Invacare MA55 User Manual

SECTION 2—OPERATION

16

Firm/Soft Buttons

1. Select comfort pressure settings by pressing Firm (

) or Soft (

) button.

• Soft Button - Pressing this button reduces the pressure setting in the mattress.
• Firm Button - Pressing this button increase the pressure setting in the mattress.

NOTE: The patient comfort pressure ranges from Soft (level 0 = 6±4 mmHg) to Firm (level 9 = 

32±6 mmHg). The Comfort Control LED displays the patient comfort pressure levels from 0 to 9 

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%.

Fowler Button

1. Press the Fowler button (

) to activate the patient fowler mode.

NOTE: The Fowler LED illuminates when in this mode. When this mode is activated, the control 

unit increases the pressure in the mattress to prevent the patient from bottoming out.

Max Inflate Button

NOTE: This button is on the MA50 and MA51 only.

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 20-45 minutes for the 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.
2. Press the Max Inflate button again to manually disengage Max Inflate mode. 
NOTE: This will deactivate the Max Inflate LED.