System Sensor P24, S24 User Manual

D900-25-00 1 I56-0981-001R
INSTALLATION AND MAINTENANCE INSTRUCTIONS
3825 Ohio Avenue, St. Charles, Illinois 60174
1-800-SENSOR2, FAX: 630-377-6495
www.systemsensor.com
Specifications
Voltage Range: DC or Full-Wave Rectified
Strobes and Horn/Strobes: 24-volt models – 20 to 30 volts (with MDL module): 24-volt models – 21 to 30 volts
NOTE: Combo unit will operate on walk tests with on-time durations of 1 sec. or greater.
Flash Rate: 1 Flash Per Second Operating Temperature: 32° F to 120° F (0° C to 49° C) Light Output: 75 candela Sound Output: Sound output levels are established at Underwriters Laboratories in their reverberant room. Always use the
sound output specified as UL Reverberant Room when comparing products.
Listings: UL S4011 (Horn/Strobe), UL S3593 (Strobe)
1
/2 Sec.
On
1
/2 Sec.
Off
1
/2 Sec.
On
1
/2 Sec.
Off
1
/2 Sec.
On
11/2 Sec.
Off
Rep
General Description
The SpectrAlert series notification appliances are designed to meet the requirements of NFPA, The National Fire Alarm Code, and UL. Also, check with your local Authority Having Jurisdiction for other codes or standards that may apply.
This SpectrAlert S2475XXX Series Strobe and P2475XXX Series style Horn/Strobe can be installed in systems using 24-volt panels having DC or full-wave rectified (FWR) power supplies. The models can also be installed in systems requiring synchronization (module MDL required) or systems that do not require synchronization (no module required).
NOTICE: This manual shall be left with the owner/user of this equipment.
Fire Alarm System Considerations
Temporal and Non-Temporal Coded Signals:
The American National Standards Institute and the National Fire Alarm Code require that all horns used for building evacuation installed after July 1, 1996, must produce Temporal Coded Signals.
Signals other than those used for evacuation purposes do not have to pro­duce the Temporal Coded Signal. Temporal coding is accomplished by inter­rupting a steady sound in the following manner:
Power Supply Considerations
Panels typically supply DC filtered voltage or FWR (full-wave rectified) voltage. The system design engineer must calculate the number of units used in a zone based on the type of panel supply. Be certain the sum of all the device currents do not exceed the current capability of the panel. Calculations are based on using the device current found in the subsequent charts and must be the current specified for the type of panel power sup­ply used.
Wire Sizes
The designer must be sure that the last device on the circuit has sufficient voltage to operate the device within its rated voltage. When calculating the voltage available to the last device, it is necessary to consider the volt­age drop due to the resistance of the wire. The thicker the wire, the less the voltage drop. Generally, for purposes of determining the wire size nec­essary for the system, it is best to consider all of the devices as “lumped” on the end of the supply circuit (simulates “worst case”).
Typical wire size resistance: 18 AWG solid: Approximately 8 ohms/1,000 ft. 16 AWG solid: Approximately 5 ohms/1,000 ft. 14 AWG solid: Approximately 3 ohms/1,000 ft. 12 AWG solid: Approximately 2 ohms/1,000 ft.
Example: Assume you have 10 devices on a zone and each requires 50 mA average and 2000 Ft. of 14 AWG wiring (total length=outgoing +return). The voltage at the end of the loop is 0.050 amps per device x 10 devices x 3 ohms/1,000 ft. x 2000 ft =3 volts drop.
The same number of devices using 12 AWG wire will produce only 2 volts drop. The same devices using 18 AWG wire will produce 8 volts drop. Consult your panel manufacturer’s specifications, as well as SpectrAlert’s operating voltage range to determine acceptable voltage drop.
Note: If class “A” wiring is installed, the wire length may be up to 4 times the single wire length in this calculation.
