Care and  
Maintenance
The Series TY-FRB, 5.6 K-factor Up-
right and Pendent Intermediate Lev-
el Sprinklers must be maintained 
and serviced in accordance with this 
section:
Before closing a fire protection sys-
tem main control valve for mainte-
nance work on the fire protection sys-
tem that it controls, permission to shut 
down the affected fire protection sys-
tem must be obtained from the prop-
er authorities and all personnel who 
may be affected by this action must 
be notified.
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 other-
wise 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 dam-
age to the sprinklers -before, during, 
and after installation. Sprinklers dam-
aged by dropping, striking, wrench 
twist/slippage, or the like, must be 
replaced. Also, replace any sprinkler 
that has a cracked bulb or that has 
lost liquid from its bulb. (Ref. Installa-
tion Section).
The owner is responsible for the in-
spection, testing, and maintenance 
of their fire protection system and de-
vices in  compliance with this  docu-
ment, as well as with the applicable 
standards of the National Fire Protec-
tion Association (e.g., NFPA 25), in ad-
dition to the standards of any other 
authorities having jurisdiction. The in-
stalling contractor or sprinkler manu-
facturer should be contacted relative 
to any questions.
It is recommended that automatic 
sprinkler systems be inspected, test-
ed, and maintained by a qualified In-
spection Service in accordance with 
local requirements and/or national 
code.
Ordering  
Procedure
Contact your local distributor for avail-
ability. When placing an order, indi-
cate the full product name and Part 
Numbers (P/N).
Series TY-FRB Intermediate Sprin-
klers are comprised of separately or-
dered components: Sprinkler, Guard, 
and/or Shield.
Upright Sprinkler Assemblies with 
NPT Thread Connections
Specify: Series TY-FRB Upright  Inter-
mediate Level Sprinkler, K=5.6, (spec-
ify SIN), Quick Response, (specify) 
temperature rating, (specify) finish, 
P/N (specify from Table B)
Pendent Sprinkler Assemblies with 
NPT Thread Connections
Specify: Series TY-FRB Pendent 
Sprinkler, K=5.6, (specify SIN), Quick 
Response, (specify) temperature rat-
ing, (specify) finish, P/N (specify from 
Table B ).
Model G1/S1 Guard with Shield
Specify: Model G1/S1 Sprinkler Guard 
with Shield, (specify) finish, P/N 
(specify).
Red Painted .........P/N 56-938-1-066
Zinc Chromate . . . . . . . P/N 56-938-9-066
Model G1 Sprinkler Guard
Specify: Model G1 Sprinkler Guard, 
(specify) finish, P/N (specify).
Red Painted .........P/N 56 -938-1-001
Zinc Chromate . . . . . . . P/N 56-938-9-001
Model S2 Pendent Shield with  
O-Ring
Specify: Model S2 Pendent Shield 
with O-Ring, 1/2” NPT, Series TY-
FRB Pendent Sprinklers, P/N 
56-070-9-332.
Sprinkler Wrench
Specify: W-Type 6 Sprinkler Wrench, 
P/N 56-000-6-387.
Additional* Guard Installation Tools
Specify: Guard Installation Tool for 
Model G1 Sprinkler Guards, P/N 
56-000-8-597.
*
 
The Guard Installation Tool is included with 
orders in original carton quantities.
  TFP357  
Page 5 of 6
  P/N  77  –   XXX  –   X  –   XXX
SIN
370 5.6K UPRIGHT
2
 (1/2˝ NPT)
1
TY313
371 5.6K PENDENT
3
 (1/2˝ NPT)
1
TY323
TABLE B 
SERIES TY-FRB UPRIGHT AND PENDENT SPRINKLERS 
PART NUMBER SELECTION
SPRINKLER 
FINISH
1 NATURAL BRASS
TEMPERATURE 
RATING
135 135°F (57°C)
155 155°F (68°C)
175 175°F (79°C)
200 200°F (93°C)
286 286°F (141°C)
1.  Use suffix “I” for ISO 7-1 connection, for example, 77-370-1-175-I
2.  Upright G1/S1 Guard with Shield Assembly must be ordered 
separately.
3.  Model S2 Pendent Shield with O-Ring, and Optional Model G1 Guard 
must be ordered separately.