Nexa Gns-2236/rf User manual

ENG

220~240V AC OPERATED

PHOTOELECTRIC SMOKE ALARM

MODEL: GNS-2236/RF

(With 9V Battery Back-up)

0086-CPR-632447

Nexa13546-CPR-632447

EN14604:2005/AC:2008

Nexa Trading AB, Box 12200, 40242 Gothenburg

Sweden

Fire Safety and installed in buildings

Main Features :

Photoelectric Sensor For Slow

Smoldering Fires

Power / Alarm indicator

HUSH FEATURE

Battery Back Up

Low Battery Warning

Wireless interconnectable (Up To 20

smoke And/Or heat Alarms)

Dip switch for coding

Supplied with Fixing Kit

Loud 85dB Alarm Signal

Dust cover

This instruction leaflet contains important

information on the correct installation and operation

of your heat alarm. Read this leaflet fully before

attempting installation and retain for future

reference.

SPECIFICATION

Power Source : 220-240Vac~ 50-60Hz with

9V battery back-up (battery

included)

Battery Back-up : 9V Alkaline Battery (Gold Peak

1604A, Energizer 522, Duracell

MN1604)

Battery Back-up Life : In the event of a break in the

mains supply the battery will give

detector operation for one month

minimum

Operation Current : <40mA operation (In Alarm)

Transmit & Receive frequency: 868.4MHz

Digital modulation method: GFSK

Transmitting & Receiving distance: over 80M in open space

Transmit data rate : 50Kbps

Coding selection : 16 combinations

Max. wireless interconnection: 20 units

Max. wire interconnection : 40 units

Sensitivity to smoke : 0.65-1.52 % per foot obscuration

Operation Temperature : 0oC-40oC

Ambient Humidity : 10%-90%

Alarm Sound Level : 85 Decibels at 3 metres

PRODUCT DESCRIPTION

GNS-2236/RF is a multiple station photoelectric smoke alarm

with a radio link mounting base which allows it to be

interconnected to other Nexa alarms. (Can be mixed and

matched with the NEXA Photoelectric Smoke Alarm GNS-

2236/RF and MTS-166/RF) The radio link base has both signal

transmitter and receiver built-in. It transmits a Radio

Frequency(RF) alarm signal when the unit detects smoke. When

it receives an RF alarm signal from other unit, it will sound. This

interconnect feature allow up to 20 units to be interconnected

together within 100 meters and thus all alarms will sound when

any one is activated. Using the wireless signal transmission

technology awards wiring location problem and allows the

smoke and heat alarms to be placed futher apart when

compared to a wired installation.

Note: This smoke alarm cannot be connected to any other

device such as a fire alarm panel.

All the Smoke Alarms should be interconnected to ensure the

early warning will be heard, particularly by somebody sleeping. A

properly designed early warning fire system ensures the alarm is

given before the escape routes become blocked with smoke.

LOCATING THE SMOKE ALARM

If your dwelling is on a single storey, for minimum protection

you should fit an alarm in a corridor or hallway between the

sleeping and living areas (incl. Kitchens). Place it as near to

the living areas as possible and ensure the audible alarm can

be heard when the bedrooms are occupied. See Figure 1 for

examples.

If your dwelling is multi-storey, for minimum protection one

alarm should be fitted at the bottom of the staircase with further

alarms fitted on each upstairs landing. This includes

basements but excludes crawl spaces and unfinished attics.

See Figure 2 for examples.

NOTE: For maximum protection an alarm should be fitted in

every room (except kitchen, bathroom and garage).

DO NOT FIT AN ALARM IN THE KITCHEN OR BATHROOM,

as cooking fumes or steam may trigger the alarm.

DO NOT FIT ALARM IN GARAGE, as exhaust fumes are likely

to set it off.

POSITIONING THE SMOKE ALARM

Ceiling Mounting

As hot smoke rises and spread out, it is advisable to mount on

a ceiling in a central position. Avoid areas where there is no air

circulation. E.g. Corners of rooms and keep away from items

which may prevent the free flow of air. Place the unit at least

300 mm from and light fitting or decorative object which might

obstruct smoke entering the alarm. Keep at least 300 mm away

from walls. See Figure 3i.

Wall Mounting

Do not mount tight into the corners. Put the top edge of your

smoke alarm between 150 and 300mm below the ceiling. Keep

at least 300mm from room corners. See Figure 3i

On a Sloping Ceiling

In areas with sloping or peaked ceilings install your Smoke

Alarm 900mm from the highest point measured horizontally

because “dead air” at the apex may prevent smoke from

reaching the unit. See Figure 3ii.

Areas to be avoided include the following :

Situations where the temperature may fall below 0oC or

rise above 40oC

Humid areas such as bathrooms, kitchens, shower

rooms where the relative humidity may exceed 90%

Near a decorative object, door, light fitting, window

molding etc., that may prevent smoke from entering the

alarm.

