System Sensor S1224MC User Manual

INSTALLATION AND MAINTENANCE INSTRUCTIONS

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SpectrAlert Selectable Output Strobes, Horns, and Horn/Strobes

For use with the following models: Strobes - 12/24 volt: S1224MC, S1224MCW, S1224MCSP, S1224MCSPW, S1224MCP, S1224MCPW Combo - 12/24 volt: P1224MC, P1224MCW, P1224MCSP, P1224MCSPW, P1224MCP, P1224MCPW Horns - H12/24, H12/24W

Sufﬁx “W” indicates white housing models. Sufﬁx “SP” indicates “FUEGO” (Spanish word for “FIRE”) lettering on housing. Sufﬁx “P” indicates plain housing (no lettering). 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; 5,598,139; 6,049,446; 6,133,843; 6,522,261; 6,661,337; 5,931,569; 6,793,375; 6,822,400; 6,833,783; 6,838,997

3825 Ohio Avenue, St. Charles, Illinois 60174

1-800-SENSOR2, FAX: 630-377-6495

www.systemsensor.com

Speciﬁcations

Automatic selection for 12 or 24 volt rated operation (DC or Full-Wave Rectiﬁed)

Electrical

Horns, Strobes, and Horn/Strobes Voltages: Regulated 12 DC/FWR and Regulated 24 DC/FWR Operational Voltage Ranges: 12V=8-17.5 Volts; 24V=16-33 Volts Synchronous Applications with MDL Module: 12V=9-17.5 Volts; 24V=17-33 Volts Operational Humidity Range: 10-93% RH (non-condensing)

NOTE: Horn units will operate on walk tests with on-time durations of .25 sec. or greater.

Flash Rate: 1 ﬂash per second Operating Temperature: 32° F to 120° F (0° C to 49° C) Selectable Light Outputs: All candelas are selectable via a manual slide switch. 12/24 Volt Applications: 15 or 15/75 candela 24 Volt Application: 30, 75, 110 candela 15/75 is listed at 15 candela per UL 1971 but will provide 75 candela on axis

(straight ahead). 15, 30, 75, or 110 are rated for that candela.

Sound Output: Sound output levels are established at Underwriters Laboratories in their reverber-

ant room. Always use the sound output speciﬁed as UL Reverberant Room when

comparing products. Listings: UL S5512 (Strobe); UL S4011 (Combo) Note for Strobes: Do not exceed: 1) 8-17.5 or 16-33 voltage range limit; 2) maximum number of 70

strobe lights when connecting the MDL Sync module with a maximum line im-

pedance of 4 ohms per loop and; 3) maximum line impedance as required by the

ﬁre alarm control manufacturer.

The models P1224MCPW the customer is a high quality strobe device.

S1224MC, S1224MCW, S1224MCSP, S1224MCSPW, S1224MCP, S1224MCPW, P1224MC, P1224MCW, P1224MCSP, P1224MCSPW, P1224MCP, and

incorporate a patented voltage booster design that has a more consistent flash bulb voltage over the range of candela selections. The benefit to

General Description

The SpectrAlert series notiﬁcation appliances are designed to meet the requirements of most agencies governing these devices, including: NFPA, ADA, The National Fire Alarm Code, UL, ULC, FM, CSFM, MEA. Also, check with your local Authority Having Jurisdiction for other codes or standards that may apply.

The SpectrAlert series can be installed in systems using 12- or 24volt panels having DC or full-wave rectiﬁed (FWR) power supplies. The series can also be installed in systems requiring synchroniza tion (module MDL or compatible equivalent 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 in

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stalled 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 accom plished 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 nec essary 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 re quires 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.

NOTE: If class “A” wiring is installed, the wire length may be up to 4 times the single wire length in this calculation.

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 accept able voltage drop.

Figure 1A: Current Draw Measurements (RMS)

NOTE: All ‘S’ and ‘P’ models were only tested at the 8-17.5 and 16-33 Volt-FWR/DC limits. This does not include the 80% lowend or 110% high-end voltage limits.

Strobe Current Draw

Candela Setting

15/75

110

FWR

Operating

Current

Strobe

12V 24V 12V 24V

112 64 127 59

135 74 127 69

93 90

158 160

208 209

Operating

Current

Strobe

Figure 1B: Horn Sound Measurements (dBA):

Selectable Horn Tones

Temporal Low

NonTemporal

Volume

High Volume

Low Volume

High Volume

Electromechanical 67 75

3000 Hz Interr upted 68 75

Electromechanical 71 80

3000 Hz Interr upted 72 81

Electromechanical

3000 Hz Interr upted 72 79

Electromechanical 76 84

3000 Hz Interr upted 77 86

8-17.5V 16-33V

71 79

Figure 1C: Horn Current Draw Measurements (RMS):

Selectable Horn Tones

Temporal Low

NonTemporal

Volume

High Volume

Low Volume

High Volume

NOTE: Regulated 12 VDC, max operating current 44.4 mA Regulated 24 VDC, max operating current 57.0 mA 12 V FWR, max operating current 45.7 mA 24 V FWR, max operating current 57.5 mA

NOTE: 12VDC 2-wire horn/strobe current is shown in Figure 1D. 24VDC 2-wire horn/strobe current is shown in Figure 1E. Current draw for other horn/strobe power supplies can be calculated by adding the strobe current draw (Figure 1A) for chosen candela set ting to the horn current draw (Figure 1C) for chosen setting.

Electromechanical 15 23 13 23

3000 Hz Interr upted 15 33 13 23

Electromechanical 36 53 20 44

3000 Hz Interr upted 43 57 21 40

Electromechanical

3000 Hz Interr upted 16 32 18 33

Electromechanical 38 49 46 49

3000 Hz Interr upted 44 56 42 58

DC FWR

12V 24V 12V 24V

16 37 19 29

Figure 1D: 12VDC Horn/Strobe Current Draw Measurements (mA RMS)

Low Volume High Volume

Candela

Setting

15 111 111 112 112

15/75 127 127 126 129

15 113 112 114 115

15/75 128 128 130 134

Electromechanical 3000 Hz Electromechanical 3000 Hz

Temporal

Non-Temporal

Figure 1E: 24VDC Horn/Strobe Current Draw Measurements (mA RMS)

Temporal

Low Volume High Volume

Candela

Setting

15/75 86 85 87 88

110 209 209 210 213

15/75 86 88 93 96

110 213 213 218 222

Electromechanical 3000 Hz Electromechanical 3000 Hz

15 71 70 73 75

30 99 98 100 100

75 166 166 167 170

Non-Temporal

15 74 74 79 82

30 101 101 107 110

75 167 167 173 176

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