Nexa ZSD-109 - Optical Smoke Alarm Manual

Table of Contents

Contents

1 INTRODUCTION
2 TECHNICAL DATA
3 POSITIONING THE SMOKE ALARM
4 LOCATION ON CEILING AND WALL
5 INSTALLATION
6 TEST
7 CONNECT TO A Z-WAVE NETWORK
8 ADVANCED Z-WAVE CONFIGURATION
9 RESTORE FACTORY SETTINGS
10 OPERATION
11 PAUSE FUNCTION
12 REPLACING THE BATTERIES
13 COMMON CAUSES OF FALSE ALARMS AND HOW TO AVOID THEM
14 SMOKE ALARM WARRANTY
15 CLEANING AND MAINTENANCE
16 RECYCLING
17 TROUBLESHOOTING
18 OVERVIEW
19 Documents / Resources
- 19.1 References
- 19.2 Download manual

INTRODUCTION

This instruction leaflet contains important information about the correct installation and operation of your fire alarm. Read the whole leaflet carefully before starting installation and keep it for future reference.

The Nexa ZSD-109 fire alarm is designed to sense smoke particles. It has a built-in temperature sensor to provide an early warning if a fire should break out (assuming correct placement and maintenance).
Principal properties:

Built-in temperature alarm
Elevated sensitivity and stability
Test and pause function
LED-diode indicates normal operation
Low-battery signal

TECHNICAL DATA

Battery type:	2 x 1.5 V AA
Protocol	Z-Wave
Range, unobstructed	up to 30 m
Alarm signal	85 dB(A) at 3 metres
Operating temperature	5°C–45°C
Ambient humidity	10–90%
Temperature sensors	54–70°C

The radio range may vary depending on the placement, the design of the building and the construction materials used.
Never remove or disconnect the battery to interrupt a false alarm, as this will result in the fire alarm losing its key functions. Open a window or ventilate the area around the fire alarm to stop the alarm, and/or press the Pause button.
The fire alarm is intended for use in a single residence building. In multi-residence buildings, each residence must be fitted with its own fire alarm.
This fire alarm is not suitable for use in buildings that are not residences. The fire alarm is not a replacement for a comprehensive alarm system as required by law or the fire authorities.
The fire alarm detects combustion particles in the air (smoke). It does not react to flames or gas.
The fire alarm is designed to emit an alarm signal if a fire is developing.

POSITIONING THE SMOKE ALARM

For the smoke alarm to provide an early warning, it has to be installed in the location where the fire starts. Therefore, Nexa recommends that you install smoke alarms in each room and on all floors.

Single-level home: To achieve minimum protection, position the alarm in the entrance hall between the living areas (including the kitchen) and the sleeping areas. Position it as close as possible to the living areas, and make sure the alarm can be heard by anyone in the bedrooms. See Figure 1, for example:

FIGURE 1. Single-level home

Multi-storey home: To achieve minimum protection, position and alarm in the stairwell (at ground level) and another alarm above the landing on the top floor, as well as an alarm on the ceiling in the basement at the foot of the stairs. This covers the basement level, but not crawl spaces and unfurnished attics. See the example in Figure 2.

FIGURE 2. Multi-storey home

Note: There must be an alarm in every room (except the kitchen, bathroom and garage) to provide recommended/ maximum protection. DO NOT POSITION AN ALARM IN THE KITCHEN or BATHROOM as cooking smells or steam may activate the alarm. DO NOT POSITION AN ALARM IN THE GARAGE as there is a risk of it being triggered by exhaust fumes.

LOCATION ON CEILING AND WALL

Ceiling installation

Hot smoke rises and spreads, so installing your smoke alarm in a central location on the ceiling is recommended. Avoid areas where air does not circulate, e.g. corners. Also keep it away from objects that may prevent the free flow of air. Position the device at least 30 cm from light fittings or interior fittings that may prevent smoke/heat reaching the detector. Position it at least 1 metre away from the wall. See Figure 3A.
Ceiling installation
FIGURE 3A

Wall mounting, if ceiling mounting is not possible

Avoid installing the device a long way into a corner. Position the upper edge of the smoke alarm at least 15 cm and no more than 30 cm away from the ceiling. See Figure 3A.

