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___________________________________________________________________________________________
Functional
table
____________________________________________________________________________________________
sensing element
hole for wall mounting
green LED (power supply)
yellow LED
(preheating / sensing elem. fail)
red LED (gas alarm)
____________________________________________________________________________________________
Features
____________________________________________________________________________________________
Installation
recommendations
_____________________________________________________________________________________________
Ordering
____________________________________________________________________________________________
Commissioning
Siemens SpA
Building Technologies
Outputs
Detector
OFF (no power supply)
Preheating (60s)
Normal operation
Gas alarm
Sensing element fault
ON = lit / activated
OFF = off / deactivated
relay output
The LYA14... detectors consist of two parts: an ABS self-extinguishing housing with a
removable cover and a part containing the electronic circuit, terminals and sensing element.
There are three LEDs on the cover: green, yellow and red for indicating normal operation,
preheating/sensor failure and gas alarm, respectively. The detectors are factory-calibrated
to assure intervention at gas concentrations below the dangerous limit.
The installer must respect the existing standards concerning the electrical connections. The
detector must be directly connected to the mains (without any switches) and be permanently
powered on.
The detectors must be replaced after 5 years from the date of installation.
Indicate the complete item code of the detector (see also "AVAILABLE MODELS").
LYA14.G
LYA14.P
Read carefully the instructions provided with the detector. Keep it in a safe place for future
use. Respect all the existing regulations concerning the installation of electrical equipment.
GREEN
YELLOW
RED
LED
LED
LED
OFF
OFF
OFF
ON
ON
OFF
ON
OFF
OFF
ON
OFF
ON
ON
ON
OFF
RELAY
BUZZER
OFF
OFF
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
electromechanical buzzer
openings for
cable input
230VAC power supply
terminals
hole for wall mounting
screw for cover lock
CE1N7609e / 11-07-2008
2/4
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