906-0731-01-05 Rev. C ZOLL Ventilator Operator’s Guide 2-9Pneumatic DesignThe ZOLL Ventilator includes an oxygen valve and a compressor to provide the gas to theoutput port. The system includes transducers for pressure measurements including input supplypressure and barometric readings.The wye circuit is part of the ventilator’s pneumatic system. The inspiratory side of the wyecircuit provides gas to the patient. The expiratory side exhausts directly to atmosphere withoutreturning to the ventilator. The ventilator pneumatically controls the exhalation valve and atransducer within the ventilator measures the airway pressure.The following image is a diagram of the ventilator’s pneumatic design.
