Safe Signal PIBV2A User manual

PIBV2A Post Indicator and
Butterfly Valve Supervisory Switch
INSTALLATION AND MAINTENANCE INSTRUCTIONS
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 Safe Signal 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.
All supervisory switch installations must comply with local
codes and ordinances and the requirements of the author-
ity having jurisdiction. Additional information is avail-
able in National Fire Protection Association standards NFPA
13, 13D, 13R, 71, and 72. The connection of supervisory
switches to alarm control units is governed by CAN/ULC-
S524-M91, standard for the Installation of Fire Alarm Systems.
General Installation Considerations
1. Model PIBV2A 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).
Specifications
Contact Ratings: 10A @ 125/250 VAC
2.5 A @ 24 VDC
Cover Tamper Switch Ratings: 5 A @ 125/250 VAC; 2.5 A @ 24 VDC
Dimensions: 81⁄4˝ H X 31⁄2˝ W X 31⁄4˝ D
Maximum Stem Extension: 35⁄32˝
Operating Temperature Range: 0°C - 49°C (32°F - 120°F)
Shipping Weight 2 lbs.
Enclosure Rating: NEMA Type 3R when mounted with the actuator vertical (cover on top) as tested by
Underwriters Laboratories, Inc. (PIBV2A is ULC approved)
W0224-00
Figure 1:
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
2. Model PIBV2A is equipped with a removable 1⁄2˝ NPT pipe
nipple which is locked in place with two set screws. 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 special key to remove. One key is included with
each supervisory switch. Replacement and additional keys are
available (Part No. WFDW).
I56-2481-C
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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 PIBV2A
mounts below the target assembly, as shown in Figure 2A.
Closing the valve raises the target assembly and releases the
actuating lever on the PIBV2A. In a falling flag installation,
the PIBV2A mounts above the target assembly (Figure 2B).
Closing the valve lowers the target assembly and releases the
actuating lever on the PIBV2A.
The PIBV2A 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).
2. If the post indicator valve is predrilled with 1⁄2˝ NPT mount-
ing hole, remove the plug and go to step 6. If the post indi-
cator 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 assembly can be rein-
stalled 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 contact the actuating
lever of the PIBV2A. 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 out-
side 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. Screw the locknut onto the threaded nipple which is sup-
plied with the PIBV2A.
7. Screw the nipple hand tight into the 1⁄2˝ hole in the valve and
Figures 2A and 2B:
HEAD TARGET
Rising Flag Falling flag
tighten the locknut against the housing to secure the nipple
in position.
8. 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 dis-
tance and set the length of the actuating lever of the PIBV2A
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 break-
away point. Repeat step 8 to re-install actuator lever. Refer to
Figure 7.
9. Close the valve 3 to 4 revolutions.
10. Install the PIBV2A onto the nipple and orient the conduit
entry down (See Figure 4). Apply pressure to the PIBV2A
and lock the set screws to secure the nipple to the PIBV2A.
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 depress the top of the
actuating cam to stretch the actuating spring further. There
should be some additional movement available. If no move-
ment is available, damage may occur to the PIBV2A actua-
tor 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 adequate
clearance, close the valve slowly until the PIBV2A contacts
trip. The switches must trip within 1⁄5of the full travel dis-
tance of the valve.
13. If the PIBV2A 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 PIBV2A 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 secure the nipple.
5. Open the valve fully and close the valve approximately 3 rev-
olutions, noting which direction the target moves.
6. Retract the actuating arm and install PIBV2A onto the nipple,
orienting the PIBV2A 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 PIBV2A 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 the screw which holds the actuating
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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 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
PIBV2A 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 revolu-
tions 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
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:
W0225-00
The following mounting position is not acceptable:
Actuator Vertical (Pointing Up)
2. Ground Screw — A ground screw is provided with all super-
visory 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 PIBV2A
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 tight-
en 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 seats on the opposite side of the actuator (see Figure
5).
W0214-00
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Top View
Switch 1
COM
COM
ABBA Switch 2
BB
COM COM
BB
COM COM
Typical Fire Alarm Control Panel Connection
B
COM
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.
Wire Code:
Waterflow or Supervisory Switch:
Com to B = Open Circuit
Com to A = Closed Circuit
(Non Alarm
Condition)
Cover Tamper Switch:
Black / Blue: Open
Black / Red: Closed (Cover Off)
AAAA
NC
NO
COM
Red NC
NO
COM
Red
BlackBlueBlack
end-of-line
resistor
to nonsilenceable
initiating zone
of listed FACP
Wire
Nut
Wire
Nut
NC
NO
COM
Blue
Wire
Nut
A
Cover
Tamper
Switch
to power
source
compatible
with bell
local
bell
Black
Red
NOTE:
Local bell will activate
when cover is removed.
Blue
W0156-00
Figure 6:
1. Alarms generated by the activation of the actuating lever may not
be received by a central station if telephone or other communica-
tion 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 1/5of its total
travel distance.
Break
here
W0321-00
Figure 7:
Actuating Arm
Breakaway Feature
THREE-YEAR LIMITED WARRANTY
SAFE SIGNAL warrants that the equipment herein shall conform to said descriptions as to all af-
firmation of fact and shall be free from defects of manufacture, labeling, and packaging for a pe-
riod of three (3) years from the invoice date to the original purchaser, provided that representative
samples are returned to SAFE SIGNAL for inspection. Upon a determination by SAFE SIGNAL
that a product is not as warranted, SAFE SIGNAL shall, at its exclusive option, replace or repair
said defective product or parts thereof at its own expense except that Purchaser shall pay all
shipping, insurance, and similar charges incurred in connection with the replacement of the
defective product or parts thereof. This Warranty is void in the case of abuse, misuse, abnormal
usage, faulty installation, or repair by unauthorized persons, or if for any other reason SAFE
SIGNAL determines that said product is not operating properly as a result of causes other than
defective manufacture, labeling, or packaging.
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