Installation, Maintenance, and Repair Manual
Series LF909 Small
Reduced Pressure Zone Assemblies
⁄
" – 2"
3
4
WARNING
!
Read this Manual BEFORE using this equipment.
Failure to read and follow all safety and use information
can result in death, serious personal injury, property
damage, or damage to the equipment.
Keep this Manual for future reference.
WARNING
!
Local building or plumbing codes may require modifications
to the information provided. You are required to consult the
local building and plumbing codes prior to installation. If this
information is not consistent with local building or plumbing
codes, the local codes should be followed. This product
must be installed by a licensed contractor in accordance
with local codes and ordinances.
!
WARNING
Need for Periodic Inspection/Maintenance: This product
must be tested periodically in compliance with local codes, but
at least once per year or more as service conditions warrant. If
installed on a fire suppression system, all mechanical checks,
such as alarms and backflow preventers, should be flow tested
and inspected in accordance with NFPA 13 and/or NFPA 25.
All products must be retested once maintenance has been
performed. Corrosive water conditions and/or unauthorized
adjustments or repair could render the product ineffective for the
service intended. Regular checking and cleaning of the product's
internal components helps assure maximum life and proper
product function.
NOTICE
For Australia and New Zealand, line strainers should be
installed between the upstream shutoff valve and the inlet of
the backflow preventer.
Testing
For field testing procedure, refer to Watts® installation sheets
IS-TK-DL, IS-TK-9A, IS-TK-99E, and IS-TK-99D at watts.com.
For other repair kits and service parts, refer to the Backflow
Prevention Products Repair Kits & Service Parts PL-RP-BPD
price list at watts.com
For technical assistance, contact your local Watts representative.
LF909-QT-S-FS
Series LF909 Small includes a sensor on the relief valve to
detect excessive discharge and trigger notification of a potential
flood event.
NOTICE
An add-on connection kit is required to activate the flood
sensor. Without the connection kit, the flood sensor is a passive
component that has no communication with any other device.
(A retrofit sensor connection kit is also available for existing
installations. See "Add-on and Retrofit Sensor Connection Kits,"
for ordering details.)
NOTICE
Use of the flood sensor does not replace the need to comply
with all required instructions, codes, and regulations related to
installation, operation, and maintenance of this product, including
the need to provide proper drainage in the event of a discharge.
Watts is not responsible for the failure of alerts due to connectivity
or power issues.
RP/IS-LF909S