System Sensor 2100D, 2100TD User Manual

INSTALLATION AND MAINTENANCE INSTRUCTIONS

2100D and 2100TD Photoelectronic
Smoke Detectors

Specications

Diameter: 5.5 inches (140 mm)
Height (including mounting bracket): 1.7 inches (43 mm)
Weight: 5.3 oz. (150 g)
Operating Temperature Range: Model 2100D: 32° to 120°F (0° to 50°C)
Model 2100TD: 32° to 100°F (0° to 39°C)
Operating Humidity Range: 10% to 93% Relative Humidity, Noncondensing
Latching Alarm: Reset by momentary power interruption
Heat Sensor (Model 2100TD only): 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)
Start-up Capacitance: 0.02 µF maximum
Standby Current: 50 µA maximum
Alarm Ratings: 4.2 VDC minimum at 10 mA.

6.6 VDC maximum at 100 mA.
(Alarm current must be limited to 100 mA maximum by the control panel. If

used, the RA400Z Remote Annunciator operates within the specied detector

alarm currents.)
Reset Voltage: 2.5 VDC minimum
Reset Time: 0.3 seconds maximum
Start-up Time: 30 seconds maximum (after 60 second reset)

3825 Ohio Avenue, St. Charles, Illinois 60174

1-800-SENSOR2, FAX: [phone]

A Division of Pittway

Before Installing

Please thoroughly read 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 should be left with the owner/user
of this equipment.

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

General Description

Model 2100D is a 2-wire photoelectronic smoke detector
that uses a state-of-the-art optical sensing chamber. This
detector is designed to provide open area protection and
to be used with compatible UL-listed panels only. Model
2100TD features a restorable, built-in, xed-temperature
(135°F) thermal detector.

Installation of these detectors is simplied 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 the detector’s status. If power is applied to
the detector, and it is functioning normally in standby, the
status LED blinks every ten seconds. The LED also latches
on in alarm.

Models 2100D and 2100TD feature a visual indication that
maintenance is required – if the sensing chamber drifts out
of its sensitivity limits, the LED ceases to blink.

The detectors also include an output that allows an optional
Model RA400Z Remote Annunciator to be connected.

D200-54-00 1 I56-710-09

Figure 1. Surface mounting of 2100D smoke detector

TAMPER SLOT
(DEPRESS TAB TO
REMOVE DETECTOR)

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

ALIGNMENT
ARROWS

WARNING

on 3 1/2-inch and 4-inch octagonal box:

A78-2563-00

The screw terminal block will accept 14 – 22 gauge wire.
For best system performance, all wiring should be installed
in separate grounded conduit; do not mix re system wiring
in the same conduit as any other electrical wiring. Twisted
pair may be used to provide additional protection against
extraneous electrical interference.

Wire connections are made by stripping about 1/4 inch of
insulation from the end of the feed wire, inserting the wire
into the appropriate terminal, and tightening the screw to
secure the wire in place.

Mounting

Each 2100D and 2100TD 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 31/2-inch or 4-inch octagonal box, or

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

Tamper-resistance 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 tamper­resistant tab on the detector mounting bracket (see Figure

2), 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 re.

System Sensor smoke detectors are marked with a compati­bility identier located as the last digit of a ve digit code
stamped on the back of the product. Connect detectors only
to compatible control units as indicated in System Sensor’s
compatibility chart which contains a current list of UL
listed compatible control units and detectors. A copy of this
list is available from System Sensor upon request.

Installation

Remove power from the control unit or initiating-device
circuits before installing detectors.

