DeVilbiss iGo 306 SERIES User manual

for qualified service personnel only
DANGER – NO SMOKING
CAUTION-Federal (U.S.A.) law restricts this device to sale by or on the order of a physician.
Made in the USA of US and Imported Parts.
devilbiss iGo®portable oxyGen system
service manual
MODEL 306 SERIES
FAA
for air travel!
Approved

2
LT-2044
TABLE OF CONTENTS
IMPORTANT SAFEGUARDS ....................................................................................... 3
GENERAL INFORMATION
Introduction ..................................................................................................... 4
Functional Description............................................................................................. 4
UNPACKING AND SET UP
Control Panel.................................................................................................... 4
Set Up & Operating Instructions ..................................................................................... 5
MAINTENANCE
Alert System .................................................................................................... 6
Periodic Provider Maintenance ...................................................................................... 6
Provider's Notes ................................................................................................. 7
TROUBLESHOOTING
System Operation ................................................................................................ 8
Normal Operating Sequence........................................................................................ 8
Simplified Troubleshooting ......................................................................................... 9
COMPONENT DESCRIPTION AND FUNCTION
2-Way Proportional Valve .......................................................................................... 11
4-Way Valve .................................................................................................... 11
Accumulator Tank ................................................................................................ 11
Battery Pack .................................................................................................... 11
Cover.......................................................................................................... 11
Compressor..................................................................................................... 11
Final Bacteria Filter ............................................................................................... 11
Intake Silencer/Filter .............................................................................................. 11
Molecular Sieve Beds ............................................................................................. 11
Motor Control Board .............................................................................................. 11
Motor Mount System .............................................................................................. 11
Pressure Regulator ............................................................................................... 11
Printed Circuit Board (PC Board) .................................................................................... 11
Pressure Switch ................................................................................................. 11
Purge Valve ..................................................................................................... 11
Sieve Bed Check Valves ........................................................................................... 11
COMPONENT TESTING, REPAIR, AND REPLACEMENT
Proper Repair and Replacement Procedures ........................................................................... 12
Keypad/Light Panel ............................................................................................... 12
Battery Pack .................................................................................................... 13
Covers ......................................................................................................... 13
Control Panel.................................................................................................... 13
Exhaust Muffler .................................................................................................. 14
Hour Meter ..................................................................................................... 14
Motor Mounts ................................................................................................... 14
Oxygen Outlet ................................................................................................... 14
ORDERING INFORMATION AND PARTS LIST
DeVilbiss Customer Service Contact Information ........................................................................ 15
Ordering Replacement Parts........................................................................................ 15
Parts List ....................................................................................................... 15
SPECIFICATIONS................................................................................................ 16
SYMBOLS & DEFINITIONS ........................................................................................ 17
FIGURES, DIAGRAMS, AND VIEWS
Index .......................................................................................................... 17
Diagrams ....................................................................................................... 18
Figures/Views ................................................................................................... 20
GUIDANCE AND MANUFACTURER’S DECLARATION ................................................................. 31

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3
IMPORTANT SAFEGUARDS
IMPORTANT SAFEGUARDS
When using electrical products, especially when children are present, basic safety precautions should always be followed. Read all
instructions before using. Important information is highlighted by these terms:
DANGER Urgent safety information for hazards that will cause serious injury or death.
WARNING Important safety information for hazards that might cause serious injury.
CAUTION Information for preventing damage to the product.
NOTE Information to which you should pay special attention.
Important safeguards are indicated throughout this guide; pay special attention to all safety information.
Refer to the A-306-1 or A-306-2 Instruction Guide for iGo set up and operation.
READ ALL INSTRUCTIONS BEFORE USING.
SAVE THESE INSTRUCTIONS
DANGER
• DANGER - NO SMOKING
• Oxygen causes rapid burning. DO NOT SMOKE WHILE SERVICING YOUR DEVILBISS OXYGEN EQUIPMENT. Keep matches,
cigarettes, burning tobacco and candles away from the area in which the system is operated or stored. Do not operate in rooms
heated by parafn or portable gas heaters.
• To reduce the risk of re, burns, or injury to persons: Oxygen, though non-ammable, vigorously supports and accelerates
burning of any ammable material. High concentrations of oxygen can cause rapid burning. Service and operate the equipment in
a well-ventilated area.
• Keep the iGo at least 5 feet (1.6 m) from hot, sparking objects or naked sources of ame. The iGo should be located so as to
avoid pollutants or fumes.
• Use NO oil or grease: A spontaneous and violent ignition may occur if oil, grease, or other petroleum substances come into
contact with oxygen under pressure. Keep these substances away from the oxygen system, tubing and connections, and any
other oxygen source. DO NOT use any petroleum based or other lubricants.
• Avoid creation of any spark near oxygen equipment. This includes sparks from static electricity created by any type of friction.
• Never use aerosol sprays or ammable anesthetics near the equipment.
WARNING
• DO NOT service this equipment without rst reading and understanding the safeguards and instructions in the instruction
guide and this service manual.
• DO NOT allow unauthorized or untrained individuals to service the equipment.
• DO NOT operate the iGo or accessories in standing water and DO NOT submerse or expose to water. Electric shock or damage
to the unit may result.
• Protect the Battery and Power Adapters from uid spills or drips to avoid possible shock hazards.
• The Rechargeable Battery may explode and cause potential injury if exposed to or disposed of in a re.
• DO NOT short circuit the battery’s metal contacts with metallic objects such as keys, paperclips, or coins. It may cause sparks
or excessive heat.
• DO NOT disassemble, puncture, or crush the Battery. Rechargeable Battery electrolytes may be toxic if swallowed and can be
harmful to skin and eyes. Use of a damaged Battery may cause personal injury. Keep the Battery away from children.
• This device contains electrical and/or electronic equipment. Follow local governing ordinances and recycling plans regarding
disposal of device components.
• Electric shock hazard. Disconnect the power cord from the wall outlet before attempting repairs on the unit. Extra care should
be taken if it is necessary to operate the unit with the cover removed. There are no serviceable parts in the adapters; do not
open.
• Equipment not suitable for use in the presence of a ammable anesthetic mixture with air or with oxygen or nitrous oxide.
CAUTIONS
• Do not operate the iGo in an area where the air may be contaminated with carbon monoxide or hydrocarbons as this may shorten the life
of the unit (i.e. near running gasoline engines, furnace, or heater).
• Do not place this device near other equipment or devices that create or attract electromagnetic elds. Placing the unit in electromagnetic
elds greater than 10 V/m can affect its operation. Examples of such equipment are debrillators, diathermy equipment, cellular
telephones, CB radios, radio-controlled toys, microwave ovens, etc.
• Use only the AC Adapter and DC Adapter supplied with the iGo. Use of another power supply will void the warranty. Do not use
replacement parts, accessories, or adapters other than those authorized by DeVilbiss. Do not use regenerated sieve material.
• DO NOT expose the iGo, Rechargeable Battery, or accessories to temperatures outside of specied operating or storage temperatures
as this may cause damage.
DANGER
NO SMOKING

