Invacare Camping Equipment MA95Z User Manual

Owner’s Operator and Maintenance Manual  
MA90 Series  
MA90Z Alternating Rotation  
with On Demand True Low  
Air Loss System  
MA95Z Alternating Rotation  
and True Low Air Loss System  
DEALER: This manual MUST be given to  
the user of the product.  
USER: BEFORE using this product, read this  
manual and save for future reference.  
For more information regarding  
Invacare products, parts, and services,  
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TABLE OF CONTENTS  
TABLE OF CONTENTS  
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TABLE OF CONTENTS  
TABLE OF CONTENTS  
REGISTER YOUR PRODUCT  
The benefits of registering include:  
1. Safeguarding your investment.  
2. Ensuring long-term maintenance and servicing of your product.  
3. Receiving updates with product information, maintenance tips and industry news.  
Register ONLINE at warranty.invacare.com  
Please have your model number and purchase date available to complete your registration.  
Any registration information you submit will only be used by Invacare Corporation and protected  
as required by applicable laws and regulations.  
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TYPICAL PRODUCT PARAMETERS  
TYPICAL PRODUCT PARAMETERS  
Electrical Parameters  
MA90Z  
MA95Z  
INPUT VOLTAGE AC:  
INPUT FREQUENCY:  
CURRENT:  
90 V  
60 Hz  
1 A  
2 A  
MAXIMUM POWER CONSUMPTION:  
CIRCUIT PROTECTION:  
30 ± 10 W  
150 ± 10 W  
Dual fused,  
250 V,  
Dual fused,  
250 V,  
1 A fast blow fuses  
5 A fast blow fuses  
MODE OF OPERATION:  
Continuous  
Performance Parameters  
MA90Z  
MA95Z  
WEIGHT CAPACITY  
STANDARD MATTRESS:  
BARIATRIC MATTRESS:  
350 lbs  
1000 lbs  
PRESSURE ZONE:  
2
MAXIMUM FLOW:  
50 ± 15 LPM  
1275 ± 100 LPM  
MAXIMUM PRESSURE:  
MAXIMUM FLOW TIMER:  
SUPPORT SURFACE INFLATION TIME:  
35 ± 5 mmHg  
30 minutes  
15 minutes  
5 - 10 minutes  
25 - 60 seconds  
PATIENT COMFORT CONTROL PRESSURES:  
SOFT PRESSURE:  
FIRM PRESSURE:  
8 ± 4 mmHg  
32 ± 4 mmHg  
ROTATION TIME:  
10, 20, 30, 60 minutes  
0 - 30° ± 5°  
5 minutes - 4 hrs  
0 - 40° ± 5°  
ROTATION ANGLE:  
PATIENT CONTACT:  
Control unit and mattress have  
Latex-Free components  
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TYPICAL PRODUCT PARAMETERS  
Mechanical Parameters  
MA90Z  
MA95Z  
CONTROL UNIT DIMENSIONS (L X W X H):  
15” x 6½” x 11”  
15 lbs  
CONTROL UNIT WEIGHT:  
CONTROL UNIT POWER CORD:  
CONTROL UNIT CONNECTION:  
10 - 14 Feet Long, Hospital Grade  
Quad Flow - Four ¼”  
Triple Flow - Two ½” and  
One ¼” Single Magnetic  
Quick Coupling  
Single Quick Coupling  
CONTROL UNIT PACKAGING:  
AIR FILTER:  
1 piece/box  
None  
Charcoal Air Filter with  
Fire Retardant  
Environmental Parameters  
MA90Z/MA95Z  
OPERATING CONDITIONS  
AMBIENT TEMPERATURE:  
RELATIVE HUMIDITY:  
50° - 95° F  
30% - 75% Non-Condensing  
70 - 106 kPa  
ATMOSPHERIC PRESSURE:  
STORAGE AND SHIPPING CONDITIONS  
AMBIENT TEMPERATURE:  
RELATIVE HUMIDITY:  
-40° - 158° F  
10% - 100%  
50 - 106 kPa  
ATMOSPHERIC PRESSURE:  
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LABEL LOCATION  
LABEL LOCATION  
DANGER-EXPLOSION HAZARD: DO NOT use in the presence of  
flammable anesthetics.  
CAUTION: Equipment should be connected to a properly grounded  
receptacle (3-prong). Risk of Electrical shock. DO NOT remove  
back. Disconnect air hose before administering CPR.  
NOTE: This label is on the back of  
the unit and also contains the  
serial number.  
ATTENTION  
Clean Filter Every 5 months and  
Whenever Dirty. Remove Filter,  
Wash, Dry & Replace.  
