System Sensor B501BH Manuale utente

D650-03-00 1 I56-491-06R

B501BH Sounder Base

INSTALLATION AND MAINTENANCE INSTRUCTIONS

3825 Ohio Avenue, St. Charles, Illinois 60174

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

www.systemsensor.com

Before Installing

Please read the System Smoke Detector Application Guide,

which provides detailed information on sensor spacing.

placement, zoning, wiring. and special applications. Copies

of this manual are available from System Sensor. NFPA 72

and NEMA guidelines should be observed.

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 should be cleaned at least once a year.

General Description

The B501BH sounder base is used with System Sensor 200

and 500 Series sensor heads. Refer to the appropriate man-

ual for more information on sensors.

Specifications

Base Diameter: 6.0 inches (15.2 cm)

Base Height (less sensor): 2.3 inches (5.9 cm)

Weight: 0.4 lb. (181 gm)

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

Operating Humidity Range: 10% to 93% Relative Humidity

Electrical Ratings

External Supply Voltage: 17 to 32 VDC

Standby Current: 1.0 mA maximum

Alarm Current: 15 mA maximum

Maximum Ripple Voltage: 10% of supply voltage

Start-up Capacitance: 200 µF

Communication/Initiating Loop Supply

Current Draw from Remote Output

of Sensor to turn on Horn: 700 µA maximum

Sound Output: Greater than 90 dBA measured in anechoic room at 10 feet, 24 volts. 85 dBA

minimum measured in UL reverberant room.

The sounder base is intended for use with intelligent sys-

tems. Refer to the panel manual for the maximum allow-

able number of units per loop. The sounder base requires

an external 24VDC supply with reverse polarity capability.

The connections for the external supply (terminals 1 and 2)

and the communication loop (terminals 3 and 4) are iso-

lated to prevent electrical interaction between them.

When the sensor’s visible LEDs are latched on for approx-

imately 10 seconds, the associated horn sounds. A loop of

horns can be made to sound by reversing the polarity of the

external supply.

NOTE:When not used as a supplementary evacuation sys-

tem, the external 24 VDC supply shall be treated as

a component of the main power supply system and

shall fall under the requirements of the main

power supply system per NFPA 72.

D650-03-00 2 I56-491-06R

B501BH Terminals

No. Function

1 External Supply Positive (+)

2 External Supply Negative (–)

3 Negative (–) Comm. Line In and Out

4 Positive (+) Comm. Line In and Out

5 Sounder Base Interconnect

Terminals 3 and 4 are used for the communication circuit.

Mounting

Mount the B501BH directly to an electrical box, using the

mounting kit, supplied (see Figure 2).

The sounder base is 1.1-inches deep. Electrical boxes must

be 4-inches square by at least 11⁄2inches deep - 21⁄8inches

is recommended.

NOTE: A maximum space of 1⁄8inch from the outside edge

of the electrical box to the inside edge of the dry-

wall or ceiling tile is allowable.

Wiring Guidelines

All wiring must be installed in compliance with the

National Electrical Code and the local codes having juris-

diction and must not be of such length or wire size which

would cause the base to operate outside of its published

specifications. The conductors used to connect smoke sen-

sors to control panels and accessory devices should be

color coded to reduce the likelihood of wiring errors.

Improper connections can prevent a system from respond-

ing properly in the event of a fire.

For signal wiring (the wiring between interconnected sen-

sors or modules), it is recommended that the wire be no

smaller than 18 gauge (1.0 square mm). Wire sizes up to

12 gauge (2.5 square mm) may be used with the base. For

best system performance, the power (+ and –) wires and

the communication circuit wires should be twisted pair or

shielded cable installed in separate grounded conduit to

protect the communication loop from electrical interfer-

ence.

Make wire connections by stripping about 3⁄8" of insulation

from the end of the wire. Then, slide the bare end of the

wire under the clamping plate, and tighten the clamping

plate screw. Do NOT loop the wire under the clamping

plate (See Figure 3).

The zone wiring of the sensor base should be checked

before the sensor heads are installed. Check the wiring for

continuity and polarity in the base.

See the individual sensor manual for the maximum sensor

installation temperature.

Figure 1. Terminal layout:

Figure 2. Mounting:

MOUNT B501BH

TO ELECTRICAL BOX

4 INCH SQUARE BOX

A78-1993-02

Figure 3:

D650-03-00 3 I56-491-06R

Figure 4. Wiring diagram:

Horn Grouping

UL has approved horn grouping for up to six B501BH base

with horn units. When wired as a group, any detector in

the group that has its LED’s latched on by the panel will

cause other B501BH units in the group to sound. Grouping

is accomplished by wiring the grouped devices together

using terminal 5, Sounder Base Interconnect, as shown in

INTELLIGENT

MONITOR

MODULE

(+) 2

(–) 167

U.L.

LISTED

EOL

RESISTOR

47K

U.L.

LISTED

EOL

RELAY

24V

(+) COMM.

(–) COMM.

(–) POWER

(+) POWER

U.L. LISTED COMPATIBLE

CONTROL PANEL

EXTERNAL

24V SUPPLY

CLASS A OPTIONAL WIRING

A78-1990-01

*GROUPING OF UP TO 6 MODEL B501BHT TEMPORAL TONE SOUNDER BASES.

OPTIONAL SOUNDER INTERCONNECT*

Wiring Instructions

NOTE: External supply shown in normal standby configu-

ration in Figure 4.

The wiring diagram for a typical 2-wire intelligent system

is shown in Figure 4 (the monitor module is supervising

the external supply).

Testing

NOTE: Before testing, notify the proper authorities that

the smoke sensor system is undergoing mainte-

nance and, therefore, will be temporarily out of

service. Disable the system undergoing mainte-

nance to prevent unwanted alarms.

Sensors and bases must be tested after installation and as

an integral part of periodic maintenance. Test the B501BH

as follows:

1. Reverse the polarity of the external 24VDC supply. All

B501BH bases on the loop should sound in approximate-

ly 10 seconds.

2. Latch the sensor LED on from the control panel. That

unit’s B501BH should sound in approximately 10 seconds.

NOTES:

1. There is approximately a 10 second delay built into the

B501BH before sounding. This delay is present whether

the control signal comes from the sensor or from the

external power supply polarity being reversed.

2. During automatic testing cycles. the horn may sound if

the associated sensor is left in the test mode with LEDs

latched on for more than 4 seconds. Therefore, it is nec-

essary to complete testing of each sensor within this 4-

second limit to prevent the horn from sounding.

the diagram. Since the grouping is not supervised, the

groups can only be used for supplementary signaling.

NOTE: Grouping horns together can only be used as a sup-

plementary evacuation system. It is not acceptable to group

horns for primary alarm signaling.

D650-03-00 4 I56-491-06R

Three-Year Limited Warranty

System Sensor warrants its enclosed smoke detector base 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 base. No agent, representa-

tive, dealer, or employee of the Company has the authority to increase or

alter the obligations or limitations of this Warranty. The Company’s obli-

gation of this Warranty shall be limited to the repair or replacement of any

part of the smoke detector base which is found to be defective in materi-

als 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, Returns 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, unrea-

sonable use, modifications, or alterations occurring after the date of man-

ufacture. 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 specific legal rights, and

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

Please refer to insert for the Limitations of Fire Alarm Systems

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