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Chapter Four: Module Placement and Testing explains how to:
• Locate and test system components
• How to enter the Placement Test Mode
Do not permanently mount any of the components until they have been tested!
4 A: Locating the Controller and Sounders
The components of the WLS900 System may be located almost anywhere on the premises.
Only the following guidelines need to be observed:
• Locate the Controller in as central a location as possible
• Locate the Controller in as elevated a location as possible
• If locating the Controller in a basement, mount the Controller as high and as close to
underside of the first floor as possible
• Avoid locations that are subject to extreme temperature variations. Avoid locations that may
be subject to excessive cold (such as an unheated garage), or excessive heat (such as an
attic). Refer to 1 B: Components, for the operating temperature range of each component.
Generally, the WLS900 components are designed to operate within the temperature range
of 0°C to 50°C (32°F to 122°F).
The First Sounder is used to help ensure that the system’s radio transmissions reach the
Controller. The First Sounder should be located within 30 feet (approximately 9 meters) of
the Controller, but no closer than 5 feet (approximately 1.5 meters) to the Controller. A
Second Sounder, if installed, may be located almost anywhere desired.
Chapter 4: Module Placement and Testing
4 B: Locating System Components
Determine the location of the Controller and the First Sounder following the
guidelines noted in 4 A: Locating the Controller and Sounders.
Mount the Controller in the intended location.
Place the system components as near to their intended locations as
possible, but do not permanently install them yet.