Cascade Sciences CVO-5-EX Series, Installation & Operation Manual, Page: 63 / 132

63 | P a g e
cascadesciences.com
|
Tel. 503 847-9047
INSTALLATION
O
PTIONAL
B
ACKFILL
G
AS
S
UPPLY
A second supply of clean air or inert gas can be connected to the oven. This gas source is separate
from the one used by the oven Purge and Pressurize system and provides an option to backfill the
oven chamber with a different gas supply. For example, some facilities may wish to purge and
pressurize the oven safety enclosures using a compressed clean air system but backfill the hot
oven chamber from a gas nitrogen source.
•
The maximum allowed gas pressure for the backfill gas supply is 15 psi.
•
Exceeding 15 psi of gas pressure may damage the oven
.
Procedure
1. After connecting the Purge and Pressurize gas supply, connect your optional backfill gas
supply to the Backfill gas-in port.
2. Use a clamp to secure the gas line to the port.
Note:
in this configuration, oven operators use the valve control labeled
Backfill
on the front
control panel to backfill the oven from the optional gas source. This should be noted in your
process SOPs or recipe procedures.
Backfill gas port to oven chamber. ¼ inch (6 mm) outside dimension.
Optional Backfill Gas Supply
Required Purge and Pressurize Gas Supply