Name: AERMEC Variable Multi Flow ANL 580
Brand: AERMEC
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18.03. 5719210_03

ANL / 290-650

to(U)phase,(N)neutral,(PE)earthinthecase

ofsinglephaseunits(230V/50Hz),

8. U-V-Wforphases,NforneutralandPE

forearthinthecaseofthreephaseunits

(400V/3N/50Hz).

9. Replacetheinspeconpanels.

10. Ensurethatallproteconremovedfortheelec-

tricalconneconarereplacedbeforepowering

theunit.

11. Placethemainisolator(externaltotheunit)

to“ON”.

 

 

Itisremindedthatforunitsofthisseries,ifrequested

bytheAermecclientorthelegalownerandonly

onITALIANterritory,freestart-upisprovidedbythe

regionalAermectechnicalassistanceservice.The

start-upmustbepreviouslyagreedbasedonthe

intendedmeofcompleonofinstallaon.Beforethe

start-upalltheworks(electricalandhydraulicconnec-

ons,llingandvenngofairinthesystem)mustbe

completed.

 

 



:

1. Allsafetyprecauonshavebeenfollowed.

2. Theunithasbeenappropriatelyxedtothe

supportbase.

3. Minimumclearancespaceshavebeenob-

served.

4. Powersupplycablesarecorrectlysizedandca-

pableofsupporngtheelectricalrequirements

oftheunit(seesecononelectricaldata)and

thattheunitiscorrectlyearthed.

5. Allelectricalconneconsarecorrectlytermi-

natedandghtened.

 

1. Applypowertotheunitbyturningthemainiso-

latortotheONposition.Thedisplaywillpower

upafterseveralsecondsafterapplyingpower,

checkthattheoperatingstatusisonOFF(OFFBY

KEYBonthelowerpartofthedisplay).

2. Checkwithatesterthatthepowersupplyvolt-

agesonthephasesU-V-Ware400V±10%,check

thatthephaseimbalanceisnotgreaterthan3%.

3. Checkthattheconnectionsmadebytheinstaller

complywiththedocumentation.

4. Checkthatthecompressorcrankcaseheater(s)

areoperatingbymeasuringtheincreaseofoil

sumptemperature.Theheater(s)mustbein

operationforatleast24hoursbeforestarting

thecompressor,andinallcasesthesumpoil

temperaturemustbe10-15Kaboveambient

temperature.

 

1. Checkthatallhydraulicconnectionshavebeen

correctlyinstalled,thattheinstructionsonthe

labelshavebeenfollowed,andthatamechani-

calfilterhasbeeninstalledontheinlettothe

evaporator.(Mandatorycomponentotherwise

thewarrantywillbevoided).

2. Confirmthatthepump(s)areoperatingandthat

theflowrateissufficienttomakethecontacton

theflowswitch.

3. Checkthewaterflowratebymeasuringthe

differentialpressureacrosstheevaporatorinlet

andoutletandcalculatingtheflowfromthe

evaporatorpressuredropdiagramprovidedin

thedocumentation.

4. Checkthecorrectfunctioningofanyflow

switchinstalled;closetheisolatingvalveonthe

evaporatoroutletandobservetheresultonthe

unitdisplaypanel;openthevalveandresetthe

flowtripalarm.

 

Afterhavingrigorouslyfollowedtheabovechecksitis

possibletostarttheunit:

1. Closetheelectricalpanel.

2. TurnthemainisolatortoON.

3. PressthekeyON for3secondstostartthe

unit.

PressingthekeyON displaysthewater

temperatureandtheoperatingmodeoftheunit.

Checktheoperatingsetpointparametersand

resetanyalarmspresent.Afterafewminutes

theunitwillstart.

 

 

 

- Thatthecompressorinputcurrentofthecompres-

sorsislessthanthatindicatedinthetableofelectri-

caldata.

- Thatinthreephasemodelsthecompressornoiseis

notabnormal,indicatingareverserotation.Inthis

casereverseoneofthephases.

- Thatthevoltagevaluesarewithinthedetermined

limitsandthatthephaseimbalance(threephase

power)islessthan3%.

- Presenceofanyrefrigerantleaks,inparcular

fromconneconstogauges,pressuretransducers

andpressostats.(Vibraonsduringtransportaon

mayhaveloosenedconnecons).

- Superheat

 Comparethecompressorsuctiontemperaturewith

acontacttemperaturesensorreadingwiththe

temperatureofthelowpressuregauge(saturated

suctiontemperaturecorrespondingtotheevaporat-

ingpressure).Thedifferencebetweenthesetwo

temperaturesisthesuperheatvalue.Theoptimal

valuesarebetween4and8K.

-  D i sc h arg e te m pe r a tu r e 

Ifthevaluesofsub-coolingandsuperheatare

normalthetemperaturemeasuredinthedischarge

linefromthecompressormustbe30/40Kabove

thecondensingtemperature.

 

:

- Themanualhighpressurepressostat,whichstops

thecompressorandgeneratesandalarmwhenthe

dischargepressureexceedsthepresetvalue.The

correctoperationischeckedbyclosingtherefriger-

antisolatingvalvetotheheatexchanger(incooling

mode)andkeepingacheckonthehighpressure