Fume filled environments such as garages. Exhaust

gases may cause false alarms.

Adjacent to or directly above hot components such as

radiators or wall vents that can effect the direction of air

currents.

In very dusty or dirty environments such as workshops.

Locate unit at least 1.5m and route wiring at least 1m away

for fluorescent light fittings as electrical “noise” and/or

flickering may affect the unit. Do not wire into the same circuit

as fluorescent lights or dimmers.

Do not locate in insect infested areas. Insects and

contamination on the alarm sensor can increase its response

time.

INSTALLING THE SMOKE ALARM

WARNING –This smoke alarm is mains powered and requires

wiring by a qualified electrician in accordance with the current

IEE Regulations for Electrical Installations (BS7671).

The circuit used to power the smoke alarm must be a dedicated

permanent supply that cannot be switched off accidentally by

the normal user. Before installing ensure the electrical supply

is isolated.

WARNING: To prevent injury, this smoke alarm must be

securely attached to the ceiling/wall in accordance with the

installation instructions.

All handwired interconnect smoke alarms must be supplied from a

single power circuit and a common neutral must be used.

WARNING:Do not connect the interconnect wire to Live or

Neutral.

Disconnect the AC main power from the circuit that is going to

be used.

Having established the mounting location install a junction

box suitable for locating the termination point. Ensure that

there is no other electrical wiring or pipe work in the area

adjacent to the mounting surface.

Unlock the detector unit from the base by pushing up the

temporary latch with a screw driver. See Figure 4

Set the coding. Each unit comes a four positions dip

switch(see Figure 6) for coding the transmit and receive

frequency to prevent interference with any other RF

equipment. There are 16 combinations.

Figure 6 –DP Switch setting facility

LANDING

HALL

BATHROOMBEDROOM

LIVING

ROOM

KITCHEN

BASEMENT

LIVING

ROOM

BATHROOM

KITCHEN

BEDROOM

HALL

MAXIMUM PROTECTION

MINIMUM PROTECTION

KEY

FIGURE 1 - SINGLE STOREY DWELLING

FIGURE 2 - 2/3 STOREY DWELLING

Figure 4 –Release Temporary Lock

ENG

220~240V AC OPERATED

PHOTOELECTRIC SMOKE ALARM

MODEL: GNS-2236/RF

(With 9V Battery Back-up)

0086-CPR-632447

Nexa13546-CPR-632447

EN14604:2005/AC:2008

Nexa Trading AB, Box 12200, 40242 Gothenburg

Sweden

Fire Safety and installed in buildings

Main Features :

Photoelectric Sensor For Slow

Smoldering Fires

Power / Alarm indicator

HUSH FEATURE

Battery Back Up

Low Battery Warning

Wireless interconnectable (Up To 20

smoke And/Or heat Alarms)

Dip switch for coding

Supplied with Fixing Kit

Loud 85dB Alarm Signal

Dust cover

This instruction leaflet contains important

information on the correct installation and operation

of your heat alarm. Read this leaflet fully before

attempting installation and retain for future

reference.

SPECIFICATION

Power Source : 220-240Vac~ 50-60Hz with

9V battery back-up (battery

included)

Battery Back-up : 9V Alkaline Battery (Gold Peak

1604A, Energizer 522, Duracell

MN1604)

Battery Back-up Life : In the event of a break in the

mains supply the battery will give

detector operation for one month

minimum

Operation Current : <40mA operation (In Alarm)

Transmit & Receive frequency: 868.4MHz

Digital modulation method: GFSK

Transmitting & Receiving distance: over 80M in open space

Transmit data rate : 50Kbps

Coding selection : 16 combinations

Max. wireless interconnection: 20 units

Max. wire interconnection : 40 units

Sensitivity to smoke : 0.65-1.52 % per foot obscuration

Operation Temperature : 0oC-40oC

Ambient Humidity : 10%-90%

Alarm Sound Level : 85 Decibels at 3 metres

PRODUCT DESCRIPTION

GNS-2236/RF is a multiple station photoelectric smoke alarm

with a radio link mounting base which allows it to be

interconnected to other Nexa alarms. (Can be mixed and

matched with the NEXA Photoelectric Smoke Alarm GNS-

2236/RF and MTS-166/RF) The radio link base has both signal

transmitter and receiver built-in. It transmits a Radio

Frequency(RF) alarm signal when the unit detects smoke. When

it receives an RF alarm signal from other unit, it will sound. This

interconnect feature allow up to 20 units to be interconnected

together within 100 meters and thus all alarms will sound when

any one is activated. Using the wireless signal transmission

technology awards wiring location problem and allows the

smoke and heat alarms to be placed futher apart when

compared to a wired installation.

