Cold Jet P1500 - Installation and Connections; CO2 Connections and Venting; Placement, Spacing, and Power; CO2 Storage Tank Recommendations

Operation Manual P750/P1500/P3000
Cold Jet, LLC Page 11
• Over 100 ft (30 m) - use a “Loop” system (auxiliary liquid CO
2
pump and vapor-to-tank
return line).
Pelletizer Liquid CO
2
Connections for Vapor & Exhaust
• CO
2
liquid supply line: 3/4” (19 mm) JICM
• CO
2
vapor supply line: 1/2” (13 mm) JICM
• CO
2
vapor exhaust line: 2” (51 mm) PVC
• CO
2
vapor recovery line (when applicable): 2” (51 mm) copper tube
Exhaust Venting
• Any structure housing a Pelletizer must have an air circulation system.
• Route the Vapor CO
2
to an exhaust system or vent it to an outside source.
• The exhaust backpressure must be less than 1 psig (.07 bar).
• Use a 2” (51 mm) conduit when exhaust pipe is 30 ft (9 m) or less.
• Use a 3” (76 mm) conduit when exhaust pipe is more than 30 ft (9 m)
• The pipe can be PVC, flexible hose, copper pipe, stainless steel pipe, or sheet metal
ducting.
Placement and Spacing
• The Pelletizer needs to be installed on a level floor with adequate load bearing to
support it.
• Allow a minimum of 60” (1.5 m) of space in front of the Pelletizer for pellet boxes.
Supply Valve Locations
• A safety pressure relief valve must exist between the Pelletizer and the supply line shut
off valves.
• The liquid and Vapor CO
2
shut-off valves and electrical disconnect must be near the
Pelletizer within easy reach of the operator.
Electrical Power Connection
• Cold Jet requires a qualified electrician to install power to the Pelletizer.
• The Pelletizer has been pre-wired for your requested voltage and frequency.
• You must provide the correct hard conduit and four-wire, three-phase power wiring.
Liquid CO
2
Storage Tank Recommendations
• Use a tank large enough to accept a full truckload of CO
2
.
• A refrigerator and vaporizer (heater) are needed to balance the CO
2
temperature and
pressure. Ideal storage conditions are 290 psig (19.99 bar) at 0oF (-18oC).
• The refrigeration should turn on at 295 psig (20.3 bar) and turn off at 285 psig (19.7
bar).
• The vaporizer should turn on at 270 psig (18.62 bar) and turn off at 280 psig (19.3 bar).