NOTE: MA95Z only.  
WARNING  
Patient entrapment with bed side rails may cause injury or death. Mattress  
MUST fit bed frame and side rails snugly to prevent patient entrapment.  
Follow the manufacturer’s instructions. Monitor patient frequently. Read  
and understand the Owner’s/Operator’s Manual prior to using this  
or your dealer.  
Label part number 1150708 Rev A  
NOTE: This label is on the foot end of  
the mattress cover (not shown).  
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SECTION 1—GENERAL GUIDELINES  
SECTION 1—GENERAL GUIDELINES  
WARNING  
SECTION 1 - GENERAL GUIDELINES contains important information for the safe  
operation and use of this product.  
Contraindications  
ALWAYS consult the patients physician before using the MA90Z and MA95Z systems.  
Installation  
The MA90Z and MA95Z systems MUST be installed on medical bed frames with side  
rails. The side rails MUST be in the raised position whenever a patient is on the bed.  
Controls on the footboard may be obstructed by the power unit on a few bed frames. It  
may be necessary to relocate the power unit. Refer to Installing the Power Unit on page 11.  
Check that air hoses and power cord are clear of moving bed components before placing  
a patient on the bed. Operate all bed frame motorized functions through their full range  
of motion to be certain that there is no pulling, interference or pinching.  
DO NOT strap the mattress to the bed frame at the head and foot ends. Secure ALL  
mattress straps. Secure the straps to the bed deck at the head and foot ends and to the  
frame at the center of the bed. Otherwise damage to the mattress will occur when the head  
Entrapment May Occur  
WARNING  
Patient entrapment with bed side rails may cause injury or death. Mattress MUST  
fit bed frame and side rails snugly to prevent patient entrapment. Follow the  
manufacturer’s instructions. Monitor patient frequently. Read and understand the  
Owner’s/Operator’s Manual prior to using this equipment. Invacare product  
Proper patient assessment and monitoring, and proper maintenance and use of  
equipment is required to reduce the risk of entrapment. Variations in bed rail  
dimensions, and mattress thickness, size or density could increase the risk of  
entrapment. Review “A Guide to Bed Safety”, published by the Hospital Bed Safety  
product entry to access this bed safety guide.  
Refer to the owner’s manuals for beds and rails for additional product and safety  
information.  
After any adjustments, repair or service and before use, make sure all attaching  
hardware is tightened securely. Assist rails with dimensions different from the  
original equipment supplied or specified by the bed manufacturer may not be  
interchangeable and may result in entrapment or other injury.  
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SECTION 1—GENERAL GUIDELINES  
Fire Hazard  
DANGER  
Smoking  
DO NOT SMOKE while using this device. This system uses room air for circulation  
through the mattress. A cigarette can burn a hole in the bed surface and cause  
damage to the mattress. Also, patient clothing, bed sheets, etc. may be combustible  
and cause a fire. Failure to observe this warning can result in severe fire, property  
damage and cause physical injury or death.  
Smoking by visitors in the room will contaminate the system. Therefore, visitor  
smoking is NOT permitted.  
Anesthesia Equipment  
There is an explosion risk if used with flammable anesthetics.  
Oxygen  
There is a possible fire hazard when used with oxygen administering equipment  
other than nasal mask or half bed tent type. The oxygen tent should NOT extend  
below mattress support level.  
Electrical  
DANGER  
Electrical shock hazard. DO NOT remove cover. Refer to qualified service  
personnel.  
Before performing any maintenance to the power unit, disconnect the power cord from  
the wall outlet.  
DO NOT insert items into any openings of the control unit. Doing so may cause fire or  
electric shock by shorting the internal components  
The control unit MUST be kept away from all heat sources and radiators during  
operation.  
Connect the equipment to properly grounded three prong wall outlet using 1014 ft  
hospital grade power cord provided with the product.  
Grounding reliability depends upon a properly grounded receptacle (3prong).  
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SECTION 2—OPERATION  
SECTION 2—OPERATION  
CAUTION  
The control unit and mattress on the MA90Z series are designed to be used as a  
system. DO NOT replace mattresses or control units with other models or other  
brands. Otherwise, damage to the system may occur. Contact your supplier to get  
the correct replacement if needed.  
Installing the Mattress Replacement System  
CAUTION  
DO NOT strap the mattress to the bed frame at the head and foot ends. Secure  
ALL mattress straps. Secure the straps to the bed deck at the head and foot ends  
and to the frame at the center of the bed. Otherwise damage to the mattress will  
occur when the head and foot ends are raised.  
