2
300 SERIES COLD CLIMATE FLUSHING SYSTEM
Installation Instructions
GENERAL
INSTALLATION
Site Evaluation
Each Hydro-Guard Unit installation
is unique and will require a
minimum of advance planning. Prior
to the installation of the device, the
drainage patterns for the intended
installation location should be
reviewed. The drainage pattern
must permit discharged water to
flow through a drain line away from
the Hydro-Guard Unit. The 300
Series Flushing System features
threaded brass 1" inlet and 1"
outlet connections. Installation will
require the contractor to plumb
Overview
The Hydro-Guard 300 Series Cold
Climate Unit, is the industry’s only
Below-Ground programmable flushing
apparatus. This Unit is suitable for
year-round use in cold climates.
This Automatic Flushing System has
been designed, engineered, and
manufactured to provide outstanding
dependability and performance.
Please read and retain this manual
for future reference, training,
troubleshooting, and maintenance.
Hydro-Guard 300 Series Cold
Climate Flushing Unit
The Hydro-Guard 300 Series
Cold Climate Unit is housed in a
Mueller Thermal-Coil Meter Box
that is approximately 21 inches
in diameter. The bury depth will
vary depending upon the depth of
the utility’s water lines (Available
Range: 48" to 120"). The box is
constructed with low lead NTP
male threads and is to be placed
by the contractor at a location
agreed upon by the end user. The
box features coiled tubing that will
route water from the water utility’s
potable water distribution line to
the meter assembly, through the
300 Series’ flushing components,
and discharge through a discharge
service routed to an acceptable
point of discharge (i.e., a storm
sewer, swale, storm pond, etc.).
The meter and flushing assembly
can be raised for maintenance and
repair and then lowered back down
into the box below the frost line.
A medium density foam insulation
pad, freeze protection system, and
composite lid (an optional cast
lid is available) help protect the
flushing and meter assembly from
freezing in the winter.
WARNING: Proper lifting,
loading/unloading tools and
techniques must be followed
when handling this device.
Damage to working components
can occur if dropped.
the inlet water service line to the
connection marked "inlet" and
plumb the discharge line to the
connection marked "outlet". The
inlet service and discharge water
lines (by others) shall be installed
at the same bury depth as the
connections. The discharge line
should allow water to flow away
from the Unit. The recommended
minimum slope for the discharge
piping is ½" per foot. The
recommended final discharge points
may include a storm drain, drainage
or retention pond, or a storm swale.
!
1.
Remove the Hydro-Guard Unit
from its packaging and inspect for
possible damage during shipping.
2.
Turn off the service line feed.
3.
Excavate a suitably sized ditch
ensuring it is connected on one side
to the utility’s service line trench.
Remove any debris that might
create uneven pressure on the Unit.
Compact the bottom of the hole
in order to minimize settling after
installation. Place #57 stone. Then,
place non-compacted clean bedding
material within the bottom of the
hole. Provide a bed of crushed
gravel approximately 6 inches thick
or place bricks or cement blocks
below the pit to allow for drainage
and provide support.
TYPICAL INSTALLATION
Cast Iron Vault Lid
Double Check Valve
1" Mueller Systems
Meter Sold Separately
8-Tablet Dechlorination
Supply
(By Others)
1" Male
Thread Ends
Discharge (By Others)
Grade
Ground
Programmer
