HomeMy WebLinkAbout2280 FARADAY AVE; ; AS110042; Permit10/27/2020 AS110042 Permit Data
City of Carlsbad
Sprinkler Permit
Job Address: 2280 FARADAYAV
Permit Type: SPRINK
Parcel No: 2120614500
Lot #: 0
Permit No: AS110042
Status: ISSUED
- Applied 3/11/2011
Approved: 3/11/2011
Reference No.: Issued: 3/11/2011
PC #: Inspector:
Project Title: ISIS T.I. FIRE SPRINKLER PLAN CHECK & INSPECTIONS
Applicant:
AAA FIRE SPRINKLERS
20942 JAPATUL RD.
ALPINE, CA
Owner:
FARADAY PARTNERS L L C
C/O DEl LLC
1800 THIBODO RD #320
VISTA CA
Fees ($) Add'I Fees ($) Total ($) Balance ($)
130 0 130 0
1/1
SHOC)42-
tqco Ffre & Building
IlProducts
Technical Services: Tel: (800) 381-9312 / Fax: (800) 791-5500
Series TY-FRB - 2.8, 4.2,5, and 8.0 K-factor
Upright, Pendent, and Recessed Pendent Sprinklers
Quick Response, Standard Coverage
General
Description
The Tyco® Series TY-FRB, 2.8, 4.2,
5.6, and 8.0 K-factor, Upright and Pen-
dent Sprinklers described in this data
sheet are quick response - standard
coverage, decorative 3 mm glass bulb
type spray sprinklers designed for use
in light or ordinary hazard, commercial
occupancies such as banks, hotels,
shopping malls, etc.
The recessed version of the Series
TY-FRB Pendent Sprinkler, where ap-
plicable, is intended for use in areas
with a finished ceiling. It uses either a
two-piece Style 10 (1/2 inch NPT) or
Style 40 (3/4 inch NPT) Recessed Es-
cutcheon with 1/2 inch (12,7 mm) of
recessed adjustment or up to 3/4 inch
(19,1 mm) of total adjustment from the
flush pendent position, or a two-piece
Style 20 (1/2 inch NPT) or Style 30(3/4
inch NPT) Recessed Escutcheon with
1/4 inch (6,4 mm) of recessed adjust-
ment or up to 1/2 inch (12,7 mm) of
total adjustment from the flush pen-
dent position. The adjustment pro-
vided by the Recessed Escutcheon re-
duces the accuracy to which the fixed
pipe drops to the sprinklers must be
cut.
Corrosion resistant coatings, where
applicable, are utilized to extend the
life of copper alloy sprinklers beyond
that which would otherwise be ob-
IMPORTANT
Always refer to Technical Data
Sheet TFP 700 for the "INSTALLER
WARNING" that provides cautions
with respect to handling and instal-
lation of sprinkler systems and com-
ponents. Improper handling and in-
stallation can permanently damage
a sprinkler system or its compo-
nents and cause the sprinkler to fail
to operate in a fire situation or cause
it to operate prematurely.
tamed when exposed to corrosive at-
mospheres. Although corrosion resis-
tant coated sprinklers have passed the
standard corrosion tests of the appli-
cable approval agencies, the testing is
not representative of all possible cor-
rosive atmospheres. Consequently, it
is recommended that the end user be
consulted with respect to the suitability
of these coatings for any given corro-
sive environment. The effects of ambi-
ent temperature, concentration of
chemicals, and gas/chemical velocity,
should be considered, as a minimum,
along with the corrosive nature of the
chemical to which the sprinklers will be
exposed.
An intermediate level versions of the
Series TY-FRB Pendent Sprinklers
are detailed in Technical Data Sheet
TFP356, and Sprinkler Guards are de-
tailed in Technical Data Sheet TFP780
WARNINGS
The Series TY-FRB Sprinklers de-
scribed herein must be installed and
maintained in compliance with this
document, as well as with the applica-
ble standards of the National Fire Pro-
tection Association, in addition to the
standards of any other authorities hav-
ing jurisdiction. Failure to do so may
impair the performance of these de-
vices.
The owner is responsible for maintain-
ing their fire protection system and de-
vices in proper operating condition.
The installing contractor or sprinkler
manufacturer should be contacted
with any questions.
