AirSep NewLife Elite, NewLife User manual

NewLife

®

Elite Service Manual

NewLife® Elite / NewLife
Oxygen Concentrator
Service Manual

®

0459

AirSep® Corporation

AirSep Corporation • 401 Creekside Drive • Buffalo, NY 14228-2085 USA

T elephone: [phone] • 24-Hour Fax: [phone]

NewLife

®

Elite Service Manual

Expedited Product Warranty Check service is always at your fingertips with AirSep:

Type www.airsep.info/warranty_check/main.asp

OR

In the US or Canada,

dial 866-873-9277

AirSep® is a registered trademark of AirSep Corporation.

!

NewLife® Elite and NewLife® are registered trademarks of AirSep Corporation.

MN105-1 Rev. B 03/06

AirSep® Corporation

T able of Contents

Section 1.0

Introduction

1.1 Equipment Provider Responsibility 1-1

1. 2 Important Notice and Symbol Explanations 1-2

1.3 NewLife

1.4 Functional Specifications 1-5

Section 2.0

Operation Check
and Oxygen
Concentration Test

2.1 Description of Operation 2-1

NewLife

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Elite/NewLife® Product Warranty 1-4

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Elite Service Manual

Section 3.0

Patient Instructions

Section 4.0

Equipment Provider
Maintenance

2. 2 Operation Check 2-1

2.3 Alarm System 2-2

2.3.1 Battery T est 2-2

2.3.2 Power Failure Alarm T est 2-2

2. 4 Oxygen Concentration T est and S pecification 2-3

3.1 General Instructions 3-1

3.2 Routine Maintenance by the Patient 3-1

3.2.1 Cleaning the Air Intake
Gross Particle Filter 3- 1

3.2.2 Checking the Alarm System Battery 3- 2

4.1 Routine Maintenance 4-1

AirSep® Corporation

4.1.1 Air Intake Gross Particle Filter/GPF 4- 1

4.1.2 Product Filter Replacement 4-1

4.1.3 Optional Filter Replacement 4-2

4.1.4 Battery Replacement 4-2

4.1.5 Recording Maintenance 4-3

4.2 Cleaning and Infection Control 4-3

4.2.1 Preparing for New Patient Use 4-4

i – table of contents

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NewLife

Elite Service Manual

Section 5.0

Service

5.1 Components 5-1

5.2 Cabinet Removal 5 -1

5.2.1 Removing Side Panel(s) 5-1

5.2.2 Removing Back Panel 5-1

5.2.3 Removing Lower Front Cover 5-1

5.2.4 Removing Control Panel 5-1

5.2.5 Superstructure 5-1

5.2.6 Caster Replacement 5-2

5.3 Compressor 5-2

5.3.1 Compressor Replacement 5-3

5.3.2 Capacitor Replacement 5-4

5.4 Solenoid Valves 5-4

5.4.1 Feed or Waste V alve Rebuilding 5-4

5.4.2 Feed or Waste V alve Reassembly 5-5

5.4.3 Solenoid V alve Coil Replacement 5-5

5.5 Sieve Bed Replacement 5-6

5.5.1 Sieve Bed Removal 5-6

5.5.2 Sieve Bed Installation 5-7

5.6 Cabinet Fan Replacement 5-7

5.7 Circuit Board Replacement 5-8

5.7.1 Circuit Board Removal 5-8

5.7.2 Circuit Board Installation 5-9

5. 8 Product Regulator Check and Setting 5-10

5.8.1 Setting Product Regulator for
Normal Operation 5-10

5.8.2 Product Regulator Lockout 5-10

5.8.3 Back Pressure Correction at 5 lpm 5-11

5.8.4 Product Regulator Cleaning or
Rebuilding 5-12

5. 9 High or Low Pressure Switch Replacement
(In Equipped Units) 5-13

ii – table of contents

5.10 Circuit Breaker Replacement 5-14

5.10.1 Circuit Breaker Removal 5-14

5.10.2 Circuit Breaker Installation 5-14

5.11 ON/OFF Power Switch Replacement 5-14

5.11.1 ON/OFF Power Switch Removal 5-14

AirSep® Corporation

Section 6.0

Troubleshooting

NewLife

5.11.2 ON/OFF Power Switch Installation 5-15

5.12 Buzzer Replacement 5-15

5.13 Hour Meter Replacement 5-15

5.14 Flowmeter Replacement 5-16

5.14.1 Flowmeter Removal 5-16

5.14.2 Flowmeter Installation 5-16

5.15 Power Cord Replacement 5-16

6.1 Operating Pressure T est 6-1

6.1.1 High Operating Pressure 6-1

6.1.2 Low Operating Pressure 6-2

6.2 General Troubleshooting 6-2

6.3 Troubleshooting Chart 6-4

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Elite Service Manual

Appendix

Exploded
Drawings

6. 4 T ool Kit and Pressure T est Gauge 6-7

Figure 1: Control Panel Assembly A-1
Figure 2: Main Structure Assembly A-2
Figure 3: Base and Cabinet Components A-3
Figure 4: Test Block Assembly A-4
Figure 5: V alve Block Assembly A-5
Figure 6: Compressor Assembly A-6
Figure 7: Adsorption Bed Assembly A-7

AirSep® Corporation

iii – table of contents

NewLife

®

Elite Service Manual

AirSep® Corporation

1.0 Introduction

1.1 Equipment Provider Responsibility

All Equipment Providers of the NewLife® Elite/NewLife® Oxygen Concentrator
must assume responsibilities for handling, operational check-out, patient instruc­tion, and maintenance. These responsibilities are outlined below and through­out this manual.

NewLife

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Elite Service Manual

WARNING

NewLife units must not be used for or with any life­supporting applications. Geriatric, pediatric, or any other
patients unable to communicate discomfort while using
this machine may require additional monitoring. Advise
patients to immediately notify their Equipment Providers
and/or physicians in case of an alarm or any discomfort.

As an Equipment Provider, you must do all of the following:

! Inspect the condition of each NewLife unit immediately upon delivery

to your business location. Note any sign of damage, external or inter­nal, on the delivery receipt, and report it directly to both the freight
company and AirSep Corporation immediately.

! Check the operation of each NewLife before delivery to a patient.

Always operate the unit for a reasonable length of time and check
that the oxygen concentration level is within specifications as referred
to in Section 2.4. (Test the battery and power disconnect alarm as
described in Section 2.3 of this manual.)

! Deliver NewLife units only to patients authorized by a physician’s

prescription. The NewLife must not be used as a life-supporting
device. A backup supply of oxygen must be available.

! Instruct patients how to use the NewLife in conjunction with the

Patient Manual.

! Instruct patients to notify their physicians and/or Equipment Provid-

ers if they experience any signs of discomfort.

! Instruct each patient how to perform routine maintenance of the air

intake gross particle filter and how to check the alarm system battery.
(Refer to Section 3.2.)

! Be available to service each patient at any time.
! Maintain the NewLife in accordance with Section 4.0.
! Repair components and replace parts only as outlined in this manual.

Use only AirSep parts for replacement in NewLife Oxygen Concentra­tors.