Note: This smoke alarm cannot be connected to any other

device such as a fire alarm panel.

All the Smoke Alarms should be interconnected to ensure the

early warning will be heard, particularly by somebody sleeping. A

properly designed early warning fire system ensures the alarm is

given before the escape routes become blocked with smoke.

LOCATING THE SMOKE ALARM

If your dwelling is on a single storey, for minimum protection

you should fit an alarm in a corridor or hallway between the

sleeping and living areas (incl. Kitchens). Place it as near to

the living areas as possible and ensure the audible alarm can

be heard when the bedrooms are occupied. See Figure 1 for

examples.

If your dwelling is multi-storey, for minimum protection one

alarm should be fitted at the bottom of the staircase with further

alarms fitted on each upstairs landing. This includes

basements but excludes crawl spaces and unfinished attics.

See Figure 2 for examples.

NOTE: For maximum protection an alarm should be fitted in

every room (except kitchen, bathroom and garage).

DO NOT FIT AN ALARM IN THE KITCHEN OR BATHROOM,

as cooking fumes or steam may trigger the alarm.

DO NOT FIT ALARM IN GARAGE, as exhaust fumes are likely

to set it off.

POSITIONING THE SMOKE ALARM

Ceiling Mounting

As hot smoke rises and spread out, it is advisable to mount on

a ceiling in a central position. Avoid areas where there is no air

circulation. E.g. Corners of rooms and keep away from items

which may prevent the free flow of air. Place the unit at least

300 mm from and light fitting or decorative object which might

obstruct smoke entering the alarm. Keep at least 300 mm away

from walls. See Figure 3i.

Wall Mounting

Do not mount tight into the corners. Put the top edge of your

smoke alarm between 150 and 300mm below the ceiling. Keep

at least 300mm from room corners. See Figure 3i

On a Sloping Ceiling

In areas with sloping or peaked ceilings install your Smoke

Alarm 900mm from the highest point measured horizontally

because “dead air” at the apex may prevent smoke from

reaching the unit. See Figure 3ii.

Areas to be avoided include the following :

Situations where the temperature may fall below 0oC or

rise above 40oC

Humid areas such as bathrooms, kitchens, shower

rooms where the relative humidity may exceed 90%

Near a decorative object, door, light fitting, window

molding etc., that may prevent smoke from entering the

alarm.

Fume filled environments such as garages. Exhaust

gases may cause false alarms.

Adjacent to or directly above hot components such as

radiators or wall vents that can effect the direction of air

currents.

In very dusty or dirty environments such as workshops.

Locate unit at least 1.5m and route wiring at least 1m away

for fluorescent light fittings as electrical “noise” and/or

flickering may affect the unit. Do not wire into the same circuit

as fluorescent lights or dimmers.

Do not locate in insect infested areas. Insects and

contamination on the alarm sensor can increase its response

time.

INSTALLING THE SMOKE ALARM

WARNING –This smoke alarm is mains powered and requires

wiring by a qualified electrician in accordance with the current

IEE Regulations for Electrical Installations (BS7671).

The circuit used to power the smoke alarm must be a dedicated

permanent supply that cannot be switched off accidentally by

the normal user. Before installing ensure the electrical supply

is isolated.

WARNING: To prevent injury, this smoke alarm must be

securely attached to the ceiling/wall in accordance with the

installation instructions.

All handwired interconnect smoke alarms must be supplied from a

single power circuit and a common neutral must be used.

WARNING:Do not connect the interconnect wire to Live or

Neutral.

Disconnect the AC main power from the circuit that is going to

be used.

Having established the mounting location install a junction

box suitable for locating the termination point. Ensure that

there is no other electrical wiring or pipe work in the area

adjacent to the mounting surface.

Unlock the detector unit from the base by pushing up the

temporary latch with a screw driver. See Figure 4

Set the coding. Each unit comes a four positions dip

switch(see Figure 6) for coding the transmit and receive

frequency to prevent interference with any other RF

equipment. There are 16 combinations.

Figure 6 –DP Switch setting facility

LANDING

HALL

BATHROOMBEDROOM

LIVING

ROOM

KITCHEN

BASEMENT

LIVING

ROOM

BATHROOM

KITCHEN

BEDROOM

HALL

MAXIMUM PROTECTION

MINIMUM PROTECTION

KEY

FIGURE 1 - SINGLE STOREY DWELLING

FIGURE 2 - 2/3 STOREY DWELLING

Figure 4 –Release Temporary Lock

ENG

220~240V AC OPERATED

PHOTOELECTRIC SMOKE ALARM

MODEL: GNS-2236/RF

(With 9V Battery Back-up)

0086-CPR-632447

Nexa13546-CPR-632447

EN14604:2005/AC:2008

Nexa Trading AB, Box 12200, 40242 Gothenburg

Sweden

Fire Safety and installed in buildings

Main Features :

Photoelectric Sensor For Slow

Smoldering Fires

Power / Alarm indicator

HUSH FEATURE

Battery Back Up

Low Battery Warning

Wireless interconnectable (Up To 20

smoke And/Or heat Alarms)

Dip switch for coding

Supplied with Fixing Kit

Loud 85dB Alarm Signal

Dust cover

This instruction leaflet contains important

information on the correct installation and operation

of your heat alarm. Read this leaflet fully before

attempting installation and retain for future

reference.

