIONING , CHECK JOB PLANS CAREFULLY AND VERIFY MARKINGS
ON CURB ASSEMBLY . I NSTRUCTIONS MAY VARY IN CURB STYLES AND
SUPERSEDES INFORMATION SHOWN .
CAUTION
See the manual shipped with the roof curb for assembly and in-
stallation instructions.
CLEARANCES
36”; minimum
roof overhang
48” Min
.
65”
Min.*
48”
Min.
48”
Min.*
*Insituationsthathavemultipleunits,a48”minimumclearanceis
required between the condenser coils.
UNIT CLEARANCES
Adequateclearancearoundtheunitshouldbekeptforsafety,ser-
vice, maintenance, and proper unit operation. A total clearance
of75”aroundthisunitisrecommendedtofacilitatepossibleblower
assembly, shaft, wheel replacement, coil, heat exchanger, electric
heat and gas furnace removal. This unit must not be installed be-
neath any obstruction. This unit should be installed remote from
all building exhausts to inhibit ingestion of exhaust air into the
unit’s fresh air intake.
Insulated
Panels
Roof Curb Installation

6
ROOFCURB POST-INSTALLATION CHECKS
Afterinstallation,checkthetopofthecurb,ductconnectionframe
and duct flanges to make sure gasket has been applied properly.
Gasket should be firmly applied to the top of the curb perimeter,
duct flanges and any exposed duct connection frame. If gasket is
loose, re-apply using strong weather resistant adhesive.
PROTRUSION
Inspect curb to ensure that none of the utility services (electric)
routed through the curb protrude above the curb.
I F PROTRUSIONS EXIST , DO NO ATTEMPT TO SET UNIT ON CURB .
CAUTION
ROOFTOP DUCTCONNECTIONS
Install all duct connections on the unit before placing the unit on
rooftop.
RIGGINGDETAILS
WARNING
TO PREVENT PROPERTY DAMAGE, THE UNIT SHOULD REMAIN IN AN UPRIGHT
POSITION DURING ALL RIGGING AND MOVING OPERATIONS. TO FACILITATE
LIFTING AND MOVING WHEN A CRANE IS USED, PLACE THE UNITINAN
ADEQUATECABLE SLING.
D O NOT LIFT UNITS TWO AT A TIME . P ROVISIONS FOR FORKS HAVE
BEEN INCLUDED IN THE UNIT BASE FRAME . M INIMUM FORK LENGTH IS
72”
TO PREVENT DAMAGE TO THE UNIT .
CAUTION
Provisionsforforkshavebeenincludedintheunitbaseframe. No
other fork locations are approved.
WARNING
TO PREVENT POSSIBLE EQUIPMENT DAMAGE, PROPERTY DAMAGE, PERSONAL
INJURY OR DEATH, THE FOLLOWING BULLET POINTS MUST BE OBSERVED
WHEN INSTALLING THE UNIT.
• Unit must be lifted by the four lifting holes located at the
base frame corners.
• Liftingcablesshouldbeattachedtotheunitwithshackles.
• The distance between the crane hook and the top of the
unit must not be less than 60”.
• Two spreader bars must span over the unit to prevent
damage to the cabinet by the lift cables. Spreader bars
mustbe of sufficient length so that cablesdo not come in
contact with the unit during transport. Remove wood
struts mounted beneath unit base frame before setting
unit on roof curb. These struts are intended to protect
unit base frame from fork lift damage. Removal is
accomplishedbyextractingthe sheet metal retainers and
pulling the struts through the base of the unit. Refer to
rigging label on the unit.
Important: If using bottom discharge with roof curb, ductwork
shouldbeattachedtothecurbpriortoinstallingtheunit.Ductwork
dimensions are shown in Roof Curb Installation Instructions.
Refer to the Roof Curb Installation Instructions for proper curb
installation. Curbing must be installed in compliance with the Na-
tional Roofing Contractors Association Manual.
Lower unit carefully onto roof mounting curb. While rigging unit,
centerofgravitywillcausecondenserendtobelowerthansupply
air end.
W HEN UNIT IS SUSPENDED , BOARDS AND SHIPPING BRACE WILL DROP WHEN
SCREWS ARE REMOVED . T O PREVENT PERSONAL INJURY , STAND CLEAR.
R
EMOVE FORK HOLE BRACKETS , BOARDS AND SHIPPING BRACE FROM BOTTOM
OF
UNIT BEFORE PLACING UNIT ONTO CURB .
CAUTION
To assist in determining rigging requirements, unit weights are
shown as follows:
COMPRESSOR 1
COMPRESSOR 2
CG
EVAPORATORCOILS
A
B
C
XD
Y
CORNER & CENTER OF GRAVITY LOCATIONS

7
Corner Weight - A 590 644
Corner Weight - B 482 525
Corner Weight - C 492 504
Corner Weight - D 401 412
UnitShipping Weight 2080 2202
UnitOperatingWeight 1965 2085
X (Inches) 60" 58"
Y(Inches) 40" 40"
DCCWeights
(lbs)
DATA 15 Tons 20 Tons
NOTE: These weights are without accessories installed.
