Potter VSR-S Mode D'emploi page 2

Installation
These devices may be mounted in horizontal or vertical pipe. On horizontal pipe they should be installed on the top side of the pipe where they will
be accessible. The units should not be installed within 6" (15cm) of a fitting which changes the direction of the waterflow or within 24" of a valve or
drain. Select the proper paddle for the pipe size and type of TEE used see Fig. 2 for instructions on changing paddle. The unit has a 1" NPT bushing for
threading into a TEE. See Fig. 1 for proper TEE size, type and installation. Use no more than three wraps of teflon tape.
Screw the device into the TEE fitting as shown in Fig. 1. Care must be taken to properly orient the device for the direction of waterflow.
The vane must not rub the inside of the TEE or bind in any way. The stem should move freely when operated by hand.
The device can also be used in copper or plastic pipe installations with the proper adapters so that the specified TEE fitting may be installed on the pipe
run.
Note: Do not leave cover off for an extended period of time.
Do not trim the paddle. Failure to follow these instructions may prevent the device from operating and will void the warranty. Do not obstruct or otherwise
prevent the trip stem of the flow switch from moving when water flows as this could damage the flow switch and prevent an alarm. If an alarm is not
desired, a Flowswitch Bypass Switch should be used (refer to Potter data sheet 5401554), or a qualified technician should disable the alarm system.
Fig 1
OPTIONAL COVER TAMPER SWITCH
MOUNT SO ARROW ON
BUSHING POINTS IN
DIRECTION OF WATERFLOW
1" NPT THREADED
FITTING ON ALL SIZES
RUN OF THE TEE MAY BE
THREADED OR SWEAT PIPE
DIRECTION OF
WATERFLOW
Potter Electric Signal Company, LLC
Retard Adjustment
The delay can be adjusted by rotating the retard adjustment knob from
0 to the max setting (60-90 seconds). The time delay should be set at
the minimum required to prevent false alarms.
Paddle Selection
Fig 2
There are 12 paddles furnished with each unit. One for each size of
threaded, sweat or plastic TEE as described in Fig. 3. These paddles
have raised lettering that shows the pipe size and type of TEE that
they are to be used with. The proper paddle must be used. The paddle
must be properly attached (see drawing) and the screw that holds the
paddle must be securely tightened. Do not trim the paddle.
Note:
for corresponding size riser.
DWG# 802-30A
• St. Louis, MO •
•
5401207 - REV J 11/21
Vane Type Waterflow Alarm
Switch With Retard
DIRECTION OF
WATER FLOW
DWG# 737-31
For National Fire Products risers, use paddle marked SWEAT
Phone: 800-325-3936
VSR-S
• www.pottersignal.com
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