SPECIFICATION

Power Source : 220-240Vac~ 50-60Hz with

9V battery back-up (battery

included)

Battery Back-up : 9V Alkaline Battery (Gold Peak

1604A, Energizer 522, Duracell

MN1604)

Battery Back-up Life : In the event of a break in the

mains supply the battery will give

detector operation for one month

minimum

Operation Current : <40mA operation (In Alarm)

Transmit & Receive frequency: 868.4MHz

Digital modulation method: GFSK

Transmitting & Receiving distance: over 80M in open space

Transmit data rate : 50Kbps

Coding selection : 16 combinations

Max. wireless interconnection: 20 units

Max. wire interconnection : 40 units

Sensitivity to smoke : 0.65-1.52 % per foot obscuration

Operation Temperature : 0oC-40oC

Ambient Humidity : 10%-90%

Alarm Sound Level : 85 Decibels at 3 metres

PRODUCT DESCRIPTION

GNS-2236/RF is a multiple station photoelectric smoke alarm

with a radio link mounting base which allows it to be

interconnected to other Nexa alarms. (Can be mixed and

matched with the NEXA Photoelectric Smoke Alarm GNS-

2236/RF and MTS-166/RF) The radio link base has both signal

transmitter and receiver built-in. It transmits a Radio

Frequency(RF) alarm signal when the unit detects smoke. When

it receives an RF alarm signal from other unit, it will sound. This

interconnect feature allow up to 20 units to be interconnected

together within 100 meters and thus all alarms will sound when

any one is activated. Using the wireless signal transmission

technology awards wiring location problem and allows the

smoke and heat alarms to be placed futher apart when

compared to a wired installation.

Note: This smoke alarm cannot be connected to any other

device such as a fire alarm panel.

All the Smoke Alarms should be interconnected to ensure the

early warning will be heard, particularly by somebody sleeping. A

properly designed early warning fire system ensures the alarm is

given before the escape routes become blocked with smoke.

LOCATING THE SMOKE ALARM

If your dwelling is on a single storey, for minimum protection

you should fit an alarm in a corridor or hallway between the

sleeping and living areas (incl. Kitchens). Place it as near to

the living areas as possible and ensure the audible alarm can

be heard when the bedrooms are occupied. See Figure 1 for

examples.

If your dwelling is multi-storey, for minimum protection one

alarm should be fitted at the bottom of the staircase with further

alarms fitted on each upstairs landing. This includes

basements but excludes crawl spaces and unfinished attics.

See Figure 2 for examples.

NOTE: For maximum protection an alarm should be fitted in

every room (except kitchen, bathroom and garage).

DO NOT FIT AN ALARM IN THE KITCHEN OR BATHROOM,

as cooking fumes or steam may trigger the alarm.

DO NOT FIT ALARM IN GARAGE, as exhaust fumes are likely

to set it off.

POSITIONING THE SMOKE ALARM

Ceiling Mounting

As hot smoke rises and spread out, it is advisable to mount on

a ceiling in a central position. Avoid areas where there is no air

circulation. E.g. Corners of rooms and keep away from items

which may prevent the free flow of air. Place the unit at least

300 mm from and light fitting or decorative object which might

obstruct smoke entering the alarm. Keep at least 300 mm away

from walls. See Figure 3i.

Wall Mounting

Do not mount tight into the corners. Put the top edge of your

smoke alarm between 150 and 300mm below the ceiling. Keep

at least 300mm from room corners. See Figure 3i

On a Sloping Ceiling

In areas with sloping or peaked ceilings install your Smoke

Alarm 900mm from the highest point measured horizontally

because “dead air” at the apex may prevent smoke from

reaching the unit. See Figure 3ii.

Areas to be avoided include the following :

Situations where the temperature may fall below 0oC or

rise above 40oC

Humid areas such as bathrooms, kitchens, shower

rooms where the relative humidity may exceed 90%

Near a decorative object, door, light fitting, window

molding etc., that may prevent smoke from entering the

alarm.

Fume filled environments such as garages. Exhaust

gases may cause false alarms.

Adjacent to or directly above hot components such as

radiators or wall vents that can effect the direction of air

currents.

