Direct Supply® Attendant® 5L Stationary Oxygen Concentrator

The A5LC-1 oxygen concentrator is intended for use by a resident in the home, hospital, or hospital-like facility as an oxygen supplement device. The concentrator is an electronically operated device that separates oxygen from ambient air, providing high concentration of oxygen directly to the resident through a nasal cannula or other method. Clinical studies have documented that oxygen concentrators are therapeutically equivalent to other types of oxygen delivery systems.

NOTE: Hospital use typically includes areas such as general care floors, operating rooms, special procedure areas, and intensive and critical care areas within the hospital. Hospital- type facilities include physician office-based facilities, sleep labs, Skilled Nursing facilities, surgical centers and subacute care centers.

Features of the A5LC-1

Physical The concentrator is lightweight and compact, measuring 13"W x 10¼"H x 21¼"D (33 cm x 26 cm x 54 cm) and weighing 33 lbs. (15 kg). The concentrator has a flowrate knob that allows the resident to adjust the oxygen flow from 0.5 to 5 liters per minute, and a digital counter that tracks the total hours of use. The concentrator also has an intake filter and a cabinet filter to prevent dust and particulate from entering the concentrator.

Electrical The concentrator is powered from a 120V AC 60Hz source, and has audible/ visual alarms whenever power is lost, outlet air pressure is below 0.5L/min., or oxygen purity is low.

General Safety Information

This section contains important safety information related to general use of the A5LC-1. Other important safety information appears throughout the manual.

Important! Carefully read this manual and all accessory manuals, as well as all precautionary information and specifications, before using the concentrator.

Important! The concentrator should always be kept in an upright position to prevent damage during transport.

Manufacturer's Description

• Low sound output for user and caregiver comfort
• Compact footprint and lightweight design allows for easy storage and transportation
• Easy-to-read digital hour meter display
• Includes oxygen purity and low flow rate indicators
• Only requires annual filter changes
• Wipe-clean cabinet
• Easy to use dial to set flow rate from 0.5-5 LPM

1. Power supply: AC120V, 60Hz; Current: 3.5A; Power: 390VA
2. Sound level: ≤ 50dB (A)
3. Maximum recommended flow: 5L/min
4. Flow
   1. Flow Range at Outlet Pressure of zero: 0.5 - 5L/min
   2. Flow Range at Outlet Pressure of 7 kPa: 0.5 - 5L/min
   3. Change in maximum recommended flow when back pressure of 7 kPa is applied: < 0.5 L/min
5. Oxygen Concentration: When 0.5 - 5L/min ,93% ± 3% (after running for 30 minutes)
6. Output Pressure: 38kPa ± 5kPa ;
7. Release Pressure by machine operation: 250kPa ± 50kPa;
8. Weight: 33 lbs. (15kg)
9. Dimensions: 13" x 10¼" x 21¼" (33 cm x 26 cm x 54 cm)
10. Altitude: The oxygen concentration will operate at altitudes of up to 6000’ (1828 m) with no degradation in purity. Between altitudes of 6000 - 13,100’ (1828 - 4000 m); the oxygen purity will decrease to less than 90%.
11. Safety Systems:
    • Current overload or line surge shutdown.
    • High temperature compressor shutdown.
    • High pressure alarm shutdown.
    • Low pressure alarm shutdown.
    • Low Oxygen Concentration alarm.
12. Minimum Recommended Operating Time: 30 minutes
13. 13 Electric Classification:
    1. Class II equipment, Type BF applied part (Nasal oxygen cannula);
14. Mode of operation: Continuous duty
15. Operating Conditions:
    • Overvoltage category: II Pollution degree: 2, Altitude: ≤2000
    • Temperature range: 41°F - 104°F (5°C - 40°C)
    • Relative humidity: ≤80%
    • Atmospheric pressure: 12.47psi - 15.37psi (86kPa - 106kPa)
16. Oxygen Output Temperature: Less than ambient temperature +11°F (6°C)
17. Cannula/Oxygen Tubing: To prevent folding or kinking of oxygen hose, do not use cannula longer than 6' (2m) or oxygen hose longer than 50' (15.2m) (non-flattening).
18. 18 Storage and Transport Conditions:
    • Temperature Range: 32°F - 131°F (0°C - 55°C)
    • Relative Humidity Range: 10% - 90%
    • Atmospheric pressure: 10.2psi - 15.37psi (70kPa - 106kPa)

If used in a clean environment, the concentrator typically requires no filter cleaning or changes for one year. More frequent cleaning and filter changes may be required if:

• You are operating the concentrator in a dusty environment
• You are operating the concentrator continuously
• Your facility policy requires more frequent maintenance

Cleaning the Cabinet

Turn off the power switch and unplug the concentrator from the 120V AC power source Using a soft dry cloth, a damp sponge or alcohol-based wipes, clean only the outside of the concentrator. Do not use acetone, solvents or any other inflammable products. Do not allow any liquids to enter the cabinet.

Cleaning the Cabinet Filter

• Remove the locking screw and the access door on the left side of the concentrator
• Remove the cabinet filter from the access door
• Wash the cabinet filter with water, and allow to completely dry
• Replace the cabinet filter in the access door
• Reattach the access door
• Replace the access door screw
• Replacing the Intake Filter
• Remove the access door on the left side of the concentrator
• Remove the intake filter by sliding two fingers under the filter and lifting while twisting the filter back and forth
• Install a new filter by inserting the plastic tube on the filter into the rubber fitting. Press down and twist the filter back and forth until the filter is fully seated.
• Replace the access door

Clean the humidifier bottle weekly.

• Wash with a mild detergent
• Rinse with water
• Completely dry before returning to service

Disinfecting the Optional Humidifier Bottle

• Unscrew the top of the humidifier bottle
• Remove the tube and filter
• Immerse the bottle and tube in a disinfecting solution
• Rinse the bottle and tube completely with water
• Allow bottle and tube to completely dry before reassembling and returning to service

It is recommended to replace the humidifier bottle tube once a year.

Oxygen Nasal Cannula

• Follow the nasal cannula manufacturer’s instructions