Lochinvar CVL1000 User Manual

Total System Efficiency

Lochinvar Chilled Water Buffer Tanks are designed to
create volume in a chilled water system when the system
and associated piping can not provide the chiller with
the volume required for efficient operation. To meet this
criteria, Lochinvar has designed a Chilled Water Buffer
Tank that is an ASME certified vessel and is available in
various custom configurations and tank sizes.

Chiller manufacturers recommend a specific volume
of water per ton of chiller capacity to maintain water
temperature stability. These recommendations range from
3 to 5 gallons of system volume per ton of chiller capacity
when used in a comfort cooling application to system
volumes of 6 to 10 gallons per ton when used in a process
cooling application where temperature stability is critical.

Chilled Water
Buffer Tank

Selecting the right tank is easy. After determining how
much additional volume the tank will provide, select the
size and configuration of the system connections that will
best connect the tank to the chilled water system.

Outstanding Features:

• Vertical Internal Baffle to encourage
proper mixing of fluid

• 125 PSI Working Pressure

• ASME Sec VIII, U-Stamped Vessel

• Five Year Limited Warranty

• Flanged Connections

• Red Oxide Paint

Optional Equipment:

• “R-12” Spray Foam insulation
with UV Resistant Exterior

• 12” x 16” Manway (300 and above)

• 4” x 6” Hand Hole

• Automatic Air Vent

• Temperature and Pressure Gauge

• Lifting Lugs

Chilled Water Buffer Tank w/Upper Connections

Chilled Water Buffer Tank w/Lower Connections

Max.
Model Gallon Connection Weight
Number Capacity A B D E F Diameter* (lbs.)

CVU120 120 56” 28” 20” 36” 19” 6” 298
CVU200 200 86” 28” 20” 66” 29” 6” 430
CVU300 300 76” 36” 23” 53” 25” 8” 533
CVU400 400 76” 42” 25” 52” 25” 8” 818
CVU500 500 87” 42” 25” 62” 29” 8” 930
CVU750 750 100” 48” 27” 73” 33” 8” 1430
CVU1000 1000 124” 48” 27” 97” 41” 8” 1733

Notes: * For Larger Sizes Consult Factory
Custom Sizes and Configurations are Available. Consult Factory for details

Max.
Model Gallon Connection Weight
Number Capacity A B D E F Diameter* (lbs.)

CVL120 120 56” 28” 32” 24” 37” 6” 298
CVL200 200 86” 28” 62” 24” 57” 6” 430
CVL300 300 76” 36” 49” 27” 50” 8” 533
CVL400 400 76” 42” 48” 29” 50” 8” 818
CVL500 500 87” 42” 58” 29” 58” 8” 930
CVL750 750 100” 48” 69” 31” 66” 8” 1430
CVL1000 1000 124” 48” 93” 31” 82” 8” 1733

Notes: * For Larger Sizes Consult Factory
Custom Sizes and Configurations are Available. Consult Factory for details

When ordering it is necessary to specify a water connection size and type.

Buffer Tank Sizing Formula:

Buffer Tank Size = (Required System Volume) - (Actual System Volume)

CWB-01

Lochinvar Corporation • 300 Maddox Simpson Pkwy • Lebanon, TN 37090 • 615-889-8900 / Fax: [phone]

www.Lochinvar.com

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