Hillrom Envella Air Fluidized Therapy Bed
Hillrom · Model Envella Air Fluidized Therapy Bed
Superior performance for major skin risk factors. Weight based pressure redistribution in head section. Side transfer helps make it easy and safe for patients to get in and out of bed. Auto leveling bead bath to help maintain immersion for optimal therapy. Head-of-bed angle indicator and alert supports responsive monitoring and protocol compliance. Bed exit with alert silence supports fall prevention protocols. Improved lumbar support allows smooth, and comfortable transition from head-of-bed section into the bead bath. Integrated scale facilitates less disruption of patient. Adjustable patient comfort settings. CPR quick-release handle. Easy to remove, self standing siderails. Central brake and alert. Intuitively designed controls are consistent with other Hill-Rom beds.
Key tips
- ·Casters and the wheel-lock brake take the most day-to-day wear - check both every PM, not just on complaint.
- ·A cracked weld or loose frame joint is a safety-critical finding - pull the unit from service until it's repaired.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
A powered bed function will not run
HighSymptoms: Backrest, knee, height, Trendelenburg or the boost / turn assist will not move from the siderail or caregiver controls.
Root cause: Failed linear actuator, a control-board fault, a control-panel fault, or a pinched / damaged control cable.
Brake / castor-lock fault
MediumSymptoms: Bed will not brake or release, drifts, central brake pedal ineffective.
Root cause: Worn central-brake linkage or castor.
Integrated scale / bed-exit fault
MediumSymptoms: Weight reads implausibly or will not zero, bed-exit alarm false-triggers or fails.
Root cause: Load-cell drift or damage, or a scale-control fault.
Battery back-up fault
MediumSymptoms: Functions and alarms do not work during a power interruption, battery-fault indicator.
Root cause: Aged back-up battery or a charger fault.
Siderail / CPR-release / mechanical fault
LowSymptoms: Siderail will not latch, rattles, or the CPR release is slow / stiff.
Root cause: Worn siderail latch or the CPR mechanism.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
Linear actuator (backrest / knee / height)
Class Major service partRel. cost $$$R&R Difficult
Central-brake / castor assembly
Class Major service partRel. cost $$R&R Difficult
Load cell / scale sensor set
Recalibrate the scale after replacement.
Class Major service partRel. cost $$$R&R Difficult
Back-up battery
Class Periodic replacementRel. cost $$R&R Fairly easy
Siderail control panel / control board
Class Major service partRel. cost $$$R&R Moderate
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Linear actuator (backrest / knee / height) | Major service part | $$$ | Difficult |
| Central-brake / castor assembly | Major service part | $$ | Difficult |
| Load cell / scale sensor set Recalibrate the scale after replacement. | Major service part | $$$ | Difficult |
| Back-up battery | Periodic replacement | $$ | Fairly easy |
| Siderail control panel / control board | Major service part | $$$ | Moderate |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
PM Checklist
Preventive-maintenance tasks typical of this equipment class. Perform to the manufacturer's procedure and your facility's policy - this is general reference, not a schedule for this specific unit.
- ·Caster / wheel and brake function check
- ·Frame, weld, and mounting-hardware inspection
- ·Upholstery / surface condition check
- ·Annual full PM
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: A powered function is dead
- Confirm the bed is plugged in and the battery is charged, and any function lock-out is off.
- Try the function from both the siderail and caregiver controls to isolate the control from the actuator.
- Check the control cable / harness for pinch damage along the articulation.
- Replace the actuator or control board as isolated.
- Load-test the function to the rated capacity.
Symptom: Scale or bed-exit inaccurate
- Remove all load and confirm the scale reads zero and can be tared.
- Hang / place a known reference weight and confirm the reading.
- Inspect the load-cell mounts for binding or debris.
- Recalibrate per the service manual.
- Replace the load-cell set if it will not calibrate.
Technical Specs
- Low position
- 22" (56cm)
- High position
- 31.5" (80cm)
- Overall length
- 92.5" (235cm)
- Overall width
- 40" (101.6cm)
- Head elevation range
- 0º - 60º
- Bed frame ground clearance
- 3" (7.62cm)
- Minimum width of the bead section
- 19" (48.3cm)
- Minimum length of the bead section
- 45" (114cm)
- Patient weight range
- 70-350lbs (32-160kg)
- Maximum patient height
- 74" (188cm)
- Bead temperature control range
- 86º - 100º
- Caster size
- 6"
- Four wheel braking
- Yes
- Brake not set alert
- Yes
- Rated Voltage
- 12 V AC, 60Hz
- Rated current
- 10 A
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Ambulance / transport vehicles
- Emergency Department
- Inter-facility transport teams
Documents & Manuals
No documents available for this device yet.
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