Pittway System sensor pibvexp User manual

D770-28-00 1 I56-1430-000

PIBVEXP Explosion Proof

Post Indicator and Butterfly Valve Switch

INSTALLATION AND MAINTENANCE INSTRUCTIONS

A Division of Pittway

3825 Ohio Avenue, St. Charles, Illinois 60174

1-800-SENSOR2, FAX: 630-377-6495

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. Follow only those instructions

that apply to the model being installed.

CAUTION

To prevent ignition of hazardous atmospheres, disconnect

supply circuit before opening. Keep assembly tightly closed

when in operation. Do NOT leave unused wires exposed.

All supervisory switch installations must comply with local

codes and ordinances and the requirements of the authority

having jurisdiction. Additional information is available in

National Fire Protection Association standards NFPA 13,

13D, 13R, 71, and 72.

Specifications

Contact Ratings: One SPDT (Form C) Switch

15 A @ 125/250/480 VAC; 1/8 HP @ 125 VAC, 1/4 HP @ 250 VAC

1/2 A @ 125 VDC; 1/4 A @ 250 VDC

Dimensions: 3.75"L X 3.25"D X 4.5"H

Operating Temperature Range: -40°F - 160°F (-40°C – 71°C)

Maximum Stem Extension: 2.1875"

Shipping Weight: 1-3/4 lb.

Enclosure Rating: UL Listed explosion proof switch enclosure for use in hazardous locations.

Class I, Groups C and D; Class II, Groups E. F and G

General Information for Post Indicator Valves and

Butterfly Valves

1. Model PIBVEXP is designed for installation in a

" 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.

2. Model PIBVEXP is equipped with a removable

" NPT

pipe nipple which is locked in place with two set screws.

A hex wrench is provided for this feature. These models

also include an adjustable length actuating lever which

eliminates any need for alteration of the length of the lever.

D770-28-00 4 I56-1430-000

©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.

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.

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D770-28-00 2 I56-1430-000

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

PIBVEXP mounts below the target assembly, as shown

in Figure 1A. Closing the valve raises the target assem-

bly and releases the actuating lever on the PIBV1EXP.

In a falling flag installation, the PIBVEXP mounts

above the target assembly (Figure 1B). Closing the

valve lowers the target assembly and releases the actu-

ating lever on the PIBVEXP.

The PIBVEXP will work for either application. To

prevent binding on the actuating lever the unit must

be oriented with the conduit entry pointing down-

ward for a rising flag application and pointing up-

ward for a falling flag application. An improper

installation can cause damage to the PIBVEXP de-

vice.

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 PIBVEXP. Add 3/32" to

this measurement and mark the outside of the hous-

ing 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

location. Drill with a 23/32" drill bit and tap a 1/2" NPT

thread.

Figures 1A and 1B:

Rising Flag Falling flag

5. Replace the head and target assembly.

6. Screw the locknut onto the threaded nipple which is

supplied with the PIBVEXP.

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 PIBVEXP from the end of the enclosure

to this distance. Tighten the set screw which holds the

actuating lever.

9. Close the valve 3 to 4 revolutions.

10. Install the PIBVEXP onto the nipple and orient the con-

duit entry per Section 1. Apply pressure to the

PIBVEXP and lock the set screws to secure the nipple to

the PIBVEXP.

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 PIBVEXP 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

PIBVEXP contacts trip. The switches must trip within

1/5of the full travel distance of the valve.

13. If the PIBVEXP 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.)

14. Wire the switch as shown in Fig. 3.

Section 2

Installation Instructions For Butterfly Valves

(See Figure 2)

1. Remove the 1/2" NPT plug from the gear housing.

2. Loosen 2 set screws that hold the nipple on the

PIBV2EXP 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 PIBVEXP onto the

nipple, orienting the PIBVEXP to trip the switch as the

valve closes. To prevent binding on the actuating lever,

D770-28-00 3 I56-1430-000

the unit must be oriented so the flag falls away from the

actuating lever when the valve is closed. Apply pressure

to PIBVEXP 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 lever screw.

