Watts 909 Series Instruction, Installation, Maintenance And Repair Manual

Installation, Maintenance, and Repair Manual
Series 909, LF909-FS, 909RPDA-FS
Reduced Pressure Zone Assemblies
Reduced Pressure Detector Assemblies
Sizes: 2 1 ⁄ " – 10"
2
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 installa-
tion. If the information provided here 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.
WARNING
!
The installation and maintenance of backflow assemblies should
be performed by a qualified, licensed technician. Failure to do so
may result in a malfunctioning assembly.
Series 909/LF909-FS is equipped with an integrated flood sensor
that, when activated, triggers notification of potential flood events
from excessive relief valve discharges. An add-on sensor connection
is required to implement the activation. A retrofit sensor connection
kit is available for existing installations. See "Add-on and Retrofit
Sensor Connection Kits." on page 8.
Watts
Designed for inline servicing
Technology integrated for flood detection upon
activation with Sensor Connection Kit
NOTICE
For Australia and New Zealand, line strainers should be installed
between the upstream shutoff valve and the inlet of the backflow
preventer.
For field testing procedure, refer to Watts
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 Backflow
Prevention Products Repair Kits & Service Parts price list
PL-RP-BPD at watts.com.
For technical assistance, contact your local Watts representative.
RP-IS-909-909RPDA-FS-1915468
® 909/LF909-FS
installation
®