Conspec’s parking garage carbon monoxide detector system initiates exhaust fans and alarms when Carbon Monoxide (CO) levels become unsafe. Easy installation and setup make this detector the preferred choice for CO detection in enclosed parking areas.
The Conspec 911154-1 Ventilation Fan Controller is designated for enclosed parking areas where carbon monoxide gases must be continually ventilated or have a gas detection device installed. Before an unsafe level of carbon monoxide is reached, the detector will signal ventilation fans to cycle and operate until the atmosphere in the area has returned to normal.
Multiple gas detectors can be installed and easily connected without the need for a central panel by a simple series connection of the controllers. LED indicator lights clearly show the status of the detector and a large LCD display continually shows the CO levels being monitored. In the event of a power loss or malfunction, the controller activates the ventilation system.
Electricity and heating expenses can be dramatically reduced due to the ventilation fans operating only when needed as opposed to continuously running. Energy savings of up to 85% can be achieved and in most cases, the return on the cost of the system is realized in one year or less!
| Feature | Benefits |
|---|---|
| Configured for Automation | Automatically activates exhaust fans and alarms when CO reaches unsafe levels to protect occupants. |
| Energy Efficient Design | Continuously monitors CO and runs ventilation only when needed, reducing fan runtime and energy use. |
| Reduces Operating Costs | Delivers significant energy savings (up to 85%) with typical payback in about one year. |
| Engineered for Vehicle Areas | Purpose-built for enclosed garages and vehicle service areas requiring continuous CO control. |
| Stand-Alone System | Series wiring enables easy expansion without a central panel for large facilities. |
| Protects Against Outages | Fail-safe operation automatically engages ventilation during power loss or system faults. |
| Carbon monoxide (CO) | |
|---|---|
| Sensor Technology | Electrochemical (EC) |
| Range | 0–500 ppm |
| Life Expectancy | 7 years |
| Response Time | T90 < 30 seconds |
| Electrical | |
|---|---|
| Operating Voltage | 3 W @ 24 VAC |
| Power Consumption | 0.1 A maximum |
| Mechanical | |
|---|---|
| Enclosure | NEMA 4X non-metallic (UL & CSA approved) |
| Dimensions | 4.5 × 4.0 × 2.5 in (114 × 102 × 64 mm) |
| Weight | 1.2 lb (544 g) |
| Mounting | Mounts to a standard 4×4 electrical junction box (mounting plate included) |
| Conduit Entry | 1/2 in (12.7 mm) |
| Display | 2-line, 8-character LCD |
| Environmental | |
|---|---|
| Operating Temperature | -4°F to +122°F (-20°C to +50°C) |
| Operating Humidity | 10–90% RH non-condensing |
| Temperature Compensation | Full range |
| I/O Capabilities | |
|---|---|
| Output Signals | 2 × dry contact SPDT relays (fan, alarm) rated 2 A, 30 VDC |
| Alarms | |
|---|---|
| Alarm Set Point | 4 different alarm set points |
| Onboard Alarms | 80 dB @ 3 ft (0.9 m) |
| Enclosed Parking Garages |
| Vehicle Maintenance Facilities |
| Boiler / Mechanical Rooms |
| Factories / Warehouses |
| Bus Terminals & Depots |
| Tunnels |
| Car Dealerships |
| Fire / Police Stations |
| City of Los Angeles Approved |
| P1879-XX-YYYY | Calibration Kit |
| P1880 | Calibration Gas |
| 911154-SN | Replacement sensor |
| 911154-PS | Power supply |
| 911118M | Infrared handheld programmer |
Looking for dependable gas detection and control solutions at the right price, without the long wait? Conspec offers industry-leading turnaround times and competitive pricing on all of our safety solutions. Please share some information about your project and a member of our team will respond at their earliest convenience.
"*" indicates required fields
