This can be hindered, for example, by the later installation of room
partitions or very high cupboards / shelves. Ensure the minimum
clearance to walls, furnishings and fittings and so forth is at least
60 cm (in very confined spaces, e.g. in hallways the Techem techni-
cian can alter the required minimum clearance setting in the radio
frequency smoke detector when installing the device). The mini-
mum distance to objects (normally = 60 cm) comes from standards
requirements (= 50 cm) + measuring tolerance (= 10 cm).
• whether the SD is fully covered or partially covered or taped.
• whether the individual rooms are used differently.
Minimum instal-
lation requirement:
Install smoke detectors in bedrooms including
children‘s bedrooms as well as in hallways and rooms that serve
as escape routes.
• whether smoke detectors are very dusty or, for example, are heavily
soiled by cobwebs. The smoke inlets (grey grating) must be free.
• whether fluorescent tubes, fireplaces, stoves, ventilators, air-con-
ditioning and/or ventilation devices have been installed later in the
vicinity of the smoke detectors.
In case of variances, please refer as fast as possible to the
Techem Hotline: 0
18
02/00
12
64
(6 cents / call from German landlines, max. 42 cents / minute from
German mobile phones).
Techem radio frequency smoke detector 2 – operating instructions
25