4
LT-2044
GENERAL INFORMATION | UNPACKING AND SET UP
GENERAL INFORMATION
Introduction
Refer to the instruction guide (A-306-1 or A-306-2) for set up and
operating instructions. This service manual is designed to provide
DeVilbiss Healthcare qualied service technicians and homecare
providers with the proper maintenance and safety procedures for
the DeVilbiss iGo Portable Oxygen System. Please read and
understand all the information contained in the instruction guide
and this service manual before attempting to operate or perform
any maintenance.
DeVilbiss reserves the right to alter or change the design of the
DeVilbiss Portable Oxygen System. Hence, slight differences in
construction or components may exist between the unit in hand and
that which is described in this manual.
Functional Description
The 306 series is a portable medical oxygen concentrator designed
to deliver either a continuous ow (CF) of oxygen—up to 3 liters
per minute (LPM), or a bolus of oxygen upon inhalation
(PulseDose® mode)—equivalent to 1-6 LPM CF, through an oxygen
outlet. The unit contains an able/disable feature for locking and
unlocking the ow settings in both modes.
In PulseDose mode, a pressure switch detects inhalation as a
reduction in cannula pressure and opens a demand ow valve that
delivers the prescribed bolus of oxygen before the patient begins
exhalation. The iGo accommodates breath rates up to 40 breaths
per minute (BPM) at settings 1-4, 37 BPM at setting 5, and 31 BPM
at setting 6, and requires the use of a nasal cannula: mouth
breathing is not compatible with PulseDose operation.
NOTE–If the pressure switch does not detect a breath within 30
seconds while the unit is operating in PulseDose mode, the iGo
sounds an audible alert every 3 seconds for one minute with a
blinking yellow light. If breathing is not detected after one minute,
the unit switches to Continuous Flow mode and the CF light
illuminates clearing the No Breath Detected alert.
UNPACKING AND SET UP
Control Panel
306D-037 Rev C
LPM
124b 4a 6b
7
6a
5a5b
34c
1. Power button – turns the system ON or OFF
2. No Breath Detected light (PulseDose mode ONLY) –
illuminates intermittently and an audible alert sounds every 3
seconds, if the iGo is operating in PulseDose mode and does
not detect a breath for 30 seconds. If a breath is detected
during the alert, the alert condition is cleared. If a breath is not
detected during the alert, the unit changes to continuous ow
mode after 60 seconds of alerting.
NOTE–Once the unit changes to continuous ow, use the
Mode Select button to change back to PulseDose.
3. External Power light – illuminates when the iGo system is
connected to either AC or external DC power.
Power Fail alert – illuminates intermittently with an audible
alert for 15 minutes. Pressing the Power button stops the alert.
4a. Green Normal Oxygen light – illuminates when the iGo
delivers 84% or greater oxygen purity.
4b. Yellow Low Oxygen light – illuminates if the iGo delivers 76%
to 83% oxygen purity.
4c. Red Service Required light – illuminates with an audible alert if
the iGo delivers 75% or less oxygen purity or if component
failure is detected.
5a. Mode Select button – selects the mode of oxygen delivery
(PulseDose or Continuous Flow).
5b. Flow Indicator light – in PulseDose mode, pulses ON with
every breath; in Continuous Flow mode, illuminates
continuously
6a. Flow Rate Indicator lights – illuminate the ow rate at which
the iGo is set to deliver oxygen.
6b. Flow Rate Control buttons – increase or decrease the ow
rates in PulseDose (1 to 6 LPM) or Continuous Flow (1 to 3
LPM) as ordered by the physician.
7. Battery Charge lights – indicate the battery pack’s charge
status.
• When the battery is fully charged, all six lights illuminate.
As the battery discharges, the lights turn off one by one.
Each illuminated light indicates approximately 45 minutes
of battery charge at 2 LPM in PulseDose mode.
• When the battery is charging, the lights illuminate in a
cycle pattern.
• When the battery has approximately 10% of capacity, a
yellow battery light illuminates with a single audible alert.
• When the battery is depleted, the unit enters Power Fail
alert.

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5
UNPACKING AND SET UP
Set Up & Operating Instructions
Refer to the instruction guide (A-306-1 or A-306-2) for set up
and operating instructions. An overview is below:
CAUTION–The plug on the DeVilbiss iGo is a three-prong plug that
must be connected to a grounded receptacle.
CAUTION–Replace the power cord if it is damaged.
NOTE–Every time a button is pressed or a change to the power
source occurs, the iGo gives a short audible beep.
Press the Power button and hold for one second to turn iGo ON.
All the lights on the control panel illuminate briey and an audible
alert sounds momentarily. Some lights will remain illuminated;
others will not.
When using AC Power:
In PulseDose mode: After a few seconds, the External Power,
Normal Oxygen, and Flow Rate lights will remain lit. The Flow
Indicator light pulses ON with each breath. If a battery is installed,
the Battery Status lights illuminate to indicate battery charge level
or cycle to indicate battery is charging.
In Continuous Flow mode: After a few seconds, the External
Power, Normal Oxygen, Flow Indicator, and Flow Rate lights will
remain lit. If a battery is installed, the Battery Status lights
illuminate to indicate battery charge level or cycle to indicate
battery is charging.
When using External DC (car adapter)
Power:
DO NOT leave the iGo or DC Adapter plugged into the vehicle
without the engine running or attempt to start the vehicle
while the DC Adapter is connected. This may drain the
vehicle’s battery.
In PulseDose mode: After a few seconds, the External Power,
Normal Oxygen, and Flow Rate lights will remain lit. The Flow
Indicator light pulses ON with each breath. If a battery is installed,
the Battery Status lights illuminate to indicate battery charge level.
The battery will not charge while operating on External DC power.
In Continuous Flow mode: After a few seconds, the External
Power, Normal Oxygen, Flow Indicator, and Flow Rate lights will
remain lit. If a battery is installed, the Battery Status lights
illuminate to indicate battery charge level. The battery will not
charge while operating on External DC power.
When using Internal DC (battery) Power:
In PulseDose mode: After a few seconds, the Normal Oxygen and
Flow Rate lights will remain lit. The Battery Status lights illuminate
to indicate battery charge level. The Flow Indicator light pulses ON
with each breath.
In Continuous Flow mode: After a few seconds, the Normal
Oxygen, Flow Rate, and Flow Indicator lights will remain lit. The
Battery Status lights illuminate to indicate battery charge level.
NOTES:
• When turned on, the iGo will START at the last mode and ow
setting used.
• Continuous Flow mode provides a continuous supply of
oxygen at a specied ow level.
• PulseDose mode provides a bolus of oxygen at a
specied ow level when a breath is detected. An alert
will beep after 30 seconds if a breath is not detected. If
30 additional seconds elapse with no breath detected,
the unit automatically switches to continuous ow mode
at the last continuous ow setting used.
• PulseDose mode increases the amount of operating time
when using battery power.
• PulseDose delivers oxygen in a very short puff. It does not
deliver oxygen continuously. The length of time that
PulseDose delivers oxygen will not vary from breath to breath.
The time is set in correlation to the PulseDose setting.
• PulseDose is designed to prevent the delivery of pulses more
than every 2 seconds. If the breath rate is greater than the
maximum breathing rate, this feature prevents delivery of
excessive oxygen by not dosing on every breath.
Verify that the ow rate is on the correct prescription
setting or use the Flow Rate Setting buttons to adjust the
ow rate
NOTE–You may lock the ow so that it cannot be changed from the
prescribed setting: First set the continuous ow rate to the
prescribed setting, then set the PulseDose ow rate. Turn the unit
OFF and while OFF, press and hold the Mode Select button for 5-6
seconds. A short beep will sound when the lock is complete. Verify
that the settings are locked. To unlock the settings: With the unit
OFF, press and hold the Mode Select button for 5 to 6 seconds.
The unit will beep when the unlocking takes affect. Verify that the
lock is inactive.

