UTC Fire & Security Americas Corporation Inc 788C-PIR User Manual
2
Switches
Switch settings:
33' STD
50' B1
Mounting the Detector
Verify the detector communicates with the control panel before you
permanently mount the detector. See Walk Testing the Detector.
Refer to Figure 1 as you perform the following steps:
1. Separate the PIR unit from the mounting bracket by pushing
Refer to Figure 1 as you perform the following steps:
1. Separate the PIR unit from the mounting bracket by pushing
apart the tabs at the bottom of the unit.
2. Select the appropriate knockout mounting holes on the
mounting bracket for either corner or flat wall mounting.
3. Use screws and wall anchors, if necessary, to attach the
mounting bracket to the wall.
Selecting the Coverage Pattern
The coverage pattern for the detector can be modified to fit specific
applications by masking off mirror curtains. Curtains should be
masked to avoid sources of false alarms, such as heaters, air
conditioners, and windows.
Open the unit by pressing the opening tab up. See Figure 6.
If necessary, use one or more of the following methods to modify
If necessary, use one or more of the following methods to modify
the coverage pattern:
· Use one or both of the plastic masks provided to mask off large
· Use one or both of the plastic masks provided to mask off large
areas of coverage as shown in Figure 4.
· Mask the appropriate mirror curtains with the adhesive labels
provided. See the example shown in Figure 5. Do not use sharp
objects to remove unwanted labels. If necessary, carefully peel
the label off.
the label off.
· An undercrawl mask is molded into the window allowing objects
to be placed within 5 feet of , or directly below the detector. This
mask can be removed cutting the three plastic tabs holding it in
place as shown in Figure 3.
place as shown in Figure 3.
2
1
2
1
a
b
Figure 4
Figure 5
A
B
1
9
A
B
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
9
9
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7
6
5
4
3
2
1
Figure 6
Figure 3
Setting the Sensitivity and Range
Switches
Switches
The detector provides switches on the back of the detector for
setting sensitivityand range, as shown in Figure 6.
Use the following to determine the appropriate switch settings for
an application mode:
BI= BI-curtain mode. Increases false alarm immunity in smaller
areas. Requires the intruder to pass through two curtains to trigger
an alarm. Do not use for single curtain applications or ranges under
5 feet. Factory default.
STD= Standard mode. Use for wide angle or single-curtain
applications. Requires the intruder to only pass through one curtain
to trigger alarm.
Range=Program switch for range under 33 ft. (factory default) or
to 50 ft. It's important to program the sensor correctly for optimum
sensitivity. Walk test the sensor regularly by walking across the
fields of view and checking that the LED lights and that the opening
relay is indicated back at the control panel.
Opening tab
Battery compartment
Tamper
Cut here to remove