Piping
• Comply with local codes for proper piping.
• For short runs, use opaque 150 psi minimum rated reinforced EPDM hose. Do not use clear
braided hose.
• For long runs, use copper piping. Terminate the beginning and end of hard runs with vibration
isolators or a short segment of hose to absorb vibration.
• Insulate piping to minimize condensation.
• Label supply and return lines over insulation with arrows indicating flow directions.
• Install isolation ball valves on the supply and return connections at the chiller.
• For water-cooled units, it is recommended to install an 80-mesh wye strainer at the building
water inlet. This will provide some protection for the chiller’s condenser if the facility water has
particulate contaminants.
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