System Sensor 2100AT User Manual

INSTALLATION AND MAINTENANCE INSTRUCTIONS

2100AT Photoelectronic Smoke Detector with Fixed Heat and Integral Temp-3 Sounder

Figure 1. Wiring diagram for the 2100AT detector:

IMPORTANT: OBSERVE POLARITY

Polarity must be observed on the power and remote annunciator connections.

3825 Ohio Avenue, St. Charles, Illinois 60174

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

INITIATING

COMPATIBLE

NOTE: Only one detector per zone shall be used, unless when in alarm the panel switches

LOOP

–

P W

UL LISTED CONTROL

PANEL

the zone to a reverse polarity, noncurrent-limited power supply. The 2100AT detector shall not be mixed with other 2-wire detector types on the same zone.

–

RA400Z REMOTE ANNUNCIATOR

OPTIONAL CLASS A WIRING

–

NOT USED

EOL

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Specifications

Diameter: 5.5 inches (140 mm) Height (including mounting bracket): 2.05 inches (52 mm) Weight: 7.5 oz. (210 g)

Operating Temperature Range 32° to 100°F (0° to 38°C)

Operating Humidity Range: 10% to 93% Relative Humidity, Noncondensing Latching Alarm: Reset by momentary power interruption Audible Signal: 85 dBA minimum when in alarm or with supply polarity reversed

Heat Sensor: 135°F Fixed Temperature Electronic Thermistor

Electrical Ratings

System Voltage (nominal): 12 or 24 VDC

Minimum: 8.5 VDC

Maximum: 35 VDC Maximum Ripple Voltage: 30% of nom. Voltage (peak to peak) Standby Current: 50 µA average, 100 µA maximum Alarm Ratings: 29 mA typical at 12 VDC, 63 mA typical at 24 VDC, 100 mA maximum

(If used, the RA400Z Remote Annunciator operates within the specified detector

alarm currents.) Reset Voltage: 1.8 VDC minimum Reset Time: 0.6 seconds maximum Start-up Time: 30 seconds maximum (after 60 sec. reset) EOL Relay: A77-716B, 12/24 VDC Special Considerations: NOTE: Only one detector per zone shall be used, unless when in alarm the panel

switches the zone to a reverse polarity, non-current limited power supply. For

panels that do not provide this feature, a reversing relay, such as System Sensor’s

RR-2, may be used. When utilized with the 2100AT, it allows for more than one de-

tector to be utilized on a loop. Some panels may require the use of programmable

outputs. Refer to System Sensor literature for further information on the RR-2.

The 2100AT detector shall not be mixed with other 2-wire detectors on the same

zone.

–Due to the built-in temporal pattern, use this detector only with a non-coded

power source.

D200-69-00 1 I56-1145-05R

Figure 2. Surface mounting of 2100AT smoke detec-

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tor on 31/2-inch and 4-inch octagonal box:

the detector’s status. If power is applied to the detector and it is functioning normally in standby within the listed sensitivity range, the status LED blinks every ten seconds. The LED also latches on in alarm. If the LED stops blinking, the unit should be removed for maintenance and inspection.

The detectors also include an output that allows optional connection of the RA400Z Remote Annunciator.

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Before Installing

Please thoroughly read the System Sensor manual I56-407, Guide for Proper Use of System Smoke Detectors, which provides detailed information on detector spacing, placement, zoning, wiring, and special applications. Copies of this manual are available at no charge from System Sensor.

NOTICE: This manual shall be left with the owner/user of this equipment.

IMPORTANT: This detector must be tested and maintained following NFPA 72 requirements. The detector should be cleaned at least once a year.

General Description

Model 2100AT is a 2-wire photoelectronic smoke detectors that uses a state-of-the-art optical sensing chamber. This detector also provides restorable, 135˚F fixed-temperature heat detection. The 2100AT heat-detection unit is integrated with the photoelectronic sensor. This detector is designed to provide open area protection and to be used with compatible UL-listed panels only.

In addition, a piezoelectric horn in each detector produces an interrupted, 85 dBA tone when the individual detector alarms or when the supply voltage polarity is reversed.

Installation of this detector is simplified by the use of a mounting bracket and a plug-in screw terminal block that can be prewired to the system, allowing the detector to be easily installed or removed for cleaning. The detector’s sensitivity can be tested in place using the MOD400R Test Module.

An LED on the detector provides a local visual indication of

Figure 3. 2100AT smoke detector mounting bracket:

TAMPER SLOT (DEPRESS TAB TO REMOVE DETECTOR)

Mounting

Each 2100AT detector is supplied with a mounting bracket that permits the detector to be mounted:

1. To a single gang box, or

2. Directly to a 3-1/2 inch or 4 inch octagonal box, or

3. To a 4 inch square electrical box by using a plaster ring.

4. Directly to the ceiling using drywall anchors, if permitted by local codes and/or the authority having jurisdiction.

Tamper-resistant Feature

This detector includes a tamper-resistant feature that prevents its removal from the bracket without the use of a tool. To make the detector tamper-resistant, remove the smaller tab by breaking it at the scribed line on the tamper resistant tab on the detector mounting bracket (see Figure 3), then install the detector. To remove the detector from the bracket once it has been made tamper resistant, use a small screwdriver to depress the tamper-resistant tab, located in the slot on the mounting bracket, and turn the detector counterclockwise.

Wiring Installation Guidelines

All wiring must be installed in compliance with the National Electrical Code, applicable local codes, and any special requirements of the local authority having jurisdiction. Proper wire gauges should be used. The conductors used to connect smoke detectors to control panels and accessory devices should be color-coded to reduce the likelihood of wiring errors. Improper connections can prevent a system from responding properly in the event of a fire.

The screw terminal block accepts 14 – 22 gauge wire. For best system performance, all wiring should be installed in separate grounded conduit. Do not mix fire system wiring in the same conduit as any other electrical wiring. Twisted used before wiring the detector loops.

TAMPER RESISTANT TAB (CUT OFF SMALL TAB TO ACTIVATE TAMPER-RESIST FEATURE)

ALIGNMENT ARROWS

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D200-69-00 2 I56-1145-05R

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