IEC HPY 12 User Manual

FanCoils
INSTALLATION,OPERATION,&MAINTENANCEMANUAL
8
SECTIONONE—Receipt&InitialInstallation,Cont'd.
somelocationwhereanindicationofdrainowrestriction
maybereadilyobserved.Unitsfurnishedwitha“tell-tale”
connectionshouldbeslopedveryslightlytowardsthe
drainoutlets.The differential height of the trap inlet to
outlet must be at least one inch greater than the total
static pressure on the unit. The height from the drain
outlet to the bottom of the trap must not be less than
the total static pressure. The condensate drain hose
should be secured with a clamp after installing.
Ductwork Connections
Allductworkand/orsupplyandreturngrillesshould
beinstalledinaccordancewiththeprojectplansand
specications.Ifnotincludedontheunitorfurnishedfrom
thefactory,supplyandreturngrillesshouldbeprovidedas
recommendedintheproductcatalog.
Forunitswithnoreturn-airductwork,checklocalcode
requirementsforpossibleapplicationrestrictions.Allunits
mustbeinstalledinareasthatarenon-combustible.
Somemodelsaredesignedtobeconnectedtoduct-work
withaMINIMUMamountofexternalstaticpressure.
Theseunitsmaybedamagedbyoperationwithout
theproperductworkconnected.Consulttheapproved
submittalsandtheproductcatalogforunitexternalstatic
pressurelimitations.
Unitsprovidedwithoutsideairforventilationshouldhave
someformoflow-temperatureprotectiontopreventcoil
freeze-up.Thisprotectionmaybeanyofseveralmethods
suchasalow-temperaturethermostattoclosetheoutside
airdamperorapreheatcoiltotempertheoutsideair
beforeitreachestheunit.
Itshouldbenotedthatnoneofthesemethodswill
adequatelyprotectacoilintheeventofpowerfailure.
Thesafestmethodoffreezeprotectionistouseglycolin
theproperpercentsolutionforthecoldestexpectedair
temperature.
HorizontalplenumtypeCPYShortShipTime(SST)units
maybeshippedwithabottomreturn-airinlet.Theseunits
maybeconvertedtorearreturnbyremovingthebottom
inletlterretainerclipsandlter,thenremovingthe
plenumrearpanel.Therearpanelmustthenbemovedto
thebottomoftheunitandreversedsothatthetopedge
(whenrearmounted)istowardthesupplyendoftheunit
andreinstalledonthebottomoftheplenum.Thepanel
shouldbepositionedtowardsthedrainpantoexpose
theone-inchwidelterslotforunit-mountedlters.The
panelshouldbepositionedagainsttherearbottombrace
completelycoveringthebottomoftheplenumonunits
withremotelters.
Hi-Performanceplenum-typemodelsHPYSSTunitsmay
beshippedwithabottomreturn-airinlet.Theseunits
maybeconvertedtorearreturnbysimplyexchangingthe
bottomandrearplenumpanels.
Flexibleductconnectionsshouldbeusedonallair
handlingequipmenttominimizevibrationtransmissions.
Allductworkandinsulationshouldbeinstalledtoallow
properaccesstoallcomponentsforserviceandrepair
suchaslters,motor/blowerassemblies,etc.
The manufacturer assumes no responsibility for
undesirable system operation due to improper design,
equipment or component selection, and/or installation
of base unit, ductwork, grilles, and other related
components.
Electrical Connections
Theunitserialplateliststheunitelectricalcharacteristics
suchastherequiredsupplyvoltage,fanandheater
amperageandrequiredcircuitampacities.Theunitwiring
diagramshowsallunitandeldwiring.Sinceeachproject
isdifferentandeachunitonaprojectmaybedifferent,
theinstallermustbefamiliarwiththewiringdiagramand
serialplateontheunitBEFOREbeginninganywiring.
Allcomponentsfurnishedforeldinstallationbyeitherthe
factoryorthecontrolscontractorshouldbelocatedand
checkedforproperfunctionandcompatibility.Allinternal
componentsshouldbecheckedforshippingdamage,and
anylooseconnectionsshouldbetightenedtominimize
problemsduringstart-up.
Anydevicessuchasfanswitchesorthermostatsthat
havebeenfurnishedfromthefactoryforeldinstallation

IEC HPY 12 Specifications

General

Brand	IEC
Model	HPY 12
Category	Air Conditioner
Language	English