AirSep® Corporation

! Refer to the NewLife Product Warranty if parts replacement is re-

quired within the warranty period.

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Elite Service Manual

1.2 Important Notice and Symbol Explanations

As you read the manual, pay special attention to the WARNING, CAUTION,
and NOTE messages. They identify safety guidelines or other important informa­tion as follows:

WARNING: Describes a hazard or unsafe practice that can result in

severe bodily injury or death.

CAUTION: Describes a hazard or unsafe practice that can result in

minor bodily injury or property damage.

NOTE: Provides information important enough to emphasize or

repeat.

1-2

AirSep® Corporation

NewLife

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Elite Service Manual

The following harmonized symbols (pictograms), used for non­English language countries, will be located on the exterior of the
NewLife unit:

Read the Patient Instruction Manual.

No smoking within five feet of this device, oxygen­carrying tubing, or accessories.

No open flames within five feet of this device, oxygen­carrying tubing, or accessories.

No oil, grease or petroleum-based products on or near
the unit.

Oxygen outlet

Oxygen alarm

AirSep® Corporation

Nebulizer option

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NewLife

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Elite Service Manual

1.3 NewLife Product Warranty

AirSep Corporation warrants the NewLife Elite/NewLife Oxygen Concentrator
to be free from defect in parts and workmanship for one, three, or five years (as
specified on the original invoice provided) from the date of delivery to the origi­nal purchaser, under normal use and operation. AirSep Corporation’s obliga­tions under this warranty are limited to the repair or replacement of any such
item of equipment (or part thereof) shown to be defective or, at AirSep
Corporation’s option, to refunding the purchase price of any such defective item
of equipment.

Each item of equipment for which a warranty claim is asserted shall, at the re­quest of AirSep Corporation, be returned on a prepaid basis with proof of pur­chase date to the AirSep factory at the expense of the purchaser. The purchaser
will be responsible for return freight charges. Replacement parts shall be war­ranted as stated above for the unexpired portion of the original (one-, three-, or
five-) year parts warranty (as specified on the original invoice provided). This
warranty does not extend to any item or part subjected to misuse, accident, im­proper maintenance, or application, or which has been repaired or altered out­side of the AirSep Corporation Factory without the express prior written autho­rization of AirSep Corporation.

THE FOREGOING W ARRANTY IS IN LIEU OF ANY OTHER W ARRANTY , EXPRESSED OR
IMPLIED, IN F ACT OR IN LA W , INCLUDING WITHOUT LIMIT ATION THE WARRANTY OF
MERCHANT ABILITY OR THE WARRANTY OF FITNESS FOR P AR TICULAR PURPOSE. IT IS
EXPRESSL Y UNDERSTOOD THAT PURCHASER’S SOLE AND EXCLUSIVE REMEDY FOR
DEFECT IN P AR TS IS LIMITED TO ENFORCEMENT OF AIRSEP CORPORA TION’S OBLIGA­TION AS SET FORTH ABOVE, AND AIRSEP CORPORA TION SHALL NOT BE LIABLE TO
PURCHASER OR OTHERS FOR LOSS OF USE OF THE EQUIPMENT OR FOR OTHER SPECIAL,
INDIRECT , INCIDENTAL, OR CONSEQUEN-TIAL DAMAGES.

1-4

AirSep® Corporation

1.4 Functional Specifications

Dimensions: 28.5 in. high, 15.7 in. wide, 14.5 in. deep

(72.4 cm high, 40.0 cm wide, 36.8 cm deep)

Weight: 54.0 lb; shipping weight - 59.0 lb

(24.5 kg; shipping weight - 29.0 kg)

Electrical 120 VAC, 60 Hz, 4 amps, 350 watts
Requirements: 230 VAC, 50 Hz, 4 amps, 350 watts

Capacity: 5 liters per minute at 90% oxygen

(Based on 70°F [21°C] at sea level)

Accuracy: Flowmeter ±5% full scale. (Based on

precalibrated analysis.)

Concentration: 1–3 liters per minute at 95% + 0.5/ - 3%

4 liters per minute at 92% + 3.5/ - 3%
5 liters per minute at 90% + 5.5/ - 3%

Response Time: Allow 5 minutes to attain maximum oxygen concentra-

tion.

NewLife

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Elite Service Manual

Positioning: Operate the unit in an upright position, maintaining at

least six inches of open space on all sides for ventilation.

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AirSep® Corporation

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NewLife

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Elite Service Manual

AirSep® Corporation

NewLife

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Elite Service Manual

2.0 Operation Check and Oxygen Concentration Test

2.1 Description of Operation

Air enters the NewLife Oxygen Concentrator through an external air intake gross
particulate filter. This filtered air enters the compressor via a suction resonator,
which quiets the compressor’s suction sound. Pressurized air then exits the com­pressor and passes through a heat exchanger. The heat exchanger reduces the
temperature of the compressed air. Next, a two-way solenoid feed valve directs
the air into one of two sieve beds that contain molecular sieve. The unique prop­erty of molecular sieve enables it to physically attract (adsorb) nitrogen when air
passes through this material, thus producing high concentration oxygen.

There are two sieve beds: while one produces high concentration oxygen, the
other is purged of the nitrogen it adsorbed (collected) while it made oxygen. Each
adsorber produces oxygen for approximately eight seconds and delivers it to the
product tank. Oxygen exits the product tank through a pressure regulator, prod­uct filter, flow control valve, flowmeter, and finally exits the unit. The flow con­trol valve, which is part of the flowmeter, controls the amount of oxygen deliv­ered to the patient. The NewLife unit delivers up to 95.5% pure oxygen at flow
rates from 1–5 lpm.

NOTE: NewLife Elite OxiSilent™ option incorporates an additional felt intake
filter prior to air entering the compressor.

2.2 Operation Check

AirSep tests every NewLife Oxygen Concentrator thoroughly after manufacture.
You must perform the following test to ensure that no damage occurred in ship­ping or handling.

1 Open and inspect all cartons (that contain units) upon delivery. Un-

pack the unit and remove it from the carton. Inspect the unit itself for
damage. If the exterior of a unit’s carton is damaged, or the unit itself is
damaged, note it on the freight bill signed by the driver.

2 Plug in the power cord of the unit, and set the ON/OFF switch to the

ON position. Check to see that the following occurs:

a. A continuous alarm loudly sounds for approximately five

seconds to indicate that the battery for the alarm is good.
See the troubleshooting chart in Section 6.0 of this
manual if the unit’s alarm does anything other than
sound loudly for five seconds.

AirSep® Corporation

b. The compressor runs. Listen for the sound.
c. Exhaust air flows out of the bottom of the unit.

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Elite Service Manual

3 Turn the flowmeter adjustment knob counterclockwise until it stops

(wide open).

The maximum flow should register 5.5 lpm (the 5.5 lpm line should
appear to split the middle of the flowmeter ball) with no connections at
the oxygen outlet. If not, refer to Section 5.8.1 to set the product regula­tor.

