INSTALLATION INSTRUCTIONS
7-1-07
Page 12
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7
INSTALLATION INSTRUCTIONS
7.1 SCOPE
The Model 20/20MI-32-S-F is a self-contained Optical Flame Detector, designed for quick detection response in addition to standard
heat detection options. The Model 20/20MI-32-S-F flame detector is connected to the detection interface module, when used with
the CHECKFIRE automatic fire extinguishing systems for off-road vehicle protection. The detector can be a part of a more complex
system where many detectors and other devices are integrated through a common control unit. This chapter does not attempt to
cover all of the standard practices and codes of installation. Rather, it emphasizes specific points of consideration and provides some
general rules for qualified personnel. Wherever applicable, special safety precautions are stressed.
7.2 GENERAL CONSIDERATIONS
Very Important:
The detector should be aimed toward the center of the detection zone and have a completely unobstructed view of the protected
area. Whenever possible, the detector face should be tilted down at a slight angle to prevent the accumulation of dust and dirt. Do
not start an installation unless all conceivable considerations regarding detector location have been taken into account. To ensure
optimal performance and an efficient installation, the following guidelines should be considered:
A. SPACING AND LOCATION
The number of detectors and their locations in the protected area are affected by:
• Size of the protected area
• Obstructed lines of sight
• Cone of view of the detectors
B. ENVIRONMENT
• Dust, snow or rain can reduce the detectors sensitivity and require more maintenance activities.
• The presence of high intensity flickering of IR sources may affect sensitivity.
7.3 PREPARATIONS FOR INSTALLATION
Tools and equipment required for installation of detectors, brackets, modules, and interconnecting cabling will depend upon the
specific application.
1. Verify the appropriate Purchase Order. Record the Part No. and the Serial No. of the detectors and the installation date in the
appropriate Logbook.
2. Open the container package immediately prior to detector installation and visually inspect the detector.
3. Verify that all components required for the detector installation are readily available before commencing the installation
7.4 DETECTOR MOUNTING
The detector shipping assembly, Part No. 432480, contains a 20/20MI-32-S-F detector, detector bracket, and associated hardware.
See ANSUL CHECKFIRE SC-N Installation Manual, Part No. 432522, for detailed mounting information.
7.5 INSTALLATION
Refer to ANSUL CHECKFIRE SC-N Installation Manual, Part No. 423522, for detailed installation instructions.
