Install Instructions

FV38 Rev. D 2/27/12
Page 6
A. Install stop valve assembly using sweat solder adapter
kit if applicable. Thread sealing compounds should
be used on
male NPT threads only.
E
C
D
B
Attach Valve Body to Stop Valve
1.) Before the supply water is turned on, be sure all stop valves
are closed off tight. The stop valves can be opened and
closed by using the adjusting screw located at the center of
the stop valve cap. Stop valve adjustments can only be
made by using the adjusting screw. It is not necessary to
remove the stop valve cap (F) when making adjustments.
If for any reason it becomes necessary to remove the
stop valve cap, be certain the water is shut off at the main
supply valve.
2.) Prior to inserting the flush valve tailpiece (B) into stop valve
(A), be certain that the O-ring seal (C) is located in O-ring
seal groove at the end of the tailpiece and that the locking
nut (D) and locking snap ring (E) are located as shown.
Care should be taken not to damage the O-ring when in-
serting the tailpiece into the stop valve. If lubrication is
needed, wetting the O-ring with water will be sufficient.
3.) Insert the flush valve tailpiece (B) into the stop valve (A) and
hand tighten the lock nut (D) to the stop valve. Level the
entire unit.
When all stops are connected to the water supply and
water pressure is available, flush the supply piping to
remove dirt, metal chips, etc., from system.
A
A. Before the valve is installed, open each stop fully for a
brief time and catch the water in a two gallon or larger
bucket. For multiple installations, start with the stop
valve closest to
the water supply
and work toward
the most remote
valve.
B. Due to the small
passages and
orifices, it is not
possible to
flush the piping
through the low
volume valve.
C. Once the lines
are flushed, the
valve can be
installed.
Step 1 Step 2
Step 3
Figure 5
Figure 7
Figure 6
Mechanical
The AquaVantage
®
design is optimized to operate between 25 and 80 psi (172 to 552 kPa) of water pressure (running). The
minimum pressure required for the valve to work properly is determined by the fixture selected. Please consult fixture manufacurer
for water pressure requirements. Protect the chrome or special finish of this flushometer during installation. Do not use toothed
tools to install or service the valve as this will damage the finish.
Also, see “Care and Cleaning” section of this manual.
F