Operation Manual of 20 Liters Oxygen Concentrator RESPIREASY DEDAKJ

August 4, 2025

Operation Manual of

20 Liters Oxygen Concentrator

20 liters powerful continuous oxygen concentrator

Important:

Do not service this concentrator without first reading and understanding this manual!

1 Foreword…………………………………………………………4

2 Safety notice……………………………………………………5

3 Product introduction……………………………………………8

4 Using condition…………………………………………………8

5 Scope of application……………………………………………8

6 Technical parameter……………………………………………8

7 Name and function…………………………………………10

8 Operation steps………………………………………………11

9 Maintenance……………………………………………………12

10 Troubles and solution…………………………………………14

11 Condition for transportation and storage……………………15

12 Quality warranty………………………………………………15

13 Contact us……………………………………………………16

1 Foreword

Thank you for purchasing our products, hoping you will be satisfied with our products.

This operation manual contains function, operation steps, attention, basic trouble solution and so on.

To ensure your efficient use of the machine, please have a close read of this operation manual before operating it.

Maybe, there are some pictures, which are different from what you have seen in the real model in this manual.

2 Safety notice

This unit is not a life-support device , and in certain circumstances oxygen therapy can be hazardous, it is suggested that if any patient who needs oxygen treatment, please follow doctor’s advice to choose the right flow and period for oxygen before using the oxygen concentrator.

Please note the following special statements,used throughout this manual,and their significance:

Note: Explanatory information.

Damage: Action could result in damage to equipment.

ATTENTION: Action could result in personal injury.

WARNING: Action could result in fire and explosion.

ATTENTION: Consult Instructions For Use.

The date of Manufacturer

The Manufacturer

AUTHORISED REPRESENTATIVE IN THE EUROPEAN COMMUNITY

Before Installation

Damage:Only use stable and safe electrical power sources.

Damage: If the electrical power source becomes unstable, discontinue use.

Placement

ATTENTION:The oxygen concentrator should be located in well-ventilated space, in case there are polluted air or smog in the oxygen.

ATTENTION:Do not place items on top of the concentrator.

ATTENTION:Always place the concentrator on a hard surface. Never place the concentrator on a surface such as bed or couch, where the concentrator may tip or fall.

Fire Warning

WARNING:For oxygen can be combustion-supporting, keep oxygen concentrator far away from naked light or fire resource, no smoking or naked light .

WARNING:Keep the concentrator away from flammable and explosive areas.

WARNING:Textiles and other materials that normally would not easily burn, can ignite and burn with great intensity in oxygen enriched air.

WARNING:A spontaneous and violent ignition may occur if oil, grease or greasy substances come in contact with oxygen under pressure. ALWAYS keep these substances away from the oxygen concentrator.

Maintenance

ATTENTION:Before cleaning the dust on the net of oxygen concentrator, the plug must be pulled out in case electric attack.

ATTENTION:The filter cotton and filter are the items needed to clean, among which external filter cotton should be cleaned every 100 hours, and internal filter should be cleaned every 3000 hours.

Radio Frequency Interference

Most electronic equipment is influenced by Radio Frequency Interference (RFI). When there is strong electromagnetic interference,maybe the LCD will be slightly affected,but the machine is still running.ALWAYS exercise CAUTION with regard to the use of portable communications equipment in the area around such equipment.

Additional Safety Warnings

WARNING:DO not reach for a concentrator that has fallen into water. UNPLUG IT IMMEDIATELY.

WARNING:NEVER leave the concentrator unattended when plugged in.

ATTENTION:ALWAYS supervise closely when this product is used near children or those who require close supervision.

ATTENTION:In using the machine, do not open the front and back cover at all. In case there are quality problem, do not dismantle it secretly. Any alarm or other abnormal phenomenon has been found, connect with equipment supplier or factory.

ATTENTION:Ensure the bottom smooth exhaustion during operating, or else the machine will be over-heated.

ATTENTION:There is intermitted exhaustion sound during operating (13 seconds in intermission).

ATTENTION:5 minutes are needed from oxygen concentrator from warming up to reach regular function.

ATTENTION:The machine is only for oxygen supply, and the oxygen concentration will be up to 90% when air outlet reaches its nominal flow.

ATTENTION:In case the indicator shows abnormal oxygen, operator should declare to dealer or factory in favor of maintain.

ATTENTION:Once open the adjust knob for flow in full, but flow meter shows zero, turn off the machine immediately and have a check for trouble.