SpectrAlert Strobe and Horn/Strobe
For use with the following 24-volt models: Strobes: S2475RLP, S2475ALP, S2475GLP, S2475BLP Horn/Strobes: P2475RLP, P2475ALP, P2475GLP, P2475BLP
Lens colors: “RLP” for Red, “ALP” for Amber, “GLP” for Green, “BLP” for Blue The “P” suffix indicates no markings on the housing; add suffix “W” for white housing models. The Products to which this manual applies may be covered by one or more of the following U.S. Patent numbers: 5,914,665; 5,850,178; 5,593,569; 5,598,139; 6,049,446; 6,133,843
D900-25-00 2 I56-0981-001R
Strobe:
Sound Output Guide UL Reverberant Room dBA@ volts DC Anechoic dBA @10 ft./volts DC
20 24 30 20 24 30
Temporal Low Volume Electromechanical 75 75 79 94 96 98
3000 Hz Interrupted 75 79 79 94 96 98
High Volume Electromechanical 82 82 82 100 101 102
3000 Hz Interrupted 82 85 85 100 101 102
Non- Low Volume Electromechanical 79 82 85 94 96 98 Temporal 3000 Hz Interrupted 82 82 85 94 96 98
High Volume Electromechanical 85 88 88 100 101 102
3000 Hz Interrupted 88 88 88 100 101 102
(+)
(–)
(+)
(–)
E O L
(+)
(–)
(+)
(–)
HORN/STROBEHORN/STROBE
STROBE ONLY
Figure 1A. Any combination of models powered by a 2-wire circuit:
System Operation: Non-Synchronized Devices
FROM: FACP, MODULE OR PREVIOUS DEVICE
TO NEXT
DEVICE OR
EOL
(+)
(+) (+)
(–)
(–)
(–)
TANDEM OPERATION
HORN/STROBE COMBO
FACTORY INSTALLED JUMPERS
Figure 1B: Horns and strobes powered in tandem:
NOTE: Supply power must be continuous for proper operation.
Current Draws
Horn/Strobe:
DC FWR DC FWR DC FWR
169 220 140 191 115 174
AVERAGE CURRENT (mA)
24V Models
20V 24V 30V
DC FWR DC FWR DC FWR
460 560 450 570 420 620
PEAK CURRENT (mA)
24V Models
20V 24V 30V
DC FWR DC FWR DC FWR
190 230 220 290 290 370
IN RUSH CURRENT (mA)
24V Models
20V 24V 30V
DC FWR DC FWR DC FWR
188 241 165 209 144 200 186 238 163 211 145 202 180 232 153 204 132 189 181 232 154 204 132 190 193 246 168 214 152 207 188 242 167 217 150 210 183 234 157 206 136 193 182 232 156 205 137 195
High/Low Volume
Temp /Non
Electro­mech.
Temp Non Temp Non Temp Non Temp Non
3000 Hz Interrupt.
AVERAGE CURRENT (mA)
24V Models
20V 24V 30V
Tone
High Low High Low
Horn Selections
Horns are factory set for high volume, temporal code, and electromechan­ical tone. Tones:
Tw o tones may be selected using the jumper plugs located on the printed circuit board. With the jumper offset, the tone is the Electromechanical sound. With the jumper in place, the tone is a 3 kHz sound.
Temp/Non-Temp:
Temporal coding or Non-Temporal coding can be selected using the jumper plugs located on the printed circuit board. With the jumper offset, the tone pattern is the Temporal Coded Signal. With the jumper in place, the Non-Temporal code (continuous) tone is active.
NOTE: When powered from FWR supply, the tones will be modulated
(turned on and off) by 120Hz, causing the tones to sound dif­ferent from DC power.
High/Low Volume:
High or low volume may be selected using the jumper plugs located on the printed circuit board. With the jumper in place, the sound output level is the high level. With the jumper offset, the sound output level is the low level. The low volume setting must NOT be used when the device is powered from a 12-volt panel.
NOTE: Always power down devices before setting jumpers.
Loading...
+ 2 hidden pages