T O PREVENT SEVERE DAMAGE TO THE BOTTOM OF THE UNIT , DO NOT
FORK LIFT UNIT AFTER WOOD STRUTS HAVE BEEN REMOVED .
CAUTION
Bring condenser end of unit into alignment with the curb. With
condenserendofthe unit restingoncurbmemberandusing curb
as a fulcrum, lower opposite end of the unit until entire unit is
seated on the curb. When a rectangular cantilever curb is used,
care should be taken to center the unit. Check for proper align-
ment and orientation of supply and return openings with duct.
RIGGING REMOVAL
T O PREVENT DAMAGE TO THE UNIT , DO NOT ALLOW CRANE HOOKS
AND SPREADER BARS TO REST ON THE ROOF OF THE UNIT .
CAUTION
Removespreaderbars,liftingcablesandotherriggingequipment.
ELECTRICALWIRING
HIGH VOLTAGE!
D
ISCONNECT ALL POWER BEFORE SERVICING OR
INSTALLING THIS UNIT . M ULTIPLE POWER SOURCES MAY
BE PRESENT . F AILURE TO DO SO MAY CAUSE PROPERTY
DAMAGE , PERSONAL INJURY OR DEATH .
WARNING
HIGH VOLTAGE!
T
O AVOID PERSONAL INJURY OR DEATH DUE TO
ELECTRICAL SHOCK , DO NOT TAMPER WITH FACTORY
WIRING . T HE INTERNAL POWER AND CONTROL WIRING
OF THESE UNITS ARE FACTORY - INSTALLED AND HAVE
BEEN THOROUGHLY TESTED PRIOR TO SHIPMENT .
C
ONTACT YOUR LOCAL REPRESENTATIVE IF
ASSISTANCE IS REQUIRED .
WARNING
T O PREVENT DAMAGE TO THE WIRING , PROTECT WIRING FROM
SHARP EDGES . F OLLOW NATIONAL ELECTRICAL CODE AND ALL
LOCAL CODES AND ORDINANCES . D O NOT ROUTE WIRES THROUGH
REMOVABLE ACCESS PANELS .
CAUTION
C ONDUIT AND FITTINGS MUST BE WEATHER - TIGHT TO PREVENT
WATER ENTRY INTO THE BUILDING .
CAUTION
For unit protection, use a fuse or HACR circuit breaker that is in
excess of the circuit ampacity, but less than or equal to the maxi-
mum overcurrent protection device. DO NOT EXCEED THE MAXI-
MUM OVERCURRENT DEVICE SIZE SHOWN ON UNIT DATA PLATE.
All line voltage connections must be made through weatherproof
fittings. All exterior power supply and ground wiring must be in
approved weatherproof conduit.
The main power supply wiring to the unit and low voltage wiring
to accessory controls must be done in accordance with these in-
structions,thelatesteditionoftheNationalElectricalCode(ANSI/
NFPA 70), and all local codes and ordinances. All field wiring shall
conform with the temperature limitations for Type T wire (63°F/
35°C rise).
Themainpowersupply shall be three-phase,threewire. Theunit
is factory wired for the voltage shown on the unit’s data plate.
NOTE:Ifsupplyvoltageis208V,allleadsonprimaryoftransformer
TRANS1 must be moved from the 230V to the 208V tap.
Mainpowerwiringshouldbesizedfortheminimumwireampacity
shown on the unit’s data plate. Size wires in accordance with the
ampacity tables in Article 310 of the National Electrical Code. If
long wires are required, it may be necessary to increase the wire
sizetopreventexcessivevoltagedrop. Wiresshouldbesizedfora
maximum of 3% voltage drop.
CAUTION
TO AVOID PROPERTY DAMAGE OR PERSONAL INJURY DUE TO FIRE, USE
ONLY COPPER CONDUCTORS.
L ABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING
CONTROLS . W IRING ERRORS CAN CAUSE IMPROPER AND
DANGEROUS OPERATION . V ERIFY PROPER OPERATION AFTER
SERVICING .
CAUTION
NOTE: A weather-tight disconnect switch, properly sized for the
unittotalload,mustbefield orfactoryinstalled. Anexternalfield
supplied disconnect may be mounted on the exterior panel.
Ensure the data plate is not covered by the field-supplied
disconnect switch.

8
• Some disconnect switches are not fused. Protect the
powerleadsatthepointofdistributioninaccordancewith
the unit’s data plate.
• Theunitmustbeelectricallygroundedinaccordancewith
localcodesor,intheabsenceoflocalcodes,withthelatest
edition of the National Electrical Code (ANSI-NFPA 70). A
ground lug is provided for this purpose. Size grounding
conductorinaccordancewithTable250-95oftheNational
ElectricalCode. Do not use the groundlugforconnecting
a neutral conductor.
