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CAIRE VisionAire 5 Technical & Service Manual
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CAIRE VisionAire 5 Technical & Service Manual

CAIRE VisionAire 5 Technical & Service Manual

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VisionAire 5 ™
Technical Service Manual
MN241-1 Rev B

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Summary of Contents for CAIRE VisionAire 5

  • Page 1 VisionAire 5 ™ Technical Service Manual MN241-1 Rev B...
  • Page 2 Table of Contents Section 1.0 Introduction Equipment Provider Responsibility Important Notice and Symbol Explanations Classification Functional Specifications Section 2.0 Operation Check and Oxygen Concentration Test Description of Operation Operation Check Safety and Alarm Features and Alarm Test Procedures 2.3.1 Compressor Motor 2.3.2 General Malfunction 2.3.3 Oxygen Monitor 2.3.4 Power Failure...
  • Page 3 Section 4.0 Main Components Components Cabinet Removal 4.2.1 Removing Front Panel 4.2.2 Removing Back Panel Compressor 4.3.1 Compressor Replacement 4.3.2 Capacitor Replacement Solenoid Valves 4.4.1 Valve Manifold Replacement 4.4.2 Solenoid Valve Coil Replacement Sieve Beds 4.5.1 Sieve Bed Replacement Cabinet Fan 4.6.1 Cabinet Fan Replacement Circuit Board 4.7.1 Circuit Board Replacement...
  • Page 4 Section 5.0 Troubleshooting Operating Pressure Test 5.1.1 High Operating Pressure 5.1.2 Low Operating Pressure General Troubleshooting 5.3 Troubleshooting Chart 5.4 Tool Kit and Pressure test Gauge Section 6.0 EMC Testing 6.1 EMC Testing Tables...
  • Page 5 ▪ Inspect the condition of each VisionAire unit immediately upon delivery to your business location. Note any sign of damage on the delivery receipt and report it directly to both the freight company and CAIRE Corporation immediately. ▪ Check the operation of each VisionAire unit before delivery to a patient. Confirm the oxygen concentration level is within specifications as referred to in Section 2.4.
  • Page 6 Symbols can also permit easier comprehension of a concept within a restricted space. The following table is a list of symbols and definitions that may be used with CAIRE’s VisionAire Oxygen Concentrators. These symbols are referenced from the appropriate...
  • Page 8 1.3 Classification Type of protection against electric shock: Class II Protection from electric shock is achieved by DOUBLE INSULATION. Protective earthing or reliance upon installation conditions is not required. Degree of protection against electric shock: Type BF Equipment providing a particular degree of protection against electric shock, particularly regarding: 1) allowable leakage current;...
  • Page 9 WARNING: PREGNANT OR NURSING WOMEN SHOULD NOT USE ACCESSORIES RECOMMENDED IN THIS MANUAL, THEY MAY CONTAIN PHTHALTES.
  • Page 13 1.4 Functional Specifications Oxygen Concentration: 1-5 liters per minute at 90% +5.5/-5% (Based on 70°F [21°C] at sea level) Accuracy: ± 10% of indicated flow setting, or ± 200 ml, whichever is greater.* Outlet Pressure: 9 PSIG Max Response Time: Allow 5 minutes to attain maximum oxygen concentration.
  • Page 14 VisionAire unit delivers up to 95.5% oxygen at the prescribed flow rate. 2.2 Operation Check CAIRE tests every VisionAire Oxygen Concentrator thoroughly after manufacture. You must perform the following test to ensure that no damage occurred in shipping or handling.
  • Page 15 2.3 Safety and Alarm Features and Alarm Test Procedures 2.3.1 Compressor Motor A pressure relief valve is fitted to the compressor outlet and is calibrated to 280 kPa (40 PSIG). Thermal safety is ensured by a thermostat situated in the stator winding of the compressor (135°C / 275 °F).