Head End Bed Deck  
Center of Bed Frame  
Foot End Bed Deck  
DO NOT Strap Here  
NOTE: For this procedure, refer to FIGURE 2.1.  
NOTE: The powered mattress comes with ten nylon buckle straps.  
1. Remove the original foam mattress from the bed.  
2. If necessary, lower the side rails to facilitate installation of the mattress.  
3. Unroll the powered mattress and place it on the bed frame.  
NOTE: Ensure that the hose is towards the foot end of the bed.  
4. Use the buckle straps to secure the powered mattress to the bed deck in the following  
locations:  
• Head End Head End Bed Deck  
• Foot End Foot End Bed Deck  
• Center Center of the Bed Frame  
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SECTION 2—OPERATION  
Head End  
Powered Mattress  
NOTE: Mattress  
cover not shown for  
clarity.  
Buckle  
Straps  
Hose  
Foot End  
Installing the Side Rails  
WARNING  
Patient entrapment with bed side rails may cause injury or death. Mattress MUST  
fit bed frame and side rails snugly to prevent patient entrapment. Follow the  
manufacturer’s instructions. Monitor patient frequently. Read and understand the  
Owner’s/Operator’s Manual prior to using this equipment. Invacare product  
NOTE: Refer to the instructions provided with the side rails for the installation procedure.  
Installing the Power Unit  
NOTE: For this procedure, refer to FIGURE 2.2.  
1. Pull out the bed hook on the back of the  
control unit.  
Bed Hook  
2. Place the control unit on the footboard.  
NOTE: If the bed does not have a footboard,  
place the control unit on a flat surface, leaving  
room for the hose to hang down.  
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SECTION 2—OPERATION  
Connecting the Hose  
CAUTION  
Ensure that the hose connecting the control unit to the mattress is routed such that  
it cannot be stepped on, kinked, squeezed or otherwise damaged.  
NOTE: For this procedure, refer to FIGURE 2.3.  
1. Locate the hose at the foot end of the mattress.  
2. Locate the control unit connector on the right side of the control unit.  
3. Perform one of the following:  
• MA90Z Perform the following steps (Detail A”):  
i. Squeeze and hold the tabs on the hose connectors.  
ii. Insert the hose connectors into the control unit connector.  
iii. Push the hose connectors onto the control connector until an audible click is  
heard.  
NOTE: The audible click indicates that the hose connector(s) are properly engaged with the  
control connectors.  
• MA95Z Perform the following steps (Detail “B”):  
i. Lift and hold the connector cover up .  
ii. Push the hose connector onto the control connector .  
iii. Ensure the hose connector is flush with the control unit connector.  
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SECTION 2—OPERATION  
Control  
Unit  
DETAIL “B” - MA95Z  
CONNECTOR  
ControlUnit  
Connectors  
Connector  
Cover  
DETAIL “A” - MA90Z  
CONNECTOR  
MA95ZHose  
Connector  
MA90Z Hose  
Connector  
Tab  
Connecting the Power Cord  
WARNING  
DO NOT alter plug to fit a non-conforming outlet. Instead, have an electrician  
install a properly grounded outlet. Failure to use the correct plug and outlet can  
result in a potential safety hazard.  
CAUTION  
Ensure that the power cord of the control unit is not pinched, or has any objects placed  
on it, and also ensure it is not located where it can be stepped on or tripped over.  
1. Examine the hospital grade power cord supplied with the control unit.  
2. Perform one of the following:  
• If the plug is damaged Call your supplier for a replacement hospital grade cord.  
• If the plug is not damaged Plug the end of the supplied hospital grade power cord  
into the power outlet on the side of the control unit.  
3. Plug the other end of the plug into a properly grounded outlet on the wall.  
NOTE: Once the unit is plugged in, an AMBER LED on the control unit is lit indicating that the  
system is in STAND BY mode.  
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SECTION 2—OPERATION  
Using the Front Panel  
NOTE: For this procedure, refer to FIGURE 2.4.  
DETAIL “A” - MA90Z FRONT PANEL  
Low Pressure  
LED  
Turn Angle  
Button  
Power  
Button  
Power  
Fail LED  
Lock/Alarm  
Button  
Turn Button  
Mode (Max  
Inflate/Low Air  
Loss) Button  
Soft Button  
Firm Button  
Turn Time Button  
DETAIL “B” - MA95Z FRONT PANEL  
Low Pressure  
LED  
Hold  
Button  
Power  
Fail LED  
Power  
Button  
Select Button  
Lock/Alarm  
Button  
Rotation  
Button  
Max Inflate  
Button  
Down/Soft  
Button  
LCD  
Up/Firm Button  
Power Button  
1. To turn the control unit on or off, press and release the Power button (  
).  
