Siemens SpA
Building Technologies
CE1N7609e / 11-07-2008
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INTELLIGAS
®
Gas leak detectors
for residential and similar use
In conformity with Standard EN50194
LYA14..
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Electronic gas leak detectors with one threshold for residential use. 230VAC power
supply, SPDT relay output suitable for 230VAC solenoid valve or other signalling or
activating devices.
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The LYA14.. detectors have been engineered to provide both optical and acoustical alarm
and activate a solenoid valve for shutting off the gas flow (or other auxiliary devices) in
presence of dangerous concentration of:
•
methane (CH4)
•
LPG
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When the detector is supplied with 230VAC, it runs a preheating phase that lasts about 60s.
During this period the detector is inactive. After the preheating phase the detector enters in
normal operating condition. In case of a gas leak, when the gas concentration in the air
exceeds the preset threshold, the detector signals the alarm condition lighting on the red
LED, activates the buzzer and energises the internal relay for closing the manual reset
solenoid valve in order to cut the flow of gas. When the cause of alarm has been removed,
the detector returns to normal operation. To re-establish the normal gas supply condition it
is necessary to open manually the solenoid valve acting on its appropriate reset device.
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Description : Type :
Methane gas (CH4) detector
LYA14.G
LPG detector
LYA14.P
Use
Operation
Available
models
