Laird Nextreme NRC1200 Series, Manual

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and they should never be used with deionization (DI) filter. Furthermore, the inhibitors will be removed
from the coolant that would normally prevent corrosion.
Suggested Contaminant Limits:
PPM
Organics
Algae, Bacteria, etc. 0
Inorganic Chemicals
Calcium <10
Chloride <25
Copper <1.0
Iron <0.2
Lead 0
Magnesium <5
Manganese <0.05
Nitrates \ Nitrites <10
Potassium <2
Silicate <5
Sodium <4
Sulfate <25
Hardness <1
Total Dissolved Solids <25
Other Parameters
pH 6.8. 7.5
Resistivity < 3 MΩ -cm
*
Requirements

Unit prepared for maintenance. Refer to Preparing the Unit for Maintenance .

Power connected to unit.

Coolant hoses connected to the unit (Make sure the hoses are corrected to the correct ports).
Required Tools and Materials

Filling funnel

Measuring cup

Absorbent cloth
Procedure
1. Remove the Fill Cap.
2. For information regarding coolant to be used and quantity, refer to Specifications . Use a
filling funnel to avoid moistening any current-carrying components with coolant.
Note: If refilling coolant, go to last step.
3. Add coolant up to required level. Ideal coolant level is just below the ‘HIGH’ marking on the
front view port of the tank.
4. Press the ‘PUMP’ button on the LCD panel to fill the coolant lines to the application.
5.
When the tank level starts reducing, continue adding coolant through the fill port, until the
ideal coolant level is reached with the pump continuously running.
6. Note: Do not let the pump run dry as it can be damaged.
7.
Mount the coolant cap again.
The coolant is now added.
*
3 MΩ -cm deionized water is acceptable for use the High Purity Plumbing option. Otherwise, the
maximum water resistivity should be 0.1 MΩ -cm.