INSTALLATION AND MAINTENANCE INSTRUCTIONS
COVER
TAMPER
SCREWS
TAMPER
PROOF
WRENCH
(P/N WFDW)
ACTUATING
CAM
ACTUATING
LEVER SCREW
NIPPLE SET SCREW
THREADED
NIPPLE
BASE HOUSING
ACTUATING
LEVER
RETAINING NUT
SWITCH ENCLOSURE
MOUNTING SCREWS
SPRING
HEX
WRENCH
(P/N HEXW)
41/4˝ H
(ASSEMBLED)
31/4˝ D
31/2˝ W
I56-0394-010R
PIBV2 Post Indicator and
Butterfly Valve Supervisory Switch
3825 Ohio Avenue, St. Charles, Illinois 60174
1.800.SENSOR2; Fax: 630.377.6495
www.systemsensor.com
SPECIFICATIONS
Contact Ratings: 10A @ 125/250 VAC ; 2.5 A @ 24 VDC
Dimensions: 41⁄4˝ H × 31⁄2˝ W × 31⁄4˝ D
Maximum Stem Extension: 35⁄32˝ (8.0 cm)
Operating Temperature Range: 32°F to 120°F (0°C to 49°C)
Shipping Weight 2 lbs.
Enclosure Rating: NEMA Type 3R when mounted with the actuator vertical (cover on top) as tested by Underwriters Laboratories, Inc.
IP54
U.S. Patent Number: 5,213,205
IMPORTANT
Please Read Carefully and Save
This instruction manual contains important information on the installation
and operation of supervisory switches. Purchasers who install supervisory
switches for use by others must leave this manual or a copy of it with the
user. These instructions apply to System Sensor switches for post indicator
and butterfly type valves. Read all instructions carefully before beginning
installation.
GENERAL INSTALLATION CONSIDERATIONS
1. Model PIBV2 is designed for installation in a 1⁄2˝ NPT tapped hole and
located so that the actuating lever of the switch engages the target or flag
of the valve . The switch actuating lever is spring loaded against the flag
or target of the valve and is released when the valve moves toward the
closed position from the fully open position. The switch is factory set to
indicate an alarm condition when the target and lever move in the direction toward the conduit entry hole when the valve closes, but can be
reversed if the installation demands (refer to Section 4).
2. Model PIBV2 is equipped with a removable 1⁄2˝ NPT pipe nipple which
Do NOT use this switch in explosive or potentially explosive atmospheres.
Do NOT leave unused wires exposed.
is locked in place with one set screw. A hex wrench is provided for this
feature. The PIBV2 also includes an adjustable length actuating lever.
3. The cover is secured with two tamper resistant screws which require a
Before installing any supervisory switches in sprinkler systems, be thoroughly
familiar with:
NFPA 72: Installation, Maintenance and Use of Local Protective
Signalling Systems
NFPA 13: Installation of Sprinkler Systems, specifically Section 3.17
NFPA 25: Inspection, Testing and Maintenance of Sprinkler Systems, specifi-
cally Chapters 4 and 5
FIGURE 1:
special key to remove. One key is included with each supervisory switch.
Replacement and additional keys are available (Part No. WFDW).
SECTION 1
INSTALLATION INSTRUCTIONS FOR POST INDICATOR VALVES
1. There are two types of post indicator valves – rising flag and falling flag.
In a rising flag installation, the PIBV2 mounts below the target assembly,
as shown in Figure 2A. Closing the valve raises the target assembly and
releases the actuating lever on the PIBV2. In a falling flag installation, the
PIBV2 mounts above the target assembly (Figure 2B). Closing the valve
lowers the target assembly and releases the actuating lever on the PIBV2.
The PIBV2 is set for falling flag installation. If a rising flag operation is
desired, it is necessary to reverse the action of the switch (See Section 4).
FIGURES 2A. RISING FLAG: FIGURE 2B. FALLING FLAG:
1. Alarms generated by the activation of the actuating lever may not be received by a
central station if telephone or other communication lines to the alarm device are out
of service, disabled, or open.
System Sensor warrants its enclosed supervisory switch to be free from defects in materials and workmanship under normal use and service for a period of three years from date
of manufacture. System Sensor makes no other express warranty for this supervisory
switch. No agent, representative, dealer, or employee of the Company has the authority to
increase or alter the obligations or limitations of this Warranty. The Company’s obligation
of this Warranty shall be limited to the repair or replacement of any part of the supervisory switch which is found to be defective in materials or workmanship under normal
use and service during the three year period commencing with the date of manufacture.