6
LT-2044
MAINTENANCE
MAINTENANCE
Alert System
The iGo alert system is comprised of both visible and audible alerts
which signal a malfunction in operation. The alerts are energized
by an on-board power supply without the need for a battery.
Oxygen Purity:
The DeVilbiss iGo is equipped with a DeVilbiss oxygen sensing
device (OSD®). The device continuously monitors the oxygen purity
of the gas delivered to the oxygen outlet port. Depending on the
purity of the gas sensed, the alert activates as follows:
• 84% or greater Oxygen purity - Green Normal Oxygen light
• 76% to 83% Oxygen purity - Yellow Low Oxygen light
• 75% or less Oxygen purity - Flashing Red Service Required
light and audible beeping; unit will continue to run
Electronic Diagnostics:
If a problem is detected with the electronics, the Red Service
Required light illuminates continuously with an intermittent audible
alert and the unit shuts down.
Low Flow:
In Continuous Flow mode if the ow rate drops below 0.3 LPM for
approximately 16 seconds or more, the Red Service Required light
and the Flow Indicator light toggle and an audible alert sounds
intermittently.
High Temperatures:
1. If the internal gas temperature exceeds 55°C, the audible alert
sounds intermittently while the Red Service Required light
illuminates continuously and the unit shuts down.
2. If the temperature sensor in the motor circuitry reaches
approximately 70°C during operation, the compressor shuts
down followed by the Red Service Required light illuminating
continuously and the audible alert sounding intermittently.
Power Fail:
1. With a charged battery installed – If the unit is running and
external power is lost, the unit will automatically utilize the
battery power. The only indications will be a short beep of the
audible alert and the external power LED will turn off.
2. Battery not installed or discharged battery – If the unit is
running and external power is lost, the unit will stop operating.
If the power is lost for more than 10 seconds then every 3
seconds the External Power light will illuminate while sounding
the audible alert. This alert will last for 15 minutes or until the
ON/OFF button is pressed.
3. While running on battery only – If the battery becomes fully
discharged or is removed from the unit, the unit will alert the
same as in #2.
NOTE–The Power Fail alert can be stopped by pressing the ON/
OFF button. This will also prevent the unit from automatically
starting with the return of power to the unit.
Power Resumed:
If power returns while the unit is alerting for a power fail or after the
15 minutes of Power Fail alert, the unit will begin operating again
at the same settings prior to the power fail.
No Breath Detected:
In PulseDose mode if no breath is detected for 30 seconds while
the unit is ON, the iGo sounds an audible alert every 3 seconds for
one minute and illuminates the Yellow No Breath Detected light
intermittently. If no breath is detected during the alert period, the
unit automatically switches to continuous ow mode, illuminates the
Continuous Flow light continuously and turns OFF the Yellow No
Breath Detected light.
Battery Status:
• A series of six lights display the battery capacity: All 6 lights
illuminate green when fully charged. As battery becomes
depleted, the top lights will go out. When battery reaches its
lowest operating level, the lowest light will turn yellow and one
short audible alert will sound.
• Each green light indicates approximately 45 minutes of
operation at 2 LPM in PulseDose mode.
• The yellow light with a single audible alert indicates
approximately 10% of battery capacity remains.
• An External Power light and an audible alert every 3 seconds
indicates a depleted battery. See Power Fail alert.
• The lowest battery status light ashing yellow indicates a
battery issue:
• If the yellow light ashes for less than 10 minutes, the
battery was overly discharged and has gained sufcient
charge to regain normal operation.
• If the yellow light ashes for more than 10 minutes, the
battery is malfunctioning.
• The lights cycle when battery is being charged.
Periodic Provider Maintenance
Summary
3 years: Inspect intake silencer/lter—replace as needed
Check oxygen concentration.
6 years: Inspect nal bacteria lter—replace as needed
Full Details
Every DeVilbiss Oxygen Concentrator is tested at the factory. To
ensure continued trouble-free performance, perform the following
preventative maintenance during periodic oxygen patient visits.
Failure to properly maintain the unit will void the warranty.
NOTE–The following schedule is based on an expected usage of
5,000 hours per year and a normal, clean operating environment.
The homecare provider should adjust the schedule based on the
specic operating environment.
1. Check the oxygen concentration with an oxygen analyzer
every 3 years.
a. Calibrate the oxygen analyzer, using the manufacturer’s
procedure, prior to checking the oxygen concentration.
NOTE–Changes in temperature, altitude, or humidity may
affect the analyzer’s oxygen concentration reading. The
analyzer should be calibrated in conditions similar to the
location of the concentrator.
b. Set the ow to 3 LPM @ Continuous Flow mode and run
the concentrator for a minimum of 20 minutes before
checking the oxygen concentration.

LT-2044
7
MAINTENANCE
c. Connect the analyzer to the unit’s oxygen outlet port and
wait until the display stabilizes.
d. Record the reading.
2. Check the audible alert and indicator lights every 3 years by
turning the power switch ON and verifying that the audible
alert and the front panel indicator lights are operating.
3. Inspect intake silencer/lter (part# 306DS-616) every 3 years.
Replace as necessary.
a. Unplug the unit and remove the battery.
b. Remove the cover.
c. Remove the intake silencer/lter.
d. Install the new intake silencer/lter.
e. Replace the cover and battery.
4. Inspect the nal bacteria lter (part# PV5LD-651) every 6
years. Replace as necessary or in conjunction with
compressor service.
a. Unplug the unit and remove the battery.
b. Remove the cover.
c. Remove the hose from each end of the lter and discard
the lter.
d. Install the new nal bacteria lter with the IN tting
toward the Tee Fitting.
e. Replace the cover and battery.
CLEANING
WARNING
Electric shock hazard. Do not apply liquid directly to the cover
or utilize any petroleum-based solvents or cleaning agents.
Electric shock hazard. Disconnect the power cord from the
wall outlet before attempting repairs on the unit. Extra care
should be taken if it is necessary to operate the unit with the
cover removed. There are no serviceable parts in the adapters;
do not open.
CAUTION–Use of harsh chemicals, including alcohol, is not
recommended. If bactericidal cleaning is required, a non-alcohol
based product should be used to avoid inadvertent damage.
1. Turn the iGo OFF and disconnect from AC or External DC
power before cleaning. Select one of the following options:
2. Clean the iGo exterior cover using a damp cloth with a mild
household cleaner and wipe it dry. Do NOT spray cleaner
directly onto unit.
a. If the battery is installed on the iGo, clean it while it is
installed using a damp cloth with a mild household
cleaner and wipe dry. Do NOT spray cleaner directly
onto unit.
b. If the battery is removed from the iGo, clean the
unattached battery and the battery bay using a dry cloth
only. Do NOT use a wet or damp cloth in the battery bay
or on the unattached battery. Do NOT spray cleaner
directly onto unit.
Provider’s Notes - Cleaning and
Disinfection When There is a Patient
Change
NOTE–If the following described complete processing of the
concentrator by a qualied DeVilbiss provider/technician is not
possible, the device must not be used by another patient!
When medical devices have already been used with a patient,
contamination with human pathogenic germs should be assumed
(unless there is evidence to the contrary), and the next patient,
user or third party should be protected by appropriate handling and
preparation. Therefore, when there is a patient change, people
must be protected during the transport and handling of the device,
and the device must be fully processed, i.e., cleaned and
disinfected, by suitably trained personnel before reuse to protect
the next patient. The complete processing may only be done by the
manufacturer or by a qualied DeVilbiss provider/service
technician.
DeVilbiss Healthcare recommends that at least the following
procedures be carried out by the manufacturer or a qualied third
party between uses by different patients.
NOTE–If preventive maintenance is due at this time, these
procedures should be carried out in addition to the servicing
procedures.
1. Dispose of all accessory components that are not suitable for
reuse, i.e., particularly the oxygen tubing, the nasal cannula/
mask, oxygen outlet connector and humidier bottle.
2. CAUTION–The concentrator must be disconnected from
the power supply for this step: Open the concentrator and
remove all dust deposits inside the cabinet with an appropriate
vacuum cleaner.
3. Clean and disinfect all parts of the cabinet inside and outside
and the power cord with a suitable disinfecting agent, e.g.,
Microbac Forte, Terralin®, Aldahol, Cidex OPA or Peract.
4. Check the cord, the plug on the back of the device, the power
switch, the fuse holder and the indicator light for possible
damage.
5. Replace all damaged or worn components.
6. Replace the cabinet air lter on the back of the device.
7. Check the oxygen concentration. If the device is within
specications, the extended life intake bacteria lter does not
need to be replaced between patients. If the concentration is
not within specications, the provider should refer to the
service manual section on Troubleshooting.

8
LT-2044
TROUBLESHOOTING
TROUBLESHOOTING
System Operation
The DeVilbiss iGo Portable Oxygen System uses a pressure-swing
adsorption system. Air is drawn through lters into a double-head,
pressure-vacuum compressor. The pressure and vacuum created
in the compressor are cycled through a 4-way valve that directs the
pressure to one sieve bed while directing vacuum to the other. A
pressure transducer monitors the accumulator tank and triggers the
valve to direct the pressure/vacuum to the alternate sieve beds
when the tank reaches the specied shift pressure.
The sieve beds contain a synthetically-produced silicate molecular
sieve material with the unique ability to selectively adsorb nitrogen
from the air. As one bed pressurizes and adsorbs nitrogen, the
other bed vacuums forcing the previously adsorbed nitrogen to
exhaust through the valve and an exhaust mufer. During each
pressure-vacuum cycle, a small amount of oxygen from the
pressurizing bed travels to the vacuuming bed through a purge
valve helping to release the nitrogen from the sieve material. The
beds continue to alternately pressurize and vacuum as the unit
operates.
Oxygen leaving each sieve bed travels through a check valve into
the accumulator tank. A pressure regulator on the tank controls the
pressure of the oxygen as it leaves the tank and enters the OSD®
oxygen sensing device where it is checked for purity. From the
OSD, the oxygen travels to a proportional valve, which adjusts the
ow rate of the oxygen so that the level prescribed by the physician
is delivered accurately. Oxygen leaves the proportional valve and
passes through the nal bacteria lter and the oxygen outlet port to
the patient.
The iGo incorporates power efciency routines. The PC board
adjusts cycle shift pressures and compressor speeds, as needed,
to consume the least amount of power, while maintaining oxygen
delivery with higher than 90% purity levels.
The PC board also activates the electronic alert system. See Alert
System under Maintenance in this manual.
Normal Operating Sequence
When the concentrator is turned ON @ 3 LPM, the following
cycling sequence can be observed by attaching pressure gauges
to the sieve bed test points.
1. The PC board cycles the 4-way valve quickly several times, to
relieve residual bed pressure and prevent a static condition in
the compressor, and opens the proportional valve to relieve
any residual pressure elsewhere in the system. During this
time the PC board conducts a test of the control panel and
audible alerts.
2. The PC board powers the compressor and sets the
proportional valve to the desired ow rate.
3. The PC board removes voltage from the 4-way and purge
valves. The right bed, as viewed from the front of the unit,
pressurizes while the left bed evacuates to approximately 17
in-Hg.
4. When the accumulator tank reaches the shift pressure, the PC
board applies voltage to the purge valve for 0.8 seconds
sending a small amount of oxygen to the left bed to help
release the nitrogen from the sieve material.
5. The PC board applies voltage to the 4-way valve and removes
voltage from the purge valve causing the left bed to pressurize
while the right bed evacuates.
6. When the accumulator tank reaches the shift pressure the PC
board applies voltage to the purge valve for 0.8 seconds
sending a small amount of oxygen to the right bed to help
release the nitrogen from the sieve material.
7. The cycle repeats beginning with step 3.

LT-2044
9
TROUBLESHOOTING
Simplified Troubleshooting
The following troubleshooting chart will help you analyze and correct minor iGo malfunctions. If the suggested procedures do not help, call
your DeVilbiss provider. Do not attempt any other maintenance at this time.
SYMPTOM POSSIBLE CAUSE REMEDY
Unit not operating. No lights
illuminated and nothing
happening when power button
pressed.
1. Power button was not held.
2. No external power and no charged
battery installed.
3. Check ribbon connector.
4. Unit malfunction.
1. Press Power button and hold for one second.
2. Plug into external power or install charged battery.
3. Reconnect connector.
4. Contact DeVilbiss.
Unit not operating. External
Power light ashing with
audible alert. Power Fail alert
activated.
1. AC power cord not properly inserted into
wall outlet or DC adapter not attached.
2. Charged battery not installed or
defective battery
3. No power at wall outlet.
4. Faulty AC Adapter.
5. Faulty DC accessory power port outlet.
6. Faulty DC Adapter.
1. Check power cord connection at the wall outlet and
adapter connection to iGo.
2. Install charged battery or contact your provider for a
replacement battery.
3. Check the home circuit breaker and reset if necessary.
Use a different wall outlet if the situation occurs again.
4. Contact your DeVilbiss provider.
5. Check automotive fuse.
6. Contact your DeVilbiss provider.
If the above remedies do not work, contact DeVilbiss.
Unit set for PulseDose mode:
No Breath Detected light
ashing and audible alert
sounding.
OR
Unit changed to Continuous
Flow automatically.
1. Cannula is not adjusted properly.
2. Obstructed cannula or oxygen tubing.
3. Tubing/cannula too long.
4. Humidier attached.
5. Low ow cannula being used.
6. Atmospheric Pressure Port obstructed.
7. Tubing inside unit is kinked.
8. Patient not candidate for PulseDose
delivery.
1. Check all cannula connections to make sure they are
tight and adjust the cannula to t comfortably. Ensure
tubing is not kinked.
2. Detach cannula. If proper ow is restored, clean or
replace if necessary. Disconnect the oxygen tubing at
the oxygen outlet. If proper ow is restored, check
oxygen tubing for obstructions or kinks. Replace if
necessary.
3. Replace with shorter tubing/cannula.
4. Remove humidier. (PulseDose does not operate with
humidier)
5. Replace with standard cannula.
6. Remove obstruction.
7. Unkink tubing.
8. Use CF delivery for patients that fail to trigger
equipment (e.g. mouth breather with closed soft
palate.)
If the above remedies do not work, contact DeVilbiss.
Cannot change the ow rate. 1. Flow rate is locked.
2. Ribbon connector cable is disconnected.
3. Unit malfunction.
1. Unlock ow rate.
2. Reconnect cable to circuit board.
3. Contact DeVilbiss.
Oxygen level out of
specication.
Intake silencer/lter is blocked. Replace intake silencer/lter. If the above remedies do not
work, contact DeVilbiss.
Yellow Low Oxygen light
illuminating.
OR
Red Service Required
illuminating and audible alert
sounding. External Power
and/or Battery Power lights
illuminating. Unit is operating.
1. Air lter is blocked.
2. Exhaust is blocked.
3. Intake silencer/lter is blocked.
1. Check the air lter. If the lter is dirty, wash it following
the cleaning instructions.
2. Check the exhaust area; make sure there is nothing
restricting the unit exhaust.
3. Replace intake silencer/lter.
If the above remedies do not work, contact DeVilbiss.
Red Service Required light
illuminating. External Power
and/or Battery Power lights
illuminating. Audible alert
sounding. Unit not operating.
1. Air lter is blocked.
2. Exhaust is blocked.
3. Unit is overheated.
4. Intake silencer/lter is blocked.
1. Check the air lter. If the lter is dirty, wash it following
the cleaning instructions.
2. Check the exhaust area; make sure there is nothing
restricting the unit exhaust.
3a. Allow unit to cool and try again.
3b. Move unit to cooler location.
4. Replace intake silencer/lter.
If the above remedies do not work, contact DeVilbiss.