Model/Sprinkler
Identification
Numbers
TYII3I - Upright 2.81K, 1/2"NPT
TY1231 - Pendent 2.81K, 1/2"NPT
TY2131 - Upright 4.21K, 1/2"NPT
TY2231 - Pendent 4.21K, 1/2"NPT
TY3131 - Upright 5.61K, 1/2"NPT
TY3231 - Pendent 5.61K, 1/2"NPT
TY4131 - Upright 8.01K, 3/4"NPT
1Y4231 - Pendent 8.01K, 3/4"NPT
1Y4831- Upright 8.01K, 1/2"NPT
TY4931- Pendent 8.01K, 1/2"NPT
Page 1 of 10 AUGUST, 2007 TFPI7I
2-7/8" (73,0 mm) DIA.
Page 2 of 10
ESCUTCHEON 7/16 (11,1 mm)
PLATE SEATING NOMINAL
SURFACE 1/2,,
NPT MAKE-IN
-r-
1
2-1/4
(57,2 mm)
1-9/16"
(39,7 mm)
SSP DEFLECTOR *
TFP171
STYLE 10 or 20
RECESSED SSU ESCUTCHEON I IF II,IIe1
NOMINAL
MAKE-IN 2
____
PENDENT RECESSED PENDENT UPRIGHT CROSS SECTION
1 - Frame 3-Sealing 4-Bulb 6- Deflector * Temperature rating is indicated on deflector or adjacent to
2 - Button Assembly 5- Compression 7 - Bushing orifice seat on frame. Screw
FIGURE 1
QUICK RESPONSE SERIES TY-FRB UPRIGHT (TYI 131) AND PENDENT (TY1231) SPRINKLERS
2.8 K-FACTOR, 1/2 INCH NPT
ESCUTCHEON 7/16" (11,1 mm)
PLATE SEATING 1/2" NOMINAL
SURFACE NPT MAKE-IN
2-3/16"
(55,6 mm)
f
(38,1 mm)
STYLE 10 or 20
RECESSED
ESCUTCHEON
______ L NOMINAL 4
FLAT
j4*p •
4 I-.
SSP DEFLECTOR W - 2-7/8" (73,0 mm) DIA.
PENDENT RECESSED PENDENT UPRIGHT CROSS SECTION
1 - Frame 3 - Sealing 4 - Bulb 6 - Deflector * Temperature rating is indicated on deflector or adjacent to 2 - Button Assembly 5 - Compression orifice seat on frame. Screw
FIGURE 2
QUICK RESPONSE SERIES TY-FRB UPRIGHT (TY2131) AND PENDENT (TY2231) SPRINKLERS
4.2 K-FACTOR, 112 INCH NPT
6*
1/2"
(12,7 mm)
NOMINAL
MAKE-IN
2-1/4"
(57,2 mm)
CROSS SECTION
TFPI7I
ESCUTCHEON 7/16 (11,1 mm)
PLATE SEATING 1/2 NOMINAL
SURFACE NPT MAKE-IN
2-3/16
(55,6 mm)
1-1/2"
(38,1 mm)
Page 3 of 10
STYLE 10 or 20
RECESSED
ESCUTCHEON 'II!IIII
Pt,uIrI
4
SSP DEFLECTOR * — 2-7/8" (73,0 mm) DIA.
PENDENT RECESSED PENDENT UPRIGHT CROSS SECTION
1 - Frame 3-Sealing 4-Bulb 6- Deflector * Temperature rating is indicated on deflector or adjacent to
2 - Button Assembly 5 - Compression orifice seat on frame. Screw
FIGURE 3
QUICK RESPONSE SERIES TY-FRB UPRIGHT (TY3131) AND PENDENT (TY3231) SPRINKLERS
5.6 K-FACTOR, 1/2 INCH NPT
STYLE 30 or 40
RECESSED SSU* ESCUTCHEON DEFLECTOR
ESCUTCHEON 1/2" (12,7 mm)
PLATE SEATING NOMINAL
SURFACE MAKE-IN NPT
2-5/16"
_
(58,7 mm)
I 1-9/16"
I (39,7 mm)
3/4" NPT
UPRIGHT
WRENCH
FLATS
SSP DEFLECTOR* I 2-7/8" (73,0 mm) DIA.
