Tyco Fire Product CENTRAL BV4 User manual

falls away to expose the Sprinkler
Assembly. At this point the Deflector
supported by the Arms drops down to its
operational position.
The glass bulb contains a fluid which
expands when exposed to heat. When the
rated temperature is reached, the fluid
expands sufficiently to shatter the glass
bulb, which then allows the sprinkler to
activate & flow water.
WARNING
The Model BV4 & BV4-FR Concealed
Pendent Sprinklers described herein must
be installed & maintained in compliance
with this document, as well as with the
applicable standards of the National Fire
Protection Association, in addition to the
standards of any other authorities having
jurisdiction. Failure to do so may impair the
integrity of these devices.
The owner is responsible for maintaining
their fire protection system and devices in
proper operating condition. The installing
contractor or sprinkler manufacturer
should be contacted relative to any
questions.
Sprinkler Identification Number
SIN C3551 - Model BV4
SIN C3531 - Model BV4-FR
Approvals
UL and C-UL Listed. NYC and
FM Approved.
(The approvals apply only to the service
conditions indicated in the Design Criteria
Section)
Maximum Working Pressure
175 psi (12,1 bar)
Pipe Thread Connection
1/2 inch NPT
Discharge Coefficient
K = 5.6 GPM/psi1/2 (80,6 LPM/bar1/2)
Tyco Fire Products --- www.centralsprinkler.com
451 North Cannon Avenue, Lansdale, Pennsylvania 19446 --- USA
Customer Service/Sales: Tel: [phone] / Fax: [phone]
Technical Services: Tel: [phone] / Fax: [phone]
Model BV4 & BV4-FR
5.6 K-factor
Standard & Quick Response
Standard Coverage
Concealed Pendent Glass Bulb Automatic Sprinkler
No. 1-8.0
General
Description
The Central Model BV4, 5.6 K-factor,
standard response & BV4-FR, 5.6
K-factor, quick response - standard
coverage, decorative glass bulb type
spray sprinklers designed for use in light or
ordinary hazard, commercial occupancies
such as banks, hotels, shopping malls,
etc.
Each unit includes a Cover Plate Assem-
bly which conceals the sprinkler operating
components above the ceiling. The
separable two-piece design of the Cover
Plate and Support Cup Assemblies allows
installation of the sprinklers and pressure
testing of the fire protection system prior to
installation of a suspended ceiling or
application of the finish coating to a fixed
ceiling. They also permit removal of
suspended ceiling panels for access to
building service equipment without having
to first shut down the fire protection system
and remove sprinklers.
Also, the separable two-piece design of
the sprinkler provides for 1/2 inch
(12,7 mm) of vertical adjustment, to
reduce the accuracy to which the length of
fixed pipe drops to the sprinkler must be
cut.
The BV4 & BV4-FR Concealed Pendent
Sprinklers are shipped with a Disposable
Protection Cap. The Protective Cap is
temporarily removed to install the BV4 &
BV4-FR, and then replaced to protect the
BV4 & BV4-FR while the ceiling is being
installed and finished. The tip of the
Protection Cap can be used to mark the
center of the ceiling hole into plaster
board, ceiling tiles, etc. by pushing the
ceiling product against the Protection Cap.
When the ceiling installation is complete,
the Protection Cap is removed and the
Cover Plate Assembly installed.
Operation: When exposed to heat from a
fire, the Cover Plate, which is soldered to
the Retainer Assembly at three points,
Technical
Data
CENTRAL BV4 & BV4-FR 2-01
Standard Spray
Concealed
Pendent
Sprinklers
Temperature Ratings
155°F/68°C Sprinkler - 135°F/57°C Plate
200°F/93°C Sprinkler - 165°F/74°C Plate
Finishes
Sprinkler: Natural Brass
Cover Plate: Chrome or Brass Plated;
*Flat White, Bright White, or Custom
Painted
* Standard Finish supplied when White is
specified
Physical Characteristics
The Model BV4 & BV4-FR Concealed
Pendent Sprinklers utilize a dezincification
resistant (DZR) bronze frame and a 5 mm
(standard response) or 3 mm bulb (quick
response). The two-piece button assem-
bly is brass and copper. The sprinkler
frame orifice is sealed with a gasketed
spring plate (Belleville Seal) consisting of a
beryllium nickel disc spring that is sealed
on both its inside and outside edges with a
TeflonTM gasket. The arms and deflector
are bronze, and the support cup is steel.
The cover plate and retainer assembly are
brass.
OBSOLETE

(63,5 mm ±3,2 mm)
Hole Diameter
3-1/4" (82,6 mm)
Diameter 3/16"
(4,8mm)
2-1/2" ±1/8"
2" 1/4"
(50,8 mm 6,4 mm)
±±
WRENCH
FLAT
ELEVATION VIEW
CENTRAL
3/16" (4,8 mm) Minimum
11/16" (17,5 mm) Maximum
ELEVATION VIEW
CENTRAL
Design
Criteria
The Model BV4 Concealed Pendent Sprinklers are UL and
C-UL listed and NYC Approved (MEA 64-93-E Vol. II) as
standard response - standard spray sprinklers, for use in
accordance with current NFPA standards and FM Approved as
standard response - standard spray sprinklers for use in
accordance with the FM Loss Prevention Data Sheets.
