Smoke Detectors for HVAC Systems
Detect the presence of smoke in ducts and shut down HVAC units to avoid circulation. These sensors and controllers have standard RJ45 connections, so they work with most alarm systems and quickly snap in without needing to connect individual wires to terminals. UL and C-UL listed as well as FM and MEA approved, they meet strict safety standards. Choose from a sensor, controller, or sensor and controller unit.
Sensors measure rapid changes in air flow from smoke and fire but won’t register dust and debris, so they won’t cause a false alarm.
Controllers send signals from your sensor to a fire alarm control panel, which closes HVAC dampers when smoke is detected. Controllers can be installed up to 15 ft. away from your sensors and connected with cable. Connect up to two sensors per controller to monitor two sections of ductwork.
Sensor and controller units come with one controller and one sensor. Connect another sensor to cover another spot in your HVAC system.
Sensors require sampling tubes (sold separately) to bring in air from the duct. Mount the sampling tube inside the duct and connect it to the sensor on the outside of the duct by drilling a hole with the included template. For duct up to 36" wide, the sampling tube’s length should be 2/3 the width of the duct.
If your smoke detectors are hard to access, use remote test stations (sold separately) to check that they’re working properly from a convenient location.
| Lg. | Wd. | Dp. | Max. Number of Tandem Sensors | Wire Connection Type | Output Voltage  | Input Voltage | Temp. Range, °F | Mounting Hardware Included | Specifications Met | Each | |
| 8 3/4" | 5 1/2" | 1 7/8" | 30 | Screw Terminals | 18V DC | 24V AC, 24V DC, 120V AC, 230V AC | 0° to 155° | Yes | C-UL Listed, FM Approved, UL Listed | 0000000 | 0000000 |
| Lg. | Wd. | Dp. | For Max. Number of Sensors | Max. Number of Tandem Controllers | Wire Connection Type | Output Voltage | Input Voltage | Temp. Range, °F | Mounting Hardware Included | Specifications Met | Each | |
| 6 3/4" | 5 1/2" | 1 7/8" | 2 | 15 | Screw Terminals | 18V DC | 24V AC, 24V DC, 120V AC, 230V AC | 0° to 155° | Yes | C-UL Listed, FM Approved, UL Listed | 0000000 | 0000000 |
| Lg. | Wd. | Dp. | Max. Number of Tandem Controllers | Max. Number of Tandem Sensors | Wire Connection Type | Output Voltage | Input Voltage | Temp. Range, °F | Mounting Hardware Included | Specifications Met | Each | |
| 14 1/2" | 5 1/2" | 1 7/8" | 15 | 30 | Screw Terminals | 18V DC | 24V AC, 24V DC, 120V AC, 230V AC | 0° to 155° | Yes | C-UL Listed, FM Approved, UL Listed | 0000000 | 0000000 |
Check that your HVAC smoke detector is working properly. Wire these test stations to your smoke detector controller to test difficult to access smoke detectors from a convenient location. Indicator lights show if your smoke detector is powered on, if it senses smoke, and if its sensors are too dirty to detect smoke and need cleaning. These test stations activate with the turn of a key so you don’t turn them on by accident.
| Actuator Style | Switch Starting Position | No. of Terminals | Industry Designation | Voltage | Temp. Range, °F | Wire Connection Type | Wd. | Ht. | Mounting Hardware Included | Specifications Met | Each | |
| Key | 1 Off (Normally Open) | 5 | SPST-NO | 24V AC, 24V DC, 120V AC, 230V AC | 32° to 130° | Screw Terminals | 3" | 4 3/4" | Yes | C-UL Listed, FM Approved, UL Listed | 0000000 | 000000 |