Howe 2000-RLE - Evaporator Pressure Setting

StartUp&Operation
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17
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EvaporatorPressureSetting
Model Temperature R‐404A
1000‐RLE 0°F 33PSI
2000‐RLE‐5°F 28PSI
3000‐RLE‐5°F 28PSI
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EvaporatorPressureRegulator(EPR)
TheEPRwillholdthesuctiontemperatureat
theproperlevel,allowingforminor
adjustmentstobemadeusingtheThermostatic
ExpansionValve(TXV).
Eventhoughthesuctiontemperatureatthe
Evaporatoriscorrect,theTXVmaystillbe
underfeedingoroverfeeding.
AllEPRsareshipped
looseandmustbefield
installed.TheEPRshouldideallybelocated
within2feetoftheIceFlaker.
ToreadEPRsettinginstallservicemanifoldat
thePressureTapoftheEvaporatororatthe
inletoftheEPR.
ForAngleStyleEPR,removeendcapandadjust
usinga
1/4"hexwrench.
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Toincreasethepressuresetting,rotate
clockwise.
Todecreasethepressuresetting,rotate
counter‐clockwise.
IfEPRfailstoregulatepressureproperly itmust
berepairedorreplaced.
ForGlobeStyleEPR,adjusttopstem.
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Toensureanaccuratesetting,itisimportantto
setthe
EPRwhentheambienttemperatureat
theCondensingUnitis10°Fbelowthe
maximumratedambienttemperature.