April 200376-100016-002
PEGAsys™ LV
7-5
• AC Power Failure
• 24 Vdc Power Supply Failure
• Battery Failure
• Ground Fault
• Communications Failure
The power supply trouble relay is normally powered so
that, in the event of power failure, the relay will transfer to
the de-energized state. The contact can be used to signal
an external power supply trouble indicator.
The wiring to an external power supply trouble indicating
device is to be run through a conduit from the indicating
device to the Central Control Panel. The conduit must be
attached to any convenient CCP enclosure knockout. Con-
nect wiring to TB1 on the CCP’s power supply PCB, as
shown in Figure 3-4.
7-9 DETECTOR INSTALLATION
Refer to the SmartOne
®
Smoke and Heat Detector Instal-
lation Sheet (P/N 74-212) for installation instructions. Also,
refer to Paragraph 2-8.4 for setting addresses and regis-
tering RCUs.
7-10 SETTING AND ADJUSTING SMOKE AND
HEAT DETECTOR SENSITIVITIES
Set the sensitivity of SmartOne
®
ionization and photoelec-
tric smoke detectors and heat detectors by setting the
threshold alarm and pre-alarm smoke density levels. The
SmartOne
®
smoke detectors (Ionization and Photoelec-
tric) were previously programmed for a device application
during the registration process.
The smoke detectors have specific sensitivities for par-
ticular applications. There are three applications which rep-
resent the majority of detector use: Open Area, Open Area
(High Air Flow) and Duct.
The sensitivity adjustment is accomplished in one of two
ways:
1. Smoke and Heat Detector Configuration. During the
process of configuring, the operator uses the PCS pro-
gram and selects the application of the detector and
adjusts the settings of the alarm and pre-alarm values
within the range for the application, or accepts the de-
fault values for the application.
2. Sensitivity Setting Operation. This procedure is se-
lected from the user menus. This method is generally
used for systems which have been installed and op-
erational for a period of time. It should only be used if
there is a need to change the sensitivity of the device.
7-10.1
Setting and Adjusting Smoke and Heat
Detector Sensitivity Procedure
The step-by-step procedure to perform the sensitivity set-
ting is as follows:
1. Access the PEGAsys LV system menus as follows:
a. Press the zero (0) key. Verify that the display reads:
PLEASE ENTER PASSWORD
b. Type in the Level 2 password.
c. Press the return (
↵↵
↵↵
↵) key. Verify that the display
reads:
1:ISOLATE 2:LIST
3:SET 4:TEST
2. Select the Detector Sensitivity by typing in 3-3-2. Verify
that the display reads:
1:IONIZATION 2:PHOTOELECTRIC
3:THERMAL (<) to return
3. Select the desired detector style which is to have its
sensitivity adjusted. After type selection, the system
displays:
SET DETECTOR SENSITIVITY
DETECTORS FROM _ _ _ _ TO _ _ _ _
Note: The user would enter the address range of the
detectors to be adjusted. The range can be from 1
to 255. The system will adjust the sensitivity of all
the specified type of detectors which were previ-
ously chosen (Ion, Photo or Heat) within the range.
4. Press the return key and the display will read:
SET DETECTOR SENSITIVITY
PREALARM _._ (0.2 -3.0 / FT)
The pre-alarm sensitivity ranges, by device type, are:
Device Open Area High Velocity
Ionization 0.5–1.5%/FT 0.5–1.0 %/FT
Photoelectric 0.2–3.5 %/FT 0.2–2.0 %/FT
Device 50 ft. Spacing 70 ft. Spacing
Thermal 80°–155° F 80°–145° F
5. This prompt asks the user for the Pre-alarm level for
the detector(s) to be set. Key in the desired pre-alarm
level and press the return key. After pressing return
the display will read:
SET DETECTOR SENSITIVITY
ALARM _._ (0.5 -3.0/FT)
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