SECTION 4 – SYSTEM DESIGN
UL EX3470 ULC EX3470
2014-SEP-01 REV. 11 PAGE 4-73
R-102 Restaurant Fire Suppression Manual
DETECTION SYSTEM REQUIREMENTS (Continued)
Electric Thermal Detector
When electric thermal detection is used, the detection circuit
must be supervised in accordance with NFPA 17A, Standard for
Wet Chemical Extinguishing Systems. Electric thermal detectors
must be used in conjunction with either the AUTOPULSE 542R
Control Panel (Part No. 433607) or the AUTOPULSE Z-10
Control Panel (Part No. 430525), and the 24VDC Regulated
Release Assembly.
Note:
Consider the rate of temperature increase in the location
chosen for the detector when using electric thermal detection.
A transient rush of warm air up to 40 °F (4 °C) per minute may
expand the shell, but not enough to trigger the AUTOPULSE
control panel. Temperature increases over 40 °F (4 °C) per
minute however, may initiate an alarm condition in the control
panel.
After determining the maximum ambient temperature at the
thermal detector location, select the correct thermal detector
according to the temperature condition chart in the “System
Components” section.
MANUAL PULL STATION REQUIREMENTS
A remote manual pull station allows the R-102 system to be
manually operated at some point distant from the regulated
release assembly. The pull station should be installed at a height
of 42-48 in. (1067-1219 mm), in accordance with the require
-
ments of the American Disabilities Act (ADA) and the Authority
having Juris dic tion. and located in the path of egress. The pull
station is the only source of manual actuation of the regulated
release assembly.
The total length of the cable used for each manual pull station
within a system must not exceed 150 ft (45.7 m).
The maximum number of pulley elbows that may be used per
pull station is 20.
One pulley tee is allowed per cable system.
The maximum length of cable from the AUTOMAN to a pull
station is 150 ft (45.7 m) with a maximum of 20 pulley elbows
used per side of the tee. As the tee is located farther from the
AUTOMAN, the 150 ft (45.7 m) maximum must be observed but
as pulley elbows are placed between the AUTOMAN and the
tee, they must be deducted from the available pulley elbows (20)
allowed on each side.
Example: If 10 pulley elbows are placed between the AUTOMAN
and the pulley tee, the maximum available pulley elbows left for
use on each side of the tee is 10 per side. See Figure 4-144
for three different examples. (
Note:
Both must be gas valves or
both must be pull stations. Mixing is not allowed.)
FIGURE 4-144
004907
Manual Pull Station – Part No. 435960 or 434618
Parts that may be used for installation of a metal stamped
remote manual pull station are:
Description
Part No.
Remote Manual Pull Station Assembly*
435960
Remote Manual Pull Station Assembly
434618
Pulley Elbow
423250
Pulley Elbow
415670
Pulley Tee
427929
*Assembly includes parts listed below:
1/16 in. Stainless Steel Cable 50 ft (15.2 m)
15821
Oval Press-To-Crimp Sleeves
4596
Glass Break Rod (1)
4834
AUTOMAN
GAS VALVE OR
MANUAL PULL
GAS VALVE OR
MANUAL PULL
12 IN.
(304 mm)
12 IN.
(304 mm)
149 FT (45.4 m) AND 20 PULLEY ELBOWS BETWEEN
AUTOMAN AND TEE
TEE CLOSE TO GAS VALVES OR MANUAL PULL (EXAMPLE)
AUTOMAN
GAS VALVE OR
MANUAL PULL
GAS VALVE OR
MANUAL PULL
12 IN.
(304 mm)
149 FT (45.4 m) AND 20 PULLEY ELBOWS MAXIMUM
PER EACH SIDE OF TEE
PULLEY TEE
TEE CLOSE TO AUTOMAN (EXAMPLE)
AUTOMAN
GAS VALVE OR
MANUAL PULL
75 FT (22.8 m) AND
10 PULLEY ELBOWS
75 FT (22.8 m) AND
10 PULLEY ELBOWS
75 FT (22.8 m) AND 10 PULLEY ELBOWS
GAS VALVE OR
MANUAL PULL
TEE HALFWAY BETWEEN AUTOMAN AND GAS VALVES OR MANUAL PULL (EXAMPLE)
PULLEY TEE
PULLEY TEE