Use and Care Manual

FV237 Rev. F 6/25/2018

Page 2

PRIOR TO INSTALLATION

Prior to installing the ZER Flushometer, install the

items listed below:

• Closet or urinal xture

• 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

CONTINUOUSLY.

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 xture manufacturer for pressure requirements.

Protect the chrome or special nish of this ushometer. 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 ush 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 sufcient.

3.) Insert the ush 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 ush valve and xture spud. Cut the vacuum breaker

tube, if required, to this length. Assemble the vacuum breaker

tube assembly and spud nut assembly to the ush valve and

xture spud.

5.) Hand tighten spud nut and vacuum breaker tube nut to xture

and ush valve. Adjust the valve assembly for plumb. Tighten

xture spud nut, vacuum breaker tube nut and lock nut with a

wrench. Do not turn water on until batteries are inserted –

see 6.

Figure 1

Figure 3

Figure 2 Figure 4