6
SVRS installation. Turn off all pump motors and select the best location for SVRS
installation.
SVRS LOCATION
1.
Locate the SVRS on the main drain suction line
, between the main drain
and the main drain line isolation valve. Install the SVRS away from the pump
suction (12” to 18” where possible). Do not close-couple the SVRS to the pump
suction. For new construction installations, the SVRS should be located 18” to
60” from the pump suction on the main drain line. For retrofit installations, the
SVRS should be installed 12” from the pump suction, and within 60” of the pump
suction inlet whenever possible. See enclosed installation diagrams for further
details.
Isolate the main drain prior to cutting pipe in a flooded application.
2.
Find a six to twelve inch section of pipe
where the SVRS can be installed. This
location can be either a vertical or horizontal section of pipe. Locate and orient
the SVRS away from other valves and high traffic areas. The SVRS can face any
direction, but
must be installed vertical and level
.
SVRS INSTALLATION
1. Install a tee fitting at the optimum
horizontal section of pipe
location. If a
vertical section of pipe
is the only option it will require an elbow be used to
mount the SVRS off the installed tee. A reducing bushing may also be required to
mate the 1-1/2” diameter SVRS to the tee fitting installed. Utilize pipe nipples to
join fittings in a close-coupled fashion, as required.
Note
:
A 6” long, 1-1/2”
diameter, vertical section of Schedule 40 PVC pipe is to be installed between
the SVRS and tee, or the SVRS and elbow.
The 6” vertical pipe section has no
bearing on SVRS operation, but is recommended in the event the SVRS unit must
be removed or relocated in the future.
2. Install a full port, fast acting test valve (two-way, ball or butterfly) in the main
drain suction line before the tee fitting for the SVRS unit. The test valve should
be installed in the main drain suction line between the main drain and the SVRS,
within two feet of the Vac-Alert
TM
unit for ease in testing.
A test valve need not
be installed if the SVRS is to be mat tested at the main drain. Where
hydrostatic valve(s) are present in the circulation system, then the Vac-
Alert
TM
should be mat tested at the main drain at least three times after
installation.
3. For existing installations, when a snap tee or clamp-on tee is installed, after the
fittings have dried, use a battery-operated hand drill to drill a 1” or 1-1/4” hole in
the suction piping.
4. Install the SVRS unit on the 6” long, 1-1/2” diameter vertical pipe section, and let
all glue joints dry before proceeding to
Pump Start-Up Test
.