1. Wire the plug-in screw terminal block per Figure 3 and
plug the terminal block into the detector.

2. Align the arrows on the detector with the arrows on the
mounting bracket.

3. Turn the detector clockwise in the mounting bracket un­til it clicks into place.

4. After all detectors have been installed, apply power to
the control unit or initiating-device circuits.

5. Test the detector as described in the following
paragraph.

6. Reset the detector at the system control panel.

7. Notify the proper authorities the system is in operation.

Figure 2. 2100D and 2100TD smoke detector mounting bracket:

D200-54-00 2 I56-710-09

A78-2333-01

LED

TEST MODULE
SOCKET

RECESSED TEST
SWITCH

CAUTION

OPTIONAL CLASS A WIRING

EOL RESISTOR
SPECIFIED BY
PANEL
MANUFACTURER

UL LISTED

COMPATIBLE

CONTROL

PANEL

INITIATING

LOOP

+

–

RA400Z

REMOTE

ANNUNCIATOR

+
–

RA400Z

REMOTE

ANNUNCIATOR

+

–

+
+

–
LED

+

–

+
+

–
LED

+

–

Figure 3. Wiring diagram for the 2100D and 2100TD detector:

PUSH RECESSED
SWITCH WITH

A

0.18

″ MAX. DIAMETER TOOL

or analog voltmeter to check the detector sensitivity as

Dust covers are an effective way to limit the entry of dust
into smoke detector sensing chambers. However, they may
not completely prevent airborne dust particles from en­tering the detector. Therefore, System Sensor recommends
the removal of detectors before beginning construction or
other dust producing activity. Be sure to remove dust covers
from any sensors that were left in place during construction
as part of returning the system to service.

Testing

NOTE: Before testing, notify the proper authorities that the

smoke detector system is undergoing maintenance
and will temporarily be out of service. Disable the
zone or system undergoing maintenance to prevent

unwanted alarms.
Detectors must be tested after installation and following
periodic maintenance. Test the 2100D as follows:
A. Test Switch

1. A recessed test switch is located on the detector hous-

ing (See Figure 4).

2. Push and hold the recessed test switch with a 0.18

inch maximum diameter tool such as an allen wrench
or small screwdriver.

3. The detector’s LED should light within 5 seconds.

described in the test module’s manual.
C. Smoke Entry Test
Hold a smoldering punk stick or cotton wick at the side

of the detector and gently blow smoke through the de-

tector until the unit alarms.
D. Direct Heat Method (Model 2100TD only – Hair dryer of

1000-1500 watts).
Direct the heat toward either of the side thermistors.

Hold the heat source about 12 inches from the detector

in order to avoid damage to the plastic. The detector will

reset only after it has had sufcient time to cool and the

power source has been momentarily interrupted.
Both smoke and heat detection testing are recommended
for verifying system protection capability.

A detector that fails to activate with any of the above tests
should rst be cleaned as outlined in the MAINTENANCE
section which follows. If the detector still fails to activate, it
should be returned for repair.

Notify the proper authorities the system is back on line.

Maintenance

NOTE: Before removing the detector, notify the proper

B. Test Module (System Sensor Model No. MOD400R).
The MOD400R test module can be used with a DMM

Figure 4. Top and side views showing position of test switch:

A78-2331-02

authorities that the smoke detector system is un­dergoing maintenance and will temporarily be out
of service. Disable the zone or system undergoing
maintenance to prevent unwanted alarms.

D200-54-00 3 I56-710-09

WARNING

NOTE: (Model 2100TD only) Before removing the de-

REMOVABLE
HOUSING

REMOVABLE
SCREEN

SENSING CHAMBER
COVER

BASE

SENSING
CHAMBER

tector cover, note the position of the thermistors.
Make sure the thermistors are not bent over when
the housing is replaced.

1. Remove detector housing by gently prying the four hous­ing tabs on the bottom of the base with a small-bladed
screwdriver and pull the housing from the base. Use cau­tion to avoid damaging the thermistors (2100TD only).

2. Vacuum the screen carefully without removing it.

3. Remove screen assembly, pulling straight out (see Figure

5).

4. Remove the sensing chamber cover.

5. Clean the sensing chamber by vacuuming or blowing out
dust and particles.

6. Replace the sensing chamber cover, aligning the arrow
on the cover top with the arrow on the printed circuit
board.

7. Replace the screen by placing the screen assembly over
the sensing chamber cover and twisting until it snaps
into place.

8. Replace the housing by aligning the three triangular
slots on the base with their counterparts on the housing.

Gently press the housing until it locks in place. Check
to make sure that the thermistors are in the upright po­sition (2100TD).