• Connect power wiring to the electrical middle contactor
within the main control box of power block, if equipped.
Low Voltage
Terminal Strip
Thermostat wiring
for all units
connect to low
voltage strip
Ground
Lug
Line voltage connects
to power block on
Coolers and the 230v
Gas Packs
Line voltage connects
to middle contactor
on 460v and 575v
Gas Packs
(or power block
if equipped)
Power Block
(Coolers &
230V Gas Packs
Only)
Field wiring enters
from this direction
POWER AND LOW VOLTAGE BLOCK LOCATIONS
F AILURE OF UNIT DUE TO OPERATION ON IMPROPER LINE VOLTAGE
OR WITH EXCESSIVE PHASE UNBALANCE CONSTITUTES PRODUCT
ABUSE
AND WILL VOID YOUR WARRANTY AND MAY CAUSE SEVERE
DAMAGE
TO THE UNIT ELECTRICAL COMPONENTS .
WARNING
Areas Without Convenience Outlet
It is recommended that an independent 115V power source be
brought to the vicinity of the roof top unit for portable lights and
tools used by the service mechanic.
NOTE: Refer to local codes for requirements. These outlets can
also be factory installed.
UNITS INSTALLED ON ROOF TOPS
Main power and low voltage wiring may enter the unit through
the side or through the roof curb. Install conduit connectors at
the desired entrance locations. External connectors must be
weatherproof. Allholesintheunitbasemustbesealed(including
those around conduit nuts) to prevent water leakage into build-
ing. All required conduit and fittings are to be field supplied.
Supplyvoltagetorooftopunitmustnotvarybymorethan10%of
the value indicated on the unit’s data plate. Phase voltage unbal-
ance must not exceed 2%. Contact your local power company for
correction of improper voltage or phase unbalance.
ELECTRICAL ENTRANCE LOCATIONS
Unit is equipped with Single Point Power Block and Low Voltage
Block.
LOW VOLTAGE CONTROL WIRING
1. A 24V thermostat must be installed for unit operation. It
may be purchased with the unit or field -supplied.
Thermostatsmaybeprogrammableorelectromechanical
as required.
2. Locate thermostat or remote sensor in the conditioned
space where it will sense average temperature. Do not
locate the device where it may be directly exposed to
supply air, sunlight or other sources of heat. Follow
installation instructions packaged with the thermostat.
3. Use #18 AWG wire for 24V control wiring runs not
exceeding75feet.Use#16AWGwirefor24Vcontrolwiring
runs not exceeding 125 feet. Use #14 AWG wire for 24V
control wiring runs not exceeding 200 feet. Low voltage
wiringmaybeNationalElectricalCode(NEC)Class2where
permitted by local codes.
4. Route thermostat wires from sub-base terminals to the
unit. Control wiring should enter through the duct panel
(dimplemarksentrancelocation).Connectthermostatand
any accessory wiring to low voltage terminal block TB1 in
the main control box.
NOTE: Field-supplied conduit may need to be installed
depending on unit/curb configuration. Use #18 AWG solid
conductor wire whenever connecting thermostat wires to
terminals on sub-base. DO NOT use larger than #18 AWG wire. A
transition to #18 AWG wire may be required before entering
thermostat sub-base.
NOTE: Refer to unit wiring diagrams for thermostat hookups.

9
CIRCULATING AIR AND FILTERS
DUCTWORK
Thesupplyductfromtheunitthroughawallmaybeinstalledwith-
out clearance. However, minimum unit clearances must be main-
tained (see “Clearances”section). The supplyduct should be pro-
vided with an access panel large enough to inspect the air cham-
ber downstream of the heat exchanger. A cover should be tightly
attached to prevent air leaks.
Ductwork dimensions are shown in the roof curb installation
manual.
If desired, supply and return duct connections to the unit may be
made with flexible connections to reduce possible unit operating
sound transmission.
CONDENSATEDRAINCONNECTION
CONDENSATE DRAIN CONNECTION
A 1” female NPT drain connection is supplied on the side of the
unit and a 1” male NPT on the bottom of the drain pan for con-
densatepiping. Anexternaltrapmustbe installedforpropercon-
densate drainage.
UNIT 2" MINIMUM
FLEXIBLE
TUBING-HOSE
OR PIPE 3" MINIMUM
A
POSITIVE LIQUID
SEAL IS REQUIRED
DRAIN CONNECTION
Install condensate drain trap as shown. Use 1" drain line and fit-
tings or larger. Do not operate without trap.
HORIZONTAL DRAIN
Drainageof condensatedirectlyontothe roof maybeacceptable;
refer to local code. It is recommended that a small drip pad of
either stone, mortar, wood or metal be provided to prevent any
possible damage to the roof.