NOTE: Once the unit is plugged in, an AMBER LED on the control unit is lit indicating that the  
system is in STAND BY mode. Once the Power button is pressed and released, a GREEN LED  
illuminates indicating that the control unit is on.  
If the power comes on after a power outage, the control unit will go through its system initializa  
tion routine for a few seconds and then resume the desired function.  
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SECTION 2—OPERATION  
Turn Button (MA90Z)  
1. Press the Turn button (  
No Turn (Static) mode.  
) to select one of three rotation modes or to set the unit to  
NOTE: The rotation modes are right, left or both and all three modes include alternating pressure  
therapy.  
NOTE: When No Turn is selected, all of the air cushions are maintained at a constant pressure.  
Turn Time Button (MA90Z)  
1. Press the Turn Time button (  
) to select one of four rotation times.  
NOTE: The rotation times are 10, 20, 30 and 60 minutes.  
Turn Angle Button (MA90Z)  
1. Press the Turn Angle button (  
) to select one of four rotation angles.  
NOTE: The rotation angles are ¼, ½, ¾ and full rotation (45°).  
Rotation Button (MA95Z)  
1. Press the Rotation button (  
) to select Static mode or Alternating Rotation mode.  
NOTE: When the LED is on, Alternating Rotation mode has been selected.  
NOTE: In Static mode, the LED is off and all air cushions are maintained at a constant pressure.  
Select Button (MA95Z)  
1. Press the Select button (  
)to move the pointer on the LCD to Function.  
2. Press the Firm or Soft button until the desired function displays. Available functions  
are:  
FUNCTION  
DESCRIPTION  
LEFT  
Rotation to the Left side. The time indicates the  
rotation duration.  
CENTER  
RIGHT  
STATIC  
Rotation to Center. The time indicates the rotation  
duration.  
Rotation to the Right side. The time indicates the  
rotation duration.  
Static mode. All air cushions maintain constant  
pressure.  
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SECTION 2—OPERATION  
FUNCTION  
DESCRIPTION  
PULSE  
Pulse mode. The pulse time indicates the time between  
pulses. For example, 5 minutes is selected. In this  
example, all of the air cushions in the mattress will  
deflate for 4 seconds and inflate for 5 minutes (the  
selected time).  
FOWLER  
Fowler Mode. The pressure will increase to prevent the  
patient from bottoming out.  
MULTI (PULSE + STATIC)  
Pulse and Static mode.  
3. Use the Select button to move the pointer to the times or attributes available for the  
selected function.  
4. Use the Firmer or Softer buttons to change the times or attributes.  
Hold Button (MA95Z)  
1. Press the Hold button ( ) to pause the mattress in the current position. The mattress  
will remain in this position until the Hold button is pressed again.  
Firm/Soft Buttons  
1. Select comfort pressure settings by pressing Firm (  
) or Soft (  
) buttons.  
• Soft Button Pressing this button reduces the pressure in the mattress.  
• Firm Button Pressing this button increases the pressure in the mattress.  
NOTE: The patient comfort pressure ranges from Soft (6±4 mmHg) to Firm (32±6 mmHg). The  
Comfort Control LED displays the patient comfort pressure levels and provides a guide to the  
caregiver to set approximate comfort pressure level depending on the patient weight. If the patient’s  
weight to height ratio is above average, increase the pressure setting by approximately 20%.  
MA90Z models display levels from 0 to 9 and MA95Z models display the mmHg from 6 to 32.  
Automatic Wireless Fowler  
Manual Operation of the Fowler  
1. Press the Select button (  
) to move the pointer on the LCD to Function.  
2. Use the Firm and Soft buttons until Fowler displays.  
NOTE: When this mode is activated, the control unit increases the pressure in the mattress to  
prevent the patient from bottoming out.  
About Automatic Wireless Mode  
When the bed articulates to 45°, the transmitter in the head of the mattress signals the  
control unit to increase the pressure in the mattress by 80% to prevent the patient from  
bottoming out.  
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SECTION 2—OPERATION  
Programming the Automatic Wireless Fowler Transmitter  
1. Ensure the transmitter is inside the mattress pocket located on the right side of the  
mattress at the head end.  
2. Ensure the mattress is in a flat position.  
3. Ensure the control unit is plugged in, and the LCD displays STAND BY.  
4. Perform one of the following:  
• MA90Z Perform the following steps:  
i. Press and hold the Turn Angle and Max Inflate buttons.  
NOTE: The Fowler LED is lit and L displays in the LCD Display.  
ii. Raise the bed to 45°.  
