Conair MPW Uživatelská příručka stáhnout pdf (Strana 23)



Corporate Office: 724.584.5500  Instant Access 24/7 (Parts and Service): 800.458.1960  Parts and Service: 814.437.6861

18



SystemFluidFreezeProtection

Forapplicationswheresystemfluidwillbeexposedtoambientconditionsof32°F(0°C)or

colderand/orthesetpointofthesystemwillbebelow45°F(7.2°C),antifreezemustbeadded

tothesystemfluidtoprotectthechillerandsystempipingfrompotentialdamage.Theamount

ofantifreezewillvarydependingontheactualdesiredoperatingconditionsandshouldbe

enoughtoprovidefreezeprotectiontotemperatures15°F(8.3°C)colderthanthecoldest

temperatureanticipated.Useonlyantifreezesolutionsdesignedforheatexchangerduty.Do

notuseautomotiveantifreezeduetothepotentialforfoulingthatcanoccuronceitsrelatively

short‐livedinhibitorsbreakdown.

InterconnectingRefrigerantPiping(EP2RModelsOnly)

Thechillerisshippedwithanitrogenholdingchargeandhasafullchargeofoil,excludingthe

additionalchargeforfieldpiping.Properevacuationisrequiredpriortochargingwith

refrigerant.Thechillerisforuseonlywiththeair‐cooledcondenserprovidedwiththeunit.The

followingsectioncoverstherequiredpipingbetweenthechillerandtheprovidedair‐cooled

condenser.



Capsarelocatedonthedischargeandliquidlines.Theselinesizesdonotnecessarilyreflectthe

actuallinesizesrequiredforthepipingbetweenthechillerandtheair‐cooledcondenser.The

installingcontractorneedonlyprovidetheinterconnectingpipingbetweenthechillerandthe

air‐cooledcondenser.



Refrigerantpipingsizeandpipingdesignhasasignificanteffectonsystemperformanceand

reliability.Forspecificpipesizingandconfiguration,refertotheEP2RSeriesChillerRemoteAir‐

CooledCondenserInstallationGuidelinesManual.Allpipingshouldconformtotheapplicable

localandstatecodes.Userefrigerantgradecoppertubingonlyandisolatetherefrigeration

linesfrombuildingstructurestopreventtransferofvibration.Donotuseasawtoremoveend

caps.Thismightallowcopperchipstocontaminatethesystem.Useatubecutterorheatto

remove

thecaps.Whensweatingcopperjointsitisimportanttoflowdrynitrogenthroughthe

system.Thispreventsscaleformation.Donotusesoftsolders.Forcopper‐to‐copperjointsuse

aphos‐coppersolderwith6%to8%silvercontent.Useahighsilvercontentbrazingrodfor

copper‐to‐brassorcopper‐to‐steeljoints.Onlyuseoxy‐acetylenebrazing.

 

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 59 60

Žádné komentáře

Conair MPW Uživatelská příručka Strana 23