FV237 Rev. E 11/9/11
Page 2
PRIOR TO INSTALLATION
Prior to installing the ZER Flushometer, install the
items listed below:
• Closet or urinal fixture
• Drain line
• Water supply line
IMPORTANT:
• ALL PLUMBING IS TO BE INSTALLED IN ACCORDANCE WITH
APPLICABLE CODES AND REGULATIONS.
• WATER SUPPLY LINES MUST BE SIZED TO PROVIDE AN
ADEQUATE VOLUME OF WATER FOR EACH FIXTURE.
• FLUSH ALL WATER LINES PRIOR TO OPERATION (See Step
9).
• DIRT AND DEBRIS CAN CAUSE FLUSH VALVE TO RUN CON-
TINUOUSLY.
The ZER is designed to operate with 20 to 80 psi (138 to 552 kPa) of water pressure. THE MINIMUM PRESSURE REQUIRED TO
THE VALVE IS DETERMINED BY THE TYPE OF FIXTURE SELECTED. Consult fixture manufacturer for pressure requirements.
Protect the chrome or special finish of this flushometer. DO NOT USE TOOTHED TOOLS TO INSTALL OR SERVICE THE VALVE.
1.)
Install stop valve assembly
(A)
using proper size supply
escutcheon and sweat solder adapter kit if applicable. Thread
sealing compounds should be used on male NPT threads only.
2.)
Prior to inserting the flush valve tailpiece
(B)
into stop valve,
be certain that the O-ring seal
(C)
is located in O-ring seal groove
at the end of the tailpiece and the locking nut
(D)
and locking
snap ring
(E)
are located as shown. Care should be taken not
to damage the O-ring when inserting 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. Plumb the entire
unit.
4.)
Determine the length of vacuum breaker tube
(F)
required
to join the flush valve and fixture spud. Cut the vacuum breaker
tube, if required, to this length. Assemble the vacuum breaker
tube assembly and spud nut assembly to the flush valve and
fixture spud.
5.)
Hand tighten spud nut and vacuum breaker tube nut to fix-
ture and flush valve. Adjust the valve assembly for plumb.
Tighten fixture spud nut, vacuum breaker tube nut and lock nut
with a wrench.
Do not turn water on until batteries are in-
serted – see 6.
1
3
2
4
E
C
A
D
F
B
B
D
A
