5Alternating Air Pressure Mattresses& CushionsInstallation and User GuidelinesINSTALLING MATTRESSES1. If using a mattress replacement system, which is intended to completely replace the bedmattress, remove any existing mattress from the bedframe. If using a mattress overlay system, ensure bedframe to be used has an existing mattress in place.2. Place the mattress on the bed frame/existing bedmattress. If using a powered mattress ensure themattress hose exits at the foot end on the right handside and the coloured cover is uppermost.3. Secure the mattress to the bed frame/existingmattress using adjustable straps - pass strapsbeneath or around bed frame mattress platform/bed mattress and secure with the buckles (Fig. 1),allowing for moving components on electric bedframes. This is important as it stops the mattressbecoming detached from the bed frame/existing bedmattress and causing possible injury to the patient. Astrap extension kit is available for use with divan beds(part number 97-50-10-153).4. Suspend the power unit from the foot board of the bedhaving first adjusted the hanger brackets as instructed at the rear of the unit. Alternatively thepower unit may be placed on the floor.5. Attach the air supply hose to the power unit by aligning the black line on the air supplyhose connector with the black line on the power unit connector and pushing together.Rotate the mattress hose connector clockwise until the green indicator fills the indicatorhole on the power unit connector (Fig. 2).6. Plug the smaller end of the power lead into the left hand side of the power unit, and theother end into mains outlet in wall. Ensure that the mains lead and tubing cannot becometrapped in the bed frame.7. Switch the power on at the outlet, and at the side of power unit adjacent to the powerlead entry.8. The system will display STARTING, then INITIALISING whilst the mattress inflates (thiswill take between 15 - 20 minutes).Fig. 1Fig. 2