York YCIV User Manual

JOHNSON CONTROLS
FORM 201.23-EG2 (713)
5
• Discharge line provided with manual compressor
shutoffservicevalve(SeeOptionsandAccessoriesfor
suctionlinevalve).Suctionlineequippedwithclosed-
cellinsulation.
• Insulatedexternaloilseparatorswithnomovingparts,
31barg(450psig)designworkingpressure,andUL
listing. Refrigerant system differential pressure pro-
videsoilowthroughservicereplaceable,0.5micron,
fullow,cartridgetypeoillterinternaltocompressor.
• Oilcoolingisprovidedbyadedicatedair-coolednned-
tubetypeheatexchangerlocatedinthecondenser
sectionofthemachine.
• A ash tank is located in each refrigerant circuit to
increase the system efciency. The design working
pressureis31barg(450psig).
• Suctionlines,oilseparatorsandashtanksarecov-
eredwithclosed-cellinsulation.
EVAPORATOR
• Highefciency,direct-expansiontypecoolerwithre-
frigerantintubesandchilledliquidthroughthebafed
shell.Independentcircuitsprovidedforeachcompres-
sor.
• Designworkingpressureoftheshellwatersideis10.3
barg(150psig),and16barg(235psig)fortherefrig-
erantside.Theevaporatorisconstructedandtested
IAW applicable sections ofASME Pressure Vessel
Code,SectionVIII, Division (1). Waterside exempt
perparagraphU-1,©,(6).
• Removable heads allow access to the internally-
enhanced,seamless,coppertubes.Waterventand
drainconnectionsarealsoincluded.
• The evaporator is equipped with a thermostatically
controlledheaterforprotectionto-29°C(-20°F)am-
bient,andshelliscoveredwith19mm(3/4”),exible,
closed-cell insulation, thermal conductivity of 0.26k
maximum.38mm(1-1/2")foamavailableasanoption.
• Water nozzles have grooves for mechanical (ANSI/
AWWA C-606) couplings,andshallbe insulated by
Contractorafterpipeinstallation.(SeetheAccessories
andOptionssectionforangeoptions.
CONDENSER SECTION
• Condenser fans are dynamically and statically bal-
anced, direct-drive, corrosion resistant glass ber
reinforcedcompositebladesmoldedintoalownoise,
fullairfoilcrosssection,providingverticalairdischarge
fromextendedorices.Guardsofheavygauge,PVC
(polyvinylchloride)coated.
• Standard and reduced sound level models have
condensersttedwithsingle-speedfans.Lowsound
modelshavetwo-speedfanstted.
• Thefanmotorsarethehighefciency,directdrive,6
poleonstandardsoundmodelsand8poleonreduced
and low sound models, 3 phase, Class-“F”, current
overloadprotected,totallyenclosed(TEAO)typewith
doublesealed,permanentlylubricated,ballbearings
• Finandtubecondensercoilsconstructedofseamless,
internallyenhanced,highcondensingcoefcient,cor-
rosionresistantcoppertubesarrangedinstaggered
rowsandmechanicallybondedtocorrosionresistant
alu-minumalloynswithfullheightncollars.Design
workingpressureis31barg(450psig).
MICROCOMPUTER CONTROL CENTER
• Themicrocomputercontrolcenterprovidesautomatic
controlofchilleroperationincludingcompressorstart/
stopandload/unload,anti-recycletimers,condenser
fans,evaporatorpump,evaporatorheater,unitalarm
contactsandrunsignalcontacts.
• Chillerautomaticallyresetstonormalchilleroperation
afterpowerfailure.
• Unit operating software is stored in non-volatile
memory.Fieldprogrammablesetpointsareretained
inlithiumbatterybackedregulatedtimeclock(RTC)
memoryforminimum5years.
• Alarmcontactsareprovidedtoremotealertcontacts
foranyunitorsystemsafetyfault.
• DisplayandKeypad:
♦ Thedisplaycontainsan80characterliquidcrystal
displaythatisbothviewableindirectsunlightand
hasLEDbacklightingfornighttimeviewing.One
keypadanddisplay panelisprovidedwithevery
chiller.
♦ Displayandkeypadisaccessiblethroughdisplay
accessdoorwithoutopeningmaincontrol/electrical
cabinetdoors.
♦ Display provides unit setpoints, status, electrical
data,temperaturedata,pressures,safetylockouts
anddiagnosticswithouttheuseofacodeddisplay.
♦ The display provides descriptions in English (or
availablelanguageoptions),numericdatainEng-
lish(orMetric)units.
♦ SealedkeypadshallincludeunitOn/Offswitch.
• ProgrammableSetpoints(withinManufacturerlimits):
displaylanguage;leavingchilledliquidtemperature:
setpoint,controlrange;localorremotecontrol;unitsof
measure;compressorlead/lag;andmaximumchilled
watersetpointresettemperaturerange.
• DisplayData:Chillerliquidreturnandleavingtempera-
tures,ambient,leadcompressoridentication,clock
and schedule, (variable) out of range, remote input
indication, chilled liquid reset setpoint, and history

York YCIV Specifications

General

Brand	York
Model	YCIV
Category	Chiller
Language	English