PENDENT RECESSED PENDENT
1 - Frame 3 - Sealing 4 - Bulb 6 - Deflector
2 - Button Assembly 5 - Compression
Screw
* Temperature rating is indicated on deflector or adjacent to
orifice seat on frame.
FIGURE 4
QUICK RESPONSE SERIES TY-FRB UPRIGHT (TY4 131) AND PENDENT (TY4231) SPRINKLERS
8.0 K-FACTOR, 314 INCH NPT
7/16(11,1 mm)
NOMINAL
MAKE-IN 1/2
NPT
2-1/4
(57,2 mm) (1
WRENCH
FLATS
sSu *
DEFLECTOR
Page 4 of 10 TFPI7I
s.-.
DEFLECTOR
PENDENT
1 - Frame 3 - Sealing 4 - Bulb 6 - Deflector
2 - Button Assembly 5 - Compression
Screw
CROSS
UPRIGHT SECTION
* Temperature rating is indicated on deflector or adjacent to
orifice seat on frame.
FIGURE 5
QUICK RESPONSE SERIES TY-FRB UPRIGHT (TY4831) AND PENDENT (TY4931) SPRINKLERS
8.0 K-FACTOR, 1/2 INCH NPT
Technical
Data
Approvals
UL and C-UL Listed.
FM, LPCB, and NYC Approved.
(Refer to Table A and B for complete
approval information including corro-
sion resistant status.)
Maximum Working Pressure
Refer to Table C.
Discharge Coefficient
K = 2.8 GPM/p5i112 (40,3 LPM/bar112)
K = 4.2 GPM/psi112 (60,5 LPM/barl'2)
K = 5.6 GPM/psi112 (80,6 LPM/barl'2)
K = 8.0 GPM/psi1l2 (115,2 LPM/barll2)
Temperature Ratings
Refer to Table A and B
Finishes
Sprinkler: Refer to Table A and B.
Recessed Escutcheon: White Coated,
Chrome Plated, or Brass Plated.
Physical Characteristics
Frame .............Bronze
Button .........Brass/Copper
Sealing Assembly ..........
Beryllium Nickel w/Teflont
Bulb ...............Glass
Compression Screw .....Bronze
Deflector .......Copper/Bronze
Bushing (K=2.8) .......Bronze
Operation
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, allowing the sprinkler to
activate and water to flow.
Design
Criteria
The Series TY-FRB Pendent and Up-
right Sprinklers are intended for fire
protection systems designed in ac-
cordance with the standard installation
rules recognized by the applicable
Listing or Approval agency (e.g., UL
Listing is based on the requirements of
NFPA 13, and FM Approval is based
on the requirements of FM's Loss Pre-
vention Data Sheets ). Only the Style
10, 20, 30, or 40 Recessed Escutch-
eon, as applicable, is to be used for
recessed pendent installations.
.4-
TFPI7I
SPRINKLER FINISH (See Note 7)
K TYPE TEMP. BULB
LIQUID
NATURAL
BRASS
I CHROME
PLATED
I WHITE***
POLYESTER
2.8
1/2"
PENDENT
(TY1231)
and
UPRIGHT
(TYII3I)
135°F/57C Orange
1,2,3,5
155F/68°C Red
175°F/79°C Yellow
200°F193°C Green
286°F/141°C Blue
NPT 135°F157°C Orange
1, 2, 5
RECESSED
PENDENT
(TY1231)*
Figure 6
155°F/68°C Red
175°F/79°C Yellow
200F/93C Green
RECESSED
PENDENT
(TY1231)**
Figure 7
135°F/57C Orange
155°F/68°C Red
175°F/79°C Yellow
200°F/93°C Green
4.2
1/2'
NPT
PENDENT
(TY2231)
and
UPRIGHT
(TY2131)
135°F/57°C Orange
1,2
155°F/68°C Red
175°F/79°C Yellow
200°FI93C Green
286°F/141°C Blue
RECESSED
PENDENT
(TY2231)*
Figure 8
135°F/57°C Orange
155°F168°C Red
175°F/79°C Yellow
200°F/93°C Green
RECESSED
PENDENT
(1Y2231)**
Figure 9
135°F/57°C Orange
155F/68C Red
175°F179°C Yellow
200°F193°C Green
NOTES:
Listed by Underwriters Laboratories, Inc. (UL) as Quick Response Sprinklers.
