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Hochiki
Rökdetektor
ALN-V
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Technical Bulletin Analog 2
JULY 2016
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
Produktspecifikationer
| Varumärke: | Hochiki |
| Kategori: | Rökdetektor |
| Modell: | ALN-V |
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