Installation, Maintenance, and Repair Manual
Series 800M4, LF800M4
Pressure Vacuum Breaker Assemblies
1" – 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 installation. 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. 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 and external components
helps assure maximum life and proper product function.
WARNING
!
Freeze sensor solely provides alerts about a possible freeze
event and cannot prevent a freeze event from occurring.
User action is required to prevent freeze conditions from
causing product and/or property damage.
NOTICE
For Australia and New Zealand, line strainers should be
installed between the upstream shutoff valve and the inlet of
the backflow preventer.
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.
Testing
For field testing procedure, refer to Watts installation sheets
IS-TK-DL, IS-TK-9A, IS-TK-99D, and IS-TK-99E at
www.watts.com.
For other repair kits and service parts, refer to the Backflow
Prevention Products Repair Kits & Service Parts price list
PL-RP-BPD at www.watts.com.
For technical assistance contact your local Watts representative.
800M4FR-FZ
Series 800M4 and LF800M4 antisiphon PVBs (FR and QT
versions) include a freezer sensor to signal building/irrigation
management systems when temperature nears the freezing point.
NOTICE
An add-on connection kit is required to activate the freeze sensor.
Without the connection kit, the sensor is a passive component
that has no communication with any other device. (The kit can
also be used to retrofit existing installations. See "Add-on/Retrofit
Sensor Connection Kit," for ordering details.)
NOTICE
Use of the freeze sensor and activation kit with FZ models does
not replace the need to comply with all required instructions,
codes, and regulations related to installation, operation, and
maintenance of the PVB assembly.
Watts is not responsible for the failure of alerts due to connectivity
or power issues.
RP/IS-FZ-800M4