Robinair R1234yf User Manual download pdf (Page 24)

Operating Instructions — Charge

5. Themachinedisplays

CHARGINGAHIGHVOLTAGESYSTEM

THATUSESPOEOIL?

 IfOKisselected,themachinepromptsforaHose

Flushprocedure.Connecthigh-side(red)and

low-side(blue)servicehosestothestorageports,

andopenthecouplervalves.PressOK.IfESCis

selected,themachinecontinueswithCHARGE.

6. AfterHoseFlushiscomplete,moveservicehoses

tothevehicle’sserviceportsandopenthecouplers.

PressOK.Themachineperformsautomatictests

onthesystemasrequiredbySAEJ2843.

7. Whenprompted,performamanualleaktestusinga

leakdetectorcertiedtoSAEJ2913.Oncetheleak

testhasbeencompleted,CHARGEcontinues.

 Movingorbumpingthemachineatthispointmay

resultinaninaccuratecharge.Whenthecharge

cyclegetsclosetothedesiredweightvalue,the

machineslowsdown.Itwillcharge,settle,charge

again,settle,etc.

8. AttheendofCHARGE,themachineprompts

throughaDiagnosticPressurestest.

9. Followpromptstoequalizeliquidrefrigerantintothe

vehicleA/Csystemformaximumchargeaccuracy.

10.Whenprompted,closethecouplervalvesand

removetheservicehosesfromtheA/Csystem.

Installthehosesonmachine’sstorageports.

11.PressOKtobeginclearinghosestopreparethe

machineforthenextservice.

12.Whenthehosesareclear,thedisplayshowsa

summaryofchargeresults,whichmaybeprinted

bypressingOK.

Note: If a VIN was entered when prompted,

complete service results may be printed at the

end of the vehicle’s entire service by selecting the

vehicle VIN from the STORED DATA menu.

The STORED DATA menu is found by pressing

MENU and choosing FUNCTIONS.

ThevehicleA/Csystemisnowreadyforuse.

Charge continued

CAUTION: If the low-side (blue) or high-

side (red) coupler valve is left open

during the hose clearing process, the

system will pull refrigerant back out of

the vehicle.

Note: The charge process includes an

automatic vacuum leak test, after which the

system is pressurized with a small amount

of refrigerant for a manual leak test.

•

If the leak test passes, the refrigerant is

automatically recovered and the selected

charge is added.

•

If the leak test fails, the refrigerant needs

to be recovered and the vehicle needs

to be checked for leaks by using an

electronic leak detector.

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Robinair R1234yf User Manual Page 24

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