SETTING U P THE ZOLL VENTILATOR3-10 www.zoll.com 906-0731-01-05 Rev. C8. Select Operating Mode (Optional)The ventilator offers four operating modes that you can select to optimally manage the patient(each mode can use either pressure or volume targeting):1. AC (Assist/Control) -- The patient receives either controlled or assisted breaths. When thepatient triggers an assisted breath, they receive a breath based on either the volume orpressure target.2. SIMV (Synchronized Intermittent Mandatory Ventilation)-- The patient receives controlledbreaths based on the set breathing rate. Spontaneous breaths are either unsupported demandflow or supported using Pressure Support. (This mode is not available in the AEV® unit.)3. CPAP (Continuous Positive Airway Pressure) -- The patient receives constant positiveairway pressure while breathing spontaneously. Spontaneous breaths are either demand flowor supported using Pressure Support.4. BL (bilevel) -- the ventilator provides two pressure settings to assist patients breathingspontaneously: a higher inhalation pressure (IPAP) and a lower exhalation pressure (EPAP).To select the operating mode, press the Mode parameter button, turn the selection dial tohighlight the mode you want to use, and press the Accept/Select button.When transitioning from active ventilation to NPPV modes, or from NPPV Modes to activeventilation modes, the following parameter/alarm limit may be adjusted:Warning! The transition into NPPV automatically sets the rise time to 3, which may be too fast forinfants and small children. Before using the ventilator with an infant or small child, youshould always configure the ventilator appropriately before attaching the patient.Note: An alarm triggers when you connect the patient to the ventilator while the Start Menuis still active. To resolve the alarm, you must select a mode of ventilation and configurethe device appropriately for the patient. In addition, you should perform theOperational Test procedure before reconnecting the patient to the device.Alarm/ParameterLow BPM AlarmHigh BPM AlarmLow Airway Pressure AlarmPEEPVT High LimitVT Low LimitRise TimePressure Support