Invacare IRC5P, IRC5PO2 SECTION 18FLOWMETER

SECTION 18—FLOWMETER

Part No 1148070 63 Perfecto2™

SECTION 18—FLOWMETER

Replacing Flowmeter

 DANGER

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

beforeservicing.

NOTE:Forthisprocedure,refertoFIGURE 18.1onpage 63.

1. Unplugunit.

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

3. NotethelocationofthePVCtubingforaccuratereplacementafternewflowmeteris

installed.

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

5. Removepalnutsthatsecureflowmetertothecontrolpanel.

6. Removeflowmeterfromfrontofcontrolpanel.

7. InstallnewflowmeterreversingSTEPS4‐5.

8. Reinstallcontrolpanel.RefertoRemovingControlPanelonpage 53.

9. Rununitandcheckforleakswhere¼‐inchPVCtubingengagesflowmeterbarbed

fittings.RefertoLeakTest onpage 76.

10. Reinstallcabinet.RefertoRemovingCabinetonpage 23.

FIGURE 18.1 Replacing Flowmeter

Palnuts

Control Panel

Flowmeter Barbed

Fittings (Back of

Flowmeter)

Flowmeter

Contents

Main WARNING PERFECTO2 PARTS COMPATIBILITY Page Page Page SPECIAL NOTES NOTICE DANGER FEATURES TYPICAL PRODUCT PARAMETERS TYPICAL PRODUCT PARAMETERS O I/O SECTION 1IMPORTANT SAFEGUARDS Important Safeguards DANGER Radio Frequency Interference To R educe The R isk O f Burn s, El ectr ocuti on, F ire O r Inju ry To Persons. SECTION 2INSTALLATION/ SEQUENCE OF OPERATION Verification of Battery Free Power Loss Alarm Sequence of Operation SensO2 Oxygen Sensor Technology - Ceramic Zirconia Sensor Technical Description Operating Sequence Page SECTION 3PNEUMATIC DIAGRAM SECTION 3PNEUMATIC DIAGRAM SECTION 4TROUBLESHOOTING I/ I/O I/O Page Page Page Page Page Page SECTION 5CABINET Removing Cabinet SECTION 6PREVENTIVE MAINTENANCE Cleaning the Cabinet Filter Replacing the Outlet HEPA Filter Check the Outlet HEPA Filter Replace the Outlet HEPA Filter Replacing the Compressor Inlet HEPA Filter Replacing the Muffler Assembly Page SECTION 6PREVENTIVE MAINTENANCE 12. Reinstallcabinet.RefertoRemovingCabinetonpage 23. FIGURE 6.5 Replacing the Muffler Assembly Cleaning the Heat Exchanger SECTION 6PREVENTIVE MAINTENANCE ON EACH INSPECTION FIGURE 6.7 Preventative Maintenance Record MODEL NO. IRC SERIAL NO. PREVENTIVE MAINTENANCE RECORD SECTION 7COMPRESSOR Replacing Compressor Assembly SECTION 7COMPRESSOR FIGURE 7.1 Replacing Compressor Assembly Replacing Capacitor Rebuilding the Thomas Model 2660 Compressor Removing Compressor and Compressor Heads Page Page Rebuilding the Compressor Page Page SECTION 7COMPRESSOR FIGURE 7.7 Compressor Exploded View COMPRESSOR PARTS LEGEND SECTION 8P.E. VALVE Replacing P.E. Valve SECTION 8P.E. VALVE FIGURE 8.1 Replacing P.E. Valve SECTION 9SIEVE BEDS Replacing Sieve Beds SECTION 9SIEVE BEDS FIGURE 9.1 Replacing Sieve Beds NOTE:CompressorInletHEPAFilterremovedfromillustrationforclarity. SECTION 10CHECK VALVES Replacing Check Valves Page SECTION 11REGULATOR Replacing Regulator Adjusting Regulator Page SECTION 12HEAT EXCHANGER ASSEMBLY Replacing Heat Exchanger Assembly SECTION 12HEAT EXCHANGER ASSEMBLY FIGURE 12.1 Replacing Heat Exchanger Assembly SECTION 13CONTROL PANEL Removing Control Panel Page SECTION 14COOLING FAN Replacing Cooling Fan Page SECTION 14COOLING FAN NOTE:SieveBedsarenotshownforclarity. FIGURE 14.1 Replacing Cooling Fan NOTE:Coolingfanremovedfrom rubbergrommetstoshowproper installationofgrommetsin SECTION 15P.C. BOARD Replacing P.C. Board Page SECTION 15P.C. BOARD FIGURE 15.1 Replacing P.C. Board SECTION 16TRANSFORMER Replacing the Transformer SECTION 17ON/OFF SWITCH Replacing On/Off Switch SECTION 18FLOWMETER Replacing Flowmeter SECTION 19HOUR METER Replacing Hour Meter SECTION 20 4-WAY VALVE/ MANIFOLD ASSEMBLY Replacing 4-Way Valve and/or Manifold Assembly Page Page Replacing Pilot Valve Poppets and O-Rings Page SECTION 204-WAY VALVE/MANIFOLD ASSEMBLY FIGURE 20.2 Replacing Pilot Valve Poppets and O-Rings NOTE:DONOTdisassemble. SECTION 21PURITY INDICATORS SensO2 Alarm Indicators Operation Indicator Lights LX Models Indicator Light Explanation Page SECTION 22TIMING Autotuning Page Manual Tuning SECTION 23LEAK TEST Leak Test SECTION 23LEAK TEST FIGURE 23.1 Leak Test 4 Way Valve Function Test SECTION 23LEAK TEST FIGURE 23.2 4 Way Valve Function Test SECTION 24 ALARM TEST Alarm and Sensor Tests Power Loss Alarm Low Pressure Test Time-Out Test High Pressure Test Oxygen Sensor O P.E. Valve Coil Test Page SECTION 25 SIEVE BED PRESSURE CHECK Checking Sieve Bed Pressure Disassembly Pressure Testing Page LIMITED WARRANTY