Listed by Underwriters Laboratories, Inc. for use in Canada (C-UL) as Quick Re-
sponse Sprinklers.
Approved by Factory Mutual Research Corporation (FM) as Quick Response Sprin-
klers.
5. Approved by the City of New York under MEA 354-01-E.
7. Where Polyester Coated Sprinklers are noted to be UL and C-UL Listed, the sprin-
klers are UL and C-UL Listed as Corrosion Resistant Sprinklers.
* Installed with Style 10 (1/2' NPT) or Style 40 (3/4" NPT) 3/4" Total Adjustment
Recessed Escutcheon, as applicable.
Installed with Style 20 (1/2" NPT) or Style 30 (3/4" NPT) 1/2" Total Adjustment
Recessed Escutcheon, as applicable.
" Frame and Deflector only. Listings and approvals apply to color (Special Order).
N/A: Not Available
TABLE A
LABORATORY LISTINGS AND APPROVALS
2.8 AND 4.2 K-FACTOR SPRINKLERS
Page 5 of 10
Page 6 of 10 TFPI7I
SPRINKLER FINISH (See Note 8)
K TYPE TEMP. BULB
LIQUID
NATURAL
BRASS
I CHROME
PLATED
WHITE
I
POLYESTER
LEAD
COATED
5.6
1/2"
PENDENT
(TY3231)
and
UPRIGHT
(TY3131)
135°F/57°C Orange
1,2,3,45,6,7 1,2,3,5
155"F/68°C Red
175°F/79°C Yellow
200°F/93°C Green
286"F/141°C Blue
NPT RECESSED
PENDENT
(TY3231)*
Figure 10
135°F157°C Orange
1,2,4,5 N/A
155°F/68"C Red
175°F/79°C Yellow
200°F/93°C Green
135°F/57°C Orange
1,2,3,4,5 N/A
RECESSED
PENDENT
(TY3231)**
Figure 11
155°F/68"C Red
175°F/79°C Yellow
200°F/93"C Green
8.0
3/4',
PENDENT
(TY4231)
and
UPRIGHT
(TY4131)
135°F/57°C Orange
1, 2, 3, 4, 5, 6, 7
1,2,5
155°F/68"C Red
175°F179°C Yellow
200"F/93°C Green
286"F/141°C Blue
NPT
RECESSED
PENDENT
(TY4231)*
Figure 12
135°F/57°C Green
1, 2, 4, 5 N/A
155°F168°C Orange
175°F/79"C Red
200°F193"C Yellow
RECESSED
PENDENT
(TY4231)**
Figure 13
135"F/57"C Orange
1,2, 3,4, 5 N/A
155"F/68°C Red
175°F/79°C Yellow
200"F/93"C Green
8.0
1/2"
NPT
PENDENT
(TY4931)
and
UPRIGHT
(TY4831)
135°F/57°C Orange
1,2,4,5,6
1,2,5
155"F/68°C Red
175°F/79°C Yellow
200°F/93°C Green
286"F/141°C Blue
NOTES:
Listed by Underwriters Laboratories, Inc. (UL) as Quick Response Sprinklers.
Listed by Underwriters Laboratories, Inc. for use in Canada (C-UL) as Quick Response Sprinklers.
Approved by Factory Mutual Research Corporation (FM) as Quick Response Sprinklers.
Approved by the Loss Prevention Certification Board (LPCB Ref. No. 007k104) as Quick Response Sprinklers; however, the
LPCB does not rate the thermal sensitivity of recessed sprinklers.
Approved by the City of New York under MEA 354-01-E.
VdS Approved (For details contact Tyco Fire & Building Products, Enschede, Netherlands, Tel. 31-53-428-4444/Fax 31-53-428-3377).
Approved by the Loss Prevention Certification Board (LPCB Ref. No. 094a/06) as Quick Response Sprinklers.
Where Polyester Coated and Lead Coated Sprinklers are noted to be UL and C-UL Listed, the sprinklers are UL and C-UL Listed as
Corrosion Resistant Sprinklers. Where Lead Coated Sprinklers are noted to be FM Approved, the sprinklers are FM Approved as a
Corrosion Resistant Sprinklers.
* Installed with Style 10 (1/2" NPT) or Style 40 (3/4" NPT) 3/4" Total Adjustment Recessed Escutcheon, as applicable.