10
LT-2044
TROUBLESHOOTING
SYMPTOM POSSIBLE CAUSE REMEDY
Power Fail alert activated:
External Power light ashing
and audible alert sounding.
1. Battery completely discharged.
2. Lost external power without battery
installed.
1. Recharge battery.
2. Install battery or plug into external power.
Red Service Required light
ashing. Flow
Indicator light ashing. Audible
alert sounding. Unit operating.
Blocked or defective cannula or oxygen
tubing
1. Detach cannula. If proper ow is restored, clean
cannula or replace if necessary.
2. Disconnect the oxygen tubing at the oxygen outlet. If
proper ow is restored, check oxygen tubing for
obstructions or kinks. Replace if necessary.
Unit not operating when used
with charged battery. Power
Fail alert activated: External
Power light ashing and
audible alert sounding.
Battery is overheating. 1. Allow battery to cool.
DC Adapter attached. Unit
operating from Battery or not
operating. External Power
light is not illuminated
1. Poor connection to DC power source.
2. Vehicle power source (vehicle accessory
connector) dropped too low for the DC
Adapter.
3. Fuse in vehicle is blown.
1. Ensure the DC accessory power port outlet is clean
and a good connection can be made. Insert the DC
Adapter into the vehicle’s DC accessory power port
outlet.
2. If the vehicle power source drops too low for the DC
Adapter, the iGo will revert to Battery operation (if
present) or will cease operation until power is restored.
3. Check the fuse and replace if necessary.
Audible alert sounds
intermittently when operating
from DC Adapter.
1. Vehicle not running.
2. Poor connection to DC power source.
3. Vehicle electrical system overloaded or
defective.
1. Start vehicle.
2. Ensure the DC accessory power port outlet is clean
and a good connection can be made. Insert the DC
Adapter into the vehicle’s DC accessory power port
outlet.
3. Have a qualied auto technician check electrical
system while iGo is attached.
Lowest Battery Status light is
Yellow. Unit beeps once.
Battery needs to be charged. 1. Plug unit into AC power or replace discharged battery
with charged battery.
2. Plug unit into DC accessory power port outlet to
operate unit. NOTE–Battery will not recharge on DC
power.
Battery Status lights never
indicate fully charged.
1. Battery needs to be reconditioned.
2. Defective battery.
1. Fully discharge battery then recharge.
2. Contact DeVilbiss.
Yellow Battery Status light
ashing.
Unit is equipped with built-in battery test
and the battery pack is being checked.
If light ashes longer than 10 minutes, battery is defective.
Contact DeVilbiss for a replacement.
Short battery run time. 1. Battery needs to be reconditioned.
2. Air lter is blocked.
3. Exhaust is blocked.
4. Intake lter silencer is blocked.
1. Perform a complete discharge and then a 100%
charge of the battery.
2. Check the air lter. If the lter is dirty, wash it following
the cleaning instructions.
3. Check the exhaust area. Make sure there is nothing
restricting the unit exhaust.
4. Replace the intake silencer/lter. If the above remedies
don’t work, contact DeVilbiss.
Unit is noisy. 1. Intake silencer/lter is missing or not
installed correctly.
2. Exhaust mufer is missing or not
installed correctly.
1. Install intake silencer/lter until fully seated in the
gasket.
2. Install exhaust mufer until fully seating in tting.
Any other issues. Contact DeVilbiss.

LT-2044
11
COMPONENT DESCRIPTION AND FUNCTION
COMPONENT DESCRIPTION AND
FUNCTION
2-Way Proportional Valve
A 2-way proportional valve ensures that the selected ow rate is
delivered to the patient in either Continuous Flow or PulseDose
mode. When the unit is in PulseDose mode, the pressure switch
triggers the proportional valve to deliver the correct bolus of oxygen
for the selected ow rate.
4-Way Valve
The 4-way valve directs the pressure and vacuum created in the
compressor to the two sieve beds in alternating cycles. The cycle
shift is controlled by the PC board and occurs when a pre-
determined pressure is reached in the accumulator tank.
Accumulator Tank
The accumulator tank holds the concentrated oxygen and releases
it to the patient at a specied liter ow.
Battery Pack
The battery pack contains two rechargeable lithium ion batteries of
22 nominal volts, 9 amp-hours of total capacity and allows the iGo
to operate free of connection to an external power source. After
300 charge/discharge cycles, the battery’s capacity may drop to
about 80% of the original capacity. A variety of factors, such as age
of battery, ow rate, and PulseDose or Continuous Flow Mode
operation, determine the duration of operating time; operating time
will degrade with Battery use and age. The following table provides
estimates of amount of time that a new, fully charged iGo Battery
will operate.
Typical New Battery Operation Time
Flow Rate Continuous Flow PulseDose (20 BPM)
1.0 4.0 hours 5.4 hours
2.0 2.4 hours 4.7 hours
3.0 1.6 hours 4.0 hours
4.0 — 3.5 hours
5.0 — 3.2 hours
6.0 — 3.0 hours
NOTE–Be sure to check the battery charge level before travel;
battery will discharge over time.
Cover
The external plastic cover parts are molded of impact resistant and
ame retardant plastic resin and held in place by six T-20 screws.
Compressor
A dual-head compressor creates pressure and vacuum
simultaneously and is driven from a single brushless DC motor
whose speed is regulated by the motor control board.
Final Bacteria Filter
The nal bacteria lter prevents contaminants from reaching the
patient through the oxygen supply.
Intake Silencer/Filter
The intake silencer/lter lters the air drawn into the compressor
removing particulate matter and reduces the sound of the intake.
The silencer/lter should be inspected every 3 years and replaced if
needed.
Molecular Sieve Beds
Molecular sieve beds contain a synthetic alumino-silicate that
attracts and holds nitrogen in a magnetic bond. Two molecular
sieve beds work in tandem: one bed removes nitrogen from the air
passing through it while the other bed releases the removed
nitrogen back into the room air.
Moisture or hydrocarbons contaminate molecular sieve material
causing it to lose its nitrogen adsorbing properties, which in turn
decreases the oxygen concentration. To allow the iGo to exhaust
these possible contaminants, anytime the unit is started, it should
run for a minimum of 20 minutes before it is turned OFF.
Motor Control Board
The motor control board controls the motor speed of the DC
brushless compressor. The control board also monitors the
compressor’s temperature and speed and communicates that
information to the PC board.
Motor Mount System
There are two types of motor mounts used in the iGo: Black rubber
mounts connect the compressor to the bracket; spring mounts
connect the bracket to the base of the cover.
Pressure Regulator
The pressure regulator stabilizes the ow of oxygen to the patient
and establishes back pressure on the system. It is preset at 5 psi
(34.5 kPa) and should not need adjustment in the eld.
Printed Circuit Board (PC Board)
The printed circuit (PC) board monitors and controls the operation
of the iGo, including cycling pressure and vacuum between the two
sieve beds and initiating visible and audible alerts if abnormal
operation is detected. The OSD is located on, and controlled by,
the PC board.
Pressure Switch
When the iGo is operating in PulseDose mode, a pressure switch
detects inhalation as a reduction in cannula pressure and opens a
2-way proportional valve that delivers the prescribed bolus of
oxygen as the patient begins inhalation. If the pressure switch does
not detect a breath at least every 30 seconds, it triggers a No
Breath Detected alert. If it does not detect a breath after another
minute, it automatically switches the unit into continuous ow
mode.
Purge Valve
Before the 4-way valve cycles pressure and vacuum to alternate
sieve beds, the PC board activates the purge valve for 0.8
seconds. During this time, the purge valve sends oxygen from the
pressurizing bed to the evacuating bed breaking any remaining
nitrogen bonds and cleaning the bed in preparation for its upcoming
pressure cycle.
Sieve Bed Check Valves
Check valves, located between the outlet of each sieve bed and
the accumulator tank, allow oxygen to pass from the sieve beds to
the accumulator tank, but prevent the reverse ow of oxygen from
the accumulator to the sieve beds.

