System Sensor 4WTR-B Bedienungsanleitung

System Sensor Rauchmelder 4WTR-B

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3825 Ohio Avenue, St. Charles, Illinois 60174

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

www.systemsensor.com

INSTALLATION AND MAINTENANCE INSTRUCTIONS

Photoelectric Smoke Detector

2-Wire: 2WTR-B (Form C Relay), 2WTA-B (Sounder)

4-Wire: 4WTR-B (Form C Relay), 4WTA-B (Sounder)

4WTAR-B (Form C Relay, Sounder), 4WITAR-B (Isolated Thermal, Form C Relay, Sounder)

Series

BEFORE INSTALLING

Please read thoroughly System Sensor’s Applications Guide for System Smoke

Detectors (SPAG91), which provides detailed information on detector spacing,

placement, zoning, wiring, and special applications. This is available online

from System Sensor’s web site: www.systemsensor.com.

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

IMPORTANT: This detector must be tested and maintained regularly follow-

ing National Fire Protection Association (NFPA) 72 National Fire Alarm Code

requirements. At a minimum, cleaning should be performed annually.

GENERAL DESCRIPTION

Models 2WTR-B and 2WTA-B are 2-wire photoelectric smoke detectors; models

4WTR-B, 4WTA-B, 4WTAR-B, and 4WITAR-B are 4-wire photoelectric smoke

detectors. All models incorporate a state-of-the-art optical sensing chamber

and an advanced microprocessor. The microprocessor allows the detector to

automatically adjust its sensitivity back to the factory setting when it becomes

more sensitive due to contaminants settling in its chamber. In order for this

feature to work properly, the chamber must never be opened while power is

applied to the smoke detector. This includes cleaning, maintenance or screen

replacement. All models also feature a restorable, built-in, fixed temperature

(135°F) thermal detector and are also capable of sensing a freeze condition if

the temperature is below 41°F.

Models 2WTA-B, 4WTA-B, 4WTAR-B, and 4WITAR-B contain a piezoelectric

horn which generates the ANSI S3.41 temporal pattern in an alarm condition.

All detectors on a zone will sound when the power supply to them is reversed.

The RRS-MOD can be used for the power supply reversal function. The RRS-

MOD also enables all the detectors’ sounders on a zone to be synchronized

and allows the zone to be silenced from the panel by entering the alarm si-

lence key at the keypad.

The detector that initiated the alarm condition will have its red LED and Form

C relays (if applicable) latched until reset by panel.

The model 4WITAR-B photoelectronic smoke sensor is isolated from the fixed-

temperature heat sensor, providing a self-resetting, local audible smoke alarm

that does not alarm at the panel. Only the fixed-temperature heat sensor will

cause the 4WITAR-B to initiate an alarm at the panel and the relay to change

its state.

NOTE: In order for all i3 sounder detectors on a loop to sound when the panel

alarms, the supply voltage polarity must be reversed. A reversing relay, System

Sensor model number RRS-MOD, must be used. The RRS-MOD is designed

to allow all i3 Series detectors in the same loop to sound when one of the

detectors goes into alarm. In addition, the RRS-MOD will synchronize all of

the i3 Series sounder smoke detectors on the loop. Some panels may require

the use of programmable outputs. Refer to System Sensor literature for further

information on the RRS-MOD.

All i3 Series detectors are designed to provide open area protection. Two-wire models

must be used with compatible UL Listed panels only.

ELECTRICAL SPECIFICATIONS

2-wire 4-wire

System Voltage –Nominal: 12/24 12/24 V

(Non-polarized for 2WTR-B and 4WTR-B)

Min.: 8.5 10 V

Max.: 35 35 V

Max. Ripple Voltage: 30 30 % peak to peak of applied voltage

Avg. Standby Current: 50 50 µA average

Peak Standby Current: 100 — µA

Max. Alarm Current

4WTA-B, 4WTR-B: — 35 mA

4WTAR-B, 4WITAR-B: — 50 mA

2WTR-B: 130 — mA panel must limit current

2WTA-B: 130*

Alarm Contact Ratings: — 0.5 A @ 30 V AC/DC

Form C Contact Ratings: 2 2 A @ 30 V AC/DC

Audible Signal

(temp-3 tone): 85 85 dBA min. in alarm or supply polarity reversed (Sounder units only)

Remote Annunciator Output: 7 — mA maximum

EOL Relay: — 12/24 EOLR-1

Reset Time (min): 0.3 0.3 seconds

Max. Start-up Capacitance: 0.1 — µF

Max. Initial Start-up Time: 45 15 seconds

AlarmVerification** Start-up Time: 15 15 seconds

* Direct Power (Non-reverse Polarity): 130 mA limited by panel.