In very dusty or dirty environments such as workshops.

Locate unit at least 1.5m and route wiring at least 1m away

for fluorescent light fittings as electrical “noise” and/or

flickering may affect the unit. Do not wire into the same circuit

as fluorescent lights or dimmers.

Do not locate in insect infested areas. Insects and

contamination on the alarm sensor can increase its response

time.

INSTALLING THE SMOKE ALARM

WARNING –This smoke alarm is mains powered and requires

wiring by a qualified electrician in accordance with the current

IEE Regulations for Electrical Installations (BS7671).

The circuit used to power the smoke alarm must be a dedicated

permanent supply that cannot be switched off accidentally by

the normal user. Before installing ensure the electrical supply

is isolated.

WARNING: To prevent injury, this smoke alarm must be

securely attached to the ceiling/wall in accordance with the

installation instructions.

All handwired interconnect smoke alarms must be supplied from a

single power circuit and a common neutral must be used.

WARNING:Do not connect the interconnect wire to Live or

Neutral.

Disconnect the AC main power from the circuit that is going to

be used.

Having established the mounting location install a junction

box suitable for locating the termination point. Ensure that

there is no other electrical wiring or pipe work in the area

adjacent to the mounting surface.

Unlock the detector unit from the base by pushing up the

temporary latch with a screw driver. See Figure 4

Set the coding. Each unit comes a four positions dip

switch(see Figure 6) for coding the transmit and receive

frequency to prevent interference with any other RF

equipment. There are 16 combinations.

Figure 6 –DP Switch setting facility

LANDING

HALL

BATHROOMBEDROOM

LIVING

ROOM

KITCHEN

BASEMENT

LIVING

ROOM

BATHROOM

KITCHEN

BEDROOM

HALL

MAXIMUM PROTECTION

MINIMUM PROTECTION

KEY

FIGURE 1 - SINGLE STOREY DWELLING

FIGURE 2 - 2/3 STOREY DWELLING

Figure 4 –Release Temporary Lock

ENG

220~240V AC OPERATED

PHOTOELECTRIC SMOKE ALARM

MODEL: GNS-2236/RF

(With 9V Battery Back-up)

0086-CPR-632447

Nexa13546-CPR-632447

EN14604:2005/AC:2008

Nexa Trading AB, Box 12200, 40242 Gothenburg

Sweden

Fire Safety and installed in buildings

Main Features :

Photoelectric Sensor For Slow

Smoldering Fires

Power / Alarm indicator

HUSH FEATURE

Battery Back Up

Low Battery Warning

Wireless interconnectable (Up To 20

smoke And/Or heat Alarms)

Dip switch for coding

Supplied with Fixing Kit

Loud 85dB Alarm Signal

Dust cover

This instruction leaflet contains important

information on the correct installation and operation

of your heat alarm. Read this leaflet fully before

attempting installation and retain for future

reference.

SPECIFICATION

Power Source : 220-240Vac~ 50-60Hz with

9V battery back-up (battery

included)

Battery Back-up : 9V Alkaline Battery (Gold Peak

1604A, Energizer 522, Duracell

MN1604)

Battery Back-up Life : In the event of a break in the

mains supply the battery will give

detector operation for one month

minimum

Operation Current : <40mA operation (In Alarm)

Transmit & Receive frequency: 868.4MHz

Digital modulation method: GFSK

Transmitting & Receiving distance: over 80M in open space

Transmit data rate : 50Kbps

Coding selection : 16 combinations

Max. wireless interconnection: 20 units

Max. wire interconnection : 40 units

Sensitivity to smoke : 0.65-1.52 % per foot obscuration

Operation Temperature : 0oC-40oC

Ambient Humidity : 10%-90%

Alarm Sound Level : 85 Decibels at 3 metres

PRODUCT DESCRIPTION

GNS-2236/RF is a multiple station photoelectric smoke alarm

with a radio link mounting base which allows it to be

interconnected to other Nexa alarms. (Can be mixed and

matched with the NEXA Photoelectric Smoke Alarm GNS-

2236/RF and MTS-166/RF) The radio link base has both signal

transmitter and receiver built-in. It transmits a Radio

Frequency(RF) alarm signal when the unit detects smoke. When

it receives an RF alarm signal from other unit, it will sound. This

interconnect feature allow up to 20 units to be interconnected

together within 100 meters and thus all alarms will sound when

any one is activated. Using the wireless signal transmission

technology awards wiring location problem and allows the

smoke and heat alarms to be placed futher apart when

compared to a wired installation.

Note: This smoke alarm cannot be connected to any other

device such as a fire alarm panel.

All the Smoke Alarms should be interconnected to ensure the

early warning will be heard, particularly by somebody sleeping. A

properly designed early warning fire system ensures the alarm is

given before the escape routes become blocked with smoke.