CLEANING
Due to the fact that drain pans in any air conditioning unit
will have some moisture in them, algae and fungus will grow
due to airborne bacteria and spores. Periodic cleaning is
necessary to prevent this build-up from plugging the drain.
STARTUP,ADJUSTMENTS,ANDCHECKS
HIGH VOLTAGE!
OND THE FRAME OF THIS UNIT TO
THE BUILDING ELECTRICAL GROUND BY USE OF THE
GROUNDING TERMINAL PROVIDED OR OTHER
ACCEPTABLE MEANS . D ISCONNECT ALL POWER BEFORE
SERVICING OR INSTALLING THIS UNIT .
T
O AVOID PERSONAL INJURY OR DEATH DUE TO
ELECTRICAL SHOCK , B
WARNING
PRE-STARTUP INSTRUCTIONS
T O PREVENT PROPERTY DAMAGE OR PERSONAL INJURY , D O NOT
START THE UNIT UNTIL ALL NECESSARY PRE - CHECKS AND TESTS
HAVE BEEN PERFORMED .
CAUTION
Priortothe beginning of Startup,Adjustments,andChecksproce-
dures, the following steps should be completed in the building.
MOVING MACHINERY HAZARD!
T
O PREVENT POSSIBLE PERSONAL INJURY OR DEATH , DISCONNECT
POWER TO THE UNIT AND PADLOCK IN THE “OFF” POSITION BEFORE
SERVICNG FANS .
WARNING
HEATING STARTUP
On new installations, or if a major component has been replaced,
the operation of the unit must be checked.
Check unit operation as outlined in the following instructions. If
any sparking, odors, or unusual sounds are encountered, shut off
electrical power and recheck for wiring errors, or obstructions in
or near the blower motors. Duct coversmust be removed before
operating unit.
The Startup, Adjustments, and Checks procedure provides a step-
by-stepsequencewhich,iffollowed,willassuretheproperstartup
of the equipment in the minimum amount of time. Air balancing
of duct system is not considered part of this procedure. However,
itisanimportantphaseofanyairconditioningsystemstartupand
shouldbeperformeduponcompletionoftheStartup,Adjustments,
andChecksprocedure.TheStartup,Adjustments,andCheckspro-
cedureatoutsideambientsbelow55°Fshouldbelimitedtoareadi-
nesscheckoftherefrigerationsystemwiththerequiredfinalcheck
and calibration left to be completed when the outside ambient
rises above 55°F.

10
TEMPORARY HEATING ORCOOLING
Iftheunitistobeusedfortemporaryheatingorcooling,a“Startup,
Adjustments, and Checks” must first be performed in accordance
withthismanual.Failuretocomplywiththisrequirementwillvoid
the warranty. After the machines are used for temporary heating
or cooling, inspect the coils, fans, and motors for unacceptable
levels of construction dust and dirt and install new filters.
CONTRACTOR RESPONSIBILITY
The installing contractor must be certain that:
• All supply and return air ductwork is in place, properly
sealed and corresponds with installation instructions.
• All thermostats are mounted and wired in accordance
with installation instructions.
• All electric power, all gas, hot water or steam line
connections, and the condensate drain installation have
been made to each unit on the job. These main supply
linesmustbefunctionalandcapableofoperatingallunits
simultaneously.
• All filters are in place.
ROOF CURB INSTALLATION CHECK
Inspect the roof curb for correct installation. The unit and curb
assembly should be level. Inspect the flashing of the roof mount-
ing curb to the roof, especially at the corners, for good workman-
ship. Also check for leaks around gaskets. Note any deficiencies in
a separate report and forward to the contractor.
OBSTRUCTIONS, FAN CLEARANCE AND WIRING
Remove any extraneous construction and shipping materials that
may be found during this procedure. Rotate all fans manually to
check for proper clearances and that they rotate freely. Check for
bolts and screws that may have jarred loose during shipment to
the job site. Retighten if necessary. Re-tighten all electrical con-
nections.
FIELD DUCT CONNECTIONS
Verify that all duct connections are tight and that there is no air
bypass between supply and return.
FILTER SECTION CHECK
Removefiltersectionaccesspanelsandcheckthatfiltersareprop-
erly installed. Note airflow arrows on filter frames.
PRE-STARTUP PRECAUTIONS
It is important to your safety that the unit has been properly
groundedduringinstallation.Check groundlugconnectioninmain
control box for tightness prior to closing circuit breaker or discon-
nect switch. Verify that supply voltage on line side of disconnect
agrees with voltage on unit identification plate and is within the
utilizationvoltagerangeasindicatedinAppendixCElectricalData.
System Voltage - That nominal voltage value assigned to a circuit
or system for the purpose of designating its voltage class.
Nameplate Voltage - That voltage assigned to a piece of equip-
ment for the purpose of designating its voltage class and for the
purposeof defining the minimumand maximumvoltageatwhich
the equipment will operate.
