Table of Contents
- 1 ACI SL 2000 Duct Smoke Detector Suppliers in UAE
- 2 How the SL2000 Detects Smoke in a Moving Airstream
- 3 Key Features of the SL2000
- 4 Product Specifications at a Glance
- 5 Selecting a Sampling Tube for the Right Duct Width
- 6 Remote Accessories for Test and Reset Functions
- 7 Typical Applications for the SL2000 in UAE Facilities
- 8 Common Mistakes When Specifying Duct Smoke Detectors
- 9 Ordering Reference
- 10 Source the ACI SL2000 in the UAE and Gulf
ACI SL 2000 Duct Smoke Detector Suppliers in UAE
Smoke drawn into an HVAC duct does not stay in one room. Once fans and blowers pick it up, they can carry smoke and combustion products throughout a building far faster than the fire itself could ever spread on its own. Duct mounted smoke detectors exist specifically to catch that recirculation risk early, shutting down or signaling the air handling system before smoke is pushed into occupied spaces that would otherwise remain unaffected.
The ACI SL2000 duct smoke detector, manufactured by Automation Components, Inc. (ACI), a DwyerOmega brand, is built for exactly this duty across commercial, industrial, and residential HVAC systems. As a supplier of ACI instrumentation across the region, SWME Control Systems Trading LLC provides the SL2000 series along with matching sampling tubes and remote accessories to projects throughout the UAE, Qatar, Oman, Kuwait, and Bahrain.
How the SL2000 Detects Smoke in a Moving Airstream
The SL2000 uses a photoelectric detection head, drawing a continuous air sample from the duct through two tubes that protrude into the airstream. An exhaust tube of standard 7 inch length is included in the installation kit, while a separate sampling tube is selected and cut to match the actual duct width once it is known on site. This dual tube arrangement lets the unit sample air moving anywhere from 100 to 4,000 feet per minute, covering the airflow range typical of most commercial and industrial air monitoring applications.
Detection logic and relay switching are built to meet local requirements as well as NFPA regulations covering duct smoke detectors, and the unit carries UL and CUL listing along with CSFM and MEA approvals for jurisdictions that require them.
Key Features of the SL2000
1Photoelectric Detection Head
The photoelectric sensing element responds to smoke particles suspended in the duct airstream, providing early warning before combustion products spread further through the connected ductwork.
2Dual Alarm and Trouble Relay Contacts
The SL2000 provides two sets of 10A form C and one set of 2A form A alarm contacts, plus a dedicated 10A form C trouble contact that monitors for head removal and supply voltage failure, so a fault condition is reported just as reliably as a genuine alarm.
3Wide Supply Voltage Compatibility
The unit accepts 24 VAC or VDC, 115 VAC, or 230 VAC supply, simplifying integration into existing electrical infrastructure across different building types and regions without needing a dedicated transformer in most installations.
4Remote Accessory Output Terminals
Output terminals support remote horns, strobes, remote status indicators, and test or reset key switches and pushbuttons, so operators are not forced to climb up to the duct itself to acknowledge an alarm or run a routine test.
5Configurable Sampling Tube Length
Sampling tubes are available in 1, 2.5, 5, and 10 foot lengths, cut to match the duct being monitored, with a Fast Tube option supplied as sectional lengths that can be assembled on site to the correct size and remain UL recognized.
6Durable Enclosure Rated for Duct Environments
A grey plastic backbox with a clear plastic cover, molded from Makrolon 94V-0 material, houses the electronics in a NEMA 1 enclosure suited to the standard indoor duct mounting locations this device is designed for.
7Two Year Limited Warranty
The SL2000 series carries ACI's two year limited warranty, with full terms published in the front of ACI's Sensors and Transmitters catalog and on the manufacturer's workaci.com website.
8Multiple Agency Approvals
The SL2000 is UL and CUL listed under UL268A, UROX, and UROX7 (File number S2829), CSFM listed, and MEA accepted, covering the approvals most commonly requested by authorities having jurisdiction across UAE and Gulf projects.
