Despatch 926E Equipment Manual (C-155)Rev 2/11 - Manual (Page 18)

13
Liquid CO
2
Cylinder Installation
For extensive use at low temperatures, it is recommended that two or more liquid CO
2
cylinders be used in parallel.
This will increase operating time between cylinder changes. Install the liquid CO
2
cylinder(s) as follows.
1.
Turn off POWER switch and disconnect AC input power.
2.
Position the cylinder in a safe and convenient location.
3.
Secure the cylinder in an upright
position with safety chains.
4.
Carefully crack the cylinder valve
slightly before connecting the hose
assembly in order to blow out any
loose scale or rust which may be in
the cylinder.
5.
Connect the hand wheel end of the hose assembly to the cylinder.
6.
Connect the threaded fitting on the flexible hose to the threaded portion on the
chamber bulkhead fitting. The bulkhead fitting must be held in place with a
second wrench while the coolant hose is being attached.
7. When replacing the CO
2
cylinder,
a. Shut off chamber if controls call for cool (see LED L2 on the front panel).
WARNING: WARNING: Always use heavy safety
chains to hold gas cylinders securely in an
upright position. A gas cylinder, damaged
by hitting the floor, can become a
dangerous projectile and cause serious
damage or injury over a wide area.