UtilizationVoltage-Thevoltageofthelineterminalsoftheequip-
ment at which the equipment must give fully satisfactory perfor-
mance. Once it is established that supply voltage will be main-
tained within the utilization range under all system conditions,
check and calculate if an unbalanced condition exists between
phases. Calculate percent voltage unbalance as follows:
Three Phase Models Only
3) PERCENT VOLTAGE
UNBALANCE
2) MAXIMUM VOLTAGE DEVIATIONS
FROM AVERAGE VOLTAGE
1) AVERAGE VOLTAGE
HOW TO USE THE FORMULA:
EXAMPLE: With voltage of 220, 216, and 213
1) Average Voltage = 220+216+213=649 / 3 = 216
2) Maximum Voltage Deviations from Average Voltage = 220 - 216 = 4
3) Percent Voltage Unbalance = 100 x = = 1.8%
Percent voltage unbalance MUST NOT exceed 2%.
4
216 400
216
= 100 X
AIRFLOWADJUSTMENTS
NOTE:For2 SpeedModels,airflowadjustmentsmustbemadeon
high speed, i.e., 2nd stage cooling or in heat mode.
The drive on the supply fan is typically set in the middle of the
RPM range. The drive motor sheave pitch diameter is field adjust-
able for the required airflow. Refer to the following “Drive
Adjustments” section.
Whenthefinaladjustmentsarecomplete,thecurrentdrawofthe
motor should be checked and compared to the full load current
rating of the motor. The amperage must not exceed the service
factor stamped on the motor nameplate. The total airflow must
notbeless than thatrequired foroperationoftheelectric heaters
or the furnace.
Ifaneconomizerisinstalled,checktheunitoperatingbalancewith
theeconomizeratfulloutsideairandatminimumoutsideair. Upon
completion of the air flow balancing, we recommend replacing
the variable pitched motor sheave with a properly-sized fixed
sheave.Amatchingfixedsheavewillprovidelongerbeltandbear-
ing life and vibration free operation. Initially, it is best to have a
variable pitched motor sheave for the purpose of airflow balanc-
ing, but once the balance has been achieved, fixed sheaves main-
tain alignment and minimize vibration more effectively. For direct
drive units, move green wire for fan.
NOTE:On“non-twospeedmodels”(two-speedmodelshavea“V”
in the eleventh character of the model number), never run CFM
below 300 CFM per ton. Evaporator freezing or poor unit perfor-
mance is possible.
SET EVAPORATOR FAN RPM
ActualRPM’smustbesetandverifiedwithatachometerorstrobe
light. Refer to Appendices A and B for basic unit fan RPM. Refer
also to “Airflow” section of this manual. With disconnect switch
open, disconnect thermostat wires from terminals Y and W. This

11
willpreventheatingandmechanicalcoolingfromcomingon. Place
ajumperwireacrossterminalsRandGatTB1terminalblock.Close
disconnect switch; evaporator fan motor will operate so RPM can
be checked.
EVAPORATOR FAN ROTATION CHECK (THREE PHASE MODELS ONLY)
Checkthat fanrotatesclockwise when viewed fromthe drive side
of unit and in accordance with rotation arrow shown on blower
housing. If it does not, reverse the two incoming power cables at
Single Point Power Block. In this case, repeat bearing check.
Donotattempttochangeloadsidewiring.Internalwiring assures
all motors and compressors will rotate in correct direction once
evaporator fan motor rotation check has been made.
ELECTRICAL INPUT CHECK
Makepreliminarycheckofevaporatorfanamperedrawandverify
that motor nameplate amps are not exceeded. A final check of
amp draw should be made upon completion of air balancing of
the duct system (see Appendix C).
BELT DRIVE MODELS ONLY
BEARING CHECK
Priortoenergizinganyfans,checkandmakesurethatallsetscrews
are tight so that bearings are properly secured to shafts.
TENSION AND ALIGNMENT ADJUSTMENT
Correct belt tension is very important to the life of your belt. Too
loose a belt will shorten its life; too tight, premature motor and
bearing failure will occur. Check you belt drive for adequate “run-
in” belt tension by measuring the force required to deflect the
belt at the midpoint of the span length. Belt tension force can be
measured using a belt tension gauge, available through most belt
drive manufacturers.
SPANLENGTHt
*DEFLECTION
FORCE
h
C
d
H
D
*Apply force to the center of the span.
t = Span length, inches
C = Center distance, inches
D = Larger sheave diameter, inches
d = Smaller sheave diameter, inches
h = Deflection height, inches
DRIVE BELT TENSION ADJUSTMENT
BELT DRIVE Used New
15Ton B, BX Standard 4.3 to5.5 5.5+ .5 8.2+.5 1/4±1/16
20Ton B, BA Standard 4.3 to5.5 5.5+ .5 8.2 + .5 1/4 ± 1/16
MODEL DEFLECTION
(in)
DEFLECTION
FORCE (lbs)
SHEAVE
DIAMETER
(in)
TYPE
RECOMMENDED POUNDS OF FORCE PER BELT
New V-belts will drop rapidly during the first few hours of use.