The Model BV4-FR Concealed Pendent Sprinklers are UL
and C-UL listed and NYC Approved (MEA 64-93-E Vol. II)
as quick response - standard spray sprinklers, for use in
accordance with current NFPA standards and FM Approved as
standard response - standard spray sprinklers for use in
accordance with the FM Loss Prevention Data Sheets.
The Model BV4 & BV4-FR Concealed Pendent Sprinklers
are only listed with the Series BV4 Concealed Cover Plates.
The Model BV4 Concealed Pendent Sprinklers are UL
listed for use with a "Clean Room Seal", see data sheet 28-
4.0.
The Support Cup of the Model BV4 Concealed Pendent
Sprinkler has several slots in the base of the cup which
allows heat from a fire to flow past the thermal sensitive
operating element accelerating sprinkler activation. Due to
the presence of these slots, the installation of these
sprinklers in ceilings which have positive pressure in the
space above, is not permitted.
Figure 2 - Model BV4 & BV4-FR,
Concealed Pendent Sprinkler (Activated)
Figure 1 - Model BV4 & BV4-FR,
Concealed Pendent Sprinkler
Installation
The Model BV4 & BV4-FR Concealed Pendent Sprinklers
must be installed in accordance with the following instructions.
NOTES
Do not install any bulb type sprinkler if the bulb is cracked or
there is a loss of liquid from the bulb. With the sprinkler held
horizontally, a small air bubble should be present. The
diameter of the air bubble is approximately 1/16 inch (1,6 mm)
for the 155
° F/68 ° C to 3/32 inch (2,4 mm) for the 200 ° F/93 ° C
rating.
A leak tight 1/2 inch NPT sprinkler joint should be obtained
with a torque of 7 to 14 ft.lbs. (9,5 to 19,0 Nm). A maximum of
21 ft.lbs. (28,5 Nm) of torque is to be used to install 1/2 inch
NPT sprinklers. Higher levels of torque may distort the
sprinkler inlet with consequent leakage or impairment of the
sprinkler.
Do not attempt to make up for insufficient adjustment in the
escutcheon plate by under- or overtightening the sprinkler.
Readjust the position of the sprinkler fitting to suit.
Step 1. The sprinkler must only be installed only in the
pendent position and with the centerline of the sprinkler
perpendicular to the mounting surface.
Step 2. Remove the Protective Cap.
Step 3. With pipe thread sealant applied to the pipe threads,
hand tighten the sprinkler into the sprinkler fitting.
Step 4. Wrench tighten the Sprinkler using only the BV4
Sprinkler Wrench (Ref. Figure 4). The BV4 Sprinkler Wrench is
to be applied to the Sprinkler Wrench flats only.
Step 5. Replace the Protective Cap by pushing it upwards until
it bottoms out against the Support Cup. The Protective Cap
helps prevent damage to the Deflector and Arms during ceiling
OBSOLETE

COVER PLATE
ASSEMBLY
COVER PLATE
SUPPORT CUP
DEFLECTOR
ARMS
GLASS BULB
OPERATING
ELEMENT
GASKETED
SPRING PLATE
(BELLEVILLE SEAL)
RETAINER
ASSEMBLY
FRAME
Figure 3 - Cross Section Model BV4 & BV4-FR,
Concealed Pendent Sprinkler
Figure 4 - BV4 Sprinkler Wrench
(Part #1075)
installation and/or during application of the finish coating of the
ceiling. It may also be used to locate the center of the
clearance holes by gently pushing the ceiling material up
against the center point of the Protective Cap.
NOTE
As Long as the Protective Cap remains in place, the system is
considered to be "Out of Service"
Step 6. After the ceiling has been completed with the 2-1/2
inch (66,7 mm) diameter clearance hole and in preparation for
installing the Cover Assembly, remove and discard the
Protective Cap, and verify that the Deflector moves up and
down freely. If the Sprinkler has been damaged and the
Deflector does not move up and down freely, replace the
entire Sprinkler Assembly. Do not attempt to modify or repair
a damaged sprinkler.
Step 7. Screw on the Cover Plate/Retainer Assembly until its
flange just comes in contact with the ceiling. Do not continue
to screw on the Cover Plate/Retainer Assembly such that it
lifts a ceiling panel out of its normal position. If the Cover
Plate/Retainer Assembly cannot be engaged sufficiently to
contact the ceiling, the sprinkler fitting must be repositioned.
The Model BV4 & BV4-FR Concealed Pendent Sprinklers
must be maintained and serviced in accordance with the
following instructions.