** Installed with Style 20 (1/2" NPT) or Style 30 (3/4" NPT) 1/2" Total Adjustment Recessed Escutcheon, as applicable.
Frame and Deflector only. Listings and approvals apply to color (Special Order).
N/A: Not Available
TABLE B
LABORATORY LISTINGS AND APPROVALS
5.6 AND 8.0 K-FACTOR SPRINKLERS
TFPI7I Page 7 of 10
SPRINKLER FINISH
K TYPE NATURAL CHROME I WHITE LEAD
BRASS PLATED
I
POLYESTER COATED
PENDENT (TY3231)
and
2.8 UPRIGHT (1Y3131) 175 PSI (12,1 BAR) N/A
1/2 RECESSED PENDENT NPT (TY323)
PENDENT (TY4231)
and
4.2 UPRIGHT (TY4131) 175 PSI (12,1 BAR) N/A
3,14" RECESSED PENDENT NPT (TY4231)
PENDENT (TY3231)
and 250 PSI (17,2 BAR) 175 PSI (12,1 BAR)
5.6 UPRIGHT (TY3131) OR
1/2' 175 PSI (12,1 BAR) RECESSED PENDENT NPT (TY3231) (SEE NOTE 1) N/A
PENDENT (TY4231)
and 175 PSI (12,1 BAR) 175 PSI (12,1 BAR)
8.0 UPRIGHT (TY4131)
RECESSED PENDENT NPT (TY4231) N/A
8.0 PENDENT (1Y4931)
1/2" and 175 PSI (12,1 BAR) 175 PSI (12,1 BAR)
NPT UPRIGHT (TY4831)
NOTES:
1. The maximum working pressure
Underwriters Laboratories, Inc. for
of 250 psi (17,2 bar) only applies to the Listing by Underwriters La
use in Canada (C-UL); and , the Approval by the City of New York.
TABLE C, MAXIMUM WORKING PRESSURE
Ins talla Lion
The Series TY-FRB Sprinklers must
be installed in accordance with the fol-
lowing 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 135F/57°C to 3/32
inch (2,4 mm) for the 286°F/141C
temperature ratings.
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 maxi-
mum of 21 ft. lbs. (28,5 Nm) of torque
may be used to install sprinklers with
1/2 NPT connections. A leak tight 3/4
inch NPT sprinkler joint should be ob-
tained with a torque of 10 to 20 ft.lbs.
(13,4 to 26,8 Nm). A maximum of 30
ft.lbs. (40,7 Nm) of torque is to be used
to install sprinklers with 3/4 NPT con-
nections. Higher levels of torque may
distort the sprinkler inlet and cause
leakage or impairment of the sprinkler.
Do not attempt to make-up for insuffi-
cient adjustment in the escutcheon
plate by under- or over-tightening the
sprinkler. Readjust the position of the
sprinkler fitting to suit.
The Series TY-FRB Pendent and Up-
right Sprinklers must be installed in
accordance with the following instruc-
tions.
Step 1. Pendent sprinklers are to be
installed in the pendent position, and
upright sprinklers are to be installed in
the upright position.
Step 2. With pipe thread sealant ap-
plied to the pipe threads, hand tighten
the sprinkler into the sprinkler fitting.
Step 3. Tighten the sprinkler into the
sprinkler fitting using only the W-Type
6 Sprinkler Wrench (Ref. Figure 14).
With reference to Figures 1, 2, 3, 4,
and 5, the W-Type 6 Sprinkler Wrench
is to be applied to the sprinkler wrench
flats.
The Series TY-FRB Recessed Pen-
dent Sprinklers must be installed in
accordance with the following instruc-
tions.
boratories Inc. (UL); the Listing by
Step A. After installing the Style 10.
20, 30, 0r40 Mounting Plate, as appli-
cable, over the sprinkler threads and
with pipe thread sealant applied to the
pipe threads, hand tighten the sprin-
kler into the sprinkler fitting.
