Hochiki YBN-R/3(WHT)-SCI User Manual download pdf

2-3-0-1499/ISS2/JAN13

HOCHIKI YBN-R/3(SCI) SHORT-CIRCUIT ISOLATOR

BASE INSTALLATION INSTRUCTIONS

General Description

The YBN-R/3(SCI) is a sensor mounting base featuring an integral short-circuit isolator which

will detect and isolate short-circuits on the loop. When a short-circuit is detected during power up the unit will drop

the power to the rest of the loop.

The YBN-R/3(SCI) is compatible with the ESP range of sensors (see compatibility chart below). The unit does not

require a loop address. A remote fire LED facility is provided when a sensor is attached to the base.

Note:- A fitted sensor will still be powered when this device is isolating.

Specifications

Ordering code YBN-R/3(SCI)

Protocol ESP

Operating Voltage 17 - 41 V dc (24 V dc nominal)

Standby current 60 µA

Current drawn by isolator during fault condition < 4 mA

Maximum current consumption from remote LED 10 mA (limited by attached sensor)

Maximum continuous current 1 A

Maximum quantity per loop 127*

Ambient temperature range

-10 C to +50 C

Relative humidity

10% to 95% RH (at 40C)

Colour and case material Ivory or White ABS

Fixing centres 48 mm through to 74 mm

Maximum wire thickness 2.5 mm²/terminal

Weight 79 g

Check with Fire alarm control panel manufacturer for

maximum loop quantities

See AP0127 for short-circuit isolator specifications

Compatibility

The YBN-R/3(SCI) isolator base has been designed to work with the sensors listed below. All sensors are

compatible with Hochiki ESP (Enhanced System Protocol).

Sensor Type Ordering Code

Photoelectric (smoke) sensor ALG-E, ALG-EN, ALK-E, ALN-E (and all variants)

Ionisation (smoke) sensor AIE-E (and all variants)

Temperature (heat) sensor ATG-E, ACB-E, ATJ-E (and all variants)

Multi (smoke and/or heat) sensor ACA-E, ACC-E (and all variants)

Precautions

 Ensure that this device is installed in accordance with local standards or regulations.

 Only install in suitable environments, the following should be avoided : -

 Excessive ambient temperature.

 Where excessive condensation or moisture is present.

 Hazardous areas.

 Do not use a high voltage tester on these devices.

 Ensure that the YBN-R/3(SCI) base isolator is securely fixed to the ceiling or other suitable surface.

 Ensure that the terminals on the unit are securely fastened.

 When fitting the YBN-R/3(SCI) isolator base, for proper wiring supervision, ensure that the cables are routed

through the base terminals and not spurred off a main wiring route.

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Summary of Contents

Page 1 - Precautions

2-3-0-1499/ISS2/JAN13 HOCHIKI YBN-R/3(SCI) SHORT-CIRCUIT ISOLATOR BASE INSTALLATION INSTRUCTIONS General Description The YBN-R/3(SCI) is a sensor mou

Page 2

2-3-0-1499/ISS2/JAN13 Wiring The wiring of the YBN-R/3(SCI) short circuit isolator base should be made as shown right: A: Loop (+) B: Loop (-) C: Ca

Related models: YBN-R/3(SCI)

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Hochiki YBN-R/3(WHT)-SCI User Manual

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Summary of Contents

Related models: YBN-R/3(SCI)

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