LOCATING THE SMOKE ALARM

If your dwelling is on a single storey, for minimum protection

you should fit an alarm in a corridor or hallway between the

sleeping and living areas (incl. Kitchens). Place it as near to

the living areas as possible and ensure the audible alarm can

be heard when the bedrooms are occupied. See Figure 1 for

examples.

If your dwelling is multi-storey, for minimum protection one

alarm should be fitted at the bottom of the staircase with further

alarms fitted on each upstairs landing. This includes

basements but excludes crawl spaces and unfinished attics.

See Figure 2 for examples.

NOTE: For maximum protection an alarm should be fitted in

every room (except kitchen, bathroom and garage).

DO NOT FIT AN ALARM IN THE KITCHEN OR BATHROOM,

as cooking fumes or steam may trigger the alarm.

DO NOT FIT ALARM IN GARAGE, as exhaust fumes are likely

to set it off.

POSITIONING THE SMOKE ALARM

Ceiling Mounting

As hot smoke rises and spread out, it is advisable to mount on

a ceiling in a central position. Avoid areas where there is no air

circulation. E.g. Corners of rooms and keep away from items

which may prevent the free flow of air. Place the unit at least

300 mm from and light fitting or decorative object which might

obstruct smoke entering the alarm. Keep at least 300 mm away

from walls. See Figure 3i.

Wall Mounting

Do not mount tight into the corners. Put the top edge of your

smoke alarm between 150 and 300mm below the ceiling. Keep

at least 300mm from room corners. See Figure 3i

On a Sloping Ceiling

In areas with sloping or peaked ceilings install your Smoke

Alarm 900mm from the highest point measured horizontally

because “dead air” at the apex may prevent smoke from

reaching the unit. See Figure 3ii.

Areas to be avoided include the following :

Situations where the temperature may fall below 0oC or

rise above 40oC

Humid areas such as bathrooms, kitchens, shower

rooms where the relative humidity may exceed 90%

Near a decorative object, door, light fitting, window

molding etc., that may prevent smoke from entering the

alarm.

Fume filled environments such as garages. Exhaust

gases may cause false alarms.

Adjacent to or directly above hot components such as

radiators or wall vents that can effect the direction of air

currents.

In very dusty or dirty environments such as workshops.

Locate unit at least 1.5m and route wiring at least 1m away

for fluorescent light fittings as electrical “noise” and/or

flickering may affect the unit. Do not wire into the same circuit

as fluorescent lights or dimmers.

Do not locate in insect infested areas. Insects and

contamination on the alarm sensor can increase its response

time.

INSTALLING THE SMOKE ALARM

WARNING –This smoke alarm is mains powered and requires

wiring by a qualified electrician in accordance with the current

IEE Regulations for Electrical Installations (BS7671).

The circuit used to power the smoke alarm must be a dedicated

permanent supply that cannot be switched off accidentally by

the normal user. Before installing ensure the electrical supply

is isolated.

WARNING: To prevent injury, this smoke alarm must be

securely attached to the ceiling/wall in accordance with the

installation instructions.

All handwired interconnect smoke alarms must be supplied from a

single power circuit and a common neutral must be used.

WARNING:Do not connect the interconnect wire to Live or

Neutral.

Disconnect the AC main power from the circuit that is going to

be used.

Having established the mounting location install a junction

box suitable for locating the termination point. Ensure that

there is no other electrical wiring or pipe work in the area

adjacent to the mounting surface.

Unlock the detector unit from the base by pushing up the

temporary latch with a screw driver. See Figure 4

Set the coding. Each unit comes a four positions dip

switch(see Figure 6) for coding the transmit and receive

frequency to prevent interference with any other RF

equipment. There are 16 combinations.

Figure 6 –DP Switch setting facility

LANDING

HALL

BATHROOMBEDROOM

LIVING

ROOM

KITCHEN

BASEMENT

LIVING

ROOM

BATHROOM

KITCHEN

BEDROOM

HALL

MAXIMUM PROTECTION

MINIMUM PROTECTION

KEY

FIGURE 1 - SINGLE STOREY DWELLING

FIGURE 2 - 2/3 STOREY DWELLING

Figure 4 –Release Temporary Lock

IMPORTANT!

The setting of the dip switch must be the same on

all interconnected units.

Connect the wires to the correct terminals on the

mounting base and fix the mounting base in position..

Ensure the screws are fully tightened. See Figure 5.

Figure 5 –Wiring &

Interconnect facility

The alarm must be wired in accordance with

National wiring codes.

LIVE : connect to house wires coloured Brown,

Red or marked with L.

NEUTRAL : connect to house wires coloured

Blue, Black or marked with N.

