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EsiWelma

®

 s.r.l.

 

- 5 - 

E117.602_En 

 

4. 

Technical specifications 

Power supply  

230Vac ± 10% 

Frequency 

50 - 60 Hz 

Absorption   

2 VA 

Command outputs 

- Electronic 12VDC (13W max) for N.O. solenoid valve 

 

- Relay with contact exchange free of potential SPDT 250V 8A (2000VA) 

Type of solenoid valve controlled:  

N.O. (normally open) 12VDC (13W max) 

Activation thresholds and times 
(ppm of carbon monoxide) 

50 ppm 
100 ppm 
300 ppm 

between 60 and 90 minutes 
between 10 and 40 minutes 
within 3 minutes 

ESN.. detectors, connectable in parallel  

max 9 (see wiring diagrams)  

Lifespan of a detector (average)  

6 years from the date of manufacture 

Max area covered by a detector  

40 m² approx (indicative)  

Visual warnings  

Green LED (power is on)  

 

Yellow LED (warm-up / sensor anomaly) 

 

Red LED (gas alarm) 

Audible alarms: 

Piezoelectric buzzer 85dB at 1 m 

Protection Rating 

IP42 when correctly installed 

Operating ambient temperature 

-10 to ... +40°C  (storage –20 to +70°C) 

Relative humidity, operating environment  

30 to  90% R.H. without condensation (storage max 95% R.H.) 

Dimensions 

139mm x 98mm x 40mm  

Conformity to standard  

EN50291 

 conformity 

 

EMC Electromagnetic Compatibility 

2014/30/UE – EN50270 

Low voltage (LVD) 

2014/35/UE – EN50291 

Summary of Contents for Sensigas ESN26.C

Page 1: ...v 02 11 12 2018 EsiWelma s r l EW117 602_En Sensigas ESN26 C General instructions Via F lli Canepa 134D E 16010 Serra Ricc Genova Italy Ph 39 010 75421 1 Fax 39 010 75421 78 e mail info esiwelma it We...

Page 2: ...lectrical signalling devices or activate the solenoid valve to shut off the flow of gas Carbon monoxide is detected by means of an algorithm referred to as integrated threshold which takes into accoun...

Page 3: ...um 3 metres from the gas operated appliance and at standard face height of the occupants in those premises example 130 170 cm in the kitchen 50 100 cm in the bedroom The detector must not be installed...

Page 4: ...them scrupulously The device must be installed by qualified technicians 3 Effects of carbon monoxide on the human body Carbon Monoxide CO is a colourless odourless and non irritating gas that is clas...

Page 5: ...health but the two most important factors are the concentration of CO and the time of exposure to the gas Typical effects of exposure to CO at concentrations and exposure times over the ones that set...

Page 6: ...connectable in parallel max 9 see wiring diagrams Lifespan of a detector average 6 years from the date of manufacture Max area covered by a detector 40 m approx indicative Visual warnings Green LED po...

Page 7: ...ower supply Yellow LED warm up and sensor anomaly solenoid valve terminal board for connecting up the solenoid valve terminal board LN for the power supply 230Vac Red LED gas alarm fixing screws cover...

Page 8: ...characteristics see technical specifications Detectors must be connected directly to the electric relay without disconnectors or switches between them and must be powered permanently 7 Mounting Remov...

Page 9: ...the entire actuation chain excepting for the sensor which is checked continuously by specific electronic circuitry 2 Once these tasks have been done the detector must indicate its alarm status as foll...

Page 10: ...entrations of test gases could cause permanent damage to the sensing element and may cause the detector to operate incorrectly 9 Operation Normal Green LED on red and yellow LEDs off Gas alarm Red LED...

Page 11: ...ioning of the detector and its capacity to activate the alarm due to the presence of gas In order to avoid the yellow LED flashing when the solenoid valve is not in use a suitable load resistance will...

Page 12: ...and processes that take environmental management into account Refer to the following notes for disposal of the product at the end of its working life or when it is replaced For disposal purposes this...

Page 13: ...l with other ESN detectors that have a solenoid valve command output e g ESN16 and ESN26 for commanding just one solenoid valve See the wiring diagrams below Diagram 1 ESN26 C detector with N O soleno...

Page 14: ...26 C detector with N O solenoid valve 230VAC ESN26 C detector air extractor command Y1 N1 L N E V 230V AC N M L LYA26 C NC NO C M1 N1 L N E V 230V AC N L LYA26 C NC NO C K1 N1 ESN26 C N1 ESN26 C Y1 N...

Page 15: ...9 ESN26 detectors in parallel with N O solenoid valve 12VDC Optional signal buzzer or lamp control Max 9