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Technical Bulletin Analog 2

JULY 2016

Pg 1 of 6

Analog 2

Introduction

These instructions apply to all sensors listed on this Technical Bulletin for maintaining, cleaning and testing. Failure to

following these instructions may result in the failure of the sensors to initiate an alarm condition. Hochiki America Corporation

is not responsible for sensors that have been improperly maintained, cleaned or tested.

Features

ALN-V photoelectric smoke chamber detects smoldering/fast-ﬂaming ﬁres

ATJ-EA combination ﬁxed/rate of rise heat sensing element detects both ﬁxed/rate of rise temperature

ACC-V multi-criteria photoelectric smoke chamber and heat sensing element detects smoldering or fast-ﬂaming ﬁres

and ﬁxed temperature

ACD-V multi-criteria photoelectric smoke chamber, combination ﬁxed/rate of rise heat sensing element, and carbon

monoxide (CO) detects smoldering/fast-ﬂaming ﬁres, ﬁxed/rate of rise temperatures, and poisonous carbon monoxide

(CO) gas.

The combination of a high signal-to-noise ratio and sensitivity stability make this sensor eﬀective in a wide range of

environmental conditions

User programmable alarm thresholds

A reliable and fully digital transmission method, which is highly immune to noise

The control panel is able to verify the status of any device. Whether the device is dirty or approaching an alarm

condition, it can make this determination routinely

It is possible to assign a priority to any device that is deemed necessary by the nature of the systems design

There is an interrupt sequence, which can assign priority to ﬁre and other similar signals

ALN-V ATJ-EA ACC-V ACD-V

SENSOR SPECIFICATIONS

CATEGORY SMOKE SENSORS HEAT SENSOR MULTI-CRITERIA SENSORS

Model ALN-V ATJ-EA ACC-V ACD-V

Operating

Voltage Range

(S-SC)

17 - 39.5 VDC 24 - 41.0 VDC

Sensitivity

Range

300 fpm: 0.70 - 4.00 %/ft*

2000 fpm: 0.70 - 3.86 %/ft**

4000 fpm: 0.70 - 2.65 %/ft**





300 fpm: 0.70 - 4.00 %/ft*

2000 fpm: 0.70 - 3.86 %/ft**

4000 fpm: 0.70 - 2.65 %/ft**

300 fpm: 0.77 - 3.47 %/ft*

2000 fpm: 0.77 - 3.56 %/ft**

4000 fpm: 0.77 - 4.00 %/ft**

Current

Consumption

(S-SC)

450



350



450



600

30 mA Max. Alarm Current

Device Type

Code 88 Hex 98 Hex D8 Hex D9 Hex

Operating

Temperature

















UL Listed

Ambient

Temperature

















Storage

Temperature

















Dimension 3.94"D X 1.56"H 3.94"D X 1.56"H 3.94"D X 1.56"H 3.94"D X 1.56"H

Environment Indoor Use Only Indoor Use Only Indoor Use Only Indoor Use Only

Visual Alarm/

Power Indicator Dual LED Dual LED Dual LED Dual LED

CO Sensor

Response Time N/A N/A N/A 70 ppm 60 - 240 min.





Testing Equipment Testiﬁre 1000 or 2000 w/TS3 Testiﬁre 1000 Testiﬁre 1000 or 2000 w/TS3 Testiﬁre 1000 or 2000 w/TS3 & TC3

24 - 41.0 VDC17 - 39.5 VDC

Placement of sensors

This section explains how to determine the number of sensors are needed, and where to place them. By following the

guidelines listed in the NFPA 72, base the number and location of sensors on an engineering survey of the area to be

protected.

Factors to consider:

Contents to be protected

Type of construction and use of structure

Human occupancy

Burning characteristics of contents

Space involved

Height of ceiling

Surface condition of ceiling

Total area

Air movement (stratiﬁcation)

Vent location (velocities and dilution

Deﬂections and obstructions

Sensor Location:

One smoke sensor covers 450 to 900 square feet

One heat sensor covers up to 2500 square feet

Consider local conditions and codes along with engineering evaluations to determine the proper spacing and

speciﬁcation

WARNING: Heat sensors are not life safety devices. Smoke sensors are recommended where life safety is a factor

Examples:

1. You may use 30' spacing on smooth ceilings for smoke sensors

2. You may use 70' spacing on smooth ceilings for heat sensors

3. Beams or other obstructions extending more than 18" below the ceiling reduce the eﬀective range of the sensors. Such

obstruction should designate a new separation point and be considered a border for a new section.

4. Beams or other obstructions extending more than 8" but less than 18" require reduced spacing at the perpendicular of

the obstructions.

NOTE: For information on diﬀering styles of construction consult the NFPA handbook, section 72.

WARNING: Do not install Hochiki smoke sensors in the following areas:



Closer than 4" to any side wall

Where forced ventilation can dilute the smoke from a ﬁre

In known areas of combustion such as kitchens or furnace rooms

Testing

Photoelectric/Heat/Multi-Criteria Sensors:

For a smoke sensor to operate eﬃciently, the combustion products must enter the outer chamber. Air ﬂow, stratiﬁcation,

velocity, stagnation, and migration all aﬀect the eﬃciency and accuracy of the sensor. Use a air ﬂow meter to determine the

movement of the air within a structure. Field testing equipment is available from Hochiki America for testing the function of the

sensors. Consult local codes and ordinances for maintenance requirements. Hochiki America Corporation recommends a

bi-annual functional testing and visual inspection. See the Tester section in this Technical Bulletin and the control panel

manual for additional information.

JULY 2016

Pg 2 of 6

Analog 2

Specyfikacje produktu

Marka:	Hochiki
Kategoria:	czujnik dymu
Model:	ACC-V

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