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Invacare IRC5PO2 Oxygen Equipment User Manual

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SECTION 10—CHECK VALVES

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46 Part No 1148070

SECTION 10—CHECK VALVES

Replacing Check Valves

ƽ DANGER

Topreventelectricalshock,ALWAYSdisconnectconcentratorfromelectricaloutlet

beforeservicing.

NOTE:Forthisprocedure,refertoFIGURE 10.1onpage 47.

1. Unplugunit.

2. Removecabinet.RefertoRemovingCabinet

onpage 23.

NOTE:Replaceoneorbothcheckvalveswhenperformingthisprocedure.Thecheckvalvesareone‐

waydirectionalandcanbecheckedbypassingairthroughthem.Airshouldflowinonedirection

only.

3. ItmaybenecessarytoremovethecompressorHEPAinletfiler.RefertoReplacingthe

CompressorInletHEPAFilteronpage 26.

4. Removetie‐wrapsfromtopandbottomofthecheckvalve(s)anddisconnectcheck

valve(s)from¼‐inchPVCtubing.

ƽ WARNING

Thecheckvalvesareone‐waydirectionalandMUSTbeinstalledcorrectly.Theletters

“VAC”areprintedonthecheckvalves.ThecheckvalvesMUSTbeinstalledwiththe

“VAC”ontheundersideofthecheckvalve.Lowsystempressuresandeventualbed

contaminationwillresultifcheckvalvesarenotproperlyinstalled.

CAUTION

DONOTputacheckvalveonthe regulatoroutlettubing.Otherwise,damagemayresult.

Theregulatoroutlettubingisidentifiedbytheflowarrowonthesideoftheregulator

whichpointstoit.

5. Installthenewcheckvalve(s)intothe¼‐inchPVCtubingoninlettubingonly.

6. Makesure“VAC”isontheundersideofthecheckvalvetoensureproperorientation

ofcheckvalveswheninstalling.

7. Securethecheckvalve(s)byinstallingnewtie‐wrapstothe¼inch

PVCtubingwhere

previouslyremoved.

NOTE:If¼inchPVCtubingisdamagedinanyway,replacethesectionof¼inchPVCtubing

beforeinstallingcheckvalve(s).

NOTE:Ensurecheckvalvesarenotcrossed.Leftbarbproducttankcheckvalvegoestoleftbarbon

sievebed.Rightbarbproduct

tankcheckvalvetorightbarbonsievebed.

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