• 3D TRASAR
®
Controller (#060-TR5500.88) for systems larger than 250 gallons to enable precise and
continuous monitoring of system water chemistries: conductivity, pH, corrosion rate, and turbidity.
• Azole test kit
– Nalco P/N 460-P3119.88 – Triazole Reagent Set, 25 mL
– Nalco P/N 500-P2553.88 – UV Lamp with power supply, 115 VAC
– Nalco P/N 400-P0890.88 – Nalco DR/890 Colorimeter
– Nalco P/N 500-P1204.88 – 25 mL graduated cylinder
• Nalco bacteria test kit
– Nalco P/N 500-P3054.88 – Bacteria dip slides
• Water resistivity monitor with 0-10 MΩ.cm range
– Nalco P/N 400-C006P.88
Required materials and equipment
The following items must be available to properly and safely complete the initial system start:
• De-ionizing cartridges of appropriate capacity (optional).
• Nalco treatment chemicals in appropriate quantities.
– System with 75.7 liters (20 gallons) or less coolant: Use a suggest prepackaged cleaner and inhibitor
solution: Nalco 460-CCL2567 or Nalco CCL2567 and Nalco 460-CCL100 or Nalco CCL100. If
exposure to bacterial is suspected or a concern, biocides such as Nalco H-550 or Nalco 73500 can be
used. If fungi are suspected or a concern, Nalco 77352 can be used.
– System with greater than 75.7 liters (20 gallons) of coolant: Use a suggest using concentrated
chemicals. The cleaner in concentrated form is Nalco 2567. The inhibitor in concentrated form is
Nalco 3DT-199. If exposure to bacterial is suspected or a concern, biocides such as Nalco H-550 or
Nalco 73500 can be used. If fungi are suspected or a concern, Nalco 77352 can be used.
• A method to add chemicals: Use an installed system chemical shot feeder, an appropriately sized
chemical feed pump, or both.
• Source of demineralized water, reverse osmosis water, deionized water, or distilled water.
• Proper personal protective equipment.
• Approved drainage to drain pre-cleaning waters (for example, sanitary sewer). You are responsible for
the drainage process according to local regulations.
• Appropriate test kits to monitor Nalco 3DT-199 residual and bacteria count after Nalco H-550, Nalco
73500 or Nalco 77352 addition.
• Water resistivity monitor with 0-10 MΩ.cm range.
Initial treatment for systems smaller than 75.7 liters (20 gallons)
Use the following procedure to clean your system:
Note: This procedure must be performed on the cooling loop before any computer racks are connected to
the system.
1. System must be empty. If it is not empty, you must drain the system completely.
2. Remove all the lters from the lter housings.
3. Ensure that bypass hoses are connected between the supply and return portions of the cooling loop to
ensure the cleaning of all sections of the system.
4. One of the following two cleansing procedures can be used:
a. Chemical cleaning - This method is the most effective way for cleaning the plumbing loop.
1) Fill the system with cleaning solution. The suggested cleaning solutions are Nalco 460-CCL2567
or Nalco CCL2567.
164
Power Systems: Racks and rack features
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