8. Open the valve to the full open position and tighten the

lever screw to hold actuating arm in position. (Actuat-

ing arm length will adjust slightly as valve is opened.)

Check to ensure that in the full open position the actu-

ating arm is not resting on the nipple.

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.

10. Wire the switch as shown in Fig. 3.

Figure 2:

Figure 3:

SUP. SWITCH SUP. SWITCH

TO NONSILENCEABLE

INITIATING ZONE OF

LISTED FACP

END OF LINE

RESISTOR

TYPICAL FACP CONNECTION

TO POWER SOURCE

COMPATIBLE WITH BELL

TYPICAL LOCAL BELL CONNECTION

LOCAL

BELL

BREAK WIRE AS SHOWN FOR SUPERVISION

OF CONNECTION. DO NOT ALLOW STRIPPED

WIRE LEADS TO EXTEND BEYOND SWITCH

HOUSING. DO NOT LOOP WIRES.

A78-1633-01

Technical Manuals Online! - http://www.tech-man.com

D770-28-00 2 I56-1430-000

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

PIBVEXP mounts below the target assembly, as shown

in Figure 1A. Closing the valve raises the target assem-

bly and releases the actuating lever on the PIBV1EXP.

In a falling flag installation, the PIBVEXP mounts

above the target assembly (Figure 1B). Closing the

valve lowers the target assembly and releases the actu-

ating lever on the PIBVEXP.

The PIBVEXP will work for either application. To

prevent binding on the actuating lever the unit must

be oriented with the conduit entry pointing down-

ward for a rising flag application and pointing up-

ward for a falling flag application. An improper

installation can cause damage to the PIBVEXP de-

vice.

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 PIBVEXP. Add 3/32" to

this measurement and mark the outside of the hous-

ing 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

location. Drill with a 23/32" drill bit and tap a 1/2" NPT

thread.

Figures 1A and 1B:

Rising Flag Falling flag

5. Replace the head and target assembly.

6. Screw the locknut onto the threaded nipple which is

supplied with the PIBVEXP.

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 PIBVEXP from the end of the enclosure

to this distance. Tighten the set screw which holds the

actuating lever.

9. Close the valve 3 to 4 revolutions.

10. Install the PIBVEXP onto the nipple and orient the con-

duit entry per Section 1. Apply pressure to the

PIBVEXP and lock the set screws to secure the nipple to

the PIBVEXP.

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 PIBVEXP 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

PIBVEXP contacts trip. The switches must trip within

1/5of the full travel distance of the valve.

13. If the PIBVEXP 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.)

14. Wire the switch as shown in Fig. 3.

Section 2

Installation Instructions For Butterfly Valves

(See Figure 2)

1. Remove the 1/2" NPT plug from the gear housing.

2. Loosen 2 set screws that hold the nipple on the

PIBV2EXP 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 PIBVEXP onto the

nipple, orienting the PIBVEXP to trip the switch as the

valve closes. To prevent binding on the actuating lever,

D770-28-00 3 I56-1430-000

the unit must be oriented so the flag falls away from the

actuating lever when the valve is closed. Apply pressure

to PIBVEXP 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 lever screw.

8. Open the valve to the full open position and tighten the

lever screw to hold actuating arm in position. (Actuat-

ing arm length will adjust slightly as valve is opened.)

Check to ensure that in the full open position the actu-

ating arm is not resting on the nipple.

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.

10. Wire the switch as shown in Fig. 3.

Figure 2:

Figure 3:

SUP. SWITCH SUP. SWITCH

TO NONSILENCEABLE

INITIATING ZONE OF

LISTED FACP

END OF LINE

RESISTOR

TYPICAL FACP CONNECTION

TO POWER SOURCE

COMPATIBLE WITH BELL

TYPICAL LOCAL BELL CONNECTION

LOCAL

BELL

BREAK WIRE AS SHOWN FOR SUPERVISION

OF CONNECTION. DO NOT ALLOW STRIPPED

WIRE LEADS TO EXTEND BEYOND SWITCH

HOUSING. DO NOT LOOP WIRES.

A78-1633-01

Technical Manuals Online! - http://www.tech-man.com