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3M Occupational Health and Environmental Safety Division 3M Center, Building 0235-02-W-70 St. Paul, MN 55144-1000 Printed in U.S.A. 3M and Macurco are trademarks of 3M. © 2010 3M Company. All rights reserved. 98-0060-0162-6/2 34-8704-8986-0 W WARNING Each person installing or using this equipment must read and understand the information in these User Instructions before use. Installation of this equipment by untrained or unqualified persons, or use that is not in accordance with these User Instructions may adversely affect product performance and result in sickness or death. For proper use see User Instructions or call 3M in U.S.A., 1-800-243-4630. In Canada, call Technical Service at 1-800-267-4414. The GD-2A is an electronic detector of combustible gases. The GD-2A is designed for connection to UL Listed Fire Alarm/Burglary Control Panels. This combustible gas detector has been evaluated by UL for methane (natural) and propane (LP) gas. It is NOT designed to detect smoke, fire or carbon monoxide. Once the GD-2A is operational (ARMED) the green light will be on continuously. If gas is detected the red LED (ALARM) turns on and the alarm relay activates to indicate the alarm condition at the control panel. In the configuration, as shipped from the factory, the GD-2A is self- restoring meaning that when the air clears of gas, the red light turns off and the relay switches to its normal state. If you suspect a gas leak, alert others and have everyone leave immediately. • Do not light a match. Do not turn lights on or off. Do not use any electrical switches, including a garage door opener. Do not use the telephone, including cell phones. The electrical current in a phone, light or electric switch is enough to spark an explosion. • Go outside to a safe place away from the suspect area and only then call the gas company for help or in an emergency call 911. • Stay away from your home until someone in authority tells you it is safe to return. GENERAL SAFETY INFORMATION INTENDED USE The GD-2A is a low voltage (12-24 VAC or VDC) electronic detector of combustible, heating type gases. The GD-2A is designed for connection to UL Listed Fire Alarm/ Burglary Control Panels. NOTE: Any time the words “Control Panel” or “Alarm Panel” or “Alarm Control Panel” are used in these instructions, they refer to a UL Listed Fire Alarm/Burglary Control Panel. Alarm control panels that work on 12 or 24 VDC can provide battery backup to the GD-2A detectors. This combustible gas detector has been evaluated by UL for methane (natural gas) and propane (LP) gas. It is NOT designed to detect smoke, fire or carbon monoxide. LIST OF WARNINGS AND CAUTIONS • Each person using this equipment must read and understand the information in these User Instructions before use. Use of this equipment by untrained or unqualified persons, or use that is not in accordance with these User Instructions, may adversely affect product performance and result in sickness or death. • Use only for monitoring the gas which the sensor and detector are designed to monitor. Failure to do so may result in exposures to gases not detectable and cause sickness or death. For proper use, see supervisor or User Instructions, or call 3M in U.S.A., 1-800-243-4630. In Canada, call Technical Service at 1-800-267-4414. • GD-2A may not function effectively below 32.F (0.C) or above 120.F (50.C). Using the detector outside of this temperature range may adversely affect product performance and result in sickness or death. • This detector helps monitor for the presence and concentration level of certain specified airborne gases. Misuse may produce an inaccurate reading, which means that higher levels of the gas being monitored may be present and could result in overexposure and cause sickness or death. For proper use, see supervisor or User Instructions, or call 3M in U.S.A., 1-800-243-4630. In Canada, call Technical Service at 1-800-267-4414. • The GD-2A is not designed to measure compliance with Occupational Safety and Health Administration (OSHA) commercial or industrial standards. • When the unit is powered up it performs a self-test during which the green LED light will blink for a period of one and one half to two minutes. Afterward, the green LED light will turn on continuously to indicate the unit is in normal operation (ARMED). If the self-test fails or the green LED light does not turn on continuously do not use. Failure to do so may adversely affect product performance and result in sickness or death. • Immediately exit the environment if there is an alarm condition on the detector. Failure to do so may result in sickness or death. • This detector will only indicate the presence of combustible gas at the sensor. Combustible gas may be present in other areas. Accommodation spaces should be well ventilated when household cleaning supplies or similar contaminants are used. • Do not cover or obstruct visual alarm LED. Doing so may adversely affect product performance and result ...