Associated Environmental Systems SD-302 - CO2;LN2 Boost

OPERATION
4-7
CO2/LN2 BOOST (OPTIONAL)
Boost cooling is available for applications that require a fast pull-down rate. A CO
2
supply tank
is required with a pressure of 300 or 1000 PSIG (Specify).
To use the CO
2
/LN
2
boost:
The chamber must have been ordered with one of the following options please check which
option the chamber has before connecting the auxiliary cooling source.
Liquid CO
2
using a 300 psi bulk type system.
Liquid CO
2
using a 1000 psi siphon type, liquid CO
2
cylinder.
LN
2
using 12 to 40 psi LN
2
.
Close the chamber door and turn the POWER (Circulation), HEAT, COOL, and CO
2
(or LN
2
)
Switches ON.
Using the controller, establish the low temperature set point.
*CO
2
/LN
2
Boost is enabled through Event 7 in Profile Programming.
CO
2
Nipple (1/8” MPT) LN
2
Nipple (1/4” MPT)