Pittway System Sensor PIBV2 User manual

N770-03-00 1 I56-394-06
PIBV2 Post Indicator and
Butterfly Valve Supervisory Switch
INSTALLATION AND MAINTENANCE INSTRUCTIONS
A Division of Pittway
3825 Ohio Avenue, St. Charles, Illinois 60174
1-800-SENSOR2, FAX: [phone]
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 oth-
ers 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.
CAUTION
Do NOT use this switch in explosive or potentially
explosive atmospheres.
Do NOT leave unused wires exposed.
Before installing any supervisory switches in sprinkler sys-
tems, be thoroughly familiar with:
NFPA 72: Installation, Maintenance and Use of Local
Protective Signalling Systems
NFPA 13: Installation of Sprinkler Systems, specifi
cally, Section 3.17
NFPA 25: Inspection, Testing and Maintenance of
Sprinkler Systems, specifically Chapters 4
and 5
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
Specifications
Contact Ratings: 10A @ 125/250 VAC
2.5 A @ 24 VDC
Dimensions: 81/4H X 31/2W X 31/4" D
Maximum Stem Extension: 2 5/32"
Operating Temperature Range: 32°F - 120°F (0°C - 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.
A78-1587-00
Figure 1:
Cover
Tamper screws
Tamper proof
wrench
(P/N WFDW)
Actuating cam
Actuating lever
set screw
Nipple set screws
Threaded nipple
Base housing
Actuating lever
Retaining nut
Switch Enclosure
Mounting screws
Spring
Hex wrench
(P/N HEXW)
4-1/4" H
(Assembled)
3-1/4" D
3-1/2" W
pipe nipple which is locked in place with two set screws.
These models also include an adjustable length actuat-
ing lever which eliminates any need for alteration of the
length of the lever. A hex key is furnished for both of
these features.
3. The cover is secured with two tamper resistant screws
which require a special key to remove. One key is in-
cluded with each supervisory switch. Replacement and
additional keys are available (Part No. WFDW).
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N770-03-00 2 I56-394-06
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 re-
leases the actuating lever on the PIBV2. In a falling flag
installation, the PIBV2 mounts above the target assem-
bly (Figure 2B). Closing the valve lowers the target as-
sembly and releases the actuating lever on the PIBV2.
The PIBV2 is set for falling flag installation. If a ris-
ing flag operation is desired, it is necessary to re-
verse the action of the switch (See Section 4).
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 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 as-
sembly can be reinstalled with its original adjustment.
4. (a)In a falling flag installation (flag lowers as valve is
closed), measure the distance from the bottom of the
head to the upper surface of the target that will con-
tact 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 con-
tact the actuating lever. Subtract 3/32" to this measure-
ment and mark the outside of the housing at that
Figures 2A and 2B:
HEAD TARGET
A78-1629-00 A78-1630-00
Rising Flag Falling flag
location. Drill with a 23/32" drill bit and tap a 1/2" NPT
thread.
5. Replace the head and target assembly.
6. Screw the locknut onto the threaded nipple which is
supplied with the PIBV2.
7. Screw the nipple hand tight into the 1/2" hole in the
valve and tighten the locknut against the housing to se-
cure the nipple in position.
8. Insert a probe into the hole through the nipple to mea-
sure the distance from the open end of the nipple to the
to the desired position on the target assembly. Subtract
5/8" from the distance and set the length of the actuat-
ing lever of the PIBV2 from the end of the enclosure to
this distance. Tighten the set screw which holds the ac-
tuating lever.
9. Close the valve 3 to 4 revolutions.
10. 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.
11. 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 de-
press the top of the actuating cam to stretch the actuat-
ing spring further. There should be some additional
movement available. If no movement is available, dam-
age 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.)
12. After checking the fully open position to ensure ad-
equate 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.
13. If the PIBV2 does not change states within 1/5of 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.)
Section 2
Installation Instructions For Butterfly Valves
(See Figure 3)
1. Remove the 1/2" NPT plug from the gear housing.
2. Loosen 2 set screws that hold the nipple on the PIBV2
and remove the nipple.
3. Screw the locknut onto the nipple.
4. Screw the nipple into the 1/2" NPT hole and hand
tighten. Tighten the locknut firmly to the housing to se-
cure 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
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N770-03-00 3 I56-394-06
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
screws to secure the assembly.
7. Slide the actuating arm into the valve until it bottoms on
the flag, but do not tighten set screw.
8. Open the valve to the full open position and tighten set
screw to hold actuating arm in position. (Actuating arm
length will adjust slightly as valve is opened.) Check to
ensure that in the full open position the actuating arm is
not resting on the nipple. Do this by depressing the actu-
ating 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 1/5of the total travel range of the valve.
Section 3
General Installation Instructions
1. Installation Positions
Figure 4:
The following are examples of acceptable mounting
positions:
Actuator Vertical (Down) Actuator Horizontal
The following mounting position is not acceptable:
T
O
O
P
E
N
CLOSE
CLOSE
Figure 3:
Conduit Entry
Socket Head
Screw
Spring
in final
position
Actuating Lever
Switch Enclosure
Spring
in initial
position
Slide in
this direction
Figure 5:
A78-1631-00
Actuator Vertical (Pointing Up)
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.
Section 4
Reversing The Action Of PIBV2
1. Loosen the 3 phillips 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 actuat-
ing cam so that it seats on the opposite side of the actua-
tor (see Figure 5).
A78-1633-00
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N770-03-00 4 I56-394-06
©System Sensor 1999
Three-Year Limited Warranty
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, representa-
tive, dealer, or employee of the Company has the authority to increase or
alter the obligations or limitations of this Warranty. The Company’s obli-
gation 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 pe-
riod commencing with the date of manufacture. After phoning System
Sensor’s toll free number 800-SENSOR2 (736-7672) for a Return Authori-
zation number, send defective units postage prepaid to: System Sensor,
Repair 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 negli-
gence or fault. Some states do not allow the exclusion or limitation of inci-
dental 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.
A78-1639-00
Figure 6:
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.
2. Supervisory switch alarm devices have a normal service life
of 10-15 years.
WARNING
The Limitations of Supervisory Switch Alarm Devices
3. Supervisory switches are not a substitute for insurance.
Building owners should always insure property and lives
being protected.
NOTE: Common and B connections will
close when valve moves 1/5 of its
total travel distance.
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
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