SIGA2-HRS Intelligent Fixed-Temperature and
Rate-of-Rise Heat Detector Installation Sheet
Description
The Signature Series model SIGA2-HRS Intelligent Fixed-
Temperature and Rate-of-Rise Heat Detector is an intelligent
device that contains a rate-of-rise and fixed-temperature heat
sensor to detect fire. The heat sensor monitors the
temperature of the surrounding air and the detector analyzes
the data from the sensor to determine whether to initiate an
alarm. The rate-of-rise heat function quickly detects a fast,
flaming fire. The fixed-temperature heat function detects fire
when the air temperature near the detector exceeds the alarm
point.
LED indicator.
The LED indicator (see Figure 1 below)
displays the following states:
•
Normal: Green LED indicator flashes, no action.
•
Alarm/active: Red LED indicator flashes, evacuate the
area.
•
Stand-alone alarm: Red LED indicator turns on, evacuate
the area.
Figure 1: SIGA2-HRS features
3
1
2
1. Tamper-resist lever arm on base
2. Access slot for tamper-resist mechanism
3. LED indicator
Installation
Notes
•
This detector does not operate without electrical power. As
fires frequently cause power interruption, discuss further
safeguards with the local fire protection specialist.
•
This detector does not sense fires in areas where heat
cannot reach the detector. Heat from fires in walls, roofs,
or on the opposite side of closed doors may not reach the
detector.
•
This heat detector by itself does not provide life safety
protection. Use this detector with ionization or
photoelectric smoke detectors, or both.
•
This detector does not detect oxygen levels, smoke, toxic
gases, or flames. Use this device as part of a broad-based
life safety program which includes a variety of information
sources pertaining to heat and smoke levels,
extinguishment systems, visual and audible devices, and
other safety measures.
•
Independent studies indicate that heat detectors should
only be used when property protection alone is involved.
Never rely on heat detectors as the sole means of fire
protection.
•
To ensure proper operation, store the detector within the
recommended ranges. Allow the detector to stabilize to
room temperature before applying power.
•
The dust cover (supplied) must remain on the detector
during installation and be removed prior to commissioning
and service. The dust cover is not a substitute for
removing the detector during new construction or heavy
remodeling.
•
In Canada, install according to CAN/ULC-S524
Standard
for the Installation of Fire Alarm Systems,
CSA C22.1
Canadian Electrical Code
, and the local authority having
jurisdiction.
•
To permanently disable the tamper-resist mechanism prior
to placing the detector in difficult to reach locations, break
and remove the plastic lever arm from the base. See
Figure 1, item 1.
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