ATTENTION:Do not turn on or off frequently, To restart the machine after turning off, no less than 5 minutes are necessary (namely, exhaust internal gas of the machine completely, for if air compressor turns on with pressure, its life will be shortened )

ATTENTION:Turn up the flowmeter switch immediately when power switch is turned on.

Requirement of environment protection

The materials used in the system won’t create environment hazard.The packing materials of the system are recyclable, and they must be collected and disposed according to the related regulation in the country or region where the package of the system or its accessories is opened.

3 Product introduction

RespirEasy-10/RespirEasy-15/RespirEasy-20 medical oxygen concentrator is a device that extracts oxygen from atmospheric air. It will typically be an electrically-powered molecular sieve (artificial zeolite) used to separate nitrogen from ambient air. It could be applied widely in the hospitals at all different level, clinics, health centers and health care for the old person, mental workers and students, etc.. Whether the user is professional or not, the users could operate the oxygen concentrator by themselves after reading this user’s manual.The oxygen concentrator can supply 1-2 patients simultaneously, with steady oxygen flowing out, safe and reliable, low cost, adjustable flow. The key parts of the concentrator adopt anti-tiring and anti-aging design, and the planned life of the whole concentrator reaches up to 20,000 hours or 5 years, whichever comes first.

4 Using condition

1. Ambient temperature: 10℃-40℃

2. Relative humidity: 30%-85%

3. Air pressure: 700 hPa-1060 hPa

4. No corrosive gas and strong magnetic field around.

5 Scope of application:

For Medical Use:

Medical oxygen supplied by the concentrator is beneficial to cure the disease or heart and blood vessel system, chronic pulmonary system, the brain and blood vessel system, chronic pulmonary tuberculosis, etc.

For Health care:

Medical oxygen can be used for athletics and intellectuals and brainworkers, etc. to eliminate fatigue and also suit for the departments of health care, sanatorium, healthy, plateau military camps and hotels and other places where need oxygen.

6 Technical Parameter

Model	RespirEasy-10G	RespirEasy-15G	RespirEasy-20G
Rated power (VA)	550	1100	1100
Operation voltage (V/Hz)	AC110V±10% 50±1
Oxygen flow (L/min)	0-10	0-15	0-20
Oxygen concentration (%)	93%±3%
Outlet pressure (Mpa)	0.04—0.07
Alarm	Power failure;low&high pressure ; temperature(optional); low purity (optional); maintenance reminding after 3000 hours use(optional)
Sound level (dB)	≤55	≤55	≤60
LCD display	accumulating timing; present timing; timing;
Large LCD display (optional)	Pressure digital(accuracy:0.001MPa); accumulating timing(range:0-10000hours); present timing(accuracy:1 minute); presetting timing(accuracy:1 minute) Optional : temperature digital(accuracy:0.1); purity digital; maintenance reminding;
Net Weight (Kg)	28	77	77
Dimension (mm)	38(deep)38(width)56(height)cm	70(deep)39(width)53(height)cm	145(deep)43(width)63(height)cm
Low purity alarm (Optional)	When oxygen purity is 85%, the green lamp is on, when oxygen purity is <85% ，red lamp is on, indicating low purity
Dehumidity device	Pressure:0 Mpa Function:exhaust water
Fuse	F7A/250V	---	---

7 Name and Function

1) Indicating Lamp

Total 6 indicating lights, and the code of them are 1,2,3,....6 from left to right , and their indication for each model are as follows:

P.O.: power switch (green lamp)

P.F.: power failure(red lamp)

L.P.: low pressure(yellow lamp)

H.P.: high pressure(red lamp)

L.O2.:oxygen purity is < 85%,(red lamp)

H.O2:oxygen purity is85%, (green lamp)

2) Power switch

3) Oxygen flow meter

The location of float in the oxygen flow meter shows the outlet oxygen flow (L/min.).

4) Knob of oxygen flow meter switch

The other name of knob of oxygen flow meter switch is flow control valve.

It adjusts and controls the outlet oxygen flow.

Do not Switch it over-forced, or else it is easy to damage the valve core. Switch it counterclockwise to turn on, clockwise to turn off.

5) Intake air filter

Once need to replace, replace it by special assembly for the machine.