Check tension frequently during the first 24 hours of operation.
Tensionshouldfallbetweentheminimumandmaximumforce.To
determine the deflection distance from a normal position, mea-
sure the distance from sheave to sheave using a straightedge or a
cord. This is your reference line. On multiple belt drives, an adja-
cent undeflected belt can be used as a reference.
MOTOR SHEAVE ADJUSTMENTS
VL, VM& 2VP VARIABLE PITCH KEY TYPE MOTOR SHEAVES
Thedriving anddrivenmotor sheavesshouldbein alignmentwith
each other and the shafts parallel.
VL& VMSHEAVES ADJUSTMENT
1. Loosen set screw “B” using a 5/32" Allen key.
2. Making half or full turns from closed position, adjust
sheave pitch diameter for desired speed. DO NOT OPEN
MORE THAN SIX FULL TURNS.
3. Tighten set screw “B” securely over flat.
4. Carefully put on belts and adjust belt tension. DO NOT
FORCE BELTS OVER GROOVES.
5. Ensureallkeysareinplaceandthesetscrewstightbefore
starting drive. Recheck set screws and belt tension after
24 hours service.
NOTE: Future adjustments should be made by loosening the belt
tension and increasing or decreasing the pitch diameter of the
sheavebyhalforfullturnsasrequired.Readjustbelttensionbefore
starting drive.
C
B
VL & VM
NOTE: Do not operate sheave with flange projecting beyond the
hub end.

12
REFRIGERATION SYSTEM CHECKS
Ensurethehold-downboltsonthecompressoraresecureandhave
not vibrated loose during shipment. Check that vibration grom-
metshavebeeninstalled.Visuallycheckallpipingandclamps.The
entire refrigeration system has been factory charged and tested,
making it unnecessary to field charge. Factory charges are shown
in Appendix C and on the unit nameplate.
START-UPPROCEDURE AND CHECKLIST
Begin with power turned off at all disconnects.
1. Turn thermostat system switch to “Cool,” and fan switch
to “Auto” and turn temperature setting as high as it will
go.
2. Inspect all registers and set them to the normal open
position.
3. Turn on the electrical supply at the disconnect.
4. Turn the fan switch to the “ON” position. The blower
should operate after a 7-second delay.
5. Turn the fanswitchto “Auto”position.The blower should
stop after a 65 second delay.
6. SlowlylowerthecoolingtemperatureuntilfirststageCOOL
(LOW COOL) starts. The blower, both fans, and first stage
compressor should now be operating. Allow the unit to
run 10 minutes, make sure cool air is being supplied by
the unit.
7. Lowerthe coolingtemperaturefurther until secondstage
COOL(HIGHCOOL)starts.Theblower,bothfans,andboth
compressors should now be operating. Allow the unit to
run 10 minutes, make sure cool air is being supplied by
the unit.
8. Turn the temperature setting to the highest position,
stopping the unit. The indoor blower will continue to run
for 65 seconds.
9. Turn the thermostat system switch to “OFF” and
disconnect all power when servicing the unit.
START-UP PROCEDURE AND CHECKLIST FOR 2 SPEED MODELS:
Models with a V in the 11th position of the model number.
For 2 speed models, the indoor blower will operate on low speed
when in “Fan Only” mode or while in first stage “Cooling” mode.
Unit will operate on high speed in “Heating” mode and while in
second stage “Cooling” mode.
The start-up procedure is the same as for “Air Conditioning Start-
up Procedure” with the understanding that in Step 6, the indoor
blowerwill runatlow speed(~1175motorrpm)andinStep7,the
indoor blower will operate at high speed (~1775 motor rpm).
NOTE: While in the Cooling Mode, to prevent frost from forming
on the evaporator while the unit is operating in outdoor
temperatures of 65°F or lower, it is recommended that a low
ambientkit (LAKT-**) is used. Thisisstronglyrecommended for2
Speed models due to the lower airflow while in the first stage
cooling. To further protect the compressor from damage during
lowambientconditions,aFreezestatKit(FSK01)canbeaddedthat
turnsthe compressoroffwhentheevaporatortemperaturedrops
too low.
HIGH VOLTAGE!
D
ISCONNECT ALL POWER BEFORE SERVICING OR
INSTALLING THIS UNIT . M ULTIPLE POWER SOURCES MAY
BE PRESENT . F AILURE TO DO SO MAY CAUSE PROPERTY
DAMAGE , PERSONAL INJURY OR DEATH .
WARNING
REFRIGERATION PERFORMANCE CHECK
Check that compressor RLA corresponds to values shown in Ap-
pendix B. RLA draw can be much lower than values listed at low
load conditions and low ambient condensing temperatures. Val-
ues in Appendix B can slightly exceed at high load conditions and
high ambient condensing temperatures.