Reverse Polarity Power: 30 mA for the 2WTA-B in alarm; 12 mA for all other 2WTA-B units on the loop. Add 25 mA for the RRS-MOD reversing relay alarm current.

** Assumes the panel’s alarm veriﬁcation reset time is 10 seconds or less. Should the alarm veriﬁcation reset exceed 10 seconds, use the maximum initial start-up time.

PHYSICAL SPECIFICATIONS

Heat Sensor: 135°F (57.2°C)

Freeze Trouble: 41°F (5°C)

Operating Temperature Range: 32 to 100°F (0 to 37.8°C)

Operating Humidity Range: 0 to 95% RH non-condensing

Storage Temperature Range: –4 to 158°F (–20 to 70°C)

Diameter (including base): 5.3 inches

Height (including base): 2.0 inches

Weight: 7.1 oz.

I56-2170-010

1 I56-2170-010

02-20

When used with an “i3 Ready” control panel or the i

3 Series 2W-MOD2 mod-

ule (refer to installation manual), the 2WTR-B and 2WTA-B are capable of

generating a “maintenance needed” signal. The 2W-MOD2 can indicate a need

for cleaning, replacement, or a freeze trouble at the control panel or module.

WARNING

The 2W-MOD2 has replaced the previous model number 2W-MOD. To ensure

proper remote maintenance signaling capabilities, do not use the 2W-MOD

with i3 model numbers 2WTR-B and 2WTA-B.

Installation of the 2WTR-B, 2WTA-B, 4WTR-B, 4WTA-B, 4WTAR-B, and

4WITAR-B detectors is simplified by the use of a mounting base that may

be pre-wired to the system, allowing the detector to be easily installed or re-

moved. The mounting base installation is further simplified by the incorpora-

tion of features compatible with drywall fasteners.

Two LEDs on the detector provide a local visual indication of the detector’s status:

TABLE 1: DETECTOR LED MODES

Green LED Red LED

Power-up Blink 10 sec Blink 10 sec

Normal (standby) Blink 5 sec —

Out of sensitivity Blink 5 sec—

Freeze Trouble Blink 10 sec—

Alarm — Solid

During an initial power-up delay, the red and green LEDs will blink synchro-

nously once every ten seconds. It will take approximately 80 seconds for the

detector to finish the power-up cycle (see Table 2).

TABLE 2: POWER-UP SEQUENCE FOR LED STATUS INDICATION*

Condition Duration

Initial LED Status Indication 80 seconds

Initial LED Status Indication

(if excessive electrical noise is present)

4 minutes

*Refer to Electrical Specifications for start-up time in conjunction with panel

alarm verification.

NOTE: If, during power-up, the detector determines there is excessive electri-

cal noise in the system such as those caused by improper grounding of the

system or the conduit, both LEDs will blink for up to 4 minutes before display-

ing detector status (see Table 2).

After power-up has completed and the detector is functioning normally within

its listed sensitivity range, the green LED blinks once every five seconds. If the

detector is in need of maintenance because its sensitivity has shifted outside

the listed limits, the red LED blinks once every five seconds. When the detec-

tor is in the alarm mode, the red LED latches on. The LED indication must not

be used in lieu of the tests specified under Testing. In a freeze trouble condi-

tion, the red LED will blink once every 10 seconds (refer to Table 1).

To measure the detector’s sensitivity, the i3 Series Model SENS-RDR Infrared

Sensitivity Reader tool (see Figure 4) should be used. Refer to instructions

manual D100-98-00 for the proper use of the SENS-RDR.

Models 2WTR-B and 2WTA-B also include an output that allows an optional

Model RA400Z/RA100Z Remote Annunciator to be connected.

MOUNTING

General spacing guidelines are 30˝×30 , with each detector covering 900 ft˝ 2

under maximum conditions.

Consult NFPA 72, the local Authority Having Jurisdiction (AHJ), and/or ap-

plicable codes for specific information regarding the spacing and placement

of smoke detectors.