6) LCD display( Liquid crystal display )

a.It can display in item 1 in Name and Function

b.At the beginning of starting the machine, the LCD screen is bright, after 15 minutes it will return to screen saver mode. But if you press the DOWN key during working, the screen will bright again.

7) Timing keys

The two buttons are used for timing adjustment, and press the UP key(△) on to increase timing by adding 10min,the maximum is 40 hours. And press the DOWN key (▽) on to decrease timing by reducing 10min. the DOWN key (▽) to reduce timing to “0”, the machine will turn off automatically

8)Back label

9)Power socket

8 Operation steps

1. Connect the power, put the plug of power line connected with the power AC230V,turn on the power switch.

2. Adjust well oxygen output flow according to the request, the maximum scale line of the flow meter is recommended oxygen absorbing flow (counter clockwise—on, clockwise—off, RespirEasy-10 adjusted to 10L/min, RespirEasy-15 adjusted to 15L/min, RespirEasy-20 adjusted to 20L/min.

3. Insert the intake end of tube onto the outlet of oxygen concentrator, then use the oxygen to your industry.

4.When finished, turn off the power, if there is discontinuous use, please unplug the power plug.

Unplug the power plug

5. Oxygen purity alarm(for optional): The oxygen purity will rise to the normal level in five minutes of operation. When oxygen purity is ≥ 85%, the green lamp is on, when oxygen purity is <85%, red lamp is on, indicating low purity.

6. In case oxygen generator is connect with power but the whole machine is still in the state of power off with alarm sound, please check out the connection part of power whether it is in good connection, or whether there is a power off in external power supply.

9 Maintenance

1、 In the condition of power off, make a clean for the outside body by soft towel with little detergent, and then wipe it up with dry towel, once or twice per month.

2、 It is a critical step for daily maintenance to clean intake air filter, at least twice a month.

Detail steps: Remove the filter from the back of the machine, clean them with detergent and clean it out with clean water completely, get ride of extra water and dry up naturally, finally set back after dry up.

Damage: Do not operate the concentrator without the filters installed, or while filters are wet. These actions could permanently damage the concentrator.

3、 Clean secondary filter

Clean secondary filter an interval about 100 hours, open the top cover and take out storage case Screw，open the cover of secondary filter , take off filter cloth, then clean it with detergent, and then clean it out with clean water completely, get rid of the extra water, and dry it naturally, finally set back after dry up.

Damage: Do not operate the concentrator without the filters installed, or while filters are wet. These actions could permanently damage the concentrator.

4、 Clean third filter

Clean third filter an interval about 500 hours, open the top cover and take out storage case Screw,take off the secondary filter and open the pipe body of filter in counterclockwise direction, take off filter cloth, then clean it with detergent, and then clean it out with clean water completely, get rid of the extra water, and dry it naturally, finally set back after dry up

Damage: Do not operate the concentrator without the filters installed, or while filters are wet. These actions could permanently damage the concentrator.

5、 The battery of pM Series oxygen concentrator model adopt NI-MH charge battery(3.6V/40mAh),it is welded on the main board and there is a charge circuitry in the board,so it could be used by a long time.But if you could not use the oxygen concentrator continually,the battery will be at the dormancy state and its life will be shorter.So,please charge the battery one time every month if you could not use the oxygen concentrator continually.

6、 If the user want the circuit diagram、the list of critical components、the detail of maintenance and repair,we will supply the data about all the repairable parts which we can supply .

10 Troubles and solution

No.	Trouble	Causes	Solution
1	No operation after power connected	1. No connection between circuit of oxygen generator and power 2. Circuit of fuse protector broken 3. Capacitor of compressor broken 4. Compressor broken	1. Check out whether switch, plug, power line in good connection. 2. Replace the fuse protector and find the cause 3. Replace start capacitor 4. Have the compressor replaced
2	No oxygen out or tiny outtake flow	1. Folded inside tube, no smooth outtake 2. Filter clogged, no smooth intake 3. The cover of dampen bottle leaking	1. Connect the tube again 2. Clean the filter 3. Take off the cover, screw well the cover, block the outtake by thumb after turning on, and there will some sound from the humidifier after 5 second around (the safety valve of humidifier turns on)
3	No exhaust sound	1. Air controller cannot work 2. Electrical control board cannot work	1.Have air control valve replaced 2.Have electric control board replaced
4	Too noisy exhaustion	1. The joint of exhaustion muffler fallen off 2. Exhaustion muffler broken	1. Connect the joint well 2.Have the muffler replaced