4 Perform an oxygen concentration test, as described in Section 2.4.

2.3 Alarm System

The NewLife Oxygen Concentrator is equipped with a battery-powered alarm
system, which sounds a continuous and loud alarm when a power failure oc­curs. It sounds an intermittent alarm if the high or low pressure indicators are
activated or if the optional oxygen monitor detects lower than therapeutic levels
of oxygen concentration. The alarm remains on until you correct the alarm con­dition or you set the ON/OFF switch to the OFF position. Refer to Section 6.0 for
a list of probable alarm causes.

d. OPTIONAL: The Oxygen Monitor’s amber light remains

on until the oxygen concentration reaches 85% ± 3%
(approximately two minutes).

2.3.1 Battery Test

Each time the NewLife unit is turned on, a five-second audible alarm
sounds to indicate the condition of the battery.

NOTE

The audio alarm must sound loudly for approxi­mately five seconds each time the unit is turned to
ON to indicate the battery is in good condition.

2.3.2 Power Failure Alarm Test

To test the power failure alarm, take the following step:

Unplug the unit, and set the ON/ OFF switch to the ON
position.

This should immediately activate the audio alarm. If it does not, refer to
the troubleshooting chart in Section 6.0 of this manual.

2-2

AirSep® Corporation

NewLife

®

Elite Service Manual

2.4 Oxygen Concentration Test and Specification

To ensure that the unit’s output of oxygen is within specification, you
must perform a test of oxygen concentration. Test the unit upon deliv­ery to a patient and at periodic intervals. Equipment Providers, based
on their expertise and documentation, may establish and implement
their own protocol to check oxygen concentration. The interval estab­lished may be longer or shorter than 90 days, which is AirSep’s default
time period for providers who do not choose to establish their own pro­tocol.

1 If an oxygen humidifier bottle is used, remove it from the oxygen

outlet.

2 Connect a calibrated oxygen concentration analyzer to the oxygen

outlet.

3 Verify that the product flow rate delivered by the unit matches the

patient’s prescription and does not exceed the capacity of the unit.

4 Set the unit’s ON/OFF power switch to the ON position. (It takes

approximately five minutes for the oxygen concentration to stabi­lize.) Take oxygen concentration readings every 60 seconds until
the analyzer shows that two consecutive readings are the same.

5 Disconnect the oxygen analyzer, and reconnect the humidifier bottle

(if used) and any other equipment/ accessories that may be re­quired.

6 Adjust the flowmeter adjustment knob to the prescribed level.

NOTE

Do not measure oxygen concentration output
after the product stream passes through a humidi­fier bottle, or erroneous readings will result.

AirSep NewLife Oxygen Concentration Specifications

AirSep® Corporation

Liter
Flow Specification In Spec

1–3 lpm 95% + 0.5/ - 3% 92% or higher

4 lpm 92% + 3.5/ - 3% 89% or higher
5 lpm 90% + 5.5/ - 3% 87% or higher

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AirSep® Corporation

3.0 Patient Instructions

3.1 General Instructions

It is important that patients thoroughly understand how to operate the AirSep
NewLife unit. This enables proper treatment as prescribed by a qualified, licensed
physician. You must explain that the purpose of this therapy is to alleviate symp­toms. If patients experience any discomfort or the unit alarms, they must notify
their Equipment Provider and/or physician immediately.

You, as the Equipment Provider, are responsible to see that each patient receives
the Patient Manual. Locate the Patient Manual in the pocket on the back of each
unit. Explain each step in the operation of the unit to the patient in reference to
this manual.

3.2 Routine Maintenance by the Patient

To ensure accurate output and efficient operation of the unit, the patient must
perform two simple routine maintenance tasks:

NewLife

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Elite Service Manual

! Clean the air intake gross particle filter
! Check the alarm system battery

3.2.1 Cleaning the Air Intake Gross Particle Filter

NOTE

The patient must clean this filter weekly, as
described below. The filter may require daily
cleaning if the NewLife unit operates in a harsh
environment such as a house heated by wood,
kerosene, or oil, or one with excessive cigarette
smoke.

1 Remove the dirty air intake gross particle filter from the back

of the NewLife unit, and install the clean filter stored in the
pocket on the back of the unit.

AirSep® Corporation

2 Wash the dirty filter in warm soapy water, and rinse.
3 Use a soft absorbent towel to remove excess water.
4 Place the clean air intake gross particle filter in the pocket on

the back of the unit.

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NewLife

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Elite Service Manual

3.2.2 Checking the Alarm System Battery

The alarm system battery is tested each time the ON/OFF switch is set
to the ON position. A continuous alarm sounds for approximately five
seconds to indicate a good battery. If the alarm does anything other
than sound loudly for five seconds, instruct the patient to call the Equip­ment Provider immediately.

3-2

AirSep® Corporation

4.0 Provider Maintenance

4.1 Routine Maintenance

The NewLife Elite unit has two or three filters and a 9-volt battery that require
scheduled maintenance and replacement.

To ensure that the unit’s output of oxygen is within specification, you must per­form a test of oxygen concentration. Test the unit upon delivery to a patient and
at periodic intervals. Equipment Providers, based on their expertise and docu­mentation, may establish and implement their own protocol to check oxygen
concentration. The interval established may be longer or shorter than 90 days,
which is AirSep’s default time period for providers who do not choose to estab­lish their own protocol.

AirSep does not require preventative maintenance on the concentrator. You do
not need to perform any maintenance as long as the NewLife unit remains within
specifications at the desired flow rate.

4.1.1 Air Intake Gross Particle Filter/GPF

NewLife

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Elite Service Manual

The external air intake gross particle filter is located on the back of the
unit. You can easily remove it by hand. Instruct the patient to clean this
filter weekly. (Refer to Section 3.2.1.)

NOTE

The filter may require more frequent cleaning if
the NewLife unit operates in a harsh environment
such as a house heated by wood, kerosene, or oil,
or one with excessive cooking or cigarette smoke.

4.1.2 Product Filter Replacement

The product filter must be replaced after every 25,000 hours of use.

1 Set the unit’s ON/OFF switch to the OFF position, and unplug

the power cord.

2 Remove the side panels to locate the product filter.

NOTE

AirSep® Corporation

Observe the position of the filter before
removal.

3 Cut the tie-wraps, and separate the green tubing from both

sides of the filter.

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Elite Service Manual

4.1.3 Optional Filter Replacement

4 Install the new filter with the inlet side in the same position as

before. Push the tubing together so that the tubing overlaps
the product filter connections, and secure it with the tie-wraps.

5 Record information about the product filter replacement on

the History Record Label, which is discussed in Section 4.1.5.

6 Reconnect the back and side panels.

The optional internal felt filter requires changing every 5,000 hours of
use. See below on instructions for changing the filter.

1 Set the unit’s ON/OFF switch to the OFF position, and unplug

the power cord.

2 Remove right side panel to locate the felt intake filter.

3 Remove filter in the unit, and replace with a new filter.

4 Remove left side panel and record information about the filter

replacement on the History Record Label.

5 Reconnect both side panels.

4.1.4 Battery Replacement

Each time the NewLife unit is turned on, the alarm must sound loudly
for approximately five seconds to indicate a good battery. An alarm
that does anything other than sound loudly for five seconds indicates a
weak battery and requires replacement.