Sloping ceilings

In the case of sloping surfaces or ceilings that move up towards a ridge, the detector must be installed 90 cm from the highest point, measured horizontally, because still air under the ridge may prevent smoke reaching the device. See Figure 3B.
Sloping ceilings
FIGURE 3B

INSTALLATION

Remove the base plate from the rear of the smoke alarm by turning it anti-clockwise.
Insert two AA batteries Make sure to position the poles (+/-) correctly.
Test the smoke alarm and connect it to a Z-Wave network, see below.
Install the base plate in an appropriate place on the ceiling. Position your smoke alarm with care.
Place the smoke alarm on the base plate and turn it clockwise until it clicks into position.

TEST

TEST To test your smoke alarm, press the Test button. The smoke alarm will respond by emitting an alarm signal.

Test both before and after installation to be sure that it functions correctly.
Only use the Test button to test the alarm. Never use an open flame, as this may disrupt the alarm operation.
Test your smoke alarms regularly, once a month.

NBA number of factors can cause disruption to the wireless communication. You should therefore test your smoke alarm once a month to make sure that the communication between the smoke alarm and the Z-Wave controller is functioning as intended.

CONNECT TO A Z-WAVE NETWORK

Inclusion:

Set the Z-Wave controller to "inclusion" mode (see the controller manual)
Press the Test button three times within 1.5 seconds; the LED indicator will light up.
You will then hear a beep, the LED indicator will go out and the smoke alarm is now included in your Z-Wave network.

Exclusion:

Set the Z-Wave controller to "exclusion" mode (see the controller manual).
Press the Test button three times within 1.5 seconds; the LED indicator will light up.
Wait for the Z-Wave controller to complete the exclusion.

ADVANCED Z-WAVE CONFIGURATION

Published under the product name on www.nexa.se

RESTORE FACTORY SETTINGS

Remove the batteries from the smoke alarm.
Press the Test button and keep it depressed while reinserting the batteries. The LED indicator lights up.
Continue to keep the Test button depressed until the LED indicator turns off.
Press the Test button again; you will hear a short beep to indicate that the smoke alarm has been reset.

OPERATION

During normal operation, the smoke alarm light diode flashes every 50 seconds. This indicates that the batteries and the unit are functioning correctly. If the alarm detects smoke, it will emit a loud, pulsating noise and the red light diode will light up with varying intensity until the smoke has been dispersed.

STATUS	RED LED	ALARM SIGNAL
Normal mode	Flashes once every 50 seconds	None
Replace battery/ low battery	Flashes once every 50 seconds	Short audio signal every 50 seconds
Pause mode	Flashes once every 16 seconds	None

PAUSE FUNCTION

The smoke alarm has a combined button for its test and pause functions. You can use the pause function to interrupt the alarm signal if it has been triggered by a false alarm. To activate the pause function, press the Test/Pause button while the unit is emitting its alarm. This will pause the alarm for ten minutes. The smoke alarm will return to normal sensitivity at the end of the 10-minute pause period. If necessary, press the Test/ Pause button again to pause the alarm once more. If you have several smoke alarms connected in series, you can pause all linked units by pressing the Test/ Pause button on the unit that triggered the alarm.

REPLACING THE BATTERIES

How often you need to replace the batteries depends on the type of battery. However, it is a good idea to replace batteries regularly, once a year, and ideally on a set date.

Turn the smoke alarm anti-clockwise to release it from the base plate.
Remove the old batteries.
Insert new batteries. Check that the poles (+/-) are positioned correctly.
Place the smoke alarm on the base plate and turn it clockwise until it clicks into position.
Press the Test button to test the smoke alarm.