NOTE: The control unit will beep and will return to Standby.  
iii. Perform one of the following:  
• Cancel Press the Turn Angle button to exit Fowler Transmitter Setup  
without linking to a transmitter.  
• Save Wait 60 seconds without pressing a key.  
• MA95Z Perform the following steps:  
i. Press and hold the Hold and Max Inflate buttons.  
ii. AUTO FOWLER LEARN MODE will display.  
iii. PLACE BED IN FLAT POSITION will display.  
iv. CONTINUE > SELECT will display.  
v. Press the Select button.  
vi. PLACE BED IN FOWLER/UPRIGHT POSITION will display.  
vii.TRANSMITTER DETECTED will display.  
viii.The control unit will beep.  
ix. STAND BY will display.  
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SECTION 2—OPERATION  
Mode Button (MA90Z)  
1. Press the Mode button ( ) to select the Max Inflate Mode or the Low Air Loss mode.  
• Max Inflate Mode In this mode, the mattress inflates rapidly to maximum  
firmness (pressurized to 35 ± 6 mmHg). A series of beeps sound every three  
minutes as a reminder that the Max Inflate mode is active. After 30 minutes, the  
Max Inflate mode deactivates and the control unit defaults to the previous setting.  
NOTE: It takes 510 minutes for the MA90Z mattress to inflate fully (inflation time depends  
on size of mattress).  
NOTE: Max Inflate mode can be manually disengaged by pressing the Max Inflate button.  
This will deactivate the Max Inflate LED.  
NOTE: It is recommended that Max Inflate setting be used during patient ingress/egress,  
patient wound care, patient turning or patient cleaning.  
• Low Air Loss Mode In this mode, the mattress goes into ondemand low air loss  
relief mode.  
Max Inflate Button (MA95Z)  
1. Press the Max Inflate button ( ) to select the max inflate mode and inflate the  
mattress rapidly to maximum firmness (pressurized to 35 ± 6 mmHg). A series of  
beeps sound every three minutes as a reminder that the Max Inflate mode is active.  
After 30 minutes, the Max Inflate mode deactivates and the control unit defaults to the  
previous setting.  
NOTE: It takes 2560 seconds for the MA95Z mattress to inflate fully (inflation time depends on  
size of mattress).  
NOTE: It is recommended that Max Inflate setting be used during patient ingress/egress, patient  
wound care, patient turning or patient cleaning.  
2. Perform one of the following:  
• MA90Z Press the Max Inflate button again to manually disengage Max Inflate  
mode.  
• MA95Z Select a different setting to exit Max Inflate mode.  
NOTE: This will deactivate the Max Inflate LED.  
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SECTION 2—OPERATION  
Lock/Alarm Silence Button  
1. Press the Lock/Alarm Silence button (  
) to select one of the following modes:  
• Lock Mode Pressing this button locks out all control unit functions, including the  
On button, to prevent any tampering with the settings. Press the button for  
approximately 35 seconds for the Lock LED to activate.  
NOTE: The Lock LED illuminates when in this mode.  
• Alarm Silence mode Pressing this button silences the alarm that sounds in the  
event of power failure or when the hose is disconnected from the control unit.  
NOTE: The Alarm LED illuminates when in this mode.  
Power Fail LED  
In the event of power outage, an alarm sounds and the Power Fail LED flashes AMBER.  
The control unit has internal memory and retains the previous settings during the power  
outage.  
NOTE: During a power outage, the MA90Z mattress retains the air as long as the mattress is  
connected to the control unit.  
Low Pressure LED  
In the event that the mattress hose disconnects, an alarm sounds and Low Pressure LED  
flashes AMBER. Once the low pressure problem is fixed, the control unit resumes  
operation in the previously set mode.  
Displaying the Total Run Time (MA95Z)  
Every time the control unit is plugged in, the LCD screen displays the Run Time in hours  
and minutes. For example, 2,584 hours and 25 minutes displays as 002584 Hours 000025  
Minutes.  
To display the Run Time during use:  
1. Ensure the control unit is plugged in and the Standby LED is On.  
2. Press and hold the Soft and Firm Buttons at the same time.  
3. The LCD screen displays the Run Time as described above.  
Powering Up the System  
NOTE: For this procedure, refer to FIGURE 2.4.  
1. Turn on the power to the system by pressing the Power button on the control unit.  
NOTE: Once the button is released, a GREEN LED illuminates when the unit is on.  
19  
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SECTION 2—OPERATION  
Placing the Patient on the Mattress  
1. Press the Mode button or Max Inflate button to turn on the control unit to maximum  
flow.  
NOTE: In this mode, the Max Inflate LED lights up.  
