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1. RECOMMENDED LOCATION OF DETECTORS
CO poisoning can happen anywhere in the building.
A CO detector should be installed on every floor, and
inside or near every area or room that may be
occupied.
Carbon monoxide at room temperature (68ºF) is
slightly lighter than air (density of CO 0.96716
compared to air). CO detectors should be mounted
five feet off floor, around eye level, for best operation
and to easily test detector and view the display.
Install a Commercial CO Detector:
1. On every floor, at least one CO detector for every
1000 square feet of vertically unobstructed
space.
2. Inside any room that is occupied by someone
who may be hypersensitive to CO, such as older
adults, young children, pregnant women, or
persons with medical conditions.
~ 5ft
CO
Detector
Hallway
Office
Office
Office
3. Near each exit from the building and any maintenance room that contains combustion
equipment, such that an alarm signal will be heard before anyone enters the building
or maintenance room.
For residential areas within a commercial building, carbon monoxide alarms that are
listed to the UL 2034 residential standard, like the Defender CA6150, should be installed
inside or near every sleeping area or room, according to the manufacturer’s instructions.
2. LOCATIONS TO AVOID
Do not install a CO detector:
1. Inside of a garage, cleaning supply
room, bath room, dusty area or
unconditioned space. The
detector’s operation temperature
range is 40
o
F to 100
o
F.
2. Within five feet of a combustion or
cooking appliance including a
furnace, boiler, water heater, space
heater, oven or range.
CO
Detector
3. Within five feet of a window or exterior door.
4. Within three feet of a room with a bathtub, shower, spa or washer/dryer.
5. Within one foot of a wireless device.
6. Where the alarm would be obstructed by furniture, drapes, etc.
7. Within a hazardous area, as defined in the National Electrical Code.
