Daikin 90 Plus AFUE Guide

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90PlusAFUEFurnace
Install&Commissioning
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ParticipantGuide

1
©2014DaikinNorthAmerica,LLC
90PlusAFUEFurnaceI&C
©2014DaikinNorthAmerica,LLC
Suspension,Leveling,Filters,ReturnOptions
CondensateDrainTrap,DrainPan,andLines
HorizontalRightSideDown
HorizontalLeftSideDown
Venting
GasValveandConnections
ElectricalConnections
24VoltThermostatWiring
ComfortNet
FurnaceStartUp
Temp eratureRiseandBlowerSpeedAdjust
DuctStatic
Agenda

2
©2014DaikinNorthAmerica,LLC
Thenew90PlusAFUEFurnacecanbeinstalledinanupflow,downflow,
orhorizontalleftorrightapplications.
Daikin90PlusAFUEFurnaceInstallation
Horizontal
Right
Upflow
Downflow Horizontal
Right
Horizontal
Left
Horizontal
Left
©2014DaikinNorthAmerica,LLC
Suspensionfrom
raftersorjoists
Use3/8threaded
rod
2”x2”x1/8”angle
iron
Crawlspace
installation
Suspendedfrom
floorjoists
Supportedby
concretepad
Neverinstallon
groundunderhome,
asitcouldbeexposed
towater
FurnaceSuspension

3
©2014DaikinNorthAmerica,LLC
FurnaceLeveling
Levelingensures
propercondensate
drainagefromthe
heatexchangerand
inducerdraftblower.
Levellengthwise
fromend‐to‐endfor
properfluepipe
drainage.
Levelend‐to‐end
©2014DaikinNorthAmerica,LLC
FurnaceLeveling
Installthefurnace
withaslighttiltfrom
backtofrontwiththe
accessdoorsdownhill
fromthebackpanel.
Tiltapproximately1/2
to3/4inches.
Allowsthecondensate
fromthesecondary
heatexchangertoflow
forwardtothe
recuperator coilfront
cover,andintodrain
trap.

4
©2014DaikinNorthAmerica,LLC
AirFilterLocations
Dependingontheinstallationand/orcustomerpreference,differing
filterarrangementscanbeapplied.
AirFlow
AirFlow
FILTER
FILTER
FILTER
Filter
Access
Door
PossibleUprightUpflow
PossibleUprightCounterflow
FilterLocations
Central
Return
Grille
Central
Return
Grille
SideReturnExternalFilterRackKit
©2014DaikinNorthAmerica,LLC
AirFilters
Filtersmustbeusedwiththis
furnace.
Filters arenotshippedwiththis
furnace,butmustbeprovided,
sized,andinstalledexternallyby
theinstaller.
Ifthefurnaceisinstalledwithout
filters,thewarrantywillbe
voided.
NOTE:Changefiltersbefore
occupantstakeownershipofa
newhome!
FilterSizingChart
Model MinimumFilterSize
DM96VC0403B 20x24
DM96VC0603B 20x25
DM96VC0803B 18x36
DM96VC0804C 24x30
DM96VC1005C 24x36
DM96VC1205D 2(20x25)
DC96VC0403B 20x24
DC96VC0603B 20x25
DC96VC0804C 18x36
DC96VC1005C 24x30
DC96VC1205D 2(20x25)
(Basedon300ft/minfilterfacevelocity)

5
©2014DaikinNorthAmerica,LLC
BottomReturnAirOpening
Thebottomreturnairopeningon
upflow modelsutilizea“lance
andcut”methodtoremove
sheetmetal fromtheduct
openinginthebasepan.
Unfoldtheductflangesaround
theperimeteroftheopening
usingapairofseamer pliersor
seamer tongs.
WARNING:Sharpedges.Gloves
required.
©2014DaikinNorthAmerica,LLC
BottomReturnAirOpening
Airflowareawillbereducedbyapproximately18%ifductflangesarenot
“unfolded”.Thiscouldcauseperformanceissuesandnoiseissues.
PressOutbyHand
ScribeLinesOutlining
DuctFlanges
CutUsingTinSnips
CutFourCornersAfter
RemovingSheetMetal

6
©2014DaikinNorthAmerica,LLC
SideReturnAirOpening
Onupflow units,“guidedimples”
locatethesidereturncutout
locations.
Useastraightedgetoscribelines
thatwillconnectthedimples
beforecuttingyouropening.
NOTE: Anundersizedopeningwill
causedreducedairflow.
©2014DaikinNorthAmerica,LLC
Suspension,Leveling,Filters,ReturnOptions
CondensateDrainTrap,DrainPan,andLines
HorizontalRightSideDown
HorizontalLeftSideDown
Venting
GasValveandConnections
ElectricalConnections
24VoltThermostatWiring
ComfortNet
FurnaceStartUp
Temp eratureRiseandBlowerSpeedAdjust
DuctStatic
Agenda