NOTES
Absence of the Cover Plates which is used to cover a
clearance hole, may delay the time to operation in a fire
situation.
When properly installed, there is a nominal 3/32 inch (2,4
mm) air gap between the lip of the Cover Plate and the
ceiling. This air gap is necessary for proper operation of the
sprinkler. If the ceiling is to be repainted after the installa-
tion of the sprinkler, care must be exercised to ensure that
the new paint does NOT seal off any of the air gap.
Factory painted Cover Plates MUST NOT be repainted.
They should be replaced, if necessary, by factory painted
units.
Do not pull the Cover Plates relative to the Retainer
Assembly. Separation may result.
Before closing a fire protection system main control valve
for maintenance work on the fire protection system it
controls, permission to shut down the affected fire protec-
tion systems must be obtained from the proper authorities.
All personnel who may be affected by this action must be
notified.
Sprinklers which are found to be leaking or exibiting visible
signs of corrosion must be replaced.
Automatic sprinklers must never be shipped or stored
where their temperatures will exceed 100°F/38°C and they
must never be painted, plated, coated or otherwise altered
after leaving the factory. Modified sprinklers must be
replaced. Sprinklers that have been exposed to corrosive
products of combustion, but have not operated, should be
replaced if they cannot be completely cleaned by wiping the
sprinkler with a cloth or by brushing it with a soft bristle
brush.
Care must be exercised to avoid damage - before, during,
and after installation. Sprinklers damaged by dropping,
striking, wrench twist/slippage, or the like, must be re-
placed. Also, replace any sprinkler that has a cracked bulb
or that has lost liquid from its bulb (Ref. Installation Sec-
tion).
If a sprinkler must be removed for some reason, do not
reinstall it or a replacement without reinstalling the Cover
Plate Assembly. If a Cover Plate Assembly becomes
dislodged during service, replace it immediatly.
The owner is responsible for the inspection, testing, and
maintenance of their fire protection system and devices in
compliance with this document, as well as with the appli-
cable standards of the National Fire Protection Association
(e.g., NFPA 25), in addition to the standards of any other
authorities having jurisdiction. The installing contractor or
sprinkler manufacturer should be contacted relative to any
questions.
It is recommended that automatic sprinkler systems be
inspected, tested, and maintained by a qualified Inspection
Service.
Care &
Maintenance
OBSOLETE

Printed in U.S.A. 2-01
Ordering Information: When
placing an order, indicate the full
product name. Please specify the
quantity, model, style, orifice size,
temperature rating, type of finish or
coating, and sprinkler wrench. Refer
to price list for complete listing of Part
Numbers.
Patents: U.S.A. Patent Number
4,014,388 is applicable to the Model
BV4 & BV4-FR Concealed Pendent
Sprinklers. Other Patents are pending
with regard to other design features.
Teflon is a trademark of the DuPont Corp.
Ordering
Information
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Products
Limited
Warranty
Products manufactured by Tyco Fire
Products are warranted solely to the
original Buyer for ten (10) years
against defects in material and
workmanship when paid for and
properly installed and maintained
under normal use and service. This
warranty will expire ten (10) years
from date of shipment by Tyco Fire
Products. No warranty is given for
products or components manufac-
tured by companies not affiliated by
ownership with Tyco Fire Products or
for products and components which
have been subject to misuse, im-
proper installation, corrosion, or which
have not been installed, maintained,
modified or repaired in accordance
with applicable Standards of the
National Fire Protection Association,
and/or the standards of any other
Authorities Having Jurisdiction.
Materials found by Tyco Fire Products
to be defective shall be either repaired
or replaced, at Tyco Fire Products'
sole option. Tyco Fire Products
neither assumes, nor authorizes any
person to assume for it, any other
obligation in connection with the sale
of products or parts of products. Tyco
Fire Products shall not be responsible
for sprinkler system design errors or
inaccurate or incomplete information
supplied by Buyer or Buyer's repre-
sentatives.
IN NO EVENT SHALL TYCO FIRE
PRODUCTS BE LIABLE, IN CON-
TRACT, TORT, STRICT LIABILITY
OR UNDER ANY OTHER LEGAL
THEORY, FOR INCIDENTAL,
INDIRECT, SPECIAL OR CONSE-
QUENTIAL DAMAGES, INCLUDING
BUT NOT LIMITED TO LABOR
CHARGES, REGARDLESS OF
WHETHER TYCO FIRE PRODUCTS
WAS INFORMED ABOUT THE
POSSIBILITY OF SUCH DAMAGES,
AND IN NO EVENT SHALL TYCO
FIRE PRODUCTS' LIABILITY
EXCEED AN AMOUNT EQUAL TO
THE SALES PRICE.
THE FOREGOING WARRANTY IS
MADE IN LIEU OF ANY AND ALL
OTHER WARRANTIES EXPRESS
OR IMPLIED, INCLUDING WARRAN-
TIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR
PURPOSE.
OBSOLETE