COMMON CAUSES OF FALSE ALARMS AND HOW TO AVOID THEM

A smoke alarm detects and reacts to smoke particles in the air. The smoke particles trigger the alarm's audio signal. However, this sensitivity does mean that the smoke alarm also reacts to dust particles, moisture and other particles in the form of pollen, insects, etc. These are the most common causes of false alarms.

SMOKE ALARM WARRANTY

This smoke alarm comes with a limited 3-year warranty against manufacturing defects. (Valid from the date of purchase). The batteries are not covered by the warranty. The warranty liability is limited to the value of a corresponding smoke alarm. Defective smoke alarms must be returned to the dealer together with a description of the problem. Approved complaints will result in replacement with a new smoke alarm of the same or a corresponding type. When submitting a complaint, you must present a receipt proving the date of purchase.

CLEANING AND MAINTENANCE

The smoke alarm should be cleaned regularly, at least twice a year. To clean your smoke alarm, vacuum the exterior along the opening into the optical chamber to remove any dust and dirt.

Do not attempt to open the cover to clean the inside of the smoke alarm. Removing the cover will invalidate the warranty.

RECYCLING

The unit principally consists of recyclable materials.
Do not dispose of the packaging, the unit or the contents of the packaging as household waste; follow the applicable regulations instead.
In compliance with EU Directive 2002/96/CE relating to waste from electrical and electronic equipment (WEEE), this product must be recycled.
For additional information, call the dealer or local authority responsible for waste management

TROUBLESHOOTING

SOURCE OF ERROR	MEASURE
Steam and moisture. False alarms can be triggered if the smoke alarm is positioned too close to bathrooms or laundry rooms, or in other places where the ambient humidity is high.	Position the smoke alarm at least 2 metres from bathrooms, laundry rooms and other places where the ambient humidity is high.
Dust and dirt. As the air flows freely through the detection chamber, the smoke alarm will attract a fair amount of dust and pollen particles. This can trigger false alarms. It can also make the smoke alarm more sensitive, which can likewise result in false alarms.	Vacuum clean the smoke alarm regularly – use a plastic mouthpiece so as not to damage the electronic components. Make sure not to position the smoke alarm in highly dusty or dirty places. Place a "cap" over the smoke alarm or remove it completely if you are carrying out renovation work in your home.
Draughts, dust and air flows. False alarms can be caused by positioning the smoke alarm too close to doors, windows, ventilation systems, fans, air ducts, heat pumps and the like. This can cause dust particles to whirl up and into the detection chamber.	Do not install smoke alarms in draughty places or close to windows and doors, ventilation units, fans, air ducts, heat pumps and the like. Find a more appropriate place for the smoke alarm, farther away from draughts and air flows.
Temperature variations can cause condensation to form in the detection chamber. For example, if the smoke alarm is placed in a room where windows are opened for ventilation in the winter, close to exits, balcony doors or other places where the temperature alternates between hot and cold.	Avoid installing smoke alarms in rooms where the temperature changes rapidly, or close to doors and windows that are often opened and closed. Move the smoke alarm to a place with a more even, stable temperature.
Inappropriate placement. Incorrect placement in an unstable indoor environment, draughts, close to electrical units (EMC) and light fittings can trigger false alarms.	Position the smoke alarm at least 5 metres from open cooking ranges, chimneys and other sources of heat. 2 metres from ventilation ducts, heat pumps and air-conditioning units.1 metre from lights and fluorescent lights.

OVERVIEW

0905-CPR-210624
NEXA20210010
EN14604:2005/AC:2008
Fire alarm for household use

Manufacturer:
Nexa Trading AB, Sverige

The Declaration of performance (DoP) is published on our website – www.nexa.se

NEXA BRIDGE
Using Nexa Bridge and the ZSD-109 fire alarm, you can easily set up an automated system that starts when the fire alarm is activated. For example, you can have a message sent to your smartphone, activate sirens or switch on lights when the fire alarm is triggered.