Despatch LCC1-51-3 - Manual (Page 43)

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LCC1-16N-3 AND LCC1-51N-3 N2 NEEDLE VALVE
Nitrogen MAINTAIN needle valve.
Turn Event 3 (Purge) to ON, this is the “Purge” cycle. Adjust nitrogen “Purge” flow
with the valve on the flow meter. Turn Event 3 Off. This is typically the highest flow
you may need at any time. Adjusted to 200 SCFH at the factory.
Turn Event 4 (Maintain) ON, this is the “Maintain” cycle. Adjust the Maintain
nitrogen flow with this needle valve. The flow will be indicated on the same flow
meter. (DO NOT adjust this “Maintain” flow with the valve on the flow meter). Use
only this needle valve for the Maintain portion of flow. This is the flow you will need
to maintain the level of oxygen reached during the Purge cycle. Typically set at 100
– 160 SCFH at the factory. Once this is set there is a “locking” nut on the needle
valve that may be tightened lightly to prevent maladjustments.
Once the valve on the flow meter is set for the Purge, it does not need to be
readjusted.