ENGLISH
TECHNICAL DATA
Power supply: 9V battery, manganese oxide, alkali or lithium
Battery time
Up to 10 years with lithium battery
Power consumption
< 50 mA on alarm
Radio frequency
433.92 MHz
Range
up to 50 m
Alarm temperature
> 60 °C
Alarm signal
85 dB (A) at 3 meter
Operating temperature
0°C – 40°C
Luftfuktighet
10 – 90 % RH
Interconnection
Radio – max 12 units
Compatible models
GNSP-2236/RF2, MSA-866/RF2,
MTS-163/RF2
Max ERP
10 mW
This instruction folder contains important information
on correct installation and maintenance of your smoke
alarm. Read through the whole folder before installing
it, and keep the folder for future reference.
Nexa heat alarm MTS-163/RF2 is designed to respond
to temperatures above 60 ° C. The heat alarm is a
complement to smoke alarms and is used in spaces
where optical fire alarms cannot be placed.
CHARACTERISTICS
• LED indication for Alarm and Voltage
• Hush Function / Pause Button
• Warning for low battery level
• Wireless connection by radio link
• Complete with plugs and screws
• 85 dB alarm signal
• Dust cover included
IMPORTANT
• The radio range may vary depending on the location,
the design of the building and the materials used in the
building.
• Do not remove or disconnect the batteries to stop false
alarms as this will disable the vital function of the smoke
alarm. Open windows or ventilate the air around the
smoke alarm in order to stop it, and/or press the pause
button.
• The heat alarm is intended for use for use in single-
family homes. In multiple-occupancy buildings, each
home must be equipped with its own heat alarms.
• This heat alarm is not suitable for use in buildings that
are not used for residential purposes. The heat alarm is
no substitute for a full alarm system that is required by
law or by the fire authorities.
• Alarms if the temperature exceeds 60 ° C.
• The heat alarm should be tested every month and
replaced every ten years.
POSITIONING THE HEAT ALARM
Heat alarms are a complement to optical smoke alarms
and can be placed in places where an optical smoke
alarm cannot be located. The heat alarm warns when the
temperature exceeds 60 °C.
It is ideal for kitchen, garage, basement, boiler room and
attics and other areas where there are normally large
amounts of vapors, smoke or dust that prevent the use of
optical smoke alarms due to the risk of false alarms.
All heat and smoke alarms should be interconnected to
ensure that the alarm sounds as early as possible.
Ceiling installation
Hot heat rises and spreads, so installing your heat 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 alarm. Position it at least
1 metre away from the wall. See 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 heat 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 heat alarm 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.
INSTALLATION
1. Remove the mounting plate on the back of the
smoke alarm by rotating the mounting plate
counterclockwise.
2. Insert the battery.
3. Test and programme the smoke alarm – see the
sections TESTING and PROGRAMMING.
4. Install the mounting plate in a selected location on the
ceiling. Take care when positioning your smoke alarm.
5. Place the smoke alarm on the mounting plate and rotate
the smoke alarm clockwise until it clicks into place.
6. Press the test button to check that smoke alarm is
working correctly.
TESTING
• Test your alarms both before and after installation so
as to be sure that they are working.
• Only test your alarms using the test button. Never use
a naked flame as this may destroy the smoke alarm.
• Get into the habit of testing your smoke alarms once a week.
TESTING THE SMOKE ALARM
• PRESS and hold down the test button for
3 seconds. Release.
• The smoke alarm emits an alarm signal and the red
LED flashes rapidly.
TESTING INTERCONNECTED SMOKE ALARMS
• PRESS and hold down the test button on the master
unit for
5 seconds. Release.
• The alarm on the master unit will sound first, and then
the alarms on the slave units will sound (may take up
to 60 seconds after the alarm on the master unit has
sounded).
• Finish the test by pressing the button on the master
unit twice in succession.
HEAT ALARM with wireless
self-learning interconnection
Model: MTS-163/RF2
HALL-
WAY
BASEMENT
LIVING ROOM
BATHROOM
KITCHEN
BEDROOM
BEDROOM
BEDROOM
BEDROOM
HALLWAY
Maximum /
recommended
protection
Minimum
protection
CEILING
WALL
BEST IN THE
MIDDLE OF THE ROOM
Min. 1 m
Min.
15 cm
Max.
30 cm
BATHROOM
BEDROOM
90 cm
LIVING
ROOM
LANDING
KITCHEN
HALL-
WAY
BASEMENT
LIVING ROOM
BATHROOM
KITCHEN
BEDROOM
BEDROOM
BEDROOM
BEDROOM
HALLWAY
Maximum /
recommended
protection
Minimum
protection
CEILING
WALL
BEST IN THE
MIDDLE OF THE ROOM
Min. 1 m
Min.
15 cm
Max.
30 cm
BATHROOM
BEDROOM
90 cm
LIVING
ROOM
LANDING
KITCHEN
FIGURE 1.
Single-level home
FIGURE 3A
FIGURE 3B
FIGURE 2.
Multi-storey home
LOCATION ON CEILING AND WALL
Minimum protection
(smoke)
Maximum protection
(smoke)
Maximum protection
(heat)
LAUNDRY
ROOM
NOTE: For recommended / maximum protection, a smoke
alarm should be provided in each room and a heat alarm in
the kitchen, bathroom / laundry room and garage.