12
LT-2044
COMPONENT TESTING, REPAIR, AND REPLACEMENT
COMPONENT TESTING, REPAIR, AND
REPLACEMENT
At this time, DeVilbiss recommends limited replacement of
components and no testing or eld repair of components for the
306 iGo unit. When testing, repair and replacement restrictions are
removed, an updated service manual will be published.
Proper Repair and Replacement
Procedures
When servicing any DeVilbiss oxygen concentrator, be absolutely
certain that the correct tools are used and that the parts are free of
oil and grease or any material not compatible with oxygen. Teon®
tape is recommended and must be applied to the male threads,
omitting the rst thread to eliminate the possibility of tape particles
entering the oxygen system.
A service kit (part #444-501) containing the necessary gauges,
tools, and testing instruments to properly service all DeVilbiss
oxygen concentrators is available. In addition, service personnel
need an oxygen analyzer (part #R217P62 & R218P12) to
periodically check oxygen concentration levels and a voltmeter to
obtain more accurate voltage readings.
The following parts are included in the service kit:
1Slotted bit
1#1 Phillips bit
1#2 Phillips kit
17/16” Socket 1/4” Drive
1Crescent wrench
18” Duckbill pliers
1T-10 Bit
1AC/DC test meter
11/4” Ratchet wrench
13mm Hex bit
1T-15 Torx “L” wrench
110mm Socket 1/4” Drive
11/4” Drive extension
1Plastic storage case
1Plastic error indicator tool
15/32” Allen bit
15/64” Allen bit
19/64” Allen bit
17/64” Allen bit
1Torx screwdriver w/bits
1Tool box
2* Test Fittings (part #303DZ-637)
2* Pressure/Vacuum gauge (part #PVO2D-601)
• Parts that are also sold separately.
WARNING
Electric shock hazard. Disconnect the power cord from the
wall outlet and remove the battery from the unit before
attempting repairs on the iGo. Extra care should be taken if it
is necessary to operate the unit with the cover removed. There
are no serviceable parts in the adapters; do not open.
CAUTION–Do not apply leak test solution to any of the electronic
components, including the OSD, PC board and motor control
board.
NOTE–After replacing a component, run the unit for 20 minutes
and then check the oxygen concentration and test for leaks.
NOTE–Test for leaks using a certied leak detection solution such
as SWAGELOK MS-Snoop® or equivalent. Do NOT use a solution
that contains ethylene glycol. Apply leak test solution to all ttings
and hose connections with the unit running. If an air leak is present,
the solution will bubble. All leaks should be repaired before putting
the concentrator back in service.
Read all of the steps involved before beginning any of the
procedures in this manual.
Note the correct position of parts before removing them from
the unit.
Keypad/Light Panel
1. Remove back case and push front case forward, noting the
orientation of the ribbon cable’s connection to the PC board,
including position of its black traces. Note the position of the
intake and nal bacteria lters and orientation of tubing.
Remove cable from PCB (gure 1).
1
2. Loosen key pad/light panel with a narrow-bladed at-head
screw driver and use pliers to pull pad/panel and cable off the
case (gure 2).
2
3. Remove backing from the new key pad/light panel (gure 3).
NOTE–DO NOT BEND OR FLEX new key pad/light panel at
any time. It may break imbedded wiring!
3
4. Slide the cable through the slot in the front case and align the

LT-2044
13
COMPONENT TESTING, REPAIR, AND REPLACEMENT
pad/panel above indented area on front cover. Carefully place
the pad/panel onto the case. NOTE–PULLING THE PAD/
PANEL from the case to reset may break imbedded wiring!
5. To increase adherence: Press the pad/panel rmly from its
middle to its edges; then, press around, but not on, all buttons
and lights.
6. Insert the ribbon cable into the ribbon connector using the
same orientation as the previous cable (gure 1).
PRE-TEST: Attach AC adapter mains to the iGo unit (gure 4).
Green External Power LED should light. Press the ON/OFF button
on the panel. All LEDs should light momentarily. Press plus (+) and
minus (-) buttons and ow mode button. All appropriate reactions
should occur. Remove power from the unit and disconnect the AC
adapter.
4
7. Align the nal bacteria lter parallel to the intake lter and tuck
the oxygen outlet tubing under the accumulator tank tubing
before securing front case to unit (gure 5).
5
8. Before securing the back case to unit, ensure that the ribbon
cable has room to move inside the case during travel without
dislodging and that no wires or tubing will be harmed when
the case is closed. Return intake lter to handle.
Battery Pack
WARNING
Do not open the battery pack. There are no serviceable parts
in the battery pack. All batteries must either be returned for
service or disposed of properly as designated by local
authorities.
To remove or replace the battery pack:
1. If the battery has been removed from the battery cavity on the
back of the iGo, go to step 4.
2. If the battery is attached to the iGo concentrator, press down
on the latch at the top of the battery pack. The battery pack
will release from the concentrator approximately one inch and
sound a short beep.
3. With a rm hold on the battery pack, pull the pack away from
the concentrator out of the two slots that hold the bottom of
the pack onto the concentrator.
4. To replace the battery pack, position the pack so that the latch
at the top of the battery pack faces away from the battery
cavity.
5. Insert the tabs on the bottom of the battery pack into the slots
in the bottom of the cavity and push the top of the battery
pack into the cavity. The iGo will sound a short beep and the
battery pack will ‘click’ into a latched position.
Covers
To remove the covers:
1. Ensure that all power is removed from the unit.
2. Remove the six screws that hold the cover to the internal
structure.
NOTE–All six screws are T-20 with accommodation for at
head drivers. Two screws are in the bottom front cover, two
are in the handle cavity behind the air lter, and two are at the
bottom of the battery cavity.
3. Lift the back cover off the unit and place it aside.
4. Push the top of the front cover away from the unit and
disconnect the hose from the nal bacteria lter that connects
to the outlet port.
5. Disconnect the control panel ribbon connector cable by gently
pulling it up and out of the connector on the PC board.
6. Lift the front cover off the unit and place it aside.
To replace the covers:
1. Ensure that all power is removed from the unit.
2. Ensure that all tubing is free of kinks and that all tubing and
electronic harnesses and connectors are in proper position
inside the unit.
3. Position the front cover in front of the compressor and connect
the tubing from the nal bacteria lter to the outlet port and
the control panel ribbon connector cable to the connector on
the PC board. Be sure there are no twists in the cable when
connected
4. Lift the bottom edge of the front cover onto the base and,
using the sieve beds for support, carefully push the cover into
place over the interior components, making sure that the
tubing and electronic harnesses and connectors are not
kinked, the nal bacteria lter is properly positioned, and that
the power connector ts into the cover properly.
5. Screw the bottom of the front cover into place.
6. Position the back cover onto the base and push the two
covers together, making sure that the tubing and electronic
harnesses and connectors are not caught in the covers, that
the battery connectors clear the holes in the cover, and that
the power connector ts into the cover properly.
7. Holding the covers together, replace the screws in the handle
of the back cover rst and then the screws in the bottom of
the cover.
8. Replace the air lter in the handle cavity.
Control Panel
CAUTION–Do not bend or crease the new control panel. Electronic
components and connections in the panel can be broken.

