Specifications

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2. To lower the CO
2
consumption rate and extend the operating time per
tank, insulation should be added to the chamber. Adding insulation will
reduce heat loss and aid in stabilizing the chamber temperature
(especially at very low temperatures).
4.2.1.6 Maintenance and Troubleshooting
The Model 563 Liquid CO
2
Cooling System should provide years of trouble
free service. Other than changing CO
2
tanks when depleted, very little
servicing is required.
Before performing any service, the pressurized CO
2
must be bled from
the system. See section 4.2.1.4.
1. Clearing a clogged Cooling Nozzle.
Occasionally, the Cooling Nozzle may become clogged due to impurities
in the CO
2
, small pieces of dirt or small pieces of Teflon sealing tape
breaking free and lodging in the nozzle.
Item #2, the Cooling Nozzle Cleaning Tool is provided to help clear such
blockages. If the nozzle is extremely clogged, it may be necessary to
completely remove the nozzle, clear the orifice, and reinstall it.
2. If the system is not producing a cooling effect after clearing the nozzle,
make sure the CO
2
tank is full and the manual valve is fully open.
3. If the valve does not fully close when the system is turned “OFF”, a small
piece of dirt, etc. may have lodged in the valve seal. The valve may be
taken apart to inspect the seal.
4. Remove AC Power from the unit.
5. Remove the solenoid from the valve stem.
6. Using a wrench, carefully unscrew the valve stem from the upper portion
of the valve body.
7. The stem contains a plunger with a round, red seal on the top. Make sure
the seal is clean and free of debris. Also check the valve internally for
obstructions.
8. After cleaning, carefully replace the Valve Stem and Solenoid.
9. For help with any other problems please contact ETS.