Trane XL19i-APG02-EN Benutzerhandbuch

Application Guide

XL19i-APG02-EN

Low Outdoor Operating Temperature

UnitMounting

MinimumClearances

RefrigerantPipingLimitations

Trane XL19iheat pumps and cooling units

ThepurposeofthisbulletinistoprovidecumulativeapplicationcriteriaasrelatedtotheTraneXL19i

coolingunitsandheatpumps.

Thisbulletindiscusses:

I. OffSeasonCoolingOperation

II. UnitMounting

III. MinimumOperatingClearances

IV. RefrigerantPipingLimitations

ISSUEDBY:

ProductTrainingandApplicationDepartment

Trane

Tyler,Texas Pg. 2

Section I - Off Season Cooling Operation

TheTraneXL19imaybeoperated in thecooling modeto 45oFas shipped fromthe factory.Theseunits

shallonly bematchedwithvariablespeedairhandling units andvariablespeedfurnace/coilcombinations.

Thecoilshavefactorysupplied non - bleedTXV’s

Pleaserefertotheaccessorytable below when determining iftheXL19iwilloperateatthe specified

conditionsaswellasrequiredaccessories.

ERUTAREPMETDO@SEIROSSECCADERIUQER

ledoM54

F04/03

i91LX deppihSsACDE toN devorppA

EvaporatorDefrostControlKits (EDC)

Pg.3

AY28X079-Coolingonly

AY28X084 -Heat pumps

TheTraneXL19iisfactorysuppliedwith compressor crankcase heat

CompressorCrankcaseHeaterKit- BAYCCHT

CompressorHardStartKits- BAYKSKT

XL19i’sarefactorysuppliedwith compressor startcomponents.

Typicalwiringwhenusingtheevaporatordefrost control (EDC) for operation asspecifiedon page 3.

CoolingSplitSystemandAY28X079EvaporatorDefrostControl

Red (R)

YLow

Green (G)

White(W1)

White(W2)

White(W3)

Blue (B)

Orange(O)

EDR-1

EDC

EDR

Red (R)

Ylow

Green (G)

White(W1)

White(W2)

White(W3)

Blue (B)

EDC

HeatPumpSplitSystem andAY28X084EvaporatorDefrostControl

2TTZ9 TWE-E Thermostat

TWE-E

Pg.4

Red

Yellow/Red

Yellow

Blue

Orange

Thermostat

XT500C

2TWZ9

This diagram indicates the correct wiring for the evaporator defrost control. Refer to the installation manual for complete control wiring.

SECTIONII- UnitMounting:

Thissection describes appropriate methods for mounting andsecuringtheXL19i.However,iftheseunits

areto be mounted ina regionwhere highwinds arean issue, pleaserefer totheTraneBAYECMT001

extremeconditions mountingkit.Ifseizmicrestraint isrequired,pleasereferlocalcode authority.This

applicationmayrequirealocal P.E.’sapprovalandstamp.

Whenmounting orsecuringtheTranecondensing unitsandheatpumpspleaseobservethe following.

1. Anytimethe unitistobesupportedfrom theedge,thesupportingmaterialshall extendminimumtwo

inchesundertheperimeteroftheunit’s base.

2. The mounting hole locations aremoldedinthebasepan,however,they must bedrilledthrough.

a)Holelocationsare identified on page6.

b)Holediameteris 5/16”

3. Washersshouldbe placed inbetween thefastenerhead and thebasepan.

4. Tranerecommendssupportingthecenteroftheunit.

5. Base 3 and4 pans have fourmounting holes.

Referto thedimensiontablesforactualunitsize.

Pleaserefertothefollowingillustrationsfordimensionsandgeneralinformation.

Drawingforillustrationpurposesonly.

Pg.5

BASEPANMOUNTINGHOLELOCATIONS

(location only,holes mustbe drilled)

support must extend 2” from the basepan perimeter

support center of unit

If supporting the base pan from the perimeter, the support must extend under the base pan at least 2”. Trane recom-

mends supporting the middle of the base pan with a cross member.

Pg. 6

Section III - Minimum Operating Clearances

Thissection discusses applying acondensingunit/heatpumpininstallationswherethere are space

constraints.

Theseconcernsmust be addressed:

1.SystemOperation - Adequate airflowmust beprovided to thecondensing unit /heat pumpin order

toenableappropriateheattransfer. If this is accomplished, head pressure will remainataneffective

operatingrange.