After phoning System Sensor’s toll free number 800-SENSOR2 (736-7672) for a Return
Authorization number, send defective units postage prepaid to: System Sensor, Returns
N770-03-00 4 I56-0394-010R
©2008 System Sensor
THE LIMITATIONS OF SUPERVISORY SWITCH ALARM DEVICES
THREE-YEAR LIMITED WARRANTY
2. Supervisory switch alarm devices have a normal service life of 10-15 years.
3. Supervisory switches are not a substitute for insurance. Building owners should
always insure property and lives being protected.
Department, RA #__________, 3825 Ohio Avenue, St. Charles, IL 60174. Please include a
note describing the malfunction and suspected cause of failure. The Company shall not
be obligated to repair or replace units which are found to be defective because of damage,
unreasonable use, modifications, or alterations occurring after the date of manufacture.
In no case shall the Company be liable for any consequential or incidental damages for
breach of this or any other Warranty, expressed or implied whatsoever, even if the loss
or damage is caused by the Company’s negligence or fault. Some states do not allow the
exclusion or limitation of incidental or consequential damages, so the above limitation
or exclusion may not apply to you. This Warranty gives you specific legal rights, and you
may also have other rights which vary from state to state.
W0213-00
2. If the post indicator valve is predrilled with 1⁄2˝ NPT mounting hole,
remove the plug and go to step 6. If the post indicator valve is NOT
W0224-00
equipped with a 1⁄2˝ NPT mounting hole, it will be necessary to drill and
tap the hole.
3. Position the valve in the fully open position (“OPEN” should appear in
the window) and remove the head and target assembly. In doing so, ensure that the assembly can be reinstalled with its original adjustment.
N770-03-00 1 I56-0394-010R
CONDUIT
ENTRY
SOCKET
HEAD
SCREW
SPRING
IN FINAL
POSITION
ACTUATING LEVER
SWITCH
ENCLOSURE
SPRING
IN INITIAL
POSITION
SLIDE IN
THIS DIRECTION
4. (a) In a falling flag installation (flag lowers as valve is closed), measure
ACTUATOR VERTICAL (DOWN) ACTUATOR HORIZONTAL
ACTUATOR VERTICAL (POINTING UP)
EXAMPLES OF ACCEPTABLE MOUNTING POSITIONS:
EXAMPLE OF MOUNTING POSITIONS NOT ACCEPTABLE:
TOP VIEW
SWITCH 1
COM
COM
ABBA
SWITCH 2
CONTACT RATINGS
125/250 VAC
24 VDC
10 AMPS
2.5 AMPS
SUP. SWITCH
BB
COM COM
SUP. SWITCH
BB
COM COM
TYPICAL FACP CONNECTION
TO NONSILENCEABLE
INITIATING ZONE
OF LISTED FACP
END-OF-LINE
RESISTOR
B
COM
TO POWER
SOURCE
COMPATIBLE
WITH BELL
LOCAL
BELL
TYPICAL LOCAL BELL CONNECTION
BREAK WIRE AS SHOWN FOR SUPERVISION
OF CONNECTION. DO NOT ALLOW STRIPPED
WIRE LEADS TO EXTEND BEYOND SWITCH
HOUSING. DO NOT LOOP WIRES.
STRIP GAUGE
NOTE: COMMON AND B CONNECTIONS
WILL CLOSE WHEN VALVE MOVES
1
/5 OF
ITS TOTAL TRAVEL DISTANCE.
the distance from the bottom of the head to the upper surface of the
target that will contact the actuating lever of the PIBV2. Add 3⁄32˝ to this
measurement and mark the outside of the housing at that location. Drill
with a 23⁄32˝ drill bit and tap a 1⁄2˝ NPT thread.
(b) In a rising flag installation (flag rises as valve is closed), measure the
distance from the bottom of the head to the lower surface of the target
that will contact the actuating lever. Subtract 3⁄32˝ to this measurement
and mark the outside of the housing at that location. Drill with a 23⁄32˝
drill bit and tap a 1⁄2˝ NPT thread.
5. Replace the head and target assembly.
6. Loosen the set screw that holds the nipple on the PIBV2 and remove
the nipple.
7. Screw the locknut onto the threaded nipple which is supplied with the PIBV2.
8. Screw the nipple hand tight into the 1⁄2˝ hole in the valve and tighten the
locknut against the housing to secure the nipple in position.
9. Insert a probe into the hole through the nipple to measure the distance
from the open end of the nipple to the desired position on the target assembly. Subtract 5⁄8˝ from the distance and set the length of the actuating
lever of the PIBV2 from the end of the enclosure to this distance. Tighten
the screw which holds the actuating lever.
