OPERATING THE CRYOWIZ
The front display of the CryoWiz™ shows the system’s status and provides (6) pushbuttons for performing the
normal operating functions of the unit.
Source Selection
The SOURCE button on the front panel allows for manual switching of the active bank. The SELECTED status
indicator lights provide feedback to indicate which side is chosen. Select which side you wish to operate initially
by using the SOURCE button.
Mode Selection
The MODE button allows you to change mode of operation. The system will initially start up in the ON DEMAND
mode. To change to KEEP FULL mode, press the MODE button once. Make sure your mode of operation is
suitable for your system’s demand and sources.
Reset
The RESET button is primarily used to reset the system after a depleted bank has been replenished following
illumination of the REPLACE warning light. The REPLACE status light can only be cleared if the side with the
REPLACE condition has its pressure restored to a value above the trip point.
The RESET button must also be pressed to clear any alarm condition. Ensure that the cause of the alarm
condition has been rectified before pressing RESET.
Purging
During normal operation, any necessary purging is done automatically. If desired, you can manually purge either
side by pushing and holding the LEFT PURGE or RIGHT PURGE button. The left and right banks each have a
dedicated LIQUID light. When the light is yellow, the unit has determined that the supply source is not in need of
replenishment; however it does need to purge a buildup of gaseous nitrogen. Once the CryoWiz™ detects
liquid at the source valve, the light will change to green.
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