2. After the mattress is fully inflated, place the patient on the bed.  
3. Ensure that the patients feet are towards the foot end of the mattress (the end with the  
hose).  
4. Center the patient on the bed from sidetoside and headtofoot.  
NOTE: Special positioning may be required with contracted patients to provide comfortable  
positions.  
5. After placing the patient, make certain no objects will fall under the patient, such as  
feeding tubes, IVʹs etc.  
6. Wait five minutes for the mattress pressure to stabilize.  
7. Set the comfort pressure to the desired comfort level.  
8. Verify that the patient has not bottomed out by performing the following steps:  
A. Ensure that the patient is lying flat on his/her back in the middle of the mattress.  
B. Place four fingers between the air cushions directly underneath the sacral region  
of the patients body.  
C. Ensure that there is 3 to 4finger width clearance between the bottom of the patient  
and the bed frame.  
D. Adjust the comfort setting, if needed.  
E. Wait five minutes for the mattress pressure to stabilize.  
F. Repeat STEPS AE until patient has not bottomed out and patient comfort is  
achieved.  
9. If the patient feels that the bed is too soft/hard, press the Soft or Firm button to adjust  
the comfort settings.  
10. Use a regular pillow to help support and stabilize the patientʹs head.  
Transferring Patient From/To a Gurney  
WARNING  
ALWAYS engage the wheel locks of the bed and the wheel locks of the gurney  
before transferring the patient between the bed and the gurney.  
1. Engage the wheel locks of the bed. Refer to the owners manual provided with the bed.  
2. Engage the wheel locks of the gurney. Refer to the owners manual provided with the  
gurney.  
3. Press the Max Inflate button to achieve maximum mattress pressure.  
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SECTION 2—OPERATION  
4. Raise or lower the bed to match the gurney height. Refer to the owners manual  
provided with the bed.  
5. When the mattress has reached maximum firmness, perform one of the following:  
• Bed to Gurney Transfer Slide the patient onto the gurney.  
• Gurney to Bed Transfer Slide the patient onto the bed.  
Transferring Patient From/To a Wheelchair  
WARNING  
ALWAYS engage the wheel locks of the bed and the wheel locks of the wheelchair  
before transferring the patient between the bed and the wheelchair.  
1. Engage the wheel locks of the bed. Refer to the owners manual provided with the bed.  
2. Engage the wheel locks of the wheelchair, if applicable. Refer to the owners manual  
provided with the wheelchair.  
3. Press the Max Inflate button to achieve maximum mattress pressure.  
4. Raise or lower the bed to match the wheelchair height. Refer to the owners manual  
provided with the bed.  
5. When the mattress has reached maximum firmness, perform one of the following:  
• Bed to Wheelchair Transfer Slide the patient onto the wheelchair.  
• Wheelchair to Bed Transfer Slide the patient onto the bed.  
Preparing for CPR Procedure  
NOTE: For this procedure, refer to FIGURE 2.5.  
1. Perform one of the following:  
• MA90Z Press and hold the tabs on the hose connector (Detail “B”).  
• MA95Z Lift the connector cover (Detail A”).  
2. Pull the hose connector (Details “B” and “C”) from the control unit connectors.  
NOTE: MA95Z Only If the hose connector is difficult to release, pull the hose connector down  
and then away .  
3. MA90Z Only Disconnect the RED CPR connector located on the hose (Detail “D”).  
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SECTION 2—OPERATION  
DETAIL “A”  
Connector  
Cover  
ControlUnit  
Connectors  
Control  
Unit  
DETAIL “B”  
DETAIL “C”  
MA90Z Hose  
Connector  
MA95Z Hose  
Connector  
Tab  
DETAIL “D”  
Mattress  
RED CPR Connector  
(MA90Z Only)  
22  
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SECTION 3—MAINTENANCE AND TROUBLESHOOTING  
SECTION 3—MAINTENANCE AND  
TROUBLESHOOTING  
Cleaning the System  
WARNING  
Before cleaning or disassembling the MA90 series, check the underside of the  
mattress folds for sharp objects such as scissors, needles, etc. These objects should  
be removed and discarded before proceeding with further cleaning or disassembly;  
otherwise injury or damage to the product may occur.  
Because of potential risk of infectious exposure, cleaning with the patient on the bed  
is not recommended.  
All equipment should be inspected. Any item that is visibly soiled with the patient's  
blood or other body fluids should be properly cleaned or removed.  
Laundry workers should treat all soiled bedding as if it were contaminated with  
pathogenic microorganisms.  