FINAL SYSTEM CHECKS
10. Checktoseeifallsupplyandreturnairgrillesareadjusted
and the air distribution system is balanced for the best
compromise between heating and cooling.
11. Check for air leaks in the ductwork. See Sections on Air
Flow Adjustments.
12. Make sure the unit is free of “rattles”, and the tubing in
the unit is free from excessive vibration. Also make sure
tubesor lines arenotrubbing against eachother or sheet
metal surfaces or edges. If so, correct the trouble.
13. Set the thermostat at the appropriate setting for cooling
and heating or automatic change over for normal use.
14. BesuretheOwnerisinstructedontheunitoperation,filter,
servicing, correct thermostat operation, etc.

13
MAINTENANCE
HIGH VOLTAGE!
D
ISCONNECT ALL POWER BEFORE SERVICING OR
INSTALLING THIS UNIT . M ULTIPLE POWER SOURCES MAY
BE PRESENT . F AILURE TO DO SO MAY CAUSE PROPERTY
DAMAGE , PERSONAL INJURY OR DEATH .
WARNING
T O PREVENT PERSONAL INJURY OR DEATH DUE TO IMPROPER
INSTALLATION , ADJUSTMENT , ALTERATION , SERVICE OR
MAINTENANCE , REFER TO THIS MANUAL . F OR ADDITIONAL
ASSISTANCE OR INFORMATION , CONSULT A QUALIFIED INSTALLER ,
SERVICE AGENCY OR THE GAS SUPPLIER .
WARNING
S HEET METAL PARTS , SCREWS , CLIPS AND SIMILAR ITEMS INHERENTLY
HAVE SHARP EDGES , AND IT IS NECESSARY THAT THE INSTALLER AND
SERVICE PERSONNEL EXERCISE CAUTION .
CAUTION
Preventive maintenance is the best way to avoid unnecessary ex-
pense and inconvenience. Have this system inspected at regular
intervalsby qualified servicepersonnel,atleasttwicea year. Rou-
tine maintenance should cover the following items:
1. Tighten all belts, set screws, and wire connections.
2. Cleanevaporatorandcondensercoilsmechanicallyorwith
coldwater,ifnecessary.Usuallyanyfoulingisonlymatted
ontheenteringair faceof the coilandcanberemoved by
brushing.
3. Lubricate motor bearings.
4. Align or replace belts as needed.
5. Replace filters as needed (see below).
6. Check for blockage of condensate drain.
7. Check power and control voltages.
8. Check running amperage.
9. Check operating temperatures and pressures.
10. Check and adjust temperature and pressure controls.
11. Check and adjust damper linkages.
12. Check operation of all safety controls.
13. Examine gas furnaces (see below and the User’s
Information Manual).
14. Check condenser fans and tighten set screws.
FILTERS
CAUTION
TO PREVENT PROPERTY DAMAGE DUE TO FIRE AND LOSS OF
EQUIPMENT EFFICIENCY OR EQUIPMENT DAMAGE DUE TODUST AND LINT
BUILD UP ON INTERNAL PARTS, NEVER OPERATE UNIT WITHOUT AN AIR
FILTER INSTALLED IN THE RETURN AIR SYSTEM.
Every application may require a different frequency of replace-
ment of dirty filters. Filters must be replaced at least every three
(3) months during operating seasons.
Dirty filters are the most common cause of inadequate heating or
cooling performance. Filter inspection should be made at least
everytwomonths;moreoftenifnecessarybecauseoflocalcondi-
tions and usage.
Dirty throwaway filters should be discarded and replaced with a
new, clean filter.
Disposable return air filters are supplied with this unit. See the
unit Specification Sheet or Technical Manual for the correct size
and part number. To remove the filters, remove the filter access
panel on return side of the unit.
CABINET FINISH MAINTENANCE
Useafinegrade automotivewaxonthecabinetfinishtomaintain
the finish’s original high luster. This is especially important in in-
stallations with extended periods of direct sunlight.
CLEAN OUTSIDE COIL (QUALIFIED SERVICER ONLY)
The coil with the outside air flowing over it should be inspected
annuallyandcleanedasfrequentlyasnecessarytokeepthefinned
areas free of lint, hair and debris.
CONDENSER FANS
Bearingsonthecondenserfanmotorsarepermanentlylubricated.
No additional oiling is required.
LUBRICATION
The fan shaft bearings and the supply fan motor have grease fit-
tingsthatshouldbelubricatedduringnormalmaintenancechecks.
FUNCTIONAL PARTS
Refer to the unit Parts Catalog for a list of functional parts. Parts
are available from your distributor.

14
APPENDIX A BLOWER PERFORMANCE DATA
BELT DRIVE - STANDARD
NOTES:
High static airflow requires installation of high static kit.
Unit factory shipped with sheave set at 2.5 turns open.
Air flow table represent dry coil with filters installed; SCFM correction factor for wet coil is 4%.
CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP
0.2 --- --- --- --- --- --- --- --- --- --- 7203 2.18 6718 1.94
0.4 --- --- --- --- --- --- 7306 2.54 6777 2.14 6257 1.80 5711 1.66
0.6 --- --- 7477 2.97 6899 2.51 6323 2.10 5716 1.72 5103 1.39 ---
0.8 7112 2.96 6467 2.46 5795 2.01 5101 1.61 --- --- --- --- --- ---
1.0 5983 2.38 5190 1.89 --- --- --- --- --- --- --- --- --- ---
1.2 4426 1.71 --- --- --- --- --- --- --- --- --- --- --- ---
CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP CFM BHP
0.2 --- --- --- --- --- --- --- --- --- --- --- --- 9664 4.05
0.4 --- --- --- --- --- --- --- --- 9570 4.08 9197 3.82 8702 3.51
0.6 --- --- --- --- --- --- 9038 3.82 8460 3.46 7949 3.14 --- ---
0.8 --- --- 8171 2.93 7630 3.70 7068 2.79 --- --- --- --- --- ---
1.0 --- --- 7901 2.85 7203 3.42 --- --- --- --- --- --- --- ---
1.2 7344 4.35 --- --- --- --- --- --- --- --- --- --- --- ---
DCC240 STANDARD BELT DRIVE (includes 2 speed models at high speed)
ESP, In H
2
O
TURNS OPEN
0123456
DCC180 STANDARD BELT DRIVE (includes 2 speed models at high speed)
ESP, In H
2
OTURNS OPEN
0123456

15
APPENDIX B ELECTRICAL DATA
ATTENTION INSTALLING PERSONNEL
Use only the heater kit specified for each model as dictated by the table above.
NOTE: See unit nameplate for proper overcurrent protection.
When using electric heat kit, use of the single point kit installed in the unit is required to meet UL requirements
MIN MAX Qty RLA LRA Qty HP RLA HP FLA HP FLA
208/230-60-3 187 253 2 25.0 164.0 3 1/3 2.40 BD STD STATIC 3.0 9.2 3.0 9.1
460-60-3 414 506 2 12.2 100.0 3 1/3 1.20 BDSTD STATIC 3.0 4.6 3.0 4.3
575-60-3 518 633 2 9.0 78.0 3 1/3 0.90 BDSTDSTATIC 3.0 4.2 3.0 3.5
2-SPEED
ID FAN MOTOR
ELECTRICAL DATA
MODELS
15 TON
COMPRESSOR (ea) ID MOTOR
APPL
OD FAN MOTORS (ea) ID FAN MOTOR
VOLTAGE
LIMITATIONS
VOLTAGE
(NAMEPLATE)
MIN MAX Qty RLA LRA Qty HP RLA HP FLA HP FLA
208/230-60-3 187 253 2 33.3 239.0 3 1/3 2.40 BD STD STATIC 5.0 12.7 5.0 14.0
460-60-3 414 506 2 17.9 125.0 3 1/3 1.20 BD STD STATIC 5.0 6.4 5.0 6.6
575-60-3 518 633 2 12.8 80.0 3 1/3 0.90 BD STD STATIC 5.0 5.1 5.0 5.2
2-SPEED
ID FAN MOTOR
ELECTRICAL DATA
20 TON
ID MOTOR APPL
COMPRESSOR (ea) OD FAN MOTORS (ea) ID FAN MOTOR
VOLTAGE
LIMITATIONS
VOLTAGE
(NAMEPLATE)
MODELS
UNIT HEATERKIT
MODELNUMBER MINIMUM CFM Downshot HEATERKIT MODEL NUMBER MINIMUMCFM Downshot HEATERKIT MODELNUMBER MINIMUMCFM Downshot
EHK3-31 5250 EHK4-31 5250 EHK7-31 5250
15 TON EHK3-46 5250 EHK4-46 5250 EHK7-46 5250
EHK3-60 5250 EHK4-60 5250 EHK7-60 5250
EHK3-31 7000 EHK4-31 7000 EHK7-31 7000
20 TON EHK3-46 7000 EHK4-46 7000 EHK7-46 7000
EHK3-60 7000 EHK4-60 7000 EHK7-60 7000
EHK3-75 7000 EHK4-75 7000 EHK7-75 7000
MINIMUM AIRFLOW FOR ELECTRIC HEAT

16
APPENDIX C UNIT DIMENSIONS
B
C
D
AB
C
D
A
Model A BCD
15Ton
20Ton 133-1/2" 88-7/32" 50-9/32" 5-5/32"
VERTICAL DISCHARGE (TOP VIEW)
21” 60”
7”
48”
22”
© 2013
5151 San Felipe St., Suite 500, Houston, TX 77056
www.daikincomfort.com

IM 1216 ©2014 Daikin Applied (01/14) | (800) 432–1342 | www.DaikinApplied.com
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