2.SystemServicability- Proper spacemust be allowed forHVACservicetechnicianto properly

maintainthe condensing unit / heat pump. Furthermore, space must be allowed for major component

changeoutintheeventof a failure.Workingspace is determinedby the National Electric Code

3.SpaceMaintenance - Appropriatearea mustbe allowedin ordermaintain theground areawhere the

unitsare positionedtoprohibitdebrisfromcollectingonthe panels, thusfurtherprovidingunobstructed

airflowtothecondensingunit.

4.State,Local Codes, andNational Codes shallprevail. Check withthe local jurisdictionbefore

installationtoassurecompliance.

Numerousprojectsrequire reduced clearancesbetween outdoor unitsand adjacent walls,fences andother

units.Theobstructioninquestionisusuallyoneofthefollowing:

1. Deck.

2.Oneormore walls of anadjacent building.

3.Fencesorbarriersprovided to reduce sound transmissionor visually screen the equipment.

4.Otheroutdoorunitsinamulti-unitinstallation.

5.Acombination of the above.

Theprimeconsiderationsinvolvedinestablishingminimumclearancesare:

1.Adequateairflowtothe outdoorcoilwithminimumrecirculation.

2.Service access tothe equipment.

3.Compliancewiththe National Electric Codeand other applicablecodes.

4.Designtemperature-Designtemperaturesgreaterthan105Frequireadditional consideration.

I.In order toassure thatadequate airflowreaches theXL19i condensingunit, sizefree airpassages at300

feetperminutevelocity(FPM).Seecondensingunitairflowperformanceonpage16of this document; or,

forthe mostcurrentinformation,consulttheunit’s productdatamanual.

II.The importance of providingproper service access toequipment cannot be overemphasized.The HVAC

servicetechnician’s job may beperformed with greater easeif adequate service spaceis allowed.

III.Knowledgeof the NationalElectric Codeand other applicablecodes forthe job sightlocation isa

necessityinorder to satisfy localinspectors.Thesecodes are inplace for serviceas well assafety.

IV.Besuretoread all provisions and footnotes containedinthis document.When ambient temperatures

exceed105F, morespace may be required forminimum operating clearances.

Pg. 7

A. Installationof singleXL19i unitundera deck.

1. SingleXL19iunits maybeinstalledunderadeckprovinding thefollowingcriteriaismet:

a) 3feetminimumtopclearanceisprovided.

b) 3feet away fromobstructionssuch as awall,or shrubbery ontwosides.

c) Theothertwo sides leftunobstructed.

d) Deckingmaterialoverhangingtheunit not to exceedtwofeet on two sides.

e) Servicability-Adequatespaceprovidedforannualserviceandmaintenance.NationalElectric

Code(NEC)requiresminimum3feetserviceclearanceforpersonnel safety.This distance may be

increasedundercertainconditions.PleaserefertothemostcurrenteditionoftheNationalElectric

Codefor more information.Page15of this documentcontainssomeNECinformation.

f) Condensingunitshallbeset onfirmfoundationindependent frombuildingstrucutre,not directly

ongroundsurface. (Photo below forillustration purposesonly)

g) Consultwithlocalbuildingdepartmenttoassuretheinstallationwillcomplywithlocalcode

beforeinstallingtheequipment.

Pg. 8

Illustrations provided to designate required clearances. Trane recommendeds mounting the unit on a pad

that is independent of the structure. Reference section III.A.1.F on pg 8 of this document.

3’ Minimum clearance from 2 sides of unit to walls

2’ feet maximum

overhang from

side of unit to deck.

3’ minimum

from top of

unit to deck

Outdoor Unit

SIDEVIEW

FrontView

3’ minimum from

side of unit to

wall of home

Outdoor Unit

2’ maximum

deck overhang

to side of unit

Illustrations provided to designate required clearances

Pg. 9

Wall of home

Patio Edge

Deck Edge

2’ Maximum overhang

from side of unit to

edge of deck

2’ Maximum overhang

from side of unit to

edge of deck

3’ Minimum Clearance

from side of unit to

wall of structure

Outdoor Unit

Outdoor wall

of home

Deck Edge

TOPVIEW

ISOMETRICVIEW

Pg. 10

Illustrations provided to designate required clearances. Trane recommendeds mounting the unit on a pad

that is independent of the structure. Reference section III.A.1.F on Pg 8 of this document.

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