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PAGE 4 OF 6
AUTO TEST VSR (VSR-AT)
VANE TYPE WATERFLOW ALARM SWITCH WITH
ELECTRONIC RETARD AND AUTO TEST FEATURE
MFG. #5401239 - REV B
3/14
DWG1239-3
C NO C NO GND LED
SWITCH
+ -
ALARM
ALARM
24 VDC PWR
Notes:
1. The model VSR-AT has two sets of alarm contacts:
•
The connection to the waterflow zone of the fire panel involves 3
terminals on the VSR-AT. C and NO. Connect the two wires
from the waterflow zone of the fire panel to the C and NO terminals
with the End of Line Resistor of the fire panel being connected
across the C and other terminal as shown on the drawing. The
NO and resistor terminal are internally connected by a normally
energized relay. A loss of power or failed AutoTest causes the relay
to drop out and initiate a trouble on the fire panel.
• The second connection may be used for a local audible or visual
annunciator.
2. For supervised circuits, see “Switch Terminal Connections” drawing
and warning note (Fig. 3).
Fig. 6
Typical Electrical Connections
Do not connect power directly to these terminals.
Aux. power of
fire panel or
other Listed 24 VDC supply.
24 VDC @ 120 mA.
Waterflow
zone on
fire panel
(See Note 1)
EOLR
or next
device
S1
Load
(Black)
Line
(Black)
Neutral
(White)
From power source
suitable for bell,
120 VAC connection shown
(See Note 1)
Bell
Orange
ATC-1
Mounts to standard
single gang, handy,
or switch box 4"L X
2 1/8"W X 1 7/8"D
such as RACO 660
or equivilent.
Box not included.
Black
Blue
The ATC consists of a momentary push button switch, a key switch
to enable/disable the push button and an LED. Turning the keyswitch
to Test will enable the push button switch. Momentarily pressing the
push button switch will initiate the Auto Test feature. The LED will
flash once per second during the test while the retard time is being
tested. After the retard time expires, the VSR-AT is put through a
simulated waterflow test. If the test was successful, the LED will light
steady for approximately 2 seconds and both sets of switch contacts
on the VSR-AT will activate for approximately 2 seconds. After the
LED goes out, the key switch can be returned to Standby and the fire
alarm panel reset. If the test was unsuccessful, the LED will flash 4
times per second, the switch contacts of the VSR-AT will not activate
and the VSR-AT will initiate a trouble on the fire alarm panel by
opening the circuit between the NO terminal and the End Of Line
Resistor terminal.
D
C
B
A
A
B
C
D
POTTER ELECTRIC SIGNAL CO.
CAD GENERATED DRAWING,
DO NOT MANUALLY UPDATE
SCALE
SIZE DWG. NO.
B
SHEET
2 OF 2
DATE
APPROVALS
DRAWN
CHECKED
TOLERANCES UNLESS SPECIFIED
DECIMALS ANGLES
.XXX = ±.005
XXXXXX
1
2
3
4
5
6
7
8
8
7
6
5
4
3
2
1
2/4/2014
XXXXX
2/4/2014
.XX = ±.015
±1°
VENDOR CERTIFIES ALL PARTS SUPPLIED FROM THIS DRAWING HAVE BEEN PRODUCED TO
ITS SPECIFICATIONS AND VENDOR WILL BE RESPONSIBLE FOR ANY REWORK COST WHERE
SPECIFICATIONS HAVE NOT BEEN MET.
VENDOR CERTIFICATION
DATA CONTAINED HEREIN SHALL NOT BE USED, DUPLICATED OR DISCLOSED IN WHOLE
OR PART OUTSIDE POTTER ELECTRIC, INC. WITHOUT WRITTEN PERMISSION OF SAME.
PROPRIETARY DATA
TITLE
1:4
ATC-4
Mounts to standard
two gang, handy
box 4"L X 2 4"W
X 2 1/8"D such
as RACO 683 or
equivilent.
Box not included.