To replace the battery, take the following steps:

1 Set the unit’s ON/OFF switch to the OFF position, and unplug

the power cord.

4-2

2 Remove the left side panel.

3 Lift the battery out of the battery holder.

AirSep® Corporation

4 Install the new battery, maintaining proper polarity, and se-

cure it with the Velcro strap.

5 Set the ON/OFF switch to the ON position to test the alarm.

6 Record the battery replacement information on the History

Record Label.

7 Reconnect the side panel.

4.1.5 Recording Maintenance

As the Equipment Provider, you can record all routine maintenance
and repairs performed on the NewLife unit, including hours and dates
of service.

A History Record Label is located inside the unit. Keep this label current
to avoid unnecessary replacement of parts (i.e., product filter and bat­tery).

NewLife

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Elite Service Manual

4.2 Cleaning and Infection Control

With the growing concern about possible cross infection from home oxygen equip­ment (i.e., oxygen concentrators) from one home care patient to another, a clari­fication on this topic is necessary.

The organisms of most concern are M. Tuberculosis, HIV, and Viral Hepatitis.
These are potentially pathogenic.

Tuberculosis can survive outside of the human body, but its mode of transmis­sion is by droplet nuclei. When infected individuals cough, they release droplet
nuclei into the air, and these carry the Tuberculosis organism. These droplet nu­clei may be breathed in by another person, but prolonged exposure to the in­fected person is usually necessary for infection to occur.

HIV and Viral Hepatitis are both viruses, which are not living cells themselves
but which can duplicate when in a living “host” cell. Both of these organisms are
usually passed on by person-to-person contact, and both need to be in the hu­man body to survive. Once outside the body, viruses do not survive.

AirSep® Corporation

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4.2.1 Preparing for New Patient Use

When you remove the NewLife from a patient’s home, always dispose
of the used nasal cannula and humidifier bottle. Clean the exterior of
the NewLife with a soapy water solution or commercial cleaner to re­move any gross debris, organic or otherwise. Be careful not to get any
liquid into the interior of the unit.

Next, clean the exterior with either a common chemical disinfectant or
a bleach solution* before other patients use the unit. For the bleach solu­tion, wear eye and skin protection to prevent exposure to the chlorine.
Allow the NewLife to air dry, and then retest it before you return it to
inventory.

Clean the air inlet gross particle filter with warm soapy water between
each patient’s use. Clean this filter at least once per week, depending on
the environment, during normal operation.

Change the product filter after 25,000 hours of use. It is not necessary to
change this filter between patients even if the previous patient had a
communicable disease or infection.

________________________________

*Make the bleach solution a 1:100 dilution of 5.25% sodium hypochlorite. Mix one part household bleach (e.g.,
Clorox) with 99 parts cold tap water. To measure the solution easily, take 1/4 cup of household bleach, and mix it
with a gallon of cold tap water. Allow the mixture to sit on potentially contaminated surfaces for 10 minutes.

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AirSep® Corporation

5.0 Service

5.1 Components

The design of the AirSep NewLife Oxygen Concentrator allows for easy access
and removal of most components. This allows you to perform scheduled mainte­nance, repair, and replacement of parts with minimal time and effort.

NewLife

CAUTION

For your safety, be sure to set the ON/OFF switch to the
OFF position and unplug the power cord of the unit
before you service the NewLife Oxygen Concentrator.

NOTE

Record all scheduled maintenance. (Refer to Section 4.0.)

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Elite Service Manual

5.2 Cabinet Removal

5.2.1 Removing Side Panel(s)

To remove one or both side panels, unscrew the 1/4 turn fastener(s)
and remove the panel(s).

5.2.2 Removing Back Panel

Remove both side panels, and lift off the back panel. Make sure the
power cord can pass freely through the power cord cutout.

5.2.3 Removing Lower Front Cover

Firmly grasp panel with both hands, and slightly bow panel outward to
remove.

5.2.4 Removing Control Panel

Four screws hold the control panel in place. Remove them and the con­trol panel to re-install or replace if necessary.

5.2.5 Superstructure

AirSep® Corporation

The weight and forces of the internal components rest solely on three
parts: the superstructure, compressor plate, and the base. These parts
were specially designed and formed. They should never require replace­ment under normal use.

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5.2.6 Caster Replacement

1 Remove the cabinet panels to expose the caster nut.

2 Remove the caster nut with a 9/16-inch socket.

3 Install the new caster and washer, and tighten the nut.

4 Reconnect the cabinet panels.

5.3 Compressor

The compressor is the “pump” within the oxygen concentrator that pushes the
room air into the bottom of the sieve beds. This allows oxygen to flow out of the
top.

Use an extension for the two front caster nut removals.

Two different aspects of the compressor cause concern: the output and the sound
level.

! Output

Compressor output refers to how much compressed air the compressor
can produce. This depends upon the model of the compressor, stroke
size, bore size and cup seal condition. The cup seals form the seal be­tween the piston and the cylinder wall. As the cup seals wear, the
compressor’s output begins to gradually decrease. This reduction in com­pressor output results in less air for the sieve beds. Therefore, the pro­duction of oxygen decreases.

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 NewLife unit as long as
that unit’s oxygen concentration level at the prescribed liter flow rate
is within AirSep’s specifications. Refer to Section 2.4.

! Sound Level

The condition of the compressor’s bearings mainly determine its sound
level.

5-2

There are four bearings located within the compressor that allow the
inner components of the compressor to rotate. If the bearings wear to
the point that they become noisy, the compressor becomes noticeably
loud and needs servicing.

AirSep® Corporation

5.3.1 Compressor Replacement

Compressor Assembly Removal

To remove the compressor assembly for exchange, follow the steps listed
below:

1 Set the unit’s ON/OFF switch to the OFF position, and unplug

the power cord.

2 Remove the side and lower front panels.

3 Disconnect the suction tube.

4 Disconnect the blue compressor lead at the terminal strip and

the brown lead at the temperature switch.

5 Disconnect the two leads to the capacitor and remove if neces-

sary.

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6 Disconnect the compression fitting for the heat exchanger lo-

cated at the bottom center of the compressor.

7 Remove the two screws that connect the compressor plate to

the base of the unit, and lift up and slide out the compressor
assembly.

8 If needed, remove compressor from the plate by removing the

four compressor bolts.

Compressor Assembly Installation

To install the rebuilt compressor assembly, follow the steps listed below:

1 Perform the compressor removal procedure in reverse order.

2 Make sure to position the compressor’s lead wires behind the

braided suction tube.

3 Leak test all connections.

AirSep® Corporation

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5.3.2 Capacitor Replacement

The capacitor starts the compressor. If the compressor cannot start, the
capacitor may be defective and require replacement. To replace the
capacitor, take the following steps:

1 Set the unit’s ON/OFF switch to the OFF position, and unplug

the power cord.

2 Remove the side and lower front panels.

3 Disconnect the two leads to the capacitor and slide capacitor

out of the tie wrap holding it in place.

