System Sensor 5251P User Manual
INSTALLATION AND MAINTENANCE INSTRUCTIONS
Intelligent Plug-In Model 5251P
3825 Ohio Avenue, St. Charles, Illinois 60174
Fixed Temperature Sensor
Before installing sensors, r efer to NFPA 72, and 10 1 (Life Safety Code) for information on sensor spacing, placement, zoning, and special applications.
GENERAL DESCRIPTION
Model 5251P is an intelligent sensor that utilizes a state-of-the-art thermistor sensing circuit for fast response . This sensor
is designed to provide open area protection with 50 foot spacing capability and is intended for use with compatible control panels only.
Two LEDs on each sensor light to provide 360° visibility of the sensor indication. The LEDs can be latched ON by code
command from the panel for an alarm indication. The LEDs can also be unlatched to the normal condition by code command. Remote LED annunciator capability is available as an optional accessory (Part No. RA400Z).
SPECIFICATIONS
Diameter: 6.1 inches (155 mm) installed in B210LP
4.1 inches (104 mm) installed in B501
Height: 2.0 inches (51 mm)
Weight: 5 ounces (150 gm)
Installation Temperatures: -4°F to 100°F (-20°C to 38°C)
Operating Humidity Range: 10% to 93% Relative Humidity Non-condensing
Mounting: B210LP flanged base
B501 flangeless base
B501 with RMK400 recessed mounting kit
Voltage Range: 15 to 32 Volts DC Peak
Standby Current:
LED Current: 6.5 mA @ 24 VDC
Fixed Temperature Rating: 135°F (57°C)
300 µA @ 24 VDC (one communication every 5 seconds with LED blink enabled)
1-800-SENSOR2, FAX: 630-377-6495
A Division of Pittway
WIRING GUIDE
Refer to the installation instructions for the particular plug-in base being used: 1) for the B210LP base (D250-01-00); 2) for
the B501 base (D550-02-00); 3) for the RMK400 used with the B501 base (D450-0 7-00). Bases ar e pr o vided with scr ew terminals for power, ground, and remote annunciator connections. See Figure 1.
D200-88-00 1 I56-1331-02R
NOTE: All wiring must conform to applicable local codes, ordinances, and regulations.
NOTE: Verify that all sensor bases are installed and that the wiring polarity is correct at each base.
WARNING: Disconnect the power from the loop before installing sensors.
1. Install Sensors:
a. Verify that the sensor type matches the type written on the label in the base.
b. Set the sensor to a desired address and then write the address on the label on the base.
c. Place the sensor into the sensor base.
d. Turn the sensor clockwise until it drops into place.
e. Continue turning the sensor clockwise to lock it in place.
CONTROL PANEL
U.L. LISTED COMPATIBLE
REMOTE ANNUNCIATOR
+-
+
2
3
1
-
+
CLASS A OPTIONAL WIRING
CAUTION: Do not loop wire under terminal 1 or 2.
Break wire run to provide supervision of connections.
2
3
1
3
2
1
Figure 1
2. Tamper Resistance:
The sensor bases have a tamper-resistant capability. When this capability is enabled, sensors cannot be r emo v ed from
the base without the use of a small screwdriver or other similar tool. Refer to the sensor base installation instruction
manual for details in using this capability.
3. After all sensors have been installed, apply power to the control unit.
A78-1253-01
4. Test the sensor by placing a small magnet against the sensor plastic, as shown in Figure 2. The alarm level should be
recognized in the panel and the LED controlled by communication command from the panel.
5. The reset of the sensor LED is controlled by communication command from the panel.
TESTING
Sensors must be tested after installation and periodic maintenance. The sensor may be tested in the following ways.
A. Test Magnet (Model No. M02-04)
1. Place the magnet against the cover in the magnet test area as shown in Figure 2 to activate the test feature.
2. The LEDs should latch ON within 10 seconds, indicating alarm and annunciating the panel.
3. Reset the detector at the system control panel.
B. Test sensitivity from the control panel.
C. Direct Heat Method (Hair dryer of 1000 – 1500 watts)
1. From the side of the detector, direct the heat to ward the sensor. Hold the heat sour ce about 6 inches (15cm) awa y to
prevent damage to the cover during testing.
D200-88-00 2 I56-1331-02R
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