Each i3 Series detector is supplied with a mounting base that can be ceiling- or

wall-mounted:

1. To a single gang box, or

2. To a 31⁄2-inch or 4-inch octagonal box, or

3. To a 4-inch square box with a plaster ring, or

4. Direct mount or to ceiling using drywall fasteners.

FIGURE 1: MOUNTING OF DETECTOR

S0121-00

The i3 Series heads and bases are keyed so that all heads will only fit into

their respective bases. One model 4-wire relay base will accept the 4WTR-B,

4WTAR-B and 4WITAR-B detector heads and no others. The 2WTR-B, 2WTA-B

and 4WTA-B will only fit into their respective mounting bases and no others.

The heads and bases are clearly identified as either 2-wire or 4-wire. When

mounting the i3 Series, ensure that the head is mounted to the correct base,

and the test switch is aligned with the tamper release tab.

TAMPER-RESISTANT FEATURE

The i3 Series detectors include a tamper-resistant feature that prevents re-

moval from the mounting base without the use of a tool. To engage the tam-

per-resistant feature, cut the small plastic tab located on the mounting base

(Figure 2), and then install the detector. To remove the detector from the base

once it has been made tamper resistant, use a small screwdriver to depress the

square tamper release tab, located on the skirt of the mounting base, and turn

the detector counterclockwise.

INSTALLATION GUIDELINES

The i3 Series detectors represent an advancement over the previous sounder

and Form C relay models and are designed to be used with the 2W-MOD2 and

RRS-MOD only. Do not mix detector models on a zone.

FIGURE 2: TAMPER-RESISTANT FEATURE

SNA OFF TAB FORP

TAMPER LOCK

TAMPER RELEASE BTA

DIRECT MOUN HOLEST

S0109-00

WIRING INSTALLATION GUIDELINES

All wiring must be installed in compliance with the NFPA 70, National Electri-

cal Code, applicable state and 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 the alarm control panel 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 terminals in the mounting base will accept 14–22 gauge wire. For

best system performance, all wiring should be installed in separate grounded

conduit; do not mix fire alarm 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 approximately 1⁄4-inch of insulation

from the end of the feed wire, inserting it into the proper base terminal, and

tightening the screw to secure the wire in place. Do not put wires more than 2

gauge apart under the same clamping plate.

TWO-WIRE COMPATIBILITY

System Sensor two-wire smoke detectors are marked with a compatibility

identifier located on the label on the back of the product. For two-wire mod-

els 2WTR-B and 2WTA-B, connect detectors only to compatible alarm control

panels as identified by System Sensor’s two-wire compatibility chart, available

at www.systemsensor.com.

NOTE: Models 2WTR-B and 2WTA-B are not to be installed on initiating cir-

cuits containing other makes/models of smoke detectors.

NOTE: Style D initiating circuits require the use of a 2W-MOD2 for models

2WTR-B and 2WTA-B.

2 I56-2170-010

02-20

WIRING DIAGRAMS

FIGURE 3A: WIRING DIAGRAM, 2WTR-B AND 2WTA-B

2-WIRE

ZONE

2-WIRE

CONTROL

PANEL

–

(5) RA –

(4) RA +

(3) – IN/OUT

(2) + OUT

(1) + IN

RA400Z

EOL

RESISTOR

OPTIONAL

RELEASING

DEVICE

(6) NC

(7) C

(8) NO

NOT INCLUDED ON

2WTA-B MODEL

S0122-00

NOTE: FOR ALL COMPATIBLE ADEMCO PANELS, DO NOT EXCEED 30 OHMS

LINE IMPEDANCE.

NOTE: ONLY ONE 2WTR-B DETECTOR PER ZONE CAN BE USED.

NOTE: Only one 2WTA-B detector shall be installed on a zone, unless the

panel switches the zone to a reverse polarity, non-current limited power sup-

ply. For panels that do not provide this feature, a reversing relay, System Sen-

sor model RRS-MOD, may be used. When utilized with the 2WTA-B, it allows

for more than one detector 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 RRS-MOD. The 2WTA-B detector shall not be mixed with

other 2-wire detectors on the same zone.

CAUTION

Any 2-wire i3 smoke detector (2W-B, 2WT-B, 2WTA-B, or 2WTR-B) wired

in the Style D initiating device circuit (IDC) configuration requires the use

of a 2W-MOD2 module. This is because fire alarm control panels vary by

manufacturer on the implementation of Style D circuits. Therefore, the only

way to insure proper operation of 2-wire i

3 smoke detectors (2W-B, 2WT-B,

2WTA-B, or 2WTR-B) on Style D IDC’s is to use a 2W-MOD2 module. Refer to

the 2W-MOD2 installation manual, document D500-46-00, for Style D wiring

diagrams. The 2W-MOD2 installation manual may be downloaded from the

System Sensor web site at www.systemsensor.com.