INTERCONNECT : normally not used except to

hardwire interconnect to the mains smoke alarm

(Nexa model GNS-2236). Never use EARTH wire

for interconnect wire.

Remark

GNS-2236/RF smoke alarm & GNS-2263/RF heat

alarm are detectors, which can be interconnected

with each other by wireless radio links.

In another case, the user will have the option to

interconnect them to the other hard wired type

smoke alarms by the wiring be the “interconnection

terminal”on the base.

WARNING: Connection to the EARTH terminal is not

needed for correct functioning of the Smoke Alarm. It is

just for conveniently terminating any earth supply wire

coloured green or green/yellow. It does not provide

protective earthing for the Smoke Alarm

Insert a 9V battery firmly into battery compartment on

the rear of the alarm. NOTE POLARITY OF

CONNECTIONS. Ensure the metal tab is fully

depressed when the battery has been fitted.

NOTE –For the safety of the end user the smoke

alarm cannot be fitted without its battery.

Before assembly to base plate test the correct operation

of the smoke alarm (operating from the battery only) by

depressing the test button on the front of the alarm. The

unit should emit a loud pulsating alarm.

Assemble alarm onto the mounting plate by sliding it in

according to the direction of the arrows.

Restore the AC supply

Test the correct operation of the smoke alarm by

depressing the test button on the front of the detector. The

unit should emit a loud pulsating alarm.

Should use 2.1mm wire for connection.

Let the dust cover remain over the smoke alarm until the

the final cleaning is completely done. Applies mainly for

new construction or renovation.

OPERATING YOUR SMOKE ALARM

Once the smoke alarm has been installed a small GREEN

indicator light (LED) should be visible through the alarm grill

indicating that AC supply is healthy. A RED indicator light (LED)

should also flash approximately once a minute to indicate the

battery is healthy and the unit is operating properly.

If smoke is detected, the unit will emit a load pulsating alarm and

a RED indicator light (LED) will be flashing quickly at the same

time until the air is clear.

At normal time, the radio link module is working under sleep

mode. It will open the receiving window at a short time around

every 20 seconds. In order to awake it and set it at transmission

mode, the simplest way is to press the button on top of the

smoke detector. It will continually transmit as long as the button

is pressed.

To last two units’transmission and reception performances’

parameters, it is important to set them with the same code. The

dip switch for setting the code is available on the mounting base

of the unit. When one is at its receiving mode, it can receive a

triggering signal from the transmitting unit within 20 seconds. As

soon as the receiving unit gets the signal, it will activate the

alarm to sound loudly unit the transmitting signal is vanished.

TESTING YOUR SMOKE ALARM

It is recommended that you test your smoke alarm once a week

to ensure the detector is working correctly.

Push and hold the test button for approximately 3 seconds. A

loud pulsating alarm should sound and a RED indicator light

(LED)will flash at the same time.

NOTE –for multiple interconnected smoke alarms(either by

radio link or hardwire), only the RED indicator light (LED) of the

originating unit will flash rapidly. All other units in the

interconnect system will sound an alarm(for radio link

interconnected units, it will sound within 20 seconds) but their

RED indicator light (LED) will NOT flash. Test each alarm

checking that the alarm is triggered on all other alarms installed.

HUSH OR SILENCE FEATURE

This Smoke Alarm has a built-in Hush or Silence feature

incorporated into the Test button. If cooking or other non-

hazardous sources cause the unwanted alarm, it can be

temporarily silenced by depressing the test button and holding

for approximately 3 seconds. The alarm will enter a dormant

period for 10 minutes. The red LED will flash every 10 seconds

to indicate the sensitivity is reduced. At the end of the hush

period the alarm will reset to normal sensitivity.

NOTE –If the smoke density increase during this period(i.e.

from a fire) the unit will go into alarm mode.

LOW BATTERY WARNING

If the smoke alarm emits a short ‘beep’ once a minute the

battery is at the end of its life and should be replaced

immediately. This low voltage warning will be given for at least

30 days. In this case, the other interconnected units in the

system which are not in low battery condition will chirps for a

few seconds once a hour as long as the detector with the

“dead”battery beeps.

If the red indicator light (LED) does not flash every minute then

replace the battery.

BATTERY REPLACEMENT

Always TURN OFF the A.C. supply to the smoke alarm before

replacing the battery. Replace the battery at least once

annually, or immediately when the low battery signal sounds

once a minute, even though the smoke alarm is receiving A.C.

power.

Test the alarm for correct operation using the test facility

whenever the battery is replaced.

WARNING: DANGER OF EXPLOSION IF BATTERY IS

INCORRECTLY REPLACED. THE USE OF BATTERIES

OTHER THAN THOSE RECOMMENDED ON THE BACK OF

THE SMOKE ALARM MAY BE DETRIMENTAL TO ITS

OPERATION

The battery should only be replaced by a qualified electrician or

similarly qualified person.