Step B. Tighten the sprinkler into the
sprinkler fitting using only the W-Type
7 Recessed Sprinkler Wrench (Ref.
Figure 15). With reference to Figure 1,
2, 3, and 4, the W-Type 7 Recessed
FIGURE 9
SERIES TY-FRB RECESSED PENDENT
WITH TWO-PIECE 1/2 INCH TOTAL ADJUSTMENT
STYLE 20 RECESSED ESCUTCHEON
4.2 K-FACTOR, 1/2 INCH NPT
2-7/8" DIA. -
(73,0 mm) 1/2" (12,7 mm)
2-1/4" DIA. 1/4(6,4 mm)
(57,2 mm) MOUNTING I
- OIATC I
1/80
r LflI = I
(32mm) I
1-1/4" (31,8 mm
1" (25,4 mm)
1/2±1/8"
(12,7±3,2 mm)
FACE OF
SPRINKLER
FITTING
T_\_
MOUNTING
SURFACE
CLOSURE SERIES
Page 8 of 10
2-7/8" DIA. -
(73,0 mm) 3/4(19,1 mm)
2-1/4" DIA. 1/4 (6,4 mm)I
(57,2 mm) MOUNTING
01 Arr V rIr,I_
1/8"
(3,2 mm)
MOUNTING
SURFACE
CLOSURE SERIES 1-5/16" (33,3 mm)
TY-FRB 13/16(20,6 mm)
FIGURE 6
SERIES TY-FRB RECESSED PENDENT
WITH TWO-PIECE 3/4 INCH TOTAL ADJUSTMENT
STYLE 10 RECESSED ESCUTCHEON
2.8 K-FACTOR, 1/2 INCH NPT
TFPI7I
- 2-7/8" DIA. -
(73,0 mm) 1/2±1/8" 1/2" (12,7 mm)
fl (12,7±3,2 mm) 2-1/4" DIA. 1/4(6,4mm)
FACE OF [572 mm) MOUNTING
SPRINKLER PLATE
FITTING
I 1/8"
-u-I
SURFACE/
(32 mm) I
\
MOUNTING
CLOSURE SERIES 1-5/16" (33,3 mm)
TY-FRB 1-1/16' (27,0 mm)
FIGURE 7
SERIES TY-FRB RECESSED PENDENT
WITH TWO-PIECE 1/2 INCH TOTAL ADJUSTMENT
STYLE 20 RECESSED ESCUTCHEON
2.8 K-FACTOR, 1/2 INCH NPT
5/8±1/4
(15,9±6,4 mm)
FACE OF
SPRINKLER
FITTING
- 2-7/8" DIA.
5/8±1/4"
(73,0 mm) 3/4(19,1 mm)
(15,9±6,4 mm) 2-1/4" DIA. 1/4(6,4mm)
FACE OF
,2mm
MOUNTING
SPRINKLER PLATE
FITTING
1/8"
3,2 mm)
MOUNTING
SURFACE
SERIES
/
1-1/4" (31,8 mm) CLOSURE TY-FRB 3/4" (19,1 mm)
FIGURE 8
SERIES TY-FRB RECESSED PENDENT
WITH TWO-PIECE 3/4 INCH TOTAL ADJUSTMENT
STYLE 10 RECESSED ESCUTCHEON
4.2 K-FACTOR, 1/2 INCH NPT
Sprinkler Wrench is to be applied to
the sprinkler wrench flats.
Step C. After the ceiling has been in-
stalled or the finish coat has been ap-
plied, slide on the Style 10, 20, 30, or
40 Closure over the Series TY-FRB
Sprinkler and push the Closure over
the Mounting Plate until its flange
comes in contact with the ceiling.
Care and
Maintenance
The Series TY-FRB Sprinklers must
be maintained and serviced in accord-
ance with the following instructions:
NOTES
Before closing a fire protection system
main control valve for maintenance
work on the fire protection system that
it controls, permission to shutdown the
affected fire protection system must be
obtained from the proper authorities
and all personnel who may be affected
by this action must be notified.
The owner must assure that the sprin-
klers are not used for hanging of any
objects; otherwise, non-operation in
the event of a fire or inadvertent opera-
tion may result.
Absence of an escutcheon, which is
used to cover a clearance hole, may
delay the time to sprinkler operation in
a fire situation.
Sprinklers that are found to be leaking
or exhibiting visible signs of corrosion
must be replaced.
Automatic sprinklers must never be
painted, plated, coated or otherwise
altered after leaving the factory. Modi-
fied 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 dam-
age to the sprinklers - before, during,
and after installation. Sprinklers dam-
aged 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
Section).
Frequent visual inspections are rec-
ommended to be initially performed for
corrosion resistant coated sprinklers,
after the installation has been com-