chilled water buffer tank - zilmet usa

• Total Chiller Capacity (Tons)• Chiller Manufacturer’s

Recommended System Volume*• Actual System Volume (Gallons)

Zilmet ZCBT Chilled Water Buffer Tank Sizing and

Zilmet ZHBT Hot Water Buffer Tank Sizing

Oct2020

*Chiller manufacturers recommend between 3 to 6 gallons per ton for typical HVAC and 6 to 10 gallons per ton for nominal cooling when temperature accuracy is critical.

This pdf will calculate for you. Enter the variables in the three highlighted sections.

The example shows sizing for a 260 gallon tank. Choose a Zilmet ZCBT-300.

Chilled Water Buffer Tank Three input variables

are required:

• Boiler Cycle Time* (Minutes)• Minimum Boiler Output (BTU/Hr)• Minimum Rate of Heat Extraction

from tank** (BTU/Hr)• Temperature Differential*** (F)

This pdf will calculate for you. Enter the variables in the four highlighted sections.

The example shows sizing for a tank of 100 gallons. Choose a Zilmet ZHBT-120.

Hot Water Buffer TankFour input variables

are required: