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Open Expansion Tank

For MTA TAEevo product line only

  • Facilitates cooling loop filling by manually pouring coolant into external reservoir
  • Provides a visual indication of coolant level and top-off convenience
  • Must be installed at the highest point of the coolant loop to avoid overflow possibility



  1. Install components as shown making sure that valves A & B are open and valve C is closed.
  2. Add water or water-coolant mixture into the tank opening D.
  3. Continue filling slowly until a level is maintained at about half of the expansion tank volume.
  4. Operate the chiller pump to circulate coolant throughout the coolant loop.
  5. Add coolant as required to maintain a steady level in the tank and top off as needed.