Johnson Controls tyco TY720 Manual

Model TY720
16.8 K-factor Pendent Sprinkler
Electronic Control
General
Description
The TYCO Model TY720 Pendent
Sprinkler is an electronically controlled
sprinkler having a nominal K-factor of
16.8, see Figure 1.
The TY720 sprinkler is designed as an
integral component of the EAS-1 Elec-
tronically Activated Sprinkler System
for Storage Applications, a perfor-
mance-based system addressing
highly challenging high pile storage fire
hazards. For more information about
the sprinkler system and the system
components, refer to technical data
sheet TFP360.
In place of a traditional heat-sensi-
tive glass bulb or solder element, the
TY720 sprinkler features an electronic
linear actuator and tensile link with
hook and strut arrangement holding a
button and seal against the waterway.
An AUTOPULSE Sprinkler Control Heat
Sensor paired with the TY720 sprinkler
is connected directly to the actuator
and is in continuous communication
with an AUTOPULSE EAS-1 Control
Unit.
The control unit software algorithm
analyzes information from heat sensors
in multiple locations and selects the
optimal response in a fire event. An
electrical pulse is then delivered from
an algorithm-selected heat sensor to
its companion TY720 sprinkler, oper-
IMPORTANT
Refer to Technical Data Sheet
TFP2300 for warnings pertaining to
regulatory and health information.
Always refer to Technical Data
Sheet TFP700 for the "INSTALLER
WARNING" that provides cautions
with respect to handling and instal-
lation of sprinkler systems and com-
ponents. Improper handling and
installation 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.
Page 1 of 2
ating the actuator and breaking the
tensile link, allowing waterflow from
the sprinkler.
NOTICE
The TY720 Sprinkler described herein
must be installed and maintained in
compliance with this document, as
well as with the applicable standards
of the National Fire Protection Associa-
tion, in addition to the standards of any
authorities having jurisdiction. Failure
to do so may impair the performance
of these devices.
The owner is responsible for main-
taining their fire protection system
and devices in proper operating con-
dition. Contact the installing contrac-
tor or product manufacturer with any
questions.
Sprinkler
Identification
Number (SIN)
TY720
Technical
Data

Approvals

UL and C-UL Listed

Maximum Working Pressure

175 psi (12,1 bar)

Pipe Thread Connections

3/4 in. NPT

Discharge Coefficient

K=16.8 GPM/psi ½ (241,9 LPM/bar

Finish

Natural Brass

Physical Characteristics

Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Brass
Deflector. . . . . . . . . . . . . . . . . . . . . . . . . . Bronze
Compression Screw . . . . . . . . . . Stainless Steel
Hook. . . . . . . . . . . . . . . . . . . . . . . . . . . . .MONEL
Strut . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MONEL
Tensile Link . . . . . . . . . . . . . . . . . . . . . . . Copper
Button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Brass
Sealing Assembly . Beryllium Nickel w/TEFLON
Ejection Spring. . . . . . . . . . . . . . . . . . . INCONEL
Electrical Actuator . . . . . . . . . . . . . . . . . . . Brass
Electrical Actuator Housing. . . . . ABS/PC Resin
MARCH 2019
Worldwide
www.tyco-fire.com
Contacts

Temperature Rating

Temperature rating is determined by
the control unit and heat sensor paired
with the TY720 sprinkler.
For more information, refer to EAS-1
Electronically Activated Sprinkler
System for Storage Applications (Tech-
nical Data Sheet TFP360).

Installation

Install the Model TY720 Pendent Sprin-
kler in accordance with this section.
General Instructions
Take care handling the sprinkler during
installation to avoid damage to the
actuator and tensile link. Hold the
sprinkler by the frame and wrench flats,
and do not grasp the actuator, when
hand-tightening into position.
A leak-tight 3/4 in. NPT sprinkler joint
should be obtained by applying pipe-
thread sealant to the sprinkler threads
and wrench-tightening using only
½ )
the W-Type 21 Sprinkler Wrench, see
Figure 2.

Sprinkler Installation

Install the Model TY720 Pendent Sprin-
kler only in the pendent position as
follows:
Step 1. Apply pipe-thread sealant to
sprinkler threads.
Step 2. Hold the sprinkler by the frame
and wrench flats, and do not grasp or
apply force to the actuator and tensile
link. Insert and hand-tighten the sprin-
kler into the sprinkler fitting.
TFP325