Robinair R1234yf User Manual download pdf (Page 28)

Operating Instructions — System Flush

WARNING: Do NOT disconnect

service couplers during the ushing

process. Refrigerant could spray out of

the ttings, and exposure may cause

personal injury.

7.Conguretheblockconnectorstoprovideforward-

orback-ushingoftherefrigerant,whichowsfrom

themachinethroughtheredhigh-sideconnection

hose.Opentheredservicecoupler.

8.Connectthelterhousingtothedesiredreturnside

oftheadapterblockandtothebluelow-sidehose.

Opentheblueservicecoupler.

9.Verifythataushinglteriscorrectlyinstalledinthe

ushinglterhousing.Opentheisolationvalveon

thehose.

Operating Instructions

1.SelectSYSTEM FLUSHfromtheRRRmenu.See

Figure11.

2.ThemachinedisplaysaVINentryscreen.Tostore

vehicleservicedatabyVIN,usethearrowkeys

toselectaeld,usethevirtualkeypadtoenter

information,andpressOK.

EnteringaVINisoptional;pressOKtoskipthisstep

andnotactivatetheStoredDatafeature.

3.SelectSTART toacceptthedefaultushtimeof10

minutes,orenterthedesiredushtimeusingthe

keypadandselectSTART.

4.Thevacuumpumprunsforveminutestoremove

airfromtheA/Csystem,ifneeded.

Themachineushesthesystemforthedesignated

lengthoftime,andthenentersarecoverymode.

6.

Oilthathasbeencollecteddrainsintothegraduated

oildrainbottle.Removethebottleandmeasureoil.

 Disposeofoilaccordingtothelawsinyour

jurisdiction.Itistheresponsibilityoftheuserto

determineifamaterialisahazardouswasteatthe

timeofdisposal.

7.

WhenthemachinedisplaysFLUSHCOMPLETE,close

servicecouplers,removehoses,andreassemblethe

vehicle’sA/Csystemtoitsoriginalstate.

8.Openthevalveonthesourcetank.

9.Evacuateandrechargethevehicleaccordingtothe

instructionsinthismanual.

Operating Tips

If the external ushing lter is plugged, the

unit displays

SYSTEMFLUSH

POSSIBLECLOGGEDFLUSHFILTER

ORCLOSEDCOUPLERVALVE

ESCTORECOVERREFRIGERANT

PRESSOKTORETRY

After the lter is cleared or replaced, restart

System Flush from the menu shown in

Figure 11.

CAUTION: To prevent vehicle damage, use an

oil inject tool to replace the system oil. Flushing

removes all oil from the system except what

remains in the compressor.

Recovery

Vacuum

Charge

Automatic

Esc

Figure 11

The RRR Menu

Diagnostic Pressures

System Flush

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 ... 49 50

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Robinair R1234yf User Manual Page 28

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