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Invacare IRC5P Oxygen Equipment User Manual

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SECTION 15—P.C. BOARD

Perfecto

2

™

58 Part No 1148070

SECTION 15—P.C. BOARD

Replacing P.C. Board

ƽ DANGER

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

beforeservicing.

CAUTION

Followthesepre‐cautionstopreventdamagetotheP.C.boards:

BeforehandlinganyP.C.boards,youneedtobeproperlygroundedtopreventstatic

damagetothecomponentsoftheboard.AStaticCuffMUSTbewornandproperly

groundedusinganalligatorclip.Electricalconduitorawaterpipeisnormallysufficient

whenaknowngoodgroundisnotavailable.Careshouldbetakentoensurethatthe

alligatorclipcontactswithbaremetalsurface.

Whenremovingquickdisconnectsterminals,DONOTpullonwireitselfasdamageto

theconnectionmayoccur.HolddowntheP.C .boardwithonehandanduseanupward

forcewithaslightrockingmotiontoremovetheterminals.

BeforeinstallinganyP.C.boards,ensurethatallinsulatorsareinplace.

NOTE:Forthisprocedure,refertoFIGURE 15.1onpage 60.

1. Unplugunit.

2. Removecabinet.RefertoRemovingCabinetonpage 23.

3. Removecontrolpanel.RefertoRemovingControlPanelonpage 53.

4. Dothefollowing:

A. DisconnectwiringharnessesfromPCboard.

ƽ WARNING

DONOTremoveoxygensensortubingfromP.C.board.RemovefromregulatorONLY.

DONOTremovethepressuresensortubingfromP.C.board.Removefromtopof

producttankonly.Damagetooxygensensorassemblyorpressuresensorcouldoccur.A

faultysensormayresultinimproperoxygendeliveryandharmtotheuser.

B. Disconnectpressuresensortubingfromproducttank,notP.C.Board.

C. ForconcentratorsthathaveO2sensor,disconnecttheoxygensensortubingfrom

regulatorfitting.RefertoReplacingRegulator

onpage 48.

5. RemovethetwomountingscrewsontopcornersofP.C.board.

6. PositionnewP.C.board.

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