Product Specifications at a Glance
| Parameter | Specification |
|---|---|
| Supply Voltage | 24 VAC/VDC, 115 VAC, or 230 VAC |
| Detection Head Type | Photoelectric |
| Air Velocity | 100 to 4,000 ft per minute |
| Alarm Relay Contacts | 2 sets form C at 10A, 115 VAC; 1 set form A at 2A |
| Trouble Relay Contacts | 1 set form C at 10A, 115 VAC |
| Operating Temperature (SL2000N) | 32°F to 158°F (0°C to 70°C) |
| Operating Temperature (SL2000P) | 32°F to 140°F (0°C to 60°C) |
| Maximum Humidity | 85 plus or minus 5% RH, non condensing, non freezing |
| Enclosure Rating | NEMA 1, grey plastic backbox with clear plastic cover |
| Conductor Size | Solid or stranded, number 12 to 22 AWG |
| Dimensions | 13.5 in L x 4.5 in W x 2.25 in H (342.9 x 114.3 x 57.15 mm) |
| Weight | 2.5 lbs (1.13 kg) |
Full specifications, dimensional drawings, and wiring details are available in the ACI SL2000 datasheet on request from our team.
Selecting a Sampling Tube for the Right Duct Width
General guidance for matching a sampling tube to duct width. Confirm exact requirements against the installation manual for each project.
Remote Accessories for Test and Reset Functions
Because a duct smoke detector is often mounted well above reach inside ceiling voids or plant rooms, ACI offers remote accessories from the MS Series and MSR50R Series that mount to a standard single or double gang electrical backbox. These provide audible and visual alarm indication along with remote test and reset functions, so building staff are not required to climb up to the duct itself every time the unit needs to be checked or reset. Authorities having jurisdiction frequently require one of these remote accessories where the detector is not already wired to a central fire system or a remote test station, similar to how remote switching and indication is specified for other critical monitoring points on a site.
Typical Applications for the SL2000 in UAE Facilities
- Air handling unit ductwork in commercial towers, hotels, and shopping malls
- Hospital and healthcare facility HVAC systems requiring documented smoke recirculation protection
- Industrial plant rooms and process buildings with ducted ventilation systems
- Residential tower central air systems serving multiple floors from shared ductwork
- Data centers and control rooms where smoke recirculation risk must be minimized
- Educational and government buildings subject to strict NFPA and local fire code compliance
Common Mistakes When Specifying Duct Smoke Detectors
Ordering Reference
| Model | Item Number | Description |
|---|---|---|
| SL2000P | 105792 | Smoke detector, multi application, photoelectric |
| FAST TUBE | 131201 | Package of three 24 inch sections, sectional sampling tube, UL recognized |
| STN 1.0 | 111653 | Sampling tube for 12 in or less duct width |
| STN 2.5 | 105793 | Sampling tube for 6 in to 2.5 ft duct width |
| STN 5.0 | 105794 | Sampling tube for 2.5 ft to 5.0 ft duct width |
| STN 10.0 | 105795 | Sampling tube for 5.0 ft to 10.0 ft duct width |
| WP2000 Enclosure | 106505 | Weatherproof enclosure, NEMA type 3R |
| 55000 335DCT | 152738 | Replacement photoelectric detector head |
| TG2000 | 128407 | Aerosol test gas |
| MSR 50RKA/W | 146753 | Remote with key, sounder, white double gang plate |
| MSR 50RKAV/W/C | 146754 | Remote with key, strobe, sounder, white double gang plate |
| MS KA/R | 111733 | Remote with key, LED for alarm, single gang plate |
Source the ACI SL2000 in the UAE and Gulf
SWME Control Systems Trading LLC supplies the ACI SL2000 duct smoke detector along with matching sampling tubes and remote accessories to customers across the UAE, Qatar, Oman, Kuwait, and Bahrain. Alongside gas and smoke detection, our team supports full life safety and monitoring packages, including wireless gas detection solutions for oil and gas and industrial sites.
Browse more of our detection and monitoring product notes on our Gas Detectors blog category, view our full gas and smoke detection product range, or explore additional application notes on our blog. For help confirming sampling tube sizing, remote accessory selection, or local approval requirements, reach out through our contact page.