4 To install the new capacitor, connect the leads and slide the

capacitor into the tie wrap holding it in place.

5.4 Solenoid V alves

The NewLife uses 5 two-way solenoid valves: two feed, two waste, and one equal­ization. Each valve has an open (energized) and closed (de-energized) position.
As the NewLife operates, two valves are always energized.

The solenoid valves of the NewLife unit require no scheduled maintenance. If a
valve becomes noisy, you can easily replace the internal valve parts. To identify
the noisy valve, observe which green circuit board light illuminates at the time
of the noise. The lighting matrix on the circuit board corresponds to the valve
location.

5.4.1 Feed or Waste Valve Rebuilding

The two feed valves and two waste valves are located on the unified
valve block. This valve block does not require removal to rebuild a feed
or waste valve.

1 Set the ON/OFF switch to the OFF position, and unplug the

power cord.

2 Remove the side and back panels.

5-4

3 Remove the retaining cap from the appropriate valve with a

slotted-head screwdriver.

4 Lift off the solenoid coil.

AirSep® Corporation

5 Loosen and remove the solenoid base with a one-inch deep

well socket.

6 Install the rebuild kit, which contains all parts of the solenoid

assembly except the solenoid coil.

5.4.2 Feed or Waste Valve Reassembly

To reassemble the feed or waste valves, follow the feed or waste valve
rebuilding procedure in reverse order, and test for leaks.

5.4.3 Solenoid Valve Coil Replacement

If a solenoid valve coil does not operate, its corresponding green light on
the circuit board does not illuminate.

1 Set the ON/OFF switch to the OFF position, and unplug the

power cord.

NewLife

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Elite Service Manual

2 Remove the side and back panels.

3 Remove the retaining cap with a slotted-head screwdriver.

4 Disconnect the solenoid leads, and lift off the solenoid coil.

5 Replace with the new coil.

6 Reinstall the retaining cap back on top of the coil, and recon-

nect the solenoid leads.

7 Reconnect the back and side panels.

AirSep® Corporation

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5.5 Sieve Bed Replacement

WARNING

Do not refill the snap-ring-style sieve beds. Special
tooling is required to remove and re-install the spring­loaded top cap and snap-ring.

CAUTION

Do not expose molecular sieve (contents of bed) to air for
an extended period of time. Prolonged exposure of
molecular sieve to the moisture in room air results in
contamination and permanent damage to the sieve
material. Keep all openings to the sieve beds sealed.

NOTE

If replacement is necessary, you must replace both sieve
beds at the same time.

5.5.1 Sieve Bed Removal

1 Set the unit’s ON/OFF switch to the OFF position, and unplug

the power cord.

2 Remove the side and back panels.

3 Cut the tie-wraps at the brass “T” fitting, and disconnect the

green 1/4-inch product tubes.

4 Cut the tie-wraps at the top of the sieve beds, and disconnect

the green 1/4-inch equalization tubes.

5-6

5 Remove the 9/16-inch compression fitting on the bottom of

each sieve bed.

6 Cut the tie-wraps, and remove the sieve beds. Proper removal

of the sieve beds includes the product tubes.

7 Plug the opening on the top and bottom of the sieve beds.

AirSep® Corporation

5.5.2 Sieve Bed Installation

To install the sieve beds, follow the sieve bed removal procedure in re­verse order. It is very important to tighten all tubes to eliminate leaks.
However, do not over tighten.

To check for leaks, take the following steps:

1 Plug in the unit.

2 Set the unit’s ON/OFF switch to ON for three minutes with

the flowmeter closed to pressurize the system.

3 Set the unit’s ON/OFF switch to OFF, and unplug the power

cord.

4 Apply soapy water around the sieve bed tube connections, and

check for leaks.

NewLife

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Elite Service Manual

NOTE

Leaks can be so small in air loss that
oxygen concentration is not affected
immediately. The sieve material can
become contaminated gradually. Careful
leak testing is important.

5.6 Cabinet Fan Replacement

The cabinet fan for the NewLife is located in the back of the unit. Refer to the
troubleshooting chart in Section 6.0 of this manual for instances where replace­ment of the fan may be required.

To replace the cabinet fan in the NewLife unit, take the following steps:

1 Set the unit’s ON/OFF switch to the OFF position, and unplug the power

cord.

2 Remove the side and back panels.

AirSep® Corporation

3 Remove the two screws that hold the fan to the superstructure, and

remove the fan.

4 Disconnect the fan leads.

5 Position the new cabinet fan so that the air flow arrow points toward

the compressor and the electrical connections are in the bottom right
corner.

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6 Connect the fan leads, and install the cabinet fan screws.
7 Reconnect the back and side panels.

5.7 Circuit Board Replacement

The solid-state printed circuit board controls the sequential timing operation of
the five solenoid valves and the alarm system functions. The five-green-light
matrix corresponds to the valve configuration of the NewLife unit. Two green
lights should always illuminate and rotate (cycle) during normal operation.

A green light that fails to illuminate indicates a disconnected or faulty solenoid
coil or an electrical malfunction in that valve circuit. The two red lights indicate
high and low pressure.

Consult the troubleshooting chart in Section 6.0 to determine when to replace
the printed circuit board.

CAUTION

The Printed Circuit Boards (PCBs) contain components
that are sensitive to electrostatic discharge (ESD) and can
damage the board if not handled properly. As when
handling any ESD-sensitive PCB, observe standard ESD
safety procedures. These procedures include the follow­ing:

! Handle the PCB by the edges only.
! Work on a grounded ESD mat.
! Wear a grounded wrist strap.
! Store PCBs only in anti-static bags.

5.7.1 Circuit Board Removal

1 Set the unit’s ON/OFF switch to the OFF position, and unplug

the power cord.

5-8

2 Remove the side and back panels.

3 Disconnect the main power 10-pin connector from the circuit

board.

AirSep® Corporation

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NOTE

If a pressure transducer circuit board, cut
tie-wrap at circuit board and disconnect
green 1/4-inch tube. Plug/cap open end
of tube until new circuit board is re­placed.

4 Push in on the locking tab to the alarm 6-pin connector to dis-

connect it.

5 With a slotted screwdriver, push in on the board support tabs,

while you lift each corner of the circuit board.

6 Remove the circuit board.

NOTE

Handle the new circuit board only by the
edges to prevent electrostatic damage to
the unit.

5.7.2 Circuit Board Installation

NOTE

If a pressure transducer circuit board,
first reinstall 1/4-inch green tube with
new tie-wrap.

1 Push the circuit board on to the support tabs.

AirSep® Corporation

2 Firmly plug in the 6-pin connector to the circuit board so that

the connector’s locking tab locks against the circuit board.

3 Plug in the 10-pin connector.

4 Reconnect the back and side panels.

5-9

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5.8 Product Regulator Check and Setting

The product regulator enables you to set the maximum flow of oxygen output by
the NewLife unit. To check for proper adjustment of the product regulator, take
the following steps:

1 Set the ON/OFF switch to the ON position.

2 Allow the unit to run for three minutes.

3 Turn the flowmeter adjustment knob counterclockwise until it stops

(wide open).

