System Sensor D4120 4-wire photoelectric low-flow duct smoke detector

System Sensor D4120 4-wire photoelectric low-flow duct smoke detector

Used: the item was used, comes in generic packaging.

Description:
The InnovairFlex D4120 4-wire photoelectric duct smoke detector features a pivoting housing that fits both square and rectangular footprints and mounts to round or rectangular ductwork. This unit senses smoke in the most challenging conditions, operating in airflow speeds of 100 to 4,000 feet per minute, temperatures of –4°F to 158°F, and a humidity range of 0 to 95 percent (noncondensing). A plug-in sensor head offers improved false alarm immunity and simple installation, testing, and maintenance. An improved cover design isolates the sensor head from the low-flow feature for simple maintenance.
The InnovairFlex™ Series are the only duct smoke detectors flexible enough to fit configurations from square to rectangular and everything in between.
Features
– 4-Wire Photoelectric, integrated low-flow technology
– Air velocity rating from 100 ft/min to 4,000 ft/min (0.5 m/s to 20.32 m/sec)
– Versatile mounting options: square or rectangular configuration
– Plug-in sensor offers superb false alarm immunity and the latest sensor technology
– Broad ranges for operating temperature (–4°F to 158°F) and humidity (0% to 95% non-condensing)
– Patented sampling tube installs from front or back of the detector with no tools required
– Increased wiring space with a newly added ¾-inch conduit knockout
– One easy-access Test/Reset button and improved LED status
– Patented interconnect feature for multi-fan shutdown
– New high contrast terminal designations
– Built-in short circuit protection from operator wiring errors
– Field selectable settings for configuring the detector
– Two DPDT Form-C relay contacts
– 24 VAC/DC or 120 VAC

Replaces: DH100ACDCP

Specifications:
Brand: System Sensor
Product Type: Smoke Detector
Input Voltage: 120V AC, 24V DC, 29V DC
Input Voltage (V AC): 120
Model: D4120
SKU: D4120

The System Sensor D4120 is a specialized smoke detector designed for use in ductwork or air handling systems. It serves a specific purpose in fire protection and HVAC applications. Here are its intended use and key advantages:

Intended Use is Duct Smoke Detection: The primary intended use of the System Sensor D4120 is to detect the presence of smoke within heating, ventilation, and air conditioning (HVAC) ductwork. It is typically installed in commercial buildings, industrial facilities, and public spaces where early smoke detection is critical for fire safety.

Advantages:

1. Early Smoke Detection: The D4120 is designed to detect smoke in HVAC ducts at an early stage. Early detection is crucial for initiating timely fire alarm and suppression systems, potentially preventing the spread of smoke and fire to other areas of a building.
2. Sampling Tube Technology: This smoke detector utilizes a sampling tube or pipe that draws air from the ductwork to the detector for analysis. The sampling tube design allows for accurate detection and reduces the risk of false alarms.
3. Sensitivity Adjustment: Installers can adjust the detector’s sensitivity to meet the specific requirements of the installation, ensuring that it responds appropriately to varying smoke levels.
4. Airflow Monitoring: Some models of the D4120 include airflow monitoring capabilities, which can help ensure proper operation of the HVAC system and alert building operators to issues like filter blockages or fan failures.
5. Compatibility: The D4120 is compatible with various fire alarm control panels and systems, making it easy to integrate into existing fire protection systems.
6. Remote Test Capability: Some models allow for remote testing, simplifying the testing and maintenance process by enabling technicians to check the detector’s functionality without direct access.
7. Tamper Resistance: The detector is designed to resist tampering, helping maintain its reliability and integrity.
8. Optional Relay Outputs: Some models feature relay outputs that can be used to activate other systems or devices in response to a smoke detection event.
9. Easy Installation: The D4120 is designed for straightforward installation in HVAC ducts, ensuring that it can be seamlessly integrated into building systems.
10. Low Maintenance: Once properly installed, the detector generally requires minimal maintenance, contributing to long-term reliability.

In summary, the System Sensor D4120 smoke detector is specifically designed for duct smoke detection in HVAC systems. Its key advantages include early smoke detection, sensitivity adjustment, compatibility with fire alarm systems, and features like airflow monitoring and tamper resistance. These attributes make it a valuable component of fire protection systems in commercial and industrial settings.

NL26 E2