7
©2014DaikinNorthAmerica,LLC
DrainPan,Trap,andLines
An“auxiliary”drain
panmustbeinstalled
underthefurnaceif
it’sbeinginstalled
overaconditioned
space.
Mustcovertheentire
areaunderthe
furnace.
Secondary
containmentfortrap.
Underfurnaceand
evaporatorcoilwhen
applicable.
©2014DaikinNorthAmerica,LLC
DrainPan,Trap,andLines
Condensatedraintrap
issecuredtofurnace
sidepanelsin
horizontal
applications.
Aminimumclearance
of5.5”belowthe
furnacemustbe
providedfortrap
installation.
9”(Min5.5”)

8
©2014DaikinNorthAmerica,LLC
DrainPan,Trap,andLines
Thedraintrapmustbeprimed
priortofurnacestartup.
Fillbothsidesofthedraintrap
withwater.
Importanceofdraintrappriming:
Ensuresproperfurnacedrainage
uponstartup
Prohibitsthepossibilitiesofflue
gasesescapingthroughthedrain
system.
©2014DaikinNorthAmerica,LLC
DrainTrapInstalledinVerticalUpflow Furnace
DrainExitingLeftSide DrainExitingRightSide

9
©2014DaikinNorthAmerica,LLC
Suspension,Leveling,Filters,ReturnOptions
CondensateDrainTrap,DrainPan,andLines
HorizontalRightSideDown
HorizontalLeftSideDown
Venting
GasValveandConnections
ElectricalConnections
24VoltThermostatWiring
ComfortNet
FurnaceStartUp
Temp eratureRiseandBlowerSpeedAdjust
DuctStatic
Agenda
©2014DaikinNorthAmerica,LLC
Video

10
©2014DaikinNorthAmerica,LLC
HorizontalRightSideDown
Allfurnacemodelsareshippedwitha
factoryinstalleddraintrapforvertical
installations.
Horizontalinstallsrequirethetraptobe
relocated.
Twoconversionsbeingcoveredinthis
periodofinstruction:
Upflow modelinstalledhorizontallywith
rightsidedown.
Upflow modelinstalledhorizontallywith
leftsidedown.
CondensateDrainTrapConversion
©2014DaikinNorthAmerica,LLC
Removetheclamps
frombothendsof
thedrainhoses.
Removethetwo
screwsholdingthe
draintraptothe
blowerdeck.
Removethetrap
andtwohosesfrom
theblowerdeck.
HorizontalRightSideDown
Remove
Clamp
Remove
Screw
Remove
Screw
Remove
Clamp

11
©2014DaikinNorthAmerica,LLC
HorizontalRightSideDown
Removethetwo
plugsfromtheright
sideofthecabinet
andinstallthemin
theblowerdeck.
Locatehose#5and
cutatline“C”.
Installthecutend
ofhose#5from
outsideofthe
cabinetthroughthe
cabinetdrainhole
nearestthetopof
thefurnace.
Cut“C”
Remove
Plugs
©2014DaikinNorthAmerica,LLC
HorizontalRightSideDown
Securehose#5to
thebarbedfittingin
theelbowwitha
redclamp.
Installthe“non‐
grommet”endof
hose#11fromthe
outsideofthe
cabinetthroughthe
bottomdrainhole.
Installoncollector
boxandsecurewith
asilverclamp.
Securew/
clamp
Secure
hose#5
Install
hose#11

12
©2014DaikinNorthAmerica,LLC
HorizontalRightSideDown
Usetwosilverclampsand secureboth
hosestothedraintrap.
Thetrapoutletfacesthefrontofthe
furnace.
Securethetraptothecabinetusingthe
twooriginalscrewsremovedfromthe
blowerdeckintheearliersteps.
Refertothe“FieldSuppliedDrain”
sectioninthemanualforinstructionson
fieldsupplied/installeddrainonoutletof
furnacetrap.
Secure
draintrap
©2014DaikinNorthAmerica,LLC
Suspension,Leveling,Filters,ReturnOptions
CondensateDrainTrap,DrainPan,andLines
HorizontalRightSideDown
HorizontalLeftSideDown
Venting
GasValveandConnections
ElectricalConnections
24VoltThermostatWiring
ComfortNet
FurnaceStartUp
Temp eratureRiseandBlowerSpeedAdjust
DuctStatic
Agenda

13
©2014DaikinNorthAmerica,LLC
FrontCoverPressureTube(Relocating)
Relocatepressuretube
tolowercollectorbox
portwhen:
Upflow modelis
installedhorizontal
leftsidedown.
Downflow modelis
installedhorizontal
rightsidedown.
Pressure
Tube
©2014DaikinNorthAmerica,LLC
FrontCoverPressureSwitchTube
Step1
Removefactory
installed6”square
tubingthatconnects
thefrontcover
pressureswitch,and
thetopcollectorbox
coverport.
Remove
tube