Turn off the A.C. power supply to the smoke alarm.

Gently slide the smoke alarm out from the mounting

plate.

Remove the battery from the compartment.

Insert a new, healthy 9V battery. NOTE POLARITY OF

CONNECTIONS. Ensure the metal tab is fully

depressed when the battery has been fitted

Using the Push-to-Test button, test the smoke alarm to

verify 9V DC battery back-up. See “TESTING YOUR

SMOKE ALARM”

Reattached the smoke alarm to the mounting plate by

sliding until it snaps into place.

Turn on the AC power and test the smoke alarm using

the Push-to-Test button. See “TESTING YOUR SMOKE

ALARM”

MAINTAINING YOUR SMOKE ALARM

Clean your smoke alarm at least once every six months to

prevent dust build up. This can be done using a vacuum

cleaner with the brush attachment. Clean gently around the

front grilled section and sides.

The apparatus shall not be exposed to dripping or

splashing and no objects filled with liquids, such as vases,

shall be placed on the apparatus.

IMPORTANT SAFEGUARDS

Installation of your smoke alarm is only one step in your safety

plan. Other important steps should be taken to further improve

your safety.

Install the smoke alarm properly, following this

instruction leaflet

Test your smoke alarm weekly

Replace the battery immediately once depleted

Do not smoke in bed

Keep matches & lighters away from children

Store flammable materials in a proper manner and never use

them near naked flames or sparks

Maintain emergency equipment such as Fire Extinguishers,

escape ladders etc and ensure all occupants know how to

use them correctly.

Plan an escape route/s from your building in advance and

ensure all occupants are aware of them. Re-enforce this

awareness periodically through-out the year.

Make sure escape routes remain free of any obstructions.

WARNING: IF THERE IS ANY QUESTION AS TO THE CAUSE OF

AN ALARM IT SHOULD BE ASSUMED THAT THE ALARM IS

DUE TO AN ACTUAL FIRE AND THE DWELLING SHOULD BE

EVACUATED IMMEDIATELY.

THIS PRODUCT IS A SEALED UNIT AND CANNOT BE

REPAIRED –IF THE UNIT IS TAMPERED WITH IT WILL

INVALIDATE THE GUARANTEE. IF THE UNIT IS FAULTY

PLEASE RETURN IT TO YOUR ORIGINAL SUPPLIER WITH

YOUR PROOF OF PURCHASE.

YOUR SMOKE ALARM GUARANTEE

These smoke alarms are guaranteed to be free from defects in

materials and workmanships under normal use and service for a

period of three years from date of purchase. The company will not

be obligated to repair or replace parts which are found to be in need

of repair because of misuse, damage or alterations occur after the

date of purchase. Send the Smoke Alarm with proof of purchase,

postage and return postage prepaid, to local distributor. The liability

of the company arising from the sale of this smoke alarm shall not in

any case exceed the cost of replacement of smoke alarm and in no

case shall the company be liable for consequential loss or damages

resulting from the failure of the smoke alarm.

NEXA TRADING AB. SHALL HAVE NO LIABILITY FOR ANY PERSONAL INJURY

OR PROPERTY DAMAGE, OR ANY SPECIAL INCIDENTAL, CONTINGENT OR

CONSEQUENTIAL DAMAGE OF ANY KIND RESULTING FROM A FIRE. THE

EXCLUSIVE REMEDY FOR BREACH OF THE LIMITED WARRANTY CONTAINED

HEREIN IS THE REPAIR OR REPLACEMENT OF THE DETECTIVE PRODUCT AT

NEXA TRADING AB. OPTION. IN NO CASE SHALL NEXA TRADING AB’S

LIABILITY UNDER ANY OTHER REMEDY PRESCRIBED BY LAW EXCEED THE

PURCHASE PRICE. YOUR SMOKE ALARMS IS NOT A SUBSTITUTE FOR

PROPERTY, DISABILITY, LIFE OR OTHER INSURANCE OF ANY KIND.

APPROPRIATE COVERAGE IS YOUR RESPONSIBILITY. CONSULT YOUR

INSURANCE AGENT.

This does not affect your statutory rights.

This alarm is only suitable for single occupancy private dwellings

only and not intended for multi occupancy private dwellings or

commercial or industrial dwellings.

Waste electrical products should not be disposed of with normal

household waste. Please recycle where facilities exist. Check with

your Local Authority or retailer for recycling advice. New regulation

will encourage the recycling of Waste from Electrical and Electronic

Equipment (European "WEEE Directive" effective August 2005).

Manufacturer: Nexa Trading AB

Sweden

www.nexa.se

You will find the Declaration of Performance (DoP) on our website