Vertiv CoolPhase CDU - Inspect Hygienic Sanitary Flange Connections

• Qualified personnel must install and inspect system piping.
• Contact a local water consultant regarding water quality, corrosion protection and freeze-protection
requirements.
• Field supplied manual shut off valves at the supply and return line should be added so the unit can be isolated
from the rest of the piping as needed.
• Install a monitored fluid detection system that is wired to activate the automatic closure of field installed coolant
fluid supply and return shut off valves to reduce the amount of coolant fluid leakage and consequential
equipment and building damage. The shut off valves must be sized to close off against the maximum coolant
fluid system pressure in case of a catastrophic fluid leak.
• Insulate all piping lines to prevent condensation in applications where the dew point approaches the chilled
water temperature.
• A field provided wye strainer is required in the chilled water return line to the CoolPhase CDU. The wye strainer
protects the pump, brazed plate heat exchanger and system components from debris.
Refer to specific text and detailed diagrams in this manual for other unit specific piping requirements.
The pipe connections and field provided wye strainer are described in the Submittal Drawings on page107
7.3.1 Inspect Hygienic Sanitary Flange Connections
Check Flange Condition
1. Check the condition of the flange faces for scratches, dirt, and scale.
2. Check for corrosion pitting and tool marks.
3. Inspect the gasket seating surfaces.
4. Check the areas on the flange where the nuts will seat. These areas should be flat and free from pitting and
excessive wear.
5. Confirm that the flange is corrosion free and undamaged.
Flange Alignment between Vertiv™ CoolPhase CDU and Field Supplied Flange
1. Visually examine the flange alignment to ensure that an acceptable fit has been obtained.
2. Flange faces should be parallel and aligned.
7 Secondary Fluid Circuit
Requirements
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Vertiv™ CoolPhase CDU Installer/User Guide