  • Page 16 2.4 Start Up Each time the VisionAire unit is turned on, an alarm should sound. 2.5 Power Failure Alarm Test 1. Disconnect the unit from external power. 2. Set the on/off switch to the “on” position. 3. Verify that the power loss alarm LED illuminates on the front panel and audible alarm activates.
  • Page 17 2.8 Oxygen Concentration Test and Specification To ensure that the unit’s output of oxygen is within specification, you must perform a test of the oxygen concentration. Test the unit upon delivery to a patient and at periodic intervals. Equipment Providers need to establish and implement a protocol to check oxygen concentration. If a humidifier bottle is used, disconnect it.
  • Page 18 3.0 General Instructions 3.1 Instructions It is important that patients thoroughly understand how to operate the CAIRE VisionAire unit. This enables proper treatment as prescribed by a qualified, licensed health care provider/physician. If patients experience any discomfort or the unit alarms, they must notify their licensed health care provider/physician immediately.
  • Page 19 3.2 Patient, Provider, and Routine Maintenance CAIRE does not require any preventative or routine maintenance on the VisionAire concentrator. VisionAire’s unique design and technology allows for a virtually maintenance-free oxygen concentrator. You do not need to perform any maintenance as long as the VisionAire unit remains within specifications at the desired flow rate.
  • Page 20 Since this drop in oxygen production occurs over a long period of time, preventative maintenance on the compressor is not required. You can continue a patient’s therapy on the VisionAire unit as long as that unit’s oxygen concentration level at the prescribed flow rate is within CAIRE’s specifications.
  • Page 21 Sound Level The condition of the compressor’s cup seals, bearings, and other components can result in an increased sound level. If the compressor’s cup seals or bearings wear to the point that they become noisy, the concentrator may become noticeably louder, therefore compressor service or exchange may be required.
  • Page 22 4.3.2 Capacitor Replacement The capacitor starts the compressor. If the compressor cannot start, the capacitor may be defective and require replacement. To replace the capacitor, follow the steps below: 1. Set the unit’s 0 switch to the “0” position and unplug the power cord. 2.
  • Page 23 Care must be taken when removing and installing valve coil retainer clips. 10. Using 1/8-inch Allen wrench, remove mounting bolt securing the manifold to the center section. Remove manifold assembly from compressor enclosure. 11. With the tubing still attached from the exhaust muffler and compressor, remove the fittings and tubing located on the underside of the valve manifold using a 7/16-inch open end wrench.
  • Page 24 c. The AC 0 power switch wire harness and the pressure tubing to the circuit board sensor must be routed to the outside of the manifold assembly and along the back of the capacitor before installation. 7. When reinstalling fittings to top of the sieve beds, ensure wires and tubing on both sides are located inside of these connections.
  • Page 25 Sieve Bed Removal To remove sieve beds, follow the steps below: 1. Set the unit’s 0 switch to the “0” position and unplug the power cord. 2. Remove back panel. 3. Remove the fitting on the top of each sieve bed. 4.
  • Page 26 Cabinet Fan Installation To install the cabinet fan, follow the steps below: It is very important to install the cabinet fan correctly. Reference to arrow indicating airflow direction must be made. Improper installation of cabinet fan may result in unit to overheat and shutdown.
  • Page 27 4. In viewing unit from the front, locate circuit board and cut tie-wrap securing tubing to the transducer on circuit board. Carefully remove tubing from circuit board sensor. Care must be taken when removing and installing tubing to circuit board sensor to prevent damaging sensor. 5.
  • Page 28 Remove the back panel of unit. Pull outward on the regulator knob to unlock it. Turn the regulator knob (clockwise to increase) until flow meter ball is set to ½ liter above the maximum flow rate. Push in the regulator knob to lock it. Reconnect the back panel.
  • Page 29 9. Turn the flowmeter adjustment knob clockwise until the flowmeter indicates maximum flowrate. 10. Reconnect back panel. When this back pressure correction is no longer required, follow the normal regulator setting procedure as described in Section 4.8.1. 4.8.4 Product Regulator Cleaning or Rebuilding ¼...
