107
Warranty and Warning Information
disability, inability to reach the device in time, unfamiliarity with the correct operation, or related
circumstances.
Insufficient Time
There may be circumstances when a
MGC System
will operate as intended, yet the
occupants will not be protected from the emergency due to their inability to respond to the
warnings in a timely manner. If the system is monitored, the response may not occur in time
enough to protect the occupants or their belongings.
Moreover, smoke detectors may not provide timely warning of fires caused by carelessness or
safety hazards such as smoking in bed, violent explosions, escaping gas, improper storage of
flammable materials, overloaded electrical circuits, children playing with matches or arson.
Power Failure
Some
MGC System
components require adequate electrical power supply to operate.
Examples include: smoke detectors, beacons, HVAC, and lighting controllers. If a device
operates only by AC power, any interruption, however brief, will render that device inoperative
while it does not have power. Power interruptions of any length are often accompanied by
voltage fluctuations which may damage
MGC Systems
or other electronic equipment. After a
power interruption has occurred, immediately conduct a complete system test to ensure that
the system operates as intended.
Battery Failure
If the
MGC System
or any device connected to the system operates from batteries it is
possible for the batteries to fail. Even if the batteries have not failed, they must be fully
charged, in good condition, and installed correctly.
MGC Systems
with wireless transmitters use replaceable batteries. The system is designed
to provide several years of battery life under normal conditions. The expected battery life is a
function of the device environment, usage and type. Ambient conditions such as high humidity,
high or low temperatures, or large temperature fluctuations may reduce the expected battery
life. While each transmitting device has a low battery monitor which identifies when the
batteries need to be replaced, this monitor may fail to operate as expected. Regular testing
and maintenance will keep the system in good operating condition.
Physical Obstructions
Motion sensors that are part of a
MGC System
must be kept clear of any obstacles which
impede the sensors’ ability to detect movement. Signals being communicated by a
MGC
System
may not reach the receiver if an item (such as metal, water, or concrete) is placed on
or near the radio path. Deliberate jamming or other inadvertent radio signal interference can
also negatively affect system operation.
Moreover,
MGC Systems
may fail to operate as intended if motion, heat, or smoke sensors
are not triggered. Sensors in a fire system may fail to be triggered when the fire is in a
chimney, walls, roof, or on the other side of closed doors; and, smoke and heat detectors may
not detect smoke or heat from fires on another level of the residence or building. In this
situation the control panel may not alert occupants of a fire.
Sensors in a nurse call system may fail to be triggered when movement is occurring outside of
the motion sensors’ range. For example, if movement is occurring on the other side of closed
doors or on another level of the residence or building the motion detector may not be
triggered. In this situation the central controller may not register an alarm signal.
Other Impairments
Similarly, Alarm Notification Appliances such as sirens, bells, horns, or strobes may not warn
or waken a sleeping occupant if there is an intervening wall or door. It is less likely that the
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