Watts 909 Series Installation, Maintenance & Repair

Installation, Maintenance, & Repair
Series 909 and LF909
Reduced Pressure Zone Assemblies
Sizes: ⁄ " – 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.
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.
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. 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.
Testing
For field testing procedure, refer to Watts installation sheets
IS-TK-DP/DL, IS-TK-9A, IS-TK-99E and IS-TK-99D found on www.
watts.com.
For other repair kits and service parts, refer to our Backflow
Prevention Products Repair Kits & Service Parts price list PL-RP-BPD
found on www.watts.com.
For technical assistance, contact your local Watts representative.
No. 909QT-S 1
NOTICE
Inquire with governing authorities for local installation requirements
NOTICE
For Australia and New Zealand, line strainers should be installed
between the upstream shutoff valve and the inlet of the backflow
preventer.
Its important that this device be tested periodically in com-
pliance with local codes, but at least once per year or more
as service conditions warrant. If installed on a fire sprinkler
system, all mechanical checks, such as alarm checks and
backflow preventers, should be flow tested and inspected
internally in accordance with NFPA 13 and NFPA 25.
RP/IS-909S
⁄ " shown
1
2