9. Reinstall the detector.

10. Notify the proper authorities the system is back in op­eration.

Figure 5. Removal of cover and screen for cleaning:

A78-2565-02

The Limitations of Property Protection Smoke Detectors

This smoke detector is designed to activate and initiate emergency ac­tion, but will do so only when it is used in conjunction with an authorized
re alarm system. This detector must be installed in accordance with
NFPA standard 72.
Smoke detectors will not work without power. AC or DC powered
smoke detectors will not work if the power supply is cut off.

Smoke detectors will not sense res which start where smoke does
not reach the detectors. Smoldering res typically do not generate a lot

of heat which is needed to drive the smoke up to the ceiling where the
smoke detector is usually located. For this reason, there may be large de­lays in detecting a smoldering re with either an ionization type detector
or a photoelectric type detector. Either one of them may alarm only after
aming has initiated which will generate the heat needed to drive the
smoke to the ceiling.
Smoke from res in chimneys, in walls, on roofs or on the other side of a
closed door(s) may not reach the smoke detector and alarm it. A detector
cannot detect a re developing on another level of a building quickly or
at all. For these reasons, detectors shall be located on every level and in

every bedroom within a building.
Smoke detectors have sensing limitations, too. Ionization detectors and

photoelectric detectors are required to pass re tests of the aming and
smoldering type. This is to ensure that both can detect a wide range of
types of res. Ionization detectors offer a broad range of re sensing ca-

Three-Year Limited Warranty

System Sensor warrants its enclosed smoke detector to be free from de­fects in materials and workmanship under normal use and service for a
period of three years from date of manufacture. System Sensor makes no
other express warranty for this smoke detector. No agent, representative,
dealer, or employee of the Company has the authority to increase or alter
the obligations or limitations of this Warranty. The Company’s obliga­tion of this Warranty shall be limited to the repair or replacement of any
part of the smoke detector which is found to be defective in materials or
workmanship under normal use and service during the three year period
commencing with the date of manufacture. After phoning System Sensor’s
toll free number 800-SENSOR2 (736-7672) for a Return Authorization
number, send defective units postage prepaid to: System Sensor, Repair

D200-54-00 4 I56-710-09
© System Sensor 1997

pability but they are somewhat better at detecting fast aming res than
slow smoldering res. Photoelectric detectors sense smoldering res bet­ter than aming res which have little, if any, visible smoke. Because res
develop in different ways and are often unpredictable in their growth, nei­ther type of detector is always best, and a given detector may not always
provide early warning of a specic type of re.
In general, detectors cannot be expected to provide warnings for res
resulting from inadequate re protection practices, violent explosions,
escaping gases which ignite, improper storage of ammable liquids like
cleaning solvents which ignite, other similar safety hazards, arson, smok­ing in bed, children playing with matches or lighters, etc. Smoke detectors
used in high air velocity conditions may have a delay in alarm due to
dilution of smoke densities created by frequent and rapid air exchanges.
Additionally, high air velocity environments may create increased dust
contamination, demanding more frequent maintenance.
To keep your equipment in excellent working order, ongoing maintenance
is required per the manufacturer’s recommendations and UL and NFPA
standards. At a minimum, the requirements of Chapter 7 of NFPA 72, the
National Fire Alarm Code, shall be followed. A preventative maintenance
agreement should be arranged through the local manufacturer’s represent­ative. Though smoke detectors are designed for long life, they may fail at
any time. Any smoke detector, re alarm equipment, or any component of
that system which fails shall be repaired or replaced as soon as possible.

Department, RA #__________, 3825 Ohio Avenue, St. Charles, IL 60174.
Please include a note describing the malfunction and suspected cause
of failure. The Company shall not be obligated to repair or replace units
which are found to be defective because of damage, unreasonable use,
modications, or alterations occurring after the date of manufacture. In no
case shall the Company be liable for any consequential or incidental dam­ages for breach of this or any other Warranty, expressed or implied what­soever, even if the loss or damage is caused by the Company’s negligence
or fault. Some states do not allow the exclusion or limitation of incidental
or consequential damages, so the above limitation or exclusion may not
apply to you. This Warranty gives you specic legal rights, and you may
also have other rights which vary from state to state.