PRINTED IN USA
MFG. #5401146 - REV M
11/15
PAGE 2 OF 4
VSR
VANE TYPE WATERFLOW
ALARM SWITCH WITH RETARD
Installation (
see Fig. 1)
These devices may be mounted on horizontal or vertical pipe. On horizontal pipe they shall be installed on the top side of the pipe where they
will be accessible. The device should not be installed within 6" (15 cm) of a fitting which changes the direction of the waterflow or within 24"
(60 cm) of a valve or drain.
NOTE
:
Do not leave cover off for an extended period of time.
Drain the system and drill a hole in the pipe using a hole saw in a slow speed drill (see Fig. 1). Clean the inside pipe of all growth or other
material for a distance equal to the pipe diameter on either side of the hole. Roll the vane so that it may be inserted into the hole; do not bend
or crease it. Insert the vane so that the arrow on the saddle points in the direction of the waterflow. Take care not to damage the non-corrosive
bushing in the saddle. The bushing should fit inside the hole in the pipe. Install the saddle strap and tighten nuts alternately to required torque
(see the chart in Fig. 1). The vane must not rub the inside of the pipe or bind in any way.
ADAPTER
USE (2) 5180162 ADAPTERS AS SHOWN ABOVE
DN50 ONLY
ADAPTER
50mm
20mm ±2mm MAX.
DWG# 1146-1F
Fig. 1
NOTE
: For copper or plastic pipe use Model VSR-CF.
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
(Flowing water activates
device in one direction only.)
DO NOT LEAVE COVER OFF FOR
AN EXTENDED PERIOD OF TIME
TIGHTEN NUTS
ALTERNATELY
MOUNT ON PIPE SO
ARROW ON SADDLE
POINTS IN DIRECTION
OF WATERFLOW
ROLL PADDLE IN
OPPOSITE DIRECTION
OF WATERFLOW
DIRECTION OF
WATERFLOW
Hole must be drilled perpendicular to the pipe and vertically centered.
Refer to the Compatible Pipe/Installation Requirements chart for size.
Correct
Incorrect
Compatible Pipe/ Installation Requirements
Model
Nominal Pipe
Size
Nominal Pipe
O.D.
Pipe Wall Thickness
Hole Size
U-Bolt Nuts
Torque
Lightwall
Schedule 10 (UL) Schedule 40 (UL)
BS-1387 (LPC)
DN (VDS)
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
inch
mm
ft-lb n-m
VSR-2
2
DN50
2.375
60.3
.065
1.651
0.109
2.77
0.154
3.91
0.142
3.6
0.091
2.3
1.25 + .125/-
.062
33.0 ± 2.0
20
27
VSR-2 1/2
2.5
-
2.875
73.0
.084
2.134
0.120
3.05
0.203
5.16
-
-
-
-
VSR-2 1/2
-
DN65
3.000
76.1
-
-
-
-
-
-
0.142
3.6
0.102
2.6
VSR-3
3
DN80
3.500
88.9
.083
2.108
0.120
3.05
0.216
5.49
0.157
4.0
0.114
2.9
2.00 ± .125
50.8 ± 2.0
VSR-3 1/2
3.5
-
4.000
101.6
-
-
0.120
3.05
0.226
5.74
-
-
-
-
VSR-4
4
DN100
4.500 114.3 .084
2.134
0.120
3.05
0.237
6.02
0.177
4.5
0.126
3.2
VSR-5
5
-
5.563
141.3
-
-
0.134
3.40
0.258
6.55
-
-
-
-
VSR-6
6
DN150
6.625 168.3
.115
2.921
0.134
3.40
0.280
7.11
0.197
5.0
0.157
4.0
VSR-8
8
DN200
8.625 219.1
-
-
0.148
3.76
0.322
8.18
0.248
6.3
0.177
4.5
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 qualified
technician should disable the alarm system.
