System Sensor 2151 Users Manual

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D100-04-00 1 I56-581-07R

2151 Low Profile

Photoelectronic Plug-in

Smoke Detector

INSTALLATION AND MAINTENANCE INSTRUCTIONS

3825 Ohio Avenue, St. Charles, Illinois 60174

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

www.systemsensor.com

Before Installing

Please thoroughly read the System Sensor manual A05-

1003, Applications Guide for System Smoke Detectors,

which provides detailed information on detector spacing,

placement, zoning, wiring, and special applications. Copies

of this manual are available from System Sensor.

NOTICE: This manual should be left with the owner/user

of this equipment.

IMPORTANT: The detector used with this base must be

tested and maintained regularly following NFPA 72 require-

ments. The detector used with this base should be cleaned

at least once a year.

General Description

The 2151 low-profile photoelectronic detector uses a state-

of-the-art optical sensing chamber. This detector is designed

to provide open area protection and to be used with com-

patible UL listed control panels only. The capability of plug-

ging this detector into a variety of special bases makes it

more versatile than equivalent direct-wired models.

Two LEDs on each detector provide local 360° visible

alarm indication. They flash every ten seconds indicating

that power is applied and the detector is working properly.

The LEDs latch on in alarm. Remote LED annunciator

capability is standard and may be implemented through

an optional accessory RA400Z. The alarm can be reset

only by a momentary power interruption. This detector

may be tested by activating the internal reed switch with

a magnet.

Base Selection And Wiring Guide

Refer to the installation instructions for the Plug-in

Detector Bases for base selection and wiring instructions.

System Sensor has a variety of detector bases available for

Specifications

Size

Height: 1.7 inches (43 mm)

Diameter: 4.0 inches (101 mm)

Weight: 3.6 oz. (102 g)

Operating Temperature Range: 0°C to 49°C (32°F to 120°F)

Operating Humidity Range: 10% to 93% Relative Humidity noncondensing

Latching Alarm: Reset by momentary power interruption.

this smoke detector, including 2-wire applications with and

without relays and/or current limiting resistors, 4-wire and

120VAC applications.

All bases are provided with screw terminals for power,

ground, remote annunciator connections and relay contact

connections, if applicable. The electrical ratings for each

detector-base combination are also included in the base

installation instructions.

Installation

NOTE: All wiring must conform to applicable local codes,

ordinances, and regulations.

NOTE: Verify that all detector bases are installed, that

the initiating-device circuits have been tested, and

that the wiring is correct. (Refer to detector base

manual for testing procedure.)

WARNING

Remove power from initiating-device circuits before install-

ing detectors.

1. Install detectors:

a. Place the detector into the detector base.

b. Turn the detector clockwise until the detector drops

into place.

c. Continue turning detector clockwise to lock it in

place.

2. Tamper Resistance: The detector bases can be made tam-

per resistant. When capability is enabled, detectors can-

not be removed from the base without the use of a tool.

See the detector base installation manual of the detector

base for details in using this capability.

3. After all detectors have been installed, apply power to

the control unit.

D100-04-00 2 I56-581-07R

4. Test the detector using the magnet as described under

TESTING.

5. Reset the detector at the system control panel.

6. Notify the proper authorities that the system is back on

line.

CAUTION

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 enter-

ing the detector. Therefore, System Sensor recommends the

removal of detectors before beginning construction or other

dust producing activity.

Be sure to remove the dust covers from any sensors that

were left in place during construction as part of returning

the system to service.

CAUTION

Smoke detectors are not to be used with detector guards

unless the combination has been evaluated and found

suitable for that purpose.

Testing

Before testing, notify the proper authorities that the smoke

detector system is undergoing maintenance and will tem-

porarily be out of service. Disable the zone or system

undergoing maintenance to prevent unwanted alarms.

Detectors must be tested after installation and as part of

periodic maintenance. Test the 2151 as follows:

NOTE: Before testing the detector, check to ensure the

LEDs blink. If they do not, the detector has lost

power (check the wiring) or it is defective (return

it for repair).

LED

LED

T

EST MODULE

SOCKET

TEST

MAGNET

PAINTED

SURFACE

Figure 1. Bottom and side views showing position of test magnet:

A. Test Magnet (p/n M02-04-01 or M02-09-00)

1. Place the magnet against the cover in the location

designated by the raised mark to activate the test fea-

ture (see Figure 1).

2. The LEDs should latch ON within 5 seconds indicat-

ing alarm and annunciating the panel.

B. Test Module ( MOD400R)

Use the MOD400R with a DMM or voltmeter to check

the detector sensitivity as described in the MOD400R

manual.

C. Aerosol Generator (Gemini 501)

Set the generator to represent 4% to 5%/ft. obscuration

as described in the Gemini 501 Manual. Using the bowl-

shaped applicator, apply aerosol until unit alarms.

Notify the proper authorities that the system is back on

line.

Detectors that fail these tests should be cleaned as described

under MAINTENANCE and retested. If the detectors still

fail these tests, they should be returned for repair.

Maintenance

It is recommended that the detector be removed from

its mounting base to facilitate cleaning. The detector is

cleaned as follows:

NOTE: Before removing the detector, notify the proper

authorities that the smoke detector system is

undergoing maintenance and will be temporarily

out of service. Disable the zone or system undergo-

ing maintenance to prevent unwanted alarms.

C0627-00

D100-04-00 3 I56-581-07R

SENSING

CHAMBER

SENSING

CHAMBER

COVER

SENSOR

SCREEN

COVER REMOVAL

TABS

SENSOR

COVER

Figure 2:

C0253-00

1. Remove the detector cover by prying away the four

side tabs with a small-bladed screwdriver, and then

pulling the cover from the base.

2. Vacuum the screen carefully without removing it. If

further cleaning is required continue with Step 3, oth-

erwise skip to Step 8.

3. Remove the screen assembly by pulling it straight out

(see Figure 2).

4. Remove the sensing chamber cover by pulling it

straight out.

5. Clean the vaned chamber piece by vacuuming or

blowing out dust and particles.

6. Replace the sensing chamber cover, aligning the arrow

on the top with arrow on the printed circuit board.

7. To replace the screen, place it over the chamber

assembly, turning it until it snaps into place.

8. Replace the cover using the test module socket and

LEDs to align the cover and then gently pushing it

until it locks into place.

9. Reinstall the detector.

10. Test the detector as described in TESTING.

11. Reconnect disabled circuits.

12. Notify the proper authorities that the system is back

on line.

Special Note Regarding Smoke Detector Guards

Smoke detectors are not to be used with detector guards

unless the combination has been evaluated and found

suitable for that purpose.

D100-04-00 4 I56-581-07R

©2004 System Sensor

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 obliga-

tion 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

Please refer to insert for the Limitations of Fire Alarm Systems

Three-Year Limited Warranty

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,

modifications, 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 neg-

ligence 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 specific legal rights, and

you may also have other rights which vary from state to state.