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OWNER’S MANUAL
APPENDIX A
Technical Features
A.1. Cabinet: The AN74i/ix cabinet is assembled from grain finish stainless steel with
molded ABS front and rear end plates. The door is assembled from a molded polystyrene
outer door and inner stainless steel liner. The door is provided with an exterior grain finish
stainless steel cover panel, door support arm and latching lock with removable key.
Protective rubber feet are attached to the lower cabinet panel.
A.2. Pumps: The lower cabinet is ventilated by means of two linear oscillating pumps
located in the enclosed top cabinet. The pumps remove the air from inside of the lower
cabinet and sterilization liner bag and exhaust the air to the outside. The 3/4” (1.9 cm) in-
side diameter braided PVC tubing may be up to 200 feet (60.96 meters) in length. During
sterilization and ventilation cycles, the pumps maintain a negative pressure (vacuum) in the
lower cabinet with respect to the room where the sterilizer is located. If an abator is in-
stalled it uses a third linear pump that is enclosed in the abator cabinet.
A.2.a. Ventilation Pump: The cabinet ventilation pump will run continuously from
the time the operator pushes the START button at the beginning of the cycle until the 12
or 24 hour sterilizing cycle is complete. After that, during the 2 hour purge cycle, it will
alternate with the purge pump, running for two minutes and then shutting down for two
minutes until the operator:
1.Opens the door to remove the sterilized items; and
2.Presses the EXIT button.
The cabinet ventilation pump is designed to exhaust the lower cabinet at a minimum rate
of 38 liters per minute. These specifications are for a cabinet equipped with a maximum
of 200 feet (60.96 m) of 3/4” (1.9 cm) inside diameter braided PVC tubing with one 90º
bulkhead fitting at the back of the cabinet and one 90º bulkhead fitting at the interior
wall above the sterilizer.
Additional Aeration: If the operator wishes to use the sterilization cabinet to further
aerate the sterilized items after the normal 14/26 hour sterilization and ventilation cycles
are completed, the operator may simply leave the sterilizer running when the UNLOAD
STERILIZER screen appears. A count-up timer will appear on the screen showing the
additional aeration time after the end of the normal 14/26 hour sterilization and aeration
cycle. When the operator wishes to stop the additional aeration, they simply need to fol-
low the steps outlined in A.2.a. above.
A.2.b. Purge Pump: The second exhaust pump, referred to as the purge pump, is
connected to the purge tube assembly and sterilization liner bag by a tube connected to
the front right corner of the lower cabinet. Purging is the intermittent flushing of the
sterilization liner bag with fresh air and takes place at the beginning and end of the cycle.
© Andersen Products Ltd