Flomatic CB20 Installation Manual
Backflow Preventer Installation Instructions
Models CB20
CAUTION
Installation of this product MUST be performed by qualified, licensed personnel. Faulty installation could
result in an improperly functioning device.
INSTALLATION
FAILURE TO FOLLOW THESE INSTRUCTION WILL VOID ANY WARRANTY
The installer should be sure the proper device has been selected for the particular installation.
Model CB20 is designed for installation on carbonated beverage dispensing systems, as well as non-
carbonated systems, to prevent Carbon dioxide (CO
copper potable water supply line.
Proper performance depends upon following these installation instructions and prevailing governmental and
industry standards and codes. Failure to do so releases DANFOSS FLOMATIC of any liability that it might
otherwise have with respect to that device.
1. Prior to installation of the CB20, pipe lines should be flushed thoroughly to remove all sediment, pipe
scale and other foreign material.
2. The CB20 can be installed in a horizontal or vertical position, in an accessible location to facilitate
servicing. The valve should not be installed where discharge could cause damage to nearby
equipment or property.
3. Install the valve with the arrow on the valve body pointing in the direction of the flow.
4. Connect a vent discharge line to the vent outlet and direct to a safe place of disposal with adequate
ventilation per local and government codes.
5. CAUTION: Under certain backflow conditions the CB20 will discharge water from the vent
port. The vent port should never be directly piped into a drainage ditch, sewer or pump.
Under no circumstances should the vent port or drain line be plugged.
6. It is important that the CB20 be inspected periodically for any discharge from the vent port which will
provide a visual indication of the need for maintenance or repair of the valve.
7. Copper tubing shall not be used downstream of the CB20.
) gas or carbonated water from coming in contact with
2
Danfoss Flomatic
1 Year Limited Warranty: Danfoss Flomatic valves are guaranteed against defects of materials or workmanship when
used for the services recommended. If in any recommended service, a defect develops due to material or workmanship,
and the device is returned, freight prepaid, to Danfoss Flomatic within 12 months from the date of purchase, it will be
repaired or replaced free of charge. Danfoss Flomatics’ liability shall be limited to our agreement to repair or replace the
valve only.
Danfoss Flomatic Corp, 15 Pruyn’s Island, Glens Falls, New York 12801
Phone: 518-761-9797 Fax: 518-761-9798 www.flomatic.com
April 21,2004 Rev. A (7/08)
Beverage
Backflow Preventer Installation Instructions
Models CB20
CAUTION
Installation of this product MUST be performed by qualified, licensed personnel. Faulty installation could
result in an improperly functioning device.
INSTALLATION
FAILURE TO FOLLOW THESE INSTRUCTION WILL VOID ANY WARRANTY
The installer should be sure the proper device has been selected for the particular installation.
Model CB20 is designed for installation on carbonated beverage dispensing systems, as well as non-
carbonated systems, to prevent Carbon dioxide (CO
copper potable water supply line.
Proper performance depends upon following these installation instructions and prevailing governmental and
industry standards and codes. Failure to do so releases DANFOSS FLOMATIC of any liability that it might
otherwise have with respect to that device.
1. Prior to installation of the CB20, pipe lines should be flushed thoroughly to remove all sediment, pipe
scale and other foreign material.
2. The CB20 can be installed in a horizontal or vertical position, in an accessible location to facilitate
servicing. The valve should not be installed where discharge could cause damage to nearby
equipment or property.
3. Install the valve with the arrow on the valve body pointing in the direction of the flow.
4. Connect a vent discharge line to the vent outlet and direct to a safe place of disposal with adequate
ventilation per local and government codes.
5. CAUTION: Under certain backflow conditions the CB20 will discharge water from the vent
port. The vent port should never be directly piped into a drainage ditch, sewer or pump.
Under no circumstances should the vent port or drain line be plugged.
6. It is important that the CB20 be inspected periodically for any discharge from the vent port which will
provide a visual indication of the need for maintenance or repair of the valve.
7. Copper tubing shall not be used downstream of the CB20.
) gas or carbonated water from coming in contact with
2
Danfoss Flomatic
1 Year Limited Warranty: Danfoss Flomatic valves are guaranteed against defects of materials or workmanship when
used for the services recommended. If in any recommended service, a defect develops due to material or workmanship,
and the device is returned, freight prepaid, to Danfoss Flomatic within 12 months from the date of purchase, it will be
repaired or replaced free of charge. Danfoss Flomatics’ liability shall be limited to our agreement to repair or replace the
valve only.
Danfoss Flomatic Corp, 15 Pruyn’s Island, Glens Falls, New York 12801
Phone: 518-761-9797 Fax: 518-761-9798 www.flomatic.com
April 21,2004 Rev. A (7/08)
Beverage
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