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32
Maintenance
Refrigerant Identier
Therefrigerantidentiersamplesrefrigerantgoing
intotheISVtoverifyitisR1234yfandthatitisnot
contaminated.Replacethesamplehoseassembly
duringeverylterchangeandalsoifpromptedby
anerrormessagesayingthehoseisclogged.See
Figure19.
7. Disconnecttheexistingsamplehoseassembly
betweenthesolenoidandtherefrigerantidentier,
andinstallanewsamplehoseassembly.
Note: If the lter is any color but white, the lter
needs to be replaced.
8. Pullthelteroutofthebracketswhileremovingthe
barbsfromtherubberconnectors.
9. Installanewlterwiththearrowpointingupward
asshown.Pushthelterbarbsintotherubber
connectors.
10.Installtheshroudonthemachineandswitchthe
powerON.
Magnet
Figure 20
Calibration Check
Thisfunctionisusedtoensurethemachine’sinternal
scaleisalwayscalibrated.Duringthistest,useonlythe
calibrationweightthatisprovidedwiththemachine.
1.SelectCALIBRATION CHECKintheSetupmenu.
Themachinedisplays
PLACESAMPLEWEIGHTONSCALE
PRESSOKTOTESTPRESSESCTOQUIT
2.RefertoFigure20,andverifythemagnetonthe
bottomofthemachineisclean.
3.Attachthecalibrationweighttothemagnetonthe
bottomofthemachine.SelectOK.
•
Ifthedisplayshows
PROCEDURECOMPLETED
thescaleisincalibration.SelectOK.
•
Ifthedisplayshows
CALIBRATIONREJECTED!
thescaleisoutofcalibration.Contactanauthorized
Robinairservicecenterforassistance.
4.Removethecalibrationweightfromthescale.
Refrigerant Identier
Install new lter with
arrow
↑
positioned as
shown.
Barb
Figure 19
Replace the sample hose assembly
during every lter change.
Sample Hose
Assembly