Deta 1171 - User Manual

Combined Optical Smoke and Heat Alarm 240V with 10 Year Battery Back-Up
and RF linkable
1171
1 P a g e
User and Installation Instructions Manual
Description
Combined Optical Smoke and Heat Alarms with a 10-year sealed for life
battery back-up. The alarms mount onto a wiring base.
Multiple combined alarms can either be hardwired or wirelessly interlinked
together. Combined Optical Smoke and Heat Alarms (1171) can be
hardwired linked to other alarms within the series e.g. 1163, 1164, 1169.
The combined alarm can be wirelessly linked with a RF switch for remote
testing and silencing.
Alarms suitable for BS 5839-6 requirements for Grade D systems.
All products must be installed by a competent person in accordance BS
7671, the current edition of the IET Wiring Regulations.
Where to Locate
Combined or Smoke alarms need to be installed in circulation areas of a
dwelling, for example, hall ways and landing, as a minimum, and ideally
heat alarms need to be installed in kitchens, as required by BS 5839-6,
Code of Practice for the design, installation, commissioning and
maintenance of fire detection and fire alarm systems in domestic
premises.
Ideally, Combined or Smoke alarms should be located:
• In living and sleeping areas.
• On each floor of the dwelling.
• In every room where electrical appliances are operated, e.g. portable
heaters, tumble dryers.
• In each room where there are fossil fuel burning appliances, e.g. gas
boilers, cookers, fireplaces.
It may be necessary to install more than one Combined or Smoke alarm in
an area, e.g. in halls/corridors that are more than 9m long. See diagram 1.
Diagram 1
Positioning of Alarms
• Smoke and heat from and burning materials rise to the ceiling and
spread horizontally. Mounting the smoke alarm on the ceiling in the
centre of the room places it closest to all points in the room. Ceiling
mounting is preferred in ordinary residential dwellings.
• If smoke alarms are not positioned centrally on a ceiling within a
room, it is recommended to locate it a minimum of 300mm (12”)
from the side wall (see Diagram 2).
Diagram 2
• Put a Combined or Smoke alarm at both ends of a hallway/corridor or
large room if it is more than 9000mm (30’) long.
• In rooms with an A-shaped peaked ceiling, a sloped or cathedral
ceiling, install a Combined/smoke/heat alarm between 500mm and
1500mm from the highest point of the ceiling. (See Diagram 3).
Diagram 3
• To limit false alarms as laid within BS 5839-6, it is recommended that
smoke alarms should not be installed within 900mm (3’) of the
following: the door to a kitchen, the door to a bathroom containing a
tub or shower. If space restrictions prevent this, it must not be
located closer than 300mm (12”) from the side wall.
• Also, alarms should be positioned away from forced air supply ducts
used for heating or cooling, ceiling or whole house ventilating fans, or
other high air flow areas to limit false alarming.
• It is recommended that smoke alarms are not installed within 300mm
of light fittings.
• If positioning the alarm in the loft space, it must be easily accessible.
Ideally, from the loft hatch.
• Ideally, where possible, mount the alarm on a horizontal surface in
the loft space.
Do Not Install Combined or Smoke Alarms in the Following Places
• Alarms should not be positioned in hard-to-reach areas, such as
above stairwells, that make it difficult to gain access for maintenance
• In unventilated garages as vehicle exhaust fumes may cause false
alarm.
• In an area where the temperature may fall below 0
o
C or rise above
40
o
C, such as garages and unfinished attics.
• In dusty areas. Dust particles may cause nuisance alarm or failure to
alarm.
• In very humid areas (greater than 93% R.H.), e.g. bathrooms.
Moisture or steam can cause nuisance alarms.
• In insect-infested areas.
• Near fluorescent lights. Electronic “noise” may cause nuisance
alarms.
Important: These alarms are primarily intended for use in single
family occupancy private dwellings.
300mm Minimum
Recommended

Summary

Description

Product Overview

Details 10-year sealed battery backup and RF linkability for alarms.

Where to Locate

Recommended Placement

Guidance on placing alarms in circulation areas, kitchens, and rooms with appliances.

Hallway;Room Length

Specifics for long hallways and rooms, including ceiling placement in peaked roofs.

Positioning of Alarms

Ceiling Mounting Strategy

Advice on ceiling placement for optimal smoke detection, minimum distance from walls.

Do Not Install Alarms

Avoidance Areas

Specifies locations to avoid for nuisance alarms like garages, humid areas, etc.

Installation

Compatibility and Circuit Requirements

Details alarm compatibility with other DETA models and circuit requirements.

Safety Instructions

Emphasizes switching off power, qualified installers, and adherence to regulations.

Mounting and Wiring

Step-by-step guide for detaching alarm, removing connector, and mounting the base.

Interlink Connections

Guidance on hardwiring and wirelessly interlinking multiple alarms, including system limits.

Wireless Interlink Setup

Instructions for setting up a wireless network by pairing alarms using the test button.

User Information

Alarm Operation and Indicators

Explains LED indicators for power, normal operation, and hush mode.

Alarm Silence (Hush Mode)

How to use the test button to silence nuisance alarms temporarily.

Locating Initiating Alarm

How to identify the source of a nuisance alarm in a linked system.

Testing the Alarm

Test Procedure

Steps for testing the alarm, including interlinked alarms and monthly testing.

Cautionary Testing Notes

Advises on testing distance and avoiding flame-based tests.

Cleaning

Cleaning Procedure

Instructions for cleaning the alarm using a vacuum and damp cloth, with power off.

Important Safety Information

System Compatibility and Limitations

Highlights compatibility, suitability for single-family dwellings, and limitations.

Household Member Awareness

Ensures all household members can hear and respond to alarms.

Alarm Functionality Limits

States alarms are not foolproof, not a substitute for insurance, and require monthly testing.

Trouble Shooting

Green LED Not Lit

Troubleshooting steps for when the green LED does not illuminate.

Alarm Does Not Sound When Tested

Steps to resolve issues where the alarm fails to sound during testing.

False Alarming

Addresses intermittent alarms or those triggered by cooking or showers.

Low Battery Mode

Explanation of chirping sounds indicating low battery or end of life.

Product Specification

Voltage and Current

Specifies power requirements, including voltage and current consumption.

Battery and Alarm Volume

Details battery specification, service life, and alarm volume.

Sensitivity and Inter-linkable

Covers alarm sensitivity and interlinking capabilities.

Compliance and Disposal

Lists compliance standards and product disposal regulations.

Deta 1171 Specifications

General

Brand	Deta
Model	1171
Category	Smoke Alarm
Language	English