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Once the source is located, correcting the problem may be as easy as opening a window, venting an appliance, backing a running car out of the garage a safe distance from living quarters and closing the garage door. It could be possible that a weather condition caused the reading and the condition may or may not happen again. Some CO conditions may start out as low level leaks but could develop into CO concentrations that could become harmful. If this happens, the CO alarm will detect the dangerous level and alarm, notifying you and others of the conditions. DO NOT ignore high concentration readings above 30 PPM or a CO alarming device that is in alarm. CO concentrations displayed below 30 PPM in "Peak Level" memory are for reference only and the accuracy of the concentration shown may not be as accurate as noted on page 24. To Reset the Peak Level Memory… Step 1. Press the peak level button. Step 2. With the peak level button still pressed, press the test/reset but ton for two seconds and release. The number on the display will turn to “0”. The memory has now been cleared and the alarm will begin monitoring for CO within a few minutes. 19 Carbon Monoxide Home Safety Tips What You Can Do... • Buy only appliances approved by a nationally recognized testing laboratory. • Choose fuel-burning appliances that can be vented to the outdoors, whenever possible. • Make sure appliances are installed according to manufacturer’s instructions and local building codes. Most appliances should be installed by professionals and should be inspected by the proper authority after installation • Have the heating system, vents, chimney and flue inspected and cleaned by a qualified technician every year. • Follow manufacturer’s directions for safe operation of all fuel-burning appliances. • Examine vents and chimneys regularly for improper connections, visible rust or stains. • Open a window when a fireplace or wood-burning stove is in use, and provide adequate outdoor air for furnace and water heater. • Notice problems that could indicate improper appliance operation: – Decreasing hot water supply – Furnace unable to heat house or runs constantly – Sooting, especially on appliances – Unfamiliar or burning odor – Yellow or orange flame • Be aware of the symptoms of carbon monoxide poisoning: – headaches, dizziness, weakness, sleepiness, nausea, vomiting, confusion and disorientation. • Recognize that CO poisoning may be the cause when family members suffer from flu-like symptoms that don’t disappear but improve when they leave home for extended periods of time. What You Should Not Do... • Never burn charcoal inside a home, garage, cabin, RV or camper. • Never install, service, or convert fuel-burning appliances from one type to another without proper knowledge, skills and tools. • Never use a gas range, oven, or clothes dryer for heating. • Never operate unvented gas-burning appliances, such as kerosene or natural gas space heaters, in a closed room. • Never operate gasoline-powered engines (like vehicles, motorcycles, lawn mowers, yard equipment or power tools) in confined areas such as a garage or basement, even if an outside door or window is open. • Never ignore a safety device when it shuts off an appliance. • Never ignore a CO alarm. 20 Carbon Monoxide Be Aware of the Warning Signs of Carbon Monoxide: Clues You Can See... • Streaks of carbon or soot around the service door of your fuel-burning appliances. • Ayellow or orange flame may indicate a problem with natural gas appliances. • Excessive rusting on flue pipes or appliance jackets. • Loose or missing furnace panel. • Moisture collecting on the windows and walls of furnace rooms. • Loose or disconnected vent/chimney, fireplace or appliance. • Small amounts of water leaking from the base of the chimney, vent or flue pipe. • Rust on the portion of the vent pipe visible from outside your home. • The absence of a draft in your chimney (indicating blockage). • Fallen soot from the fireplace chimney. • Loose, damaged or discolored bricks on your chimney. Clues You Cannot See... • Internal appliance damage or malfunctioning components • Improper burner adjustment • Hidden blockage or damage in chimneys Understand the Effects of Carbon Monoxide Exposure: Concentration of CO in the Air Approximate Inhalation Time and Symptoms Developed (ppm = parts per million) The maximum allowable concentration for continuous exposure for healthy adults in any 8-hour period, according to OSHA*. 50 ppm Slight headache, fatigue, dizziness, nausea after 2-3 hours. 200 ppm 400 ppm Frontal headaches within 1-2 hours, life threatening after 3 hours. 800 ppm Dizziness, nausea and convulsions within 45 minutes. Unconsciousness within 2 hours. Death within 2-3 hours. Headache, dizziness and nausea within 20 minutes. Death within 1 hour. 1,600 ppm Headache, dizziness and nausea within 5-10 minutes. Death within 25-30 minutes. 3,200 ppm Headache, dizziness and nausea within 1-2 minutes. Death within 10-15...
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