Watts LFU009 - Manual

Installation, Maintenance, & Repair
Series 009 and LF009
Reduced Pressure Zone Assemblies
Sizes: 1 ⁄
4
" – 3" (8 – 80mm)
RP/IS-009
3" (80mm) 009NRS
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.
NOTICE
For Australia and New Zealand, line strainers should be installed
between the upstream shutoff valve and the inlet of the backflow
preventer.
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 informa-
tion 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.
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.
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 !
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.
Installation Instructions
Series 009 and LF009
Indoors –
Figure 1
For indoor installations, it is important that the assembly be easily
accessible to facilitate testing and servicing. If it is lo cat ed in a line
close to a wall, be sure the test cocks are easily accessible. A drain
line and air gap (see literature ES-AG/EL/TC) should be piped from
the relief valve connection as shown, where evidence of discharge
will be clearly visible and so that water dam age will not occur.
Therefore, never install in concealed locations.
Figure 1
Air Gap
Main
Strainer
Meter
2 1 ⁄ 2 " – 3" (65-80mm) 009
12"
NOTICE
In an area where freezing conditions can occur, Series 009 and
LF009 should be installed above ground in an insulated enclosure.
Series 009 and LF009 must be installed in an ac ces si ble location
to facilitate testing and ser vic ing. A discharge line should be piped
from the air gap at the relief valve con nec tion making sure that
there is adequate drainage. Never pipe the discharge line directly
into a drainage ditch, sewer or sump. Series 009 and LF009
should never be in stalled where any part of the unit could become
submerged in standing water.
Outside –
Figure 2
In an area where freezing conditions do not occur, Series 009 and
LF009 can be installed outside. The most sat is fac to ry in stal la tion is
above ground and should be in stalled in this manner when ev er pos-
sible.
It is generally recommended that back flow preventers never be
placed in pits unless absolutely necessary and then only when
approved by local codes. In such cases, a modified pit installation
is preferred.
Now available, WattsBox
Insulated Enclosures,
for more information, send
for literature ES-WB.
Figure 2 WattsBox
12"