14
©2014DaikinNorthAmerica,LLC
FrontCoverPressureSwitchTube
Step2
Removerubberplug
fromthebottom
collectorboxport.
Remove
Plug
©2014DaikinNorthAmerica,LLC
FrontCoverPressureSwitchTube
Step3
Installrubberplug
ontopcollectorbox
port.
PlugTopCollector
BoxPort

15
©2014DaikinNorthAmerica,LLC
FrontCoverPressureSwitchTube
Step4
Locatethe24”x¼”
squaretubeinparts/
“drainassemblybag”
thatisshippedwith
furnace.
Installoneendon
thefrontcover
pressureswitch,and
theotherendonto
thebottom/lower
collectorboxport.
Attachtolower
collectorboxport
©2014DaikinNorthAmerica,LLC
FrontCoverPressureSwitchTube
Step5
Cutoffaccess
tubing,andtuck
accesshoseintothe
furnace
compartmentclose
totheinducerdraft
motor.

16
©2014DaikinNorthAmerica,LLC
HorizontalLeftSideDown
Removethehoseclamps,two
screwsthatholdthetraponto
blowerdeckinpriorprocedure.
Removethetwoplugsfromthe
leftsideofthecabinetandre‐
installintheblowerdeck.
Locatehose#6.Measuringfrom
thenon‐grommetend,cutoff
anddiscard:
Hose#6
1½“fora
“D”width
cabinet
8½“fora
“B”width
cabinet
5”fora
“C”width
cabinet
©2014DaikinNorthAmerica,LLC
D M 97 M C 080 3 B N A A
1 2 3 4 5 6 7 8 9 10 11 12 13 14
Brand MinorRevision
D‐ Daikin A‐ InitialRelease
B‐ 1stRevision
Configuration
M‐ Upflow/Horizontal
C‐ Downflow/Horizontal MajorRevision
A‐ InitialRelease
AFUE B‐ 1stRevision
97‐ 97%AFUE
GasValve NOx
M‐ Modulating N‐ LowNOx
V‐ 2Stage
H‐ Convertible2Stage
S‐ SingleStage CabinetWidth
A‐ 14"
Motor B‐ 17.5"
C‐ VariableSpeedECM/ComfortNet C‐ 21"
E‐ Multi‐SpeedECMD‐ 24.5"
S‐ SingleSpeed
MBTU/h MaximumCFM
040‐ 40,000BTU/h 2‐ 800CFM
120‐ 120,000BTU/h 3‐ 1200CFM
4‐ 1600CFM
5‐ 2000CFM
FurnaceCabinetDimensions
Lookatmodelnumberofyourfurnace.(11th place)

17
©2014DaikinNorthAmerica,LLC
HorizontalLeftSideDown
Removetherubber
plugfromthevent‐
drainelbowside
port.
Remove
Plug
©2014DaikinNorthAmerica,LLC
HorizontalLeftSideDown
Placehose#6onthe
vent‐drainelbow
sideportandsecure
withasilverclamp.
Removeblackdrain
capnearthelower
collectorboxport,
andplaceonbarbed
fitting.
Securewithared
clamp.
Attachtovent‐drain
elbowsideport
Blackcap
securedwith
redclamp

18
©2014DaikinNorthAmerica,LLC
HorizontalLeftSideDown
Locatehose#5andcut
3”fromthenon‐
grommetend.
Insertthecutendof
hose#5throughthe
lowercabinetdrainhole
furthestfromthetopof
thefurnace.(insertfrom
theoutsideofcabinetin)
Connecthose#5&#6
usingthe100degree
elbow,(indrainassembly
bag)andsecurewithtwo
redclamps.
Cut3”fromthenon‐
gromett end
100degree
elbow
©2014DaikinNorthAmerica,LLC
HorizontalLeftSideDown
Drainthecollector
box.
Installthenon‐
grommetendofhose
#11fromtheinsideof
thecabinet,intothe
cabinetholeclosestto
thetop/airdischarge
endofthefurnace.
Installoncollectorbox
andsecurewithasilver
clamp.
Usetwosilverclamps
andsecurethehoses
tothedraintrap.

19
©2014DaikinNorthAmerica,LLC
Suspension,Leveling,Filters,ReturnOptions
CondensateDrainTrap,DrainPan,andLines
HorizontalRightSideDown
HorizontalLeftSideDown
Venting
GasValveandConnections
ElectricalConnections
24VoltThermostatWiring
ComfortNet
FurnaceStartUp
Temp eratureRiseandBlowerSpeedAdjust
DuctStatic
Agenda
©2014DaikinNorthAmerica,LLC
Allfurnacesaredualcertified,and
builtwitha2”vent/intakepipe
andconnectors.
Transitioningfrom2”to3”PVC
pipeshouldbedoneascloseto
thefurnaceaspossible.
DonotconnecttoTypeB,BW,or
Lventoranyventconnector.
(metal)
Mustnotbeventedtoany
portionofafactorybuilt,or
masonrychimney exceptwhen
usedasapathwayforPVCtopass
through.
DirectorNon‐DirectVenting