4 The flowmeter ball centers itself on the 5.5 lpm line. If not, the product

regulator needs to be reset.

5.8.1 Setting Product Regulator for Normal Operation

Use the following procedure to reset the product regulator:

1 Disconnect the humidifier bottle, if used, and the tubing from

the oxygen outlet.

2 Plug in the unit.
3 Set the unit’s ON/OFF switch to the ON position, and allow

the unit to run at least three minutes to build up pressure.

4 Remove the right side panel.
5 Turn the flowmeter adjustment knob counterclockwise until it

stops (wide open).

6 Pull outward on the regulator knob to unlock it.
7 Turn the regulator knob or set screws until the flowmeter ball

centers on the 5.5 lpm line (clockwise to increase).

8 Push in the regulator knob to lock it.

5-10

9 Reconnect the side panel.

5.8.2 Product Regulator Lockout

Take the following steps to limit the maximum flow of oxygen concen­trator:

AirSep® Corporation

NewLife

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Elite Service Manual

NOTE

It may be desirable to provide one additional liter
of flow if you use the lockout feature.

1 Plug in the unit.

2 Set the unit’s ON/OFF switch to the ON position, and allow

the unit to run at least three minutes to build up pressure.

3 If used, connect the humidifier bottle, oxygen tubing, and can-

nula to the oxygen outlet.

4 Remove the right side panel.

5 Turn the flowmeter adjustment knob counterclockwise until it

stops (wide open).

6 Pull outward on the regulator knob to unlock it.

NOTE

When this lockout feature is no longer
required, follow the normal regulator
setting procedure, as described in Section

5.8.1.

7 Turn the regulator knob counterclockwise to decrease the set-

ting until the flowmeter registers the maximum flow desired.

8 Push in the regulator knob to lock the setting.

9 Reconnect the side panel.

5.8.3 Back Pressure Correction at 5 LPM

AirSep® Corporation

In some cases, additional lengths of oxygen tubing with a humidifier
bottle can increase back pressure and limit oxygen flow below 5 lpm.

To achieve 5 lpm, use the following procedure:

1 Plug in the unit.

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2 Set the ON/OFF switch to the ON position, and allow the unit

to run at least three minutes to build up pressure.

3 Connect the humidifier bottle, oxygen tubing, and cannula to

the oxygen outlet.

4 Remove the right side panel.

5 Turn the flowmeter adjustment knob counterclockwise until it

stops (wide open).

6 Pull outward on the regulator knob to unlock it.

7 Turn the regulator knob clockwise until the flowmeter ball cen-

ters on the 5.5 lpm line.

8 Push in the regulator knob to lock the setting.

9 Turn the flowmeter adjustment knob clockwise until the flow-

meter indicates 5 lpm.

10 Reconnect the side panel.

NOTE

When this back pressure correction at 5
lpm is no longer required, follow the
normal regulator setting procedure as
described in Section 5.8.1.

5.8.4 Product Regulator Cleaning or Rebuilding

Clean or rebuild the product regulator if the flowmeter ball fluctuates
more than 1/4 of a liter or if the regulator cannot be adjusted for lock­out.

1 Set the unit’s ON/OFF switch to the OFF position, and unplug

the power cord.

5-12

2 Remove the right side panel.

3 Use large pliers to unscrew the bonnet of the product regula-

tor, which contains a large spring.

AirSep® Corporation

NewLife

NOTE

Adjust the product regulator fully coun­terclockwise to unload the spring. This
makes disassembly and reassembly
easier.

4 Remove the diaphragm. (Clean or replace it.)

5 Use a Phillips-head screwdriver to unscrew the diaphragm stem

guide located in the center of the regulator body to gain access
to the seat.

6 Remove the seat. Be careful not to lose the spring located

behind the seat.

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Elite Service Manual

7 Clean or replace the seat.

8 With the spring behind the seat, screw the diaphragm stem

guide back into the body of the regulator. (Do not over tighten.)

9 Install a clean or replacement diaphragm.

10 Put the large spring and slip ring into the bonnet, and screw

the bonnet onto the regulator body.

11 Reset the product regulator as described in Section 5.8.1.

5.9 High or Low Pressure Switch Replacement
(In Equipped Units)

The high pressure switch is located closer than the low pressure switch to the
pressure test port. Remove it first to gain access to the low pressure switch.

1 Set the unit’s ON/OFF switch to the OFF position, and unplug the

power cord.

AirSep® Corporation

2 Remove the right side panel.

3 Disconnect the leads to the pressure switch.

4 Unscrew the pressure switch from the pressure test block.

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5 Install the new pressure switch, connect the leads, and leak test.

6 Reconnect the side panel.

5.10 Circuit Breaker Replacement

5.10.1 Circuit Breaker Removal

1 Set the unit’s ON/OFF switch to the OFF position, and unplug

the power cord.

2 Remove the left side panel.

3 Disconnect the circuit breaker leads.

4 Unscrew the circuit breaker while you apply pressure to the

circuit breaker retaining ring.

5.10.2 Circuit Breaker Installation

Follow the removal procedure for the circuit breaker in reverse order to
install the new circuit breaker.

5.11 ON/OFF Power Switch Replacement

5.11.1 ON/OFF Power Switch Removal

1 Set the unit’s ON/OFF switch to the OFF position, and unplug

the power cord.

2 Remove both side panels, the lower front panel, and the back

cover.

3 Unscrew the four Phillips-head screws that hold the control

panel to the superstructure.

4 Cut off the two white tie-wraps from the terminal strip leads.

5-14

5 Disconnect the ON/OFF switch leads from the back of the

switch.

6 Push on the back of the power switch, while holding in its

retaining tabs, and remove the switch through the front panel.

AirSep® Corporation

5.11.2 ON/OFF Power Switch Installation

Follow the removal procedure for the ON/OFF power switch in reverse
order to install a new power switch. Make sure to reinstall the switch
properly by having the “O” on the switch located on the bottom when
finished.

5.12 Buzzer Replacement

1 Set the unit’s ON/OFF switch to the OFF position, and unplug the power

cord.

2 Remove the left side panel.
3 Unscrew the two Phillips-head screws that hold the buzzer to the su-

perstructure, and solder to disconnect the buzzer leads.

4 Solder the leads to the new buzzer, and screw the buzzer to the super-

structure.

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Elite Service Manual

5 Reconnect the side panel.

5.13 Hour Meter Replacement

1 Set the unit’s ON/OFF switch to the OFF position, and unplug the power

cord.

2 Remove the left side panel.

3 Disconnect the hour meter leads.

4 Push hour meter mounting tabs to remove the hour meter through the

control panel.

5 Install the new hour meter into the control panel, making sure that the

“hourglass” icon displays on the bottom.

6 Reconnect the hour meter leads.

AirSep® Corporation

7 Reconnect the side panel.

8 Plug unit in and set the unit’s ON/OFF switch to ON. Hourglass icon

should flash showing it is functioning correctly.

5-15

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5.14 Flowmeter Replacement

5.14.1 Flowmeter Removal

1 Set the unit’s ON/OFF switch to the OFF position, and unplug

the power cord.

