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30
Maintenance
Caution: To prevent equipment damage,
use only authentic Robinair No. 34724
lters in this machine. All performance
tests and claims are based on using this
specic lter.
WARNING: To prevent personal
injury while working with
refrigerant, read and follow the
instructions and warnings in
this manual, and wear protective
equipment such as goggles and
gloves.
Filter Change
Thelterisdesignedtotrapacidandparticulates,
andtoremovemoisturefromrefrigerant.Tomeet
themandateforadequatemoistureandcontaminant
removal,theltermustbereplacedafter150kg
(331lbs.)ofrefrigeranthasbeenltered.
Themachinegivesawarningwhen100kg(220lbs.)
oftheltercapacityhasbeenused;themachinelocks
downwhenthe150kg(331lb.)ltercapacityhasbeen
reachedandwillnolongerfunction.
WARNING: The components in the machine are
under high pressure. To prevent personal injury,
change
the lter only when the machine prompts.
Check Remaining Filter Capacity
1.SelectFILTER CHANGEfromtheSetupMenuor
whenthemachineprompts.Themachinedisplays
FILTERLIFETIME:X.XXKG
REPLACEFILTER?
Themachinedisplaystheamountofltercapacity
remaininguntilthemachinelocksdown.
2.Whenprompted,selectOKtochangethelter;
selectESC toresumeusingthemachine.
Replace the Filters and Sample Hose Assembly
1.IfOK wasselectedtochangethelter,themachine
clearsthelter,thenpromptsforthenewltercode
tobeentered.
WAITINGFORFILTERTOBECLEARED
SERIALNR.FILTER
Usethekeypadtoentertheserialnumberthat
appearsonthenewlterandselectOK.IfSERIAL
NUMBERWRONGisdisplayed,theserialnumber
hasbeenincorrectlyentered,orthelterhasalready
beenusedinthismachine.
2.Themachinedisplays
TURNUNITOFF
REMOVESHROUDANDREPLACEFILTER,
IDENTIFIERFILTER,AND
IDENTIFIERSAMPLEHOSE
Shutoffthemachine.Removetheoilbottle.Remove
thefourscrewsholdingtheshroud.SeeFigure15.
Figure 15
Remove the four screws
holding the shroud.