Watts 008QT Series Installation, Maintenance & Repair

Installation, Maintenance, & Repair
Series 008QT, LF008QT, 008PCQT, LF008PCQT
Spill-Resistant Pressure Vacuum Breaker
Sizes: ⁄ ", ⁄ ", ⁄ " and 1" (10, 15, 20, and 25mm)
3 1 3
8 2 4
Models: 008/LF008
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 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.
Corrosive water conditions, and/or unauthorized adjustments
or repair could render the product ineffective for the service in-
tended. Regular checking and cleaning of the product's internal
components helps assure maximum life and proper product
function.
Installation Requirements
1. Install a minimum of 1" above flood level of fixture if factory deck
mounted or a minimum of 6" if general plumbing application.
2. Install bonnet side up and allow for accessibility for testing/ser-
vice. Do not install in concealed locations or areas where water
leakage can cause damage due to normal wear of the internal
parts.
3. Do not undersize supply or oversize the valve in relation
to demand.
4. Do not install where backpressure can occur.
5. Protect assembly from freezing.
Note: Use "L" suffix for left-hand outlet.
6. The installation of a strainer ahead of the backflow preventer
is recommended to prevent fouling of the check assembly and
resultant spillage from the valve during start up and repressuring.
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.
Watts 008QT
⁄ ", ⁄ "
3 1
8 2
Installations
008QT/LF008QT Watts P60
Pressure Reducing Valve
Min.
of 1"
Test
Cock
Shutoffs
Strainer
⁄ " Hose Adapter
3
4
with strainer washer
Supply Hose
008QT/LF008QT
6"
008QT/LF008QT
Supply Line
to be installed a
minimum of 6"
above the flood
rim if applied for
general plumbing
applications.
RP/IS-008QT
Watts 008QTS
3 ⁄ ", 1"
4
Solenoid Valve
Dispensing Inducers
Strainer
recommended to
prevent fouling of
the check assembly
and resultant spillage
during start up and
repressurizing.
Flood Rim Level