SECTION 5 – INSTALLATION
2014-MAY-01 REV. 01 PAGE 5-11
DETECTION CIRCUIT CABLES (Continued)
Verify cable route from the control module to the detection
component end points conforms to the following rules (see
Figure 5-30):
• No Double Branching
• No EOL Devices on end of branch
• Branch must end with Detection Circuit Branch Terminator or
EMA
• If used, EMAs must be first component(s) on circuit
• Each EMA must be on a single use branch
• Linear Detector may be anywhere in the main trunk after the
EMA
• Main detection trunk must be terminated with EOL Device
FIGURE 5-30
SAMPLE - CORRECT DETECTION CIRCUIT INSTALLATION
009192
Install Detection Circuit using the following rules:
1. An Electric Manual Actuator (EMA), if used, must be
installed prior to any other detection device. Install a Detec-
tion Circuit Tee and required length of Detection Circuit
Cable. See Figure 5-31.
2 Install each EMA on a separate branch (only one device on
a branch). See Figure 5-31.
3. Spot Thermal detectors can be installed in main trunk of
detection circuit or on a branch circuit using a Detection
Circuit Tee and Detection Circuit Cable. If installed on a
branch circuit, a Detection Circuit Branch Terminator (Part
No. 439398) must be connected to the last detector. See
Figure 5-32.
CAUTION
Do not terminate any branch with an EOL Device. Use
Branch Terminator only.
4. The Linear Detector may be installed anywhere in the main
detection circuit trunk after the EMA. If the last device, the
Linear Detector is terminated with an EOL Device. See
Figure 5-33.
FIGURE 5-31
DETECTION CIRCUIT - EMA
009193
FIGURE 5-32
DETECTION CIRCUIT – SPOT THERMAL DETECTORS
009192
FIGURE 5-33
DETECTION CIRCUIT - LINEAR DETECTOR
009224
Review complete installation to verify correctness. If any
of the following INCORRECT INSTALLATION examples are
found adjust as needed.
CHECKFIRE 110
Detection and Actuation System
MUST INSTALL
EMA(S) (IF
USED) PRIOR TO
OTHER DEVICES
BRANCH
TERMINATOR
BRANCH
CIRCUIT
INSTALLATION
MAIN TRUNK
INSTALLATION
EOL DEVICE
END OF
MAIN TRUNK