NOTE: Place cover over PIBV2 to ensure that actuating lever does not
interfere with cover. If actuating lever interferes with cover, remove
lever and break off additional length at breakaway point. Repeat step
8 to re-install actuator lever. Refer to Figure 7.
10. Close the valve 3 to 4 revolutions.
11. Install the PIBV2 onto the nipple and orient the conduit entry down (See
Figure 4). Apply pressure to the PIBV2 and lock the set screws to secure
the nipple to the PIBV2.
12. Slowly open the valve to its fully open position. The switch should trip
as the valve opens, but not force the actuating lever against the nipple
when fully open. To check for this condition, open the valve fully and
depress the top of the actuating cam to stretch the actuating spring further. There should be some additional movement available. If no movement is available, damage may occur to the PIBV2 actuator lever. It will
be necessary to adjust the flag location by removing the head and turning the handle while the valve stem is disengaged (refer to the valve
manufacturer.)
13. After checking the fully open position to ensure adequate clearance,
close the valve slowly until the PIBV2 contacts trip. The switches must
trip within 1⁄5 of the full travel distance of the valve.
14. If the PIBV2 does not change states within 1⁄5 of the length of travel, it
may be necessary to adjust the flag up or down by removing the head
and turning the handle (refer to the valve manufacturer.)
INSTALLATION INSTRUCTIONS FOR BUTTERFLY VALVES (SEE FIGURE 3)
1. Remove the 1⁄2˝ NPT plug from the valve housing.
SECTION 2
2. Loosen the set screw that holds the nipple on the PIBV2 and remove
the nipple.
3. Screw the locknut onto the threaded nipple which is supplied with the
PIBV2.
4. Screw the nipple into the 1⁄2˝ NPT hole and hand tighten. Tighten the
locknut firmly to the housing to secure the nipple.
5. Open the valve fully and close the valve approximately 3 revolutions,
noting which direction the target moves.
6. Retract the actuating arm and install PIBV2 onto the nipple, orienting the
PIBV2 to trip the switch as the valve closes. If the conduit entry is on the
wrong side, it will be necessary to reverse the action of the switch (see
Section 4). Apply pressure to PIBV2 and tighten set screw to secure the
assembly.
7. Slide the actuating arm into the valve until it bottoms on the flag, but do
not tighten the screw which holds the actuating lever.
NOTE: Place cover over PIBV2 to ensure that actuating lever does not
interfere with cover. If actuating lever interferes with cover, remove lever
and break off additional length at breakaway point. Refer to Figure 7.
8. Open the valve to the full open position and tighten screw to hold actuating arm in position. (Actuating arm length will adjust slightly as valve is
N770-03-00 2 I56-0394-010R
opened.) Check to ensure that in the full open position the actuating arm
is not resting on the nipple. Do this by depressing the actuating cam to
further stretch the spring, ensuring that more travel is available when the
valve is open. If there is no travel, damage may occur to PIBV2 actuating
arm. Some slight alteration of the valve stop setting may be necessary to
ensure that no damage occurs.
9. Carefully close valve and note the number of handle revolutions until the
switch trips. The switch must trip within 1⁄5 of the total travel range of
the valve.
FIGURE 3:
SECTION 3
GENERAL INSTALLATION INSTRUCTIONS
1. Installation Positions
FIGURE 4:
2. Ground Screw — A ground screw is provided with all supervisory switch
models. When grounding is required, clamp wire with the screw in hole
located near conduit entrance.
3. Wiring — See Figure 6, Page 4.
W0214-00
W0381-00
SECTION 4
REVERSING THE ACTION OF PIBV2
1. Loosen the three 3/16˝ hex (socket head) screws on the top of the black
switch enclosure so that the switch enclosure is loose and free to move
(see Figure 5).
2. Slide the switch enclosure away from the conduit entry toward the actuating pivot arm as far as possible and tighten the 3 screws to secure the
enclosure. (Ensure that switch enclosure remains oriented away from the
conduit entry as screws are tightened.)
3. Grasp the spring at the center and lift it over the actuating cam so that it
WARNING: High Voltage. Electrocution Hazard. Do not handle live AC wiring
or work on a device to which AC power is applied. Doing so may result in
severe injury or death.
When utilizing switches at voltages greater than 74 VDC or 49 VAC
, means to provide all-pole disocnnection must be incorporated in the
field wiring, such as a circuit breaker.
FIGURE 7: ACTUATING ARM BREAKAWAY FEATURE:
seats on the opposite side of the actuator (see Figure 5).
NOTE: Lever actuator may need to be adjusted to allow spring to be moved.
FIGURE 5:
W0321-00
W0225-00
FIGURE 6:
W0223-00
N770-03-00 3 I56-0394-010R