1. Remove the bedding.  
2. If necessary, inflate the mattress.  
3. Ensure that the control unit is off.  
4. Unplug the power cord from the wall outlet.  
5. Ensure that the underside of the mattress is clear of all sharp objects.  
6. Examine the surface of the control unit and mattress assembly components for visible  
blood or body fluids.  
7. Perform one of the following:  
• If blood is present, decontaminate the product.  
i. Remove all visible soil with disposable paper towels.  
ii. Scrub the area with freshly prepared effective phenolic detergent disinfectant  
solution.  
• If blood is not present, remove any soil from the cover with paper towels.  
NOTE: If soiled, the cover should be removed, cleaned and decontaminated.  
8. Perform the following steps to clean the mattress cover:  
A. Using a clean sponge or paper towel, wipe down the cover surface with a dilute  
detergent solution of quaternary cleaner disinfectant or other germicidal detergent  
solution.  
B. Remove the cover and launder it using the following method:  
23  
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SECTION 3—MAINTENANCE AND TROUBLESHOOTING  
CAUTION  
Laundry workers should always wash their hands before working with clean  
bedding.  
DO NOT overload the machine.  
DO NOT use chlorine bleach because it may damage the fabric coating.  
High air temperatures will damage the fabrics and void the Invacare warranty.  
i. Place the cover in a washing machine.  
ii. Wash with warm water (below 120°F).  
iii. Add detergent and disinfectant according to the manufacturers instructions.  
iv. Remove excess water.  
v. Set the dryer to the lowest setting (below 120°F).  
vi. Dry the cover until it is completely dry.  
9. Perform the following steps to clean the control unit and hose fittings:  
A. Wipe all controls, chassis and hose fittings with a quaternary disinfectant solution.  
B. Using a nylon brush, gently clean all crevices as they can harbor microorganisms.  
C. Air dry all treated surfaces.  
10. Perform the following steps to clean the mattress components (air cushions, mattress  
base, etc.):  
A. Using a clean sponge or paper towel, wipe down the mattress components with a  
dilute detergent solution of quaternary cleaner disinfectant or other germicidal  
detergent solution.  
B. Wipe the mattress components with a clean dry cloth.  
Storing the System  
1. Ensure that the control unit is off and disconnect the power cord from the wall outlet.  
3. Disconnect the air hose connector from the control unit and allow air to vent from the  
mattress.  
4. Gently roll up the mattress with minimal handling and agitation.  
5. Ensure the cover surface is inside the roll.  
6. Store the unit, keeping the mattress with the control unit.  
24  
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SECTION 3—MAINTENANCE AND TROUBLESHOOTING  
Changing the Filter  
NOTE: For this procedure, refer to FIGURE 3.1 on page 25.  
Clean the filter every 5 months or whenever it is dirty.  
1. Remove the two screws securing the filter cover to the back of the control unit.  
2. Remove the filter.  
3. Wash the filter with water and a mild detergent.  
4. Dry the filter completely.  
5. Install the filter into the back of the control unit.  
6. Secure the filter cover to the back of the control unit using the two screws.  
Filter Cover  
Screws  
Troubleshooting  
PROBLEM  
CAUSE  
SOLUTION  
Mattress not inflating  
Not alternating properly  
Mattress hose disconnected  
Connect hose connectors and lock  
them in place  
Air hose kinked or split  
Unkink hose or replace split hose  
Major leak in the air cushions or  
overlay pad  
Replace leaking air cushions or  
overlay pad  
Kinked or split manifold  
Unkink manifold or replace split  
manifold  
Has power and fuse is good, control Send unit back for repair  
unit does not come on  
Not alternating, solenoid or valve  
malfunction  
Send control unit back to factory for  
repair  
No air, pump or blower malfunction. Send unit for repair  
25  
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SECTION 3—MAINTENANCE AND TROUBLESHOOTING  
PROBLEM  
CAUSE  
SOLUTION  
No power  
Control unit off  
Check power source and turn on  
unit  
Power cord disconnected  
No power in the power source  
Power outage  
Connect power cord to the power  
source  
Check power source has power  
power and turn it On  
Wait till the power source has  
power  
Blown fuse  
Replace blown fuse with an  
equivalent fuse  
26  
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SECTION 3—MAINTENANCE AND TROUBLESHOOTING  
NOTES  
27  
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LIMITED WARRANTY  
PLEASE NOTE: THE WARRANTY BELOW HAS BEEN DRAFTED TO COMPLY WITH FEDERAL  
LAW APPLICABLE TO PRODUCTS MANUFACTURED AFTER JULY 4, 1975.  
This warranty is extended only to the original purchaser who purchases this product when new and unused  
from Invacare or a dealer. This warranty is not extended to any other person or entity and is not transferable  
or assignable to any subsequent purchaser or owner. Coverage under this warranty will end upon any such  
subsequent sale or other transfer of title to any other person.  
