7. 1 95-86662
APPLICATIONS
• Turbine enclosures
• Confined spaces and dirty environments
• Fuel cells
• Gas compressors
• Hydraulic or lube pump locations
• Power generation
• Gas station islands
• Miscellaneous industrial processes
• Anywhere fire can occur
IMPORTANT SAFETY NOTES
WARNING
Do not open the junction box in a hazardous area
when power is applied.
CAUTION
The wiring procedures in this manual are intended
to ensure proper functioning of the device under
normal conditions. However, because of the
many variations in wiring codes and regulations,
total compliance to these ordinances cannot be
guaranteed. Be certain that all wiring complies
with local ordinances. If in doubt, consult the
authority having jurisdiction before wiring the
system. Installation must be done by a properly
trained person.
CAUTION
To prevent unwanted actuation or alarm,
extinguishing devices must be disabled prior to
performing system tests or maintenance.
CAUTION
The detectors are to be installed in places where
the risk of mechanical damage is low.
NOTE
Repair of the internal and external threaded joints
is not intended.
INSTALLATIO N
NOTE
The junction box must be electrically connected to
earth ground. Internal and external earth ground
terminals are provided. For AEx (United States
Zone) installations, the internal ground terminal
shall be used for the equipment grounding
connection. The external terminal can be used
for supplementary bonding where local codes
permit or require.
DETECTOR LOCATION
Model HD detectors are precision temperature
detectors. They must be mounted in an area (normally
a ceiling) so that:
1. The detector spacing complies with both system
requirements and requirements of the local agency
having jurisdiction.
2. The thermal air path to the shell is not obstructed.
Spacing per UL, FM, and ULC is shown in Table
1. Distances given are between units on smooth
ceilings. Distances from partitions or walls are half
that shown. To assure that all spacing requirements
are met, consult the authority having jurisdiction.
MOUNTING SURFACE
The detector should be mounted to a solid surface that
is not prone to high vibration, shock, traumatic impact,
or other undesirable condition.
DETECTOR ORIENTATION
The Model HD detector is not position sensitive.
The device can be mounted either horizontally or
vertically depending on the application and installation
requirements.
To Next Page
Loading...