14
LT-2044
COMPONENT TESTING, REPAIR, AND REPLACEMENT
To remove or replace the control panel:
1. Remove covers from the unit.
2. Disconnect the control panel ribbon connector cable.
3. Warm the control panel using a hair dryer or a heat gun to loosen
the adhesive.
4. Peel the control panel from the cover pulling the ribbon connector
cable through the opening in the cover.
NOTE–Use a thin or sharp edged instrument to lift an edge of the
panel if it does not peel off the unit easily.
5. Remove the paper backing from a new panel.
6. Insert the ribbon connector cable through the opening in the cover
and carefully position the panel over the cover touching the center
of the panel into place on the cover and pressing the edges of the
panel into place from the center out.
NOTE–If the panel is not smooth, warm the adhesive, lift that
section of the panel and press it back onto the cover from the
center out.
7. Replace covers and ensure air lter is in place in the handle cavity.
Exhaust Muffler
To remove and replace the exhaust mufer:
1. Remove covers from the unit.
2. Unscrew the exhaust mufer from the compressor housing.
3. Replace the exhaust mufer.
4. Replace covers and ensure air lter is in place in the handle cavity.
Hour Meter
To replace the hour meter:
1. Remove covers from the unit.
2. Disconnect the hour meter from the connector below the PC board.
3. Lay the unit down so that the PC board is facing up.
4 Release the top or bottom of the hour meter from the bottom cover
using a thin, at-bladed instrument.
5. Holding the released edge away from the cover, pry the opposite
edge of the hour meter out of the cover using the same instrument.
6. Press the new hour meter into the opening and connect to the PC
board.
7. Replace covers and ensure air lter is in place in the handle cavity.
Motor Mounts
To replace the motor mounts:
1. Remove covers from the unit.
2. Lay the unit onto a at surface with the compressor facing up and
remove the hex nuts from the base of the unit using a 3/8 inch nut
driver.
3. Stand the unit upright and push the compressor mounting plate
toward the top of the unit, until the mounts are released from the
base, then tilt the compressor and lift it out of the unit, with the
mounting plate and spring mounts attached.
4. Remove the 3 hoses after noting the orientation of the hoses and
the clamps.
5. Remove the remaining three hex nuts from the top of the mounting
plate and pull the mounts off the plate.
7. Insert the new motor mounts into the mounting plate and fasten
them in place with the hex nuts.
8. Lift the compressor into the unit with the bottoms of the mounts
tting into the screw holes in the base.
9. Reattach hoses and clamps; ensure they are oriented correctly.
10. Lay the unit down with the compressor facing up and fasten the
hex nuts onto the mount screws on the bottom of the base.
11. Replace covers and ensure air lter is in place in the handle cavity.
Oxygen Outlet
To replace the oxygen outlet:
1. Remove covers from the unit.
2. Remove the tubing from the oxygen outlet.
3. Remove the hex nut holding the oxygen outlet on the cover using a
½ inch nut driver.
4. Remove the oxygen outlet.
5. Replace the oxygen outlet by reversing the above steps, making
sure to position the replacement oxygen outlet in the cover so that
the long tting is on the outside of the cover.
6. Replace covers and ensure air lter is in place in the handle cavity.

LT-2044
15
ORDERING INFORMATION AND PARTS LIST
ORDERING PARTS
DeVilbiss Customer Service Contact Information
Customer Service (USA): 800-338-1988 / 814-443-4881, [email protected]
International Department: 814-443-4881, [email protected]
Europe: [phone]
Ordering Replacement Parts
Order parts and literature from your DeVilbiss provider. To expedite the process, be prepared to provide the following information:
• Account and ship-to numbers
• Ship-to address
• Part numbers and/or descriptions
• Quantity required
• Unit catalog number
• Unit serial number
• Hours of operation
ACCESSORIES
306DS-651 AC Charger/Adapter
306DS-652 DC Adapter
306D-413 Rechargeable Battery Pack
306DS-627 Humidier Kit (1 each remote stand and
humidier adapter)
Salter Labs 7600
or equivalent
Bubble Humidier
444-507 Elbow Humidier Adapter Kit
306DS-635 Deluxe Rolling Carry Case
306DS-626 Detachable Wheeled Cart
A-306-1 & A-306-2 Instruction Guide
306CH iGo Battery Charger
306DS-655 iGo Accessory Bag
POWER CORDS
306DS-601 USA Power Cord
306DS-602 Continental Europe Power Cord
306DS-603 UK Power Cord
306DS-604 Australia Power Cord
306DS-605 China Power Cord
FILTERS
306DS-611 Air Filter
PV5LD-651 Final Bacteria Filter
TOOLS
R217P62 &
R218P12
Oxygen Analyzer
303DZ-637 Pressure Test Assembly
PVO2D-601 Pressure Vacuum Gauge
444-501 Service Kit
COMPONENTS (currently available)
306DS-633 Base Kit
303DZ-628 Cover Screws
306DS-606 Carton w/ Shipping Inserts
306DS-631 Front Cover Kit
306DS-632 Rear Cover Kit
PV5LD-617 Hour Meter
306DS-615 Control Panel
306DS-609 Motor Mount Kit
306DS-616 Intake Silencer/Filter
306DS-612 Exhaust Mufer
4650D-609 Battery Bumpers (push-in feet used in battery
compartment)
306DS-654 Replacement Feet Kit
There are many types of humidiers, oxygen tubing and cannulas/
masks that can be used with this device. Certain humidiers and
accessories may impair the device’s performance. Use only standard
nasal cannula capable of supporting a minimum ow rate of 10 LPM
with PulseDose delivery. Do not use pediatric (low-ow) nasal cannula
or mask with PulseDose delivery. A mask or any nasal cannula can be
used with continuous ow delivery and may be sized according to
your prescription as recommended by your homecare provider who
should also give you advice on the proper usage, maintenance, and
cleaning.
NOTE–The oxygen supply accessory (patient tubing) shall be
equipped with a means that in case of re stops the delivery of
oxygen to the patient. This means of protection should be located as
close to the patient as practicable and not adversely affect the
delivery of oxygen during normal use in either continuous ow or
PulseDose modes of operation.
PARTS LIST