  • Page 30 4.10 I/ Power Switch Replacement /0 Power Switch Removal To remove the /0 power switch, follow the steps below: 1. Set the unit’s /0 switch to the “0” position and unplug the power cord. 2. Remove the front panel and locate the /0 power switch.
  • Page 31 Hour Meter Installation To install a new hour meter, follow the steps below: 1. Follow the removal procedure for the hour meter in reverse order. 2. Be sure to reinstall the new hour meter properly by having the ‘hourglass’ icon located on the bottom when finished.
  • Page 32 4.13 Power Cord Replacement Power Cord Removal To remove the power cord, follow the steps below: 1. Set the unit’s /0 switch to the “0” position and unplug the power cord. 2. Remove both front and back panels. 3. Using a Phillips-head screwdriver, remove screw securing the right mounting plate assembly from the center section.
  • Page 33 4.14 Oxygen Monitor Circuit Board Replacement Oxygen Monitor Circuit Board Removal To remove the circuit board, follow the steps below: Care must be taken when removing and installing tubing to circuit board sensor to prevent damaging sensor. 1. Set the unit’s /0 switch to the “0”...
  • Page 34 4.16 Exhaust Muffler Replacement Exhaust Muffler Removal and Installation To replace the exhaust muffler, follow the steps below: 1. Follow steps 1-7 in the Compressor Assembly Removal procedure outlined under section 4.3.1. 2. Locate exhaust muffler assembly in back of compressor enclosure, cut tie-wrap securing it in place.
  • Page 35 4.17 Caster Replacement Caster Removal To replace a caster, it is necessary to remove the base of unit from the center section. To do this, follow the steps below: 1. Set the unit’s /0 switch to the “0” position and unplug the power cord. 2.
  • Page 36 Change the sieve beds. 5.1.2 Low Operating Pressure If the oxygen concentration level at the desired liter flow is within CAIRE’s specifications, no service is required, even if operating pressure is low. If concentration is below specifications at the desired liter flow rate with low operating pressure, this may indicate any of the following: •...
  • Page 37 5.2 General Troubleshooting Before reviewing the troubleshooting chart, the following steps may be useful to isolate any malfunctions: 1. Turn on the concentrator. If the unit does not turn on, refer to the troubleshooting chart. 2. Turn the flow meter knob until it is wide open at the highest setting. The ball should be located ½...
  • Page 38 5.3 Troubleshooting Chart Problem Probable Cause Solution • • No power to unit. Check wall outlet for power. Unit does not run. • • Unit circuit breaker tripped/faulty Reset or replace circuit breaker. I/0 power switch in “I” position. • •...
  • Page 39 Problem Probable Cause Solution • • Compressor relief valve activates Faulty electrical connection at waste Repair electrical connection. • (popping sound) valve. Replace valve coil. (Use of an • Faulty solenoid valve coil. ohmmeter can be helpful to easily • determine faulty coil).
  • Page 40 Problem Probable Cause Solution • • Ambient or unit’s temperature is too Low oxygen concentration. Oxygen Unit operating above temperature high. range specifications. monitor yellow light ( ) and • • Leak. Leak test and repair. intermittent audible alarm • •...
  • Page 41 9/16-inch combination wrench, and 1/8-inch Allen wrench. Pressure test adapter. (CAIRE p/n: KI257-2). A pressure test gauge (CAIRE p/n: KI036-1) to read operating system pressures on the VisionAire unit should be kept available at all times. An ohmmeter/multi-meter is a useful diagnostic tool when troubleshooting electrical components (coil,...
  • Page 42 6.0 Tool Kit and Pressure Test Gauge EMC Testing Tables Medical equipment needs special precautions regarding EMC and needs to be installed and put into service according to the EMC information provided in this section.
  • Page 45 Ball Ground, GA 30107 www.cairemedical.com Copyright © 2018 CAIRE Inc. CAIRE Inc. reserves the right to discontinue its products, or change the prices, materials, equipment, quality, descriptions, specifications and/or processes to its products at any time without prior notice and with...