2 Remove the left side panel.

3 Cut the tie-wraps, and remove the 3/8-inch green oxygen tub-

ing from the flowmeter fittings.

4 Unscrew the flowmeter nuts with a wrench.

5 Remove the flowmeter through the control panel.

5.14.2 Flowmeter Installation

To install a new flowmeter, follow the flowmeter removal procedure in
reverse order. Then perform a leak test on the connections.

5.15 Power Cord Replacement

1 Set the unit’s ON/OFF switch to the OFF position, and unplug the power

cord.

2 Remove the side and back panels.

3 Open the plastic twist clamps.

4 Cut the tie-wraps (located near the power cord push-on connectors).

5 Disconnect the white and black power cord leads.

6 Lay the unit face down, and unscrew the two Phillips-head screws that

secure the power cord receptacle to the base of the unit.

5-16

7 Use a slotted-head screwdriver to break the receptacle seal.

8 Pull the receptacle forward until the back of the strain relief is visible.

9 Press both ends of the strain relief together with needle-nose pliers to

remove and save it for reuse.

AirSep® Corporation

NewLife

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Elite Service Manual

10 Pull the power cord through the opening on the power cord receptacle.

11 Using same distance located on old power cord, slide the strain relief

onto the new power cord with the lip of the strain relief facing the ends
of the power cord leads.

12 Insert the new power cord through the opening on the receptacle by

squeezing the strain relief together with pliers.

13 Position the strain relief upward, and push it into the rear of the power

cord opening on the receptacle.

14 Reconnect the power cord leads, close the plastic twist clamps, and re-

attach the tie-wraps.

15 Reconnect the power cord receptacle to the base of the unit with the

two Phillips-head screws.

16 Reconnect the side and back panels.

AirSep® Corporation

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AirSep® Corporation

6.0 Troubleshooting

6.1 Operating Pressure Test

Testing the operating pressure is a useful diagnostic tool when a concentrator
has low oxygen concentration and requires servicing. Units functioning nor­mally do not require operating tests.

Use the following procedure to test the operating pressure of the unit.

1 Set the unit’s ON/OFF switch to the OFF position, and unplug the power

cord.

2 Remove the right side panel.

3 Connect the pressure test gauge to appropriate test port location. (Some

models may require an additional test adapter (KI257-1) which allows
connecting directly to the 1/4-inch black pressure tubing from the valve
block.)

NewLife

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Elite Service Manual

4 Plug in the power cord, and set the unit’s ON/OFF power switch to the

ON position. Set the flowmeter to 5 lpm, and allow the unit to run at
least five minutes.

5 Observe the maximum and minimum readings on the pressure test gauge.

The maximum reading should not exceed 32 psig (220.6 kPa). The mini­mum reading should not be less than 10 psig (69 kPa).

NOTE

When you turn the unit on, the system pressure
always registers higher than normal for the first
few minutes of operation. Make sure the unit is
not in economy mode of operation if equipped.

6.1.1 High Operating Pressure

Higher than normal operating pressure may indicate any of the follow­ing:

AirSep® Corporation

! A restrictive blowdown muffler, which does not allow the waste

(purge) gas to exit the system freely.
Operate the unit with the blowdown muffler disconnected to see

if the operating pressure returns to normal.

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Elite Service Manual

6.1.2 Low Operating Pressure

! An improperly operating circuit board or solenoid valve.

Confirm that the circuit board and solenoid valves function
properly.

! Contaminated sieve beds.

Change the sieve beds.

Lower than normal operating pressure may indicate any of the follow­ing:

! A restriction in the suction resonator or optional air intake filter,

which limits the amount of room air available to the compressor.
Disconnect the braided suction tube at the compressor, and

allow the unit to operate without the suction resonator to see if
normal operating pressure returns.

! An improperly operating circuit board or solenoid valve.

Confirm that the circuit board and solenoid valves function
properly.

! A leak in the unit, which allows system pressure to escape.

Leak test the unit.

! A compressor with reduced output.

Ensure that the oxygen concentration level at the desired liter
flow is within AirSep’s specifications. If it is below specifications,
replace or repair the compressor.

! An obstructed or vertically positioned (ECOnomy mode)

EcoCheck valve.
For the EcoCheck valve (available only as an option for units

equipped with an oxygen monitor): confirm that the EcoCheck
valve is not obstructed or in the ECOnomy mode.

6.2 General T roubleshooting

6-2

Before reviewing the troubleshooting chart, the following steps may be useful
to isolate any malfunctions:

1 Turn the concentrator on. If unit does not turn on, refer to

troubleshooting chart.

AirSep® Corporation

NewLife

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Elite Service Manual

2 Make sure all filters are clean.

3 Turn flowmeter completely open, up to the highest setting. The

ball should rest at 5.5 lpm. If setting is not 5.5 lpm, adjust
regulator so that the ball is set at 5.5 lpm with the flowmeter
completely open.

4 Make sure the unit is cycling properly by following the green

valve lights on the circuit board. The lights should follow the
label below the circuit board and two lights should be acti­vated at all times. If the unit is not cycling properly, refer to
troubleshooting chart.

5 If concentrator is not meeting specifications, make sure that

the unit is leak free by testing all tubing connections and fit­tings with leak testing solution. Protect circuit board from so­lution and start leak test at the heat exchanger, following air
flow of unit to oxygen outlet. Repair all leaks by tightening
connections and fittings.

6 Set the concentrator at 5 lpm and connect pressure test gauge

to unit. Determine pressure parameters by observing high and
low pressure points on the gauge. If pressures are high or low,
refer to Section 6.1.

7 Review troubleshooting chart to isolate and repair any other

malfunctions.

AirSep® Corporation

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6.3 T roubleshooting Chart

Problem Probable Cause Solution

Compressor does not run. Constant No power to unit. Check wall outlet for power.
audio alarm with ON/OFF power
switch in ON position. Unit circuit breaker tripped or Reset or replace circuit breaker .

faulty .

Faulty electrical connections. Check electrical connections.

Defective circuit board. Check circuit board for two-light

rotation/replace circuit board.

Defective ON/OFF power Replace ON/OFF power switch.
switch.

Compressor runs with intermittent Defective high or low Replace and retest pressure
alarm. Oxygen concentration at pressure switch. switch.
5 LPM is within specifications.

Compressor shuts down Restricted air flow through Clean inlet filter, or remove
intermittently. unit. obstruction.

Unit overheating due to Locate unit away from heating
improper location. source, providing adequate

ventilation on all sides.

Defective cabinet fan. Replace cabinet fan.

Defective high temperature Replace high temperature switch.
switch.

Compressor does not start. ON/OFF Extreme cold start. Allow unit to reach room
power switch in ON position, temperature.
intermittent alarm, and cabinet fan
turns. Compressor thermally cut off Blocked air intake or defective

due to excessive heat. NOTE: cabinet fan/clear obstruction, or
It will not restart unit until it replace cabinet fan.
cools down.

Defective capacitor. Replace capacitor.

