USER RESPONSIBILITY
Service and Installation of this product should only be performed by CONCOA or an authorized CONCOA
Service Center technician having extensive knowledge of cryogenic LN2 installations and systems. Requests
for service may be made using the following methods of contact:
CUSTOMER SERVICE: 1-800-225-0473
CONCOA’s FAX: 1-757-422-3125
CONCOA’s E-MAIL: info@concoa.com
CONCOA accepts no responsibility for damage or injury if this product is modified in any way. CONCOA
assumes/accepts no liability or responsibility for damage to individuals or equipment that may occur when
using this product.
DESCRIPTION OF PRODUCT
The CryoWiz™ is a cryogenic switchover used to monitor, control, and switch the flow of cryogenic liquid
nitrogen (LN2) from two independent banks while maintaining an uninterrupted supply.
It consists of four electronically controlled pneumatic valves, two of which are the inlet valves that control the
flow of cryogenic LN2 to the outlet on the bottom of the device. The other two are purge valves that will divert
hot gas upward through fittings on the top of the device, away from the outlet.
The CryoWiz™ monitors LN2 supply and demand using a proprietary computer algorithm to deliver an
uninterrupted supply of LN2 to the outlet of the device.
The status of the CryoWiz™ may be monitored remotely via the Ethernet port. A series of indicator lights
shows the status of the system at any given time. In addition, the CryoWiz™ can interface with a CONCOA
or other remote alarm.
The failsafe position of all valves is Normally Closed (N.C.). A power outage, a cessation of the dry nitrogen gas
supply to the pneumatic valves, or an oxygen deficiency alert relayed to the CryoWiz™ will result in shutoff of the
LN2 supply and the purge outlets.
FEATURES
Operation from Cryogenic Liquid Nitrogen Sources
LN2 dewars provide the Cryowiz™ with an inlet pressure of 22 to 35 PSI. LN2 sources above 35 PSI are not
recommended. Pressures above 35 PSI will result in increased liquid wastage caused by increased flashing.
Each LN2 source bank may be composed of an individual dewar or multiple dewars connected via an
appropriate pipeline or manifold.
High Flow Cryogenic Valves
The CryoWiz™ uses high flow cryogenic valves. The cryogenic valves deliver an optimal supply of LN2 to the
outlet with minimal disturbance in flow and virtually no heat transfer.
Compact Enclosure with Condensate Drain
The entire system is encased in a compact enclosure with limited wall space and with a condensate drain
to eliminate moisture build-up.
Insulated Switching Mechanism
The Insulated Pneumatic Valve Block minimizes heat transfer, reduces condensation, and ensures optimal
delivery of LN2
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