Macurco GD-2A Operation Manual
REV – 1.0.0
[34-8706-2454-0 ]
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Use Instructions and Limitations
The GD-2A is a low voltage (12-24 VAC or VDC) electronic detector of combustible, heating type
gases, that has been evaluated by ETL for methane (natural gas) and propane (LP) gas. The GD-
2A is designed for connection to Fire Alarm/Burglary Control Panels. The GD-2A has a SPDT
Alarm relay, for connection to control panels or other devices. The GD-2A does NOT detect carbon
monoxide. The GD-2A does not have an internal audible sounder.
WARNING
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
.
2.1
Use For
The GD-2A is an electronic detector of combustible, heating type gases (natural gas and propane),
designed for connection to alarm control panels. It can operate on 12 to 24 VDC power from
standby or interruptible panel power or be powered separately. The GD-2A is intended for
installation in buildings in non-hazardous locations such as residences, retail stores, office
buildings, and institutional buildings.
WARNING
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 Macurco Technical
Service.
2.2
Do NOT use for
The GD-2A is NOT intended for use in industrial applications such as refineries, chemical plants,
etc. The GD-2A does NOT detect carbon monoxide. Do NOT mount the GD-2A in a corner. The
GD-2A is designed for connection to Fire Alarm/Burglary Control Panels. Do not connect the GD-
2A to Fire Alarm Circuits, or Burglar Alarm or other signals. The Alarm Control Panel must be
dedicated to gas detection or have alarm devices that provide a distinctive alarm for gas detection.
Do NOT mount the GD-2A in kitchens or bathrooms - alcohol’s, ammonia, cleaning solvents, paint
thinner, gasoline vapors, and aerosol propellants (aerosol cans such as hair spray usually contain
a combustible gas) may cause nuisance alarms.
WARNING
GD-2A may not function effectively below 32 °F or above 120°F. Using the detector
outside of this temperature range may adversely affect product performance and
result in sickness or death.