This warranty gives you specific legal rights and you may also have other legal rights which vary from state to  
state.  
Invacare warrants the mattress and cover when purchased new and unused to be free from defects in  
materials and workmanship for a period of one year from the date of purchase from Invacare or a dealer, with  
a copy of the seller’s invoice required for coverage under this warranty. Invacare warrants the control unit  
when purchased new and unused to be free from defects in materials and workmanship for a period of two  
years from the date of purchase from Invacare or a dealer, with a copy of the seller’s invoice required for  
coverage under this warranty.If within such warranty period any such product shall be proven to be defective,  
such product shall be repaired or replaced, at Invacare's option. This warranty does not include any labor or  
shipping charges incurred in replacement part installation or repair of any such product. Invacare's sole  
obligation and your exclusive remedy under this warranty shall be limited to such repair and/or replacement.  
For warranty service, please contact the dealer from whom you purchased your Invacare product. In the event  
you do not receive satisfactory warranty service, please write directly to Invacare at the address on the back  
cover. Provide dealer's name, address, model number, and the date of purchase, indicate nature of the defect  
and, if the product is serialized, indicate the serial number.  
Invacare Corporation will issue a return authorization. The defective unit or parts must be returned for  
warranty inspection using the serial number, when applicable, as identification within thirty days of return  
authorization date. DO NOT return products to our factory without our prior consent. C.O.D. shipments will  
be refused; please prepay shipping charges.  
LIMITATIONS AND EXCLUSIONS: THE WARRANTY SHALL NOT APPLY TO PROBLEMS ARISING  
FROM NORMAL WEAR OR FAILURE TO ADHERE TO THE ENCLOSED INSTRUCTIONS. IN ADDITION,  
THE FOREGOING WARRANTY SHALL NOT APPLY TO SERIAL NUMBERED PRODUCTS IF THE  
SERIAL NUMBER HAS BEEN REMOVED OR DEFACED; PRODUCTS SUBJECTED TO NEGLIGENCE,  
ACCIDENT, IMPROPER OPERATION, MAINTENANCE OR STORAGE; OR PRODUCTS MODIFIED  
WITHOUT INVACARE'S EXPRESS WRITTEN CONSENT INCLUDING, BUT NOT LIMITED TO:  
MODIFICATION THROUGH THE USE OF UNAUTHORIZED PARTS OR ATTACHMENTS: PRODUCTS  
DAMAGED BY REASON OF REPAIRS MADE TO ANY COMPONENT WITHOUT THE SPECIFIC  
CONSENT OF INVACARE; PRODUCTS DAMAGED BY CIRCUMSTANCES BEYOND INVACARE'S  
CONTROL; PRODUCTS REPAIRED BY ANYONE OTHER THAN AN INVACARE DEALER, SUCH  
EVALUATION SHALL BE SOLELY DETERMINED BY INVACARE.  
THE FOREGOING EXPRESS WARRANTY IS EXCLUSIVE AND IN LIEU OF ANY OTHER EXPRESS  
WARRANTIES WHATSOEVER, WHETHER EXPRESS OR IMPLIED, INCLUDING THE IMPLIED  
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND THE SOLE  
REMEDY FOR VIOLATIONS OF ANY WARRANTY WHATSOEVER, SHALL BE LIMITED TO REPAIR OR  
REPLACEMENT OF THE DEFECTIVE PRODUCT PURSUANT TO THE TERMS CONTAINED HEREIN.  
THE APPLICATION OF ANY IMPLIED WARRANTY WHATSOEVER SHALL NOT EXTEND BEYOND  
THE DURATION OF THE EXPRESS WARRANTY PROVIDED HEREIN. INVACARE SHALL NOT BE  
LIABLE FOR ANY CONSEQUENTIAL OR INCIDENTAL DAMAGES WHATSOEVER.  
THIS WARRANTY SHALL BE EXTENDED TO COMPLY WITH STATE/PROVINCIAL LAWS AND  
REQUIREMENTS.  
Invacare Corporation  
USA  
Canada  
All rights reserved. Trademarks are identified by  
One Invacare Way  
Elyria, Ohio USA  
44036-2125  
570 Matheson Blvd E the symbols ™ and ®. All trademarks are owned  
Unit 8  
by or licensed to Invacare Corporation unless  
Mississauga Ontario otherwise noted.  
L4Z 4G4 Canada  
800-333-6900  
800-668-5324  
©2008 Invacare Corporation  
Part No 1148139  
Rev B - 02/08  
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