Alphabetical scale that describes the type of alarms that are installed in the system. The most common Grades for domestic installations are:
Grade D1 = A system of one or more mains-powered detectors, each with a tamper-proof standby supply consisting of a battery or batteries.
Grade D2 = A system of one or more mains-powered detectors, each with an integral standby supply consisting of a user-replaceable battery or batteries.
Grade F1 = A system of one or more battery powered detectors, powered by a tamper-proof primary battery or batteries.
Grade F2 = A system of one or more battery powered detectors, powered by a user-replaceable primary battery or batteries.
References the areas of coverage with the alarm system:
LD1 = Alarms in all rooms/areas apart from bathrooms, shower rooms and toilets
LD2 = Alarms in hallways and landings (circulation spaces & escape routes) plus alarms in the kitchen and living room (high risk areas)
LD3 = Alarms in hallways and landings (circulation spaces & escape routes)
System Testing – Installation Certificate
Once the system has been installed it should be tested and an installation certificate provided. Some certificates ask for a smoke/heat test to be performed on the alarms, however we do not recommend this as the results can be misleading and all Aico alarms are tested in smoke/heat/CO as part of the production process. We recommend testing using the test button on front of the alarms.
If your certificate requires reference to smoke/heat testing, you can use the following wording as a ‘variation’ if you are testing using the test buttons:
“A physical smoke/heat test has not been performed, having been substituted by following the testing recommendation contained within the Siting and Installation Instructions supplied by the manufacturer of the alarms installed.”
Many Installation Certificates require the occupier to be given written information on certain things such as operation of the system or action to be taken in the event of a fire.
The ‘User Instructions’ supplied with the alarms cover all of these essential points and must be handed over to the person who lives in the property once installation and testing is complete.
Extra copies of the instructions can be found on the individual product pages in the products section.
There is a blue dust cover provided with all alarms – this must be fitted over alarms if building work is still on-going to prevent contamination. When the work has finished remove the dust cover and give to the owner of the property. If work has not finished and you will not be returning to the property ensure that the owner knows they must remove the dust cover once building work has finished.
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