6-4

Defective circuit board. Check circuit board for two-light

rotation/replace circuit board.

Faulty electrical connection Check electrical connections for
for compressor. compressor.

Defective high temperature Replace high temperature switch.
switch.

AirSep® Corporation

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Problem Probable Cause Solution

Compressor runs with intermittent Leak. Leak test and repair leak.
low pressure alarm and low oxygen
concentration.

Defective circuit board. Check circuit board for two-light

rotation/replace circuit board.

Compressor runs with intermittent Defective sieve beds. Replace sieve beds.
high pressure alarm and low
oxygen concentration.

Faulty solenoid valve. Repair or replace solenoid valve.

Restriction in exhaust muffler . Replace or clean muffler.

Compressor relief valve releases Defective circuit board. Check circuit board for two-light
(popping sound). rotation/replace circuit board.

Defective solenoid valve. Repair or replace solenoid valve.

Contaminated sieve beds. Replace sieve beds.

Defective relief valve. Replace relief valve.

Faulty electrical connection at Repair electrical connection.
waste valve.

Constant alarm with ON/OFF Defective circuit breaker. Replace circuit breaker.
switch in ON position. Circuit
breaker repeatedly trips. Defective capacitor. Replace capacitor.

Defective compressor. Replace compressor.

Defective circuit board. Check circuit board for two-light

rotation/replace circuit board.

Faulty electrical connection. Repair electrical connection.

Alarm does not sound. Dead battery. Replace battery.

Incorrectly installed battery. Reinstall battery with correct

polarity .

AirSep® Corporation

Faulty electrical connection. Repair electrical connection.

Defective ON/OFF switch. Replace ON/OFF switch.

Defective buzzer. Replace buzzer.

Defective pressure switch. Replace and test pressure switch.

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Problem Probable Cause Solution

Flowmeter fluctuates. Improperly set or faulty product Check regulator setting/clean, repair,

regulator. or replace regulator .

Leak. Leak test and repair leak.

Worn compressor. Replace compressor.

Defective circuit board. Check circuit board for two-light

rotation/replace circuit board.

Defective flowmeter. Replace flowmeter.

Defective solenoid valve. Repair or replace solenoid valve.

Cabinet fan does not turn. Defective cabinet fan. Replace cabinet fan.

Defective electrical connections. Check electrical connections.

Limited or low flow. Restriction in humidifier or tubing. Replace humidifier or tubing.

Product regulator set too low. Adjust regulator setting.

Leak. Leak test and repair leak.

Weak compressor. Check system pressure, and

rebuild or exchange compressor.

Defective solenoid valve. Repair or replace solenoid valve.

Reduced air intake (suction). Check felt filter, suction resonator,

and suction tube for obstruction.

Defective circuit board. Check circuit board for two-light

rotation/replace circuit board.

Restriction in mixing tank. Replace tank.

Low oxygen concentration. Occluded internal felt filter. Replace felt filter.

Leak. Leak test and repair leak.

Weak compressor. Check system pressure, and rebuild

or replace compressor.

Unit’s temperature is too high. Blocked air intake or defective

cabinet fan.

Defective circuit board. Check circuit board for two-light

rotation/replace circuit board.

6-6

Contaminated sieve beds. Replace sieve beds.

Defective solenoid valve. Repair or replace solenoid valve.

Restriction in exhaust muffler. Replace or clean exhaust muffler.

Restriction in suction resonator. Check suction resonator and suction

tube for obstruction and remove.

Restriction in EcoCheck valve. Clean EcoCheck valve.

AirSep® Corporation

6.4 Tool Kit and Pressure Test Gauge

The tools needed for you to properly service the NewLife unit are listed below:
Large pliers, wire cutters, needle-nose pliers, slotted-head screwdriver, Phillips-

head screwdriver, ratchet, 8-inch adjustable wrench, 1-inch deep well socket, 9/
16-inch socket, 2-inch extension, 7/16-inch combination wrench, 9/16-inch com­bination wrench, and 5/8-inch combination wrench.

In addition, channel locks and a small slotted-head screwdriver may be recom­mended for some service procedures.

A pressure test gauge to read operating system pressures on the NewLife unit
should be kept available at all times.

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Elite Service Manual

AirSep® Corporation

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Appendix

!!

! Exploded Drawings

!!

Control Panel Assembly A-1
Main Structure Assembly A-2
Base and Cabinet Components A-3
Test Block Assembly A-4
Valve Block Assembly A-5
Compressor Assembly A-6
Adsorption Bed Assembly A-7

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AirSep® Corporation

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Ref. No.

Ref. No.

Ref. No.

Part No.

Part No.

Part No.

Description

Description

Description

Ref. No.

Ref. No.

Ref. No.

Part No.

Part No.

Part No.

Description

Description

Description

A-1

Figure A.1: Control Panel Assembly

AirSep® Corporation

Part No.Ref. No. Description DescriptionPart No.Ref. No.

Ref. No. DescriptionPart No. Ref. No. DescriptionPart No.

Part No.Ref. No. Description DescriptionPart No.Ref. No.

NewLife

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Elite Service Manual

AirSep® Corporation

Figure A.2: Main Structure Assembly

A-2

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Ref. No.

Ref. No.

Ref. No.

Part No.

Part No.

Part No.

Description

Description

Description

A-3

Figure A.3: Base and Cabinet Components

AirSep® Corporation

Ref. No. Part No. Description

Ref. No. Part No. Description

Part No.Ref. No. Description

NewLife

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Elite Service Manual

AirSep® Corporation

Figure A.4: Test Block Assembly

A-4

NewLife

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Elite Service Manual

Ref. No. Part No. Description

Ref. No. Part No. Description

Part No.Ref. No. Description

A-5

Figure A.5: Valve Block Assembly

AirSep® Corporation

NewLife

Ref No. Part No. Description

1 KI070-1 Kit, Vibration, Spring Mount includes bumpers/capacitor bracket (not shown)
2 SC003-2 #6 Phillips 3/8” Long
3 WA002-8 #6 Washer
4 CL007-1 Clamp, Hose 3/8”
5A HX002-1 Heat exchanger, Medserv
5B HX002-2 Heat exchanger (Elite)
6 F0104-1 Fitting, brass, Comp. Align. 3/8”
7 VA005-1 Valve relief, ¼ mpt
8 F0045-2 Fitting, brass, street elbow ¼” mpt
9 VA008-1 Valve, plug ¼ (EcoCheck only)
10 F0006-4 Fitting, Brass, DBL Barb ¼” x ½”
11A CO006-1R(T/N) Compressor Assy, Complete 120/60
11B CO006-4R(T/N) Compressor Assy, Complete 220/50
11C CO006-9R(T/N) Compressor Assy, Complete 220/50 Dual 6
11D CO006-10R(T/N) Compressor Assy, Complete 120/60 Dual 6

®

Elite Service Manual

AirSep® Corporation

Figure A.6: Compressor Assembly

A-6

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Ref. No.

Ref. No.

Ref. No.

Part No.

Part No.

Part No.

Description

Description

Description

A-7

Figure A.7: Adsorption Bed Assembly

AirSep® Corporation