16
LT-2044
SPECIFICATIONS
SPECIFICATIONS
Dimensions (H x W x D)......................................................................................15 inches x 11 inches x 8 inches (38.0 cm x 28.0 cm x 20.0 cm)
Weight .................................................................................................................................................................... 19 pounds (8.6 kg) with Battery
15.5 pounds (7.0 kg) without Battery
Flow Rate Settings .......................................................................................................................................................... 1 to 6 in PulseDose Mode
1 to 3 LPM in Continuous Flow Mode
Maximum Recommended Continuous Flow (@ nominal outlet pressures of 0 and 7 kPa) ...........................................................................3 LPM
Maximum Breathing Rate (PulseDose mode only) ..............................................................................................................40 BPM @ settings 1-4
37 BPM @ setting 5
31 BPM @ setting 6
Oxygen Concentration .............................................................................................................................................. 91% ± 3% for all flow settings
Maximum System Pressure .......................................................................................................................................................15 psig (103.5 kPa)
Oxygen Outlet Pressure............................................................................................................................................. 5.0 ± 1.0 psig (34.5 ± 7 kPa)
Operating Temperature................................................................................................................................................41°F to 104°F (5°C to 40°C)
Operating Humidity......................................................................................................................................10% - 95% at 82.4°F (28°C) dew point
Transportation and Storage Temperature .......................................................................................................... -4°F to +140°F (-20°C to +60°C)
Transportation and Storage Humidity......................................................................................................................... 10% to 95% non-condensing
Transportation and Storage Atmospheric Pressure (at nominal temperature
and humidity) (Tested at ~933 hPa)..................................................................................................................................640 hPA - 1010 hPA
Altitude (Tested at ~933 hPa).............................................................................................................................. 0 –13,123 feet (0 – 4,000 meters)
Nominal Sound Level ...............................................................................................................................40 dBA at 3 in PulseDose Delivery Mode
Maximum Sound Level in Battery Mode (from front) @ 3 LPM continuous flow.......................................................................................... 48 dBA
Maximum Sound Level as test per ISO 8359 ............................................................................................................................................... 55 dBA
Pressure Relief Mechanism ..................................................................................................................................... 20 psi ±20% (138 kPa ± 20%)
OSD Set Points ..........................................................................................................................................................≥ 84% - Normal Light (green)
76-83% - Low O2 Light (yellow)
≤ 75% - Service Required Light (red) and Audible Alert
CAUTION–When moving the iGo from an extreme environment, allow time for the iGo to acclimate to the recommended operating
environment. Operating the iGo outside the recommended operating environment may impact performance, cause damage, and will void the
warranty.
Electrical Power *
DeVilbiss Rechargeable Battery (Lithium Ion) .................................................................................................................................. 8.8 Amp Hours
AC Adapter Input Voltage Range ......................................................................................................................................... 100-250 VAC 50/60 Hz
Max AC Input Wattage @ 115V, 60 Hz or 230V, 50 Hz .............................................................................................................................200 watts
DC Adapter............................................................................................................................................................12 Volt Negative Ground System
Adapter Manufacturer Info:
AC Adapter ......................................................................................Jerome Industries Model # WSX828M, Autec Model # DT-EM250-2805
DC Adapter.................................................................................................................................................................EDAC, Model ED1010E
Device Classification ..................................................Class 1, Type BF Applied Part, IPX1 (Battery Mode Only), IPX0 (AC and DC Input Mode)
The DeVilbiss iGo Oxygen Concentrator meets RTCA DO-160F Section 21 Class M for battery operation only Airline Use.
*Use only DeVilbiss exact replacement parts.
Audible Alerts:
• Power Fail
• Low Battery
• Low Oxygen Output
• High Flow/Low Flow
• No Breath Detected in PulseDose Mode
• High Temperature
• Unit Malfunction
Specifications subject to change without notice.
DeVilbiss will make available on request circuit diagrams, parts lists, etc.

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SYMBOLS & DEFINITIONS / FIGURES, DIAGRAMS AND VIEWS
SYMBOLS & DEFINITIONS
Attention - Consult Instruction Guide WEEE Taiwan Service Required
Danger-No Smoking or Naked Flame Recyclable Li-ion Battery Flow Indicator
Electric Shock Hazard RBRC Recycle Mode Select (Continuous Flow/
PulseDose) Button
Alternating Current Power Button Increase Flow Setting
Direct Current (DC Power) No Breath Detected in PD Mode with
audible alert Decrease Flow Setting
Type BF Equipment External Power Present Indicator (solid
light). Power Fail Alarm (ashing light) Rechargeable Battery Status Symbol
Drip Proof Equipment IPX1 Normal Oxygen Low Oxygen
IPX0 Non-protected (ordinary equipment) No Naked Flames Use no oil or grease
Follow instructions for use The device contains electrical and/or electronic equipment that must be recycled per EU
Directive 2012/19/EU - Waste Electrical and Electronic Equipment (WEEE)
FIGURES, DIAGRAMS AND VIEWS
Index
Diagrams
Figure 1 - Pneumatic Diagram
Figure 2 - Wiring Diagram
Exterior Views
Figure 3 - Front
Figure 4 - Rear
Figure 5 - Side
Figure 6 - Bottom
Figure 7 - Battery Bay
Interior Views
Figure 8 - Top with Rear Cover Removed
Figure 9 - Inside Front Cover
Figure 10- Rear with Cover Removed
Figure 11 - Front with Cover Removed
Figure 12 - Motor Board
Figure 13 - PC Board

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LT-2044
FIGURES, DIAGRAMS AND VIEWS
5 PSI
REGULATOR
AIR INLET
PRESSURE
HEAD
INTAKE FILTER
SILENCER
AIR
OUTLET
MUFFLER
4-PORTED FOUR
WAY VALVE COMMON
EXHAUST
MOTOR VACUUM
HEAD
SIEVE
BED
TANK 1
2-WAY
VALVE
CHECK
VALVE
PRESSURE TAP FOR TRANSDUCER
IGO MODEL 306 PNEUMATIC
SCHEMATIC
SIEVE
BED
TANK 2
ACCUMULATOR TANK
CHECK
VALVE
TO PATIENT
PRESSURE
SWITCH
FINAL BACTERIA FILTER
2 WAY PROPORTIONAL VALVE
OXYGEN SENSOR
CHECK VALVE
Figure 1 - Pneumatic Diagram

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19
FIGURES, DIAGRAMS AND VIEWS
Figure 2 - Wiring Diagram

20
LT-2044
FIGURES, DIAGRAMS AND VIEWS
Figure 3 - Front
Oxygen Outlet
Control Panel
Front Cover
Cover Screws
Base