FIGURE 3B: WIRING DIAGRAM, 4WTR-B, 4WTA-B, 4WTAR-B, AND

4WITAR-B

AUX OR

SMOKE

POWER

IDC

4-WIRE

CONTROL

PANEL

–

(5) A

(4) A

(3) – IN/OUT

(2) + OUT

(1) + IN

EOL

RELAY

( EOLR-1)

EOL

RESISTOR

(5) A

(4) A

(3) – IN/OUT

(2) + OUT

(1) + IN

NOT INCLUDED ON

4WTA-B MODEL

NOT INCLUDED ON

4WTA-B MODEL

OPTIONAL

RELEASING

DEVICE

(6) NC

(7) C

(8) NO

OPTIONAL

RELEASING

DEVICE

(6) NC

(7) C

(8) NO

S0123-01

INSTALLATION

WARNING

Remove power from alarm control unit or initiating device circuits before in-

stalling detectors.

NOTE: To install units so that corresponding LEDs are lined up, refer to the

“Green LED” indicator on the base.

1. Wire the mounting base screw terminals per Figure 3a or Figure 3b, as

applicable.

2. Place detector on the base and rotate clockwise. The detector will drop

into the base and lock into place with a “click”.

3. After all detectors have been installed, apply power to the alarm control unit.

4. Test each detector as described in Testing.

5. Reset all the detectors at the alarm control unit.

6. Notify the proper authorities that the system is in operation.

CAUTION

Dust covers are an effective way to limit the entry of dust into the smoke

detector sensing chamber during construction. However, they may not com-

pletely prevent airborne dust particles from entering the detector. Therefore,

System Sensor recommends the removal of detectors before beginning con-

struction or other dust producing activity. When returning the system to ser-

vice, be sure to remove the dust covers from any detectors that were left in

place during construction.

CAUTION

Smoke detectors are not to be used with detector guards unless the combina-

tion has been evaluated and found suitable for that purpose.

CAUTION

When using the RRS-MOD with model 2WTA-B, do not mix the 2WTA-B with

other model smoke detectors and dry contact closure devices, including me-

chanical heat detectors, manual pull stations and waterflow switches. Such

mixing can cause a direct short on the auxiliary power terminals, damaging

the control panel’s internal circuitry and/or damage devices connected to the

initiating device circuit.

TESTING

Detectors must be tested after installation and following maintenance.

NOTE: Before testing, notify the proper authorities that maintenance is being

performed and the system will be temporarily out of service. Disable the zone

or system undergoing maintenance to prevent any unwanted alarms.

Ensure proper wiring and power is applied. After power up, allow 80 seconds

for the detector to stabilize before testing.

Test i3 Series detectors as follows:

A. TEST SWITCH

1. An opening for the recessed test switch is located on the detector hous-

ing (See Figure 4).

2. Insert a small screwdriver or allen wrench (0.18˝ max.) into the test

switch opening; push and hold.

3. If the detector is within the listed sensitivity limits, the detector’s red

LED should light within one second.

FIGURE 4: RECESSED TEST SWITCH OPENING AND SENS-RDR POSITION

POSITION SENS-RDR AN ANGLE ON AT

THE AL AREA OR THE CHAMBER OV AT

OPENING BY THE WORD “PAINT”

PUSH RECESSED

SWITCH WITH A

0.18 MAX. ≤

DIAMETER TOOL

RECESSED

TEST SWITCH

LED

S0110-00

B. SMOKE ENTRY TEST

Canned aerosol simulated smoke (canned smoke agent) may be used for smoke entry

testing of the smoke detector. Tested and approved aerosol smoke products are:

MANUFACTURER MODEL

Home Safeguard Industries 25S, 30S

SDi CHEK02 and CHEK06

SDi SOLOA4

SDi SMOKESABRE-01

When used properly, the canned smoke agent will cause the smoke detector to go

into alarm. Refer to the manufacturer’s published instructions for proper use of the

canned smoke agent.

3 I56-2170-010

02-20

Produktspezifikationen

Marke:	System Sensor
Kategorie:	Rauchmelder
Modell:	4WTR-B

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