System Sensor 5622

The System Sensor 5622 Fixed Temperature and Rate-of-Rise (RoR) heat detector provides reliable heat detection for areas where a smoke detector shouldn't be placed. The RoR threshold for alarm is 15℉ (8.33℃) or more per minute. The fixed temperature sensor activates at 194°F (90°C) or higher.

With it's high fixed temperature alarm threshold, the System Sensor 5622 is best-suited for areas that are already hot. It is great for kitchen, garage, bathrooms and attics where dust and/or high humidity might cause a false alarm on a standard smoke detector. In these areas, you may be concerned about fumes, dust, steam, and/or cooking smoke causing false alarms on photoelectric smoke detectors. The 5622 Heat Sensor also offers rate-of-rise detection, and it will respond to temperature increases of 15°F (~8.3°C) or higher per minute. Overall, this device is ideal for use in areas that are already very hot, while also being unsuitable for a traditional smoke detector because of one or more underlying concerns.

Please note that the fixed temperature portion of the 5622 is single-use, and you must replace the device if that portion of the sensor is triggered. However, the rate-of-rise portion of the 5622 is self-restoring, and the sensor can be reused once the temperature returns to normal. When testing the sensor, make sure to only activate the rate-of-rise portion, and do not attempt to activate the fixed-temperature sensor. While the fixed temperature activation threshold of 194°F (90°C) is difficult to achieve by accident, be careful when testing, as needing to replace the sensor prematurely is inconvenient.

Mounting hardware for the System Sensor 5622 comes included. The device measures 4.57" in diameter, and it has a base height of 1.69". It weighs 6 ounces. The sensor can reliably monitor a 50-foot by 50-foot area with up to a 10-foot ceiling. This is a dual-circuit device that has two (2) Normally Open (NO) outputs. Using a NO configuration is very commonplace for heat detector devices like the 5622. In the case of the 5622, both of its NO circuits behave in the same manner. The first circuit is an alarm circuit that is used when the 5622 is connected to an alarm panel.

The second NO circuit for the 5622 is used for connecting an auxiliary device, such as an access control system. When used in this manner, a short provided via the auxiliary output can tell the access control system to automatically unlock a door so that building occupants can vacate. This could also be used to meet certain fire codes for the building. Alarm Grid advises users to review the Limitations of Fire Alarm Systems when working with any fire device, including heat detectors that are not suitable for life-safety. The Limitations of Fire Alarm Systems document is provided by System Sensor to help ensure the safety of all building occupant end-users.

As a Normally Open (NO) device, it is strongly recommended that the System Sensor 5622 is used on an alarm circuit that requires the use of end-of-line resistors (EOLRs) for supervisory purposes. You may need different resistor values depending upon the alarm system you are using, so make sure to check the documentation of your system to see what is required by your alarm panel. For a NO device like the 5622, an EOLR is wired in parallel across the terminals for the final device in the circuit. If you have multiple 5622 devices in use, then you can wire them all to a single panel zone. The EOLR will go at the final 5622 device in the circuit. When adding the EOLR, just connect it across the two (2) heat detector terminals for the last in-line device. Alternatively, if you choose to have each 5622 device at a separate system zone, then each 5622 should have its own resistor, again installed in parallel across its two (2) heat detector wire terminals. Remember that heat detectors like the 5622 are mechanical devices that do not require any power as part of their setup.

If you're looking for a heat detector with similar features to the System Sensor 5622, but you only need a single alarm circuit, take a look at the System Sensor 5602. It has the same rate-of-rise and fixed heat temperature thresholds, with only a single normally open contact circuit. You might also check out the System Sensor 5601P. The 5601P is a single-circuit heat sensor that has a lower fixed temperature activation point of 135℉ (57℃).

Specifications

• Sensor Type: Hardwired Heat
• Number of Circuits: Dual Normally Open (NO) Circuits
• Fixed Temperature Threshold: 194℉ (90℃), Non-Restoring Single Use
• Rate-of-Rise Threshold: 15℉ (~8.3℃) or Higher Rise Per Minute, Self-Restoring Multi-Use
• UL Maximum Spacing (10-foot ceiling): 50' x 50' (15.2m x 15.2m)
• Operating Voltage/Contact Ratings (Resistive): 6 - 125 VAC / 3A ; 6 - 28 VDC / 1A ; 125 VDC / 0.3A ; 250VDC / 0.1A
• Maximum Installation Temperature: 150℉ (65.6℃)
• Operating Humidity: 5 to 95% Relative Humidity Non-Condensing
• Wire Gauge Supported by Terminals: 14 - 22 AWG
• Back Box Mounting: 3.5" octagonal ; 4" octagonal ; Single Gang ; 4" square with a square to round plaster ring
• Dimensions (w/Mounting Bracket): Diameter: 4.57" (11.6cm) ; Height: 1.69 inches (4.3cm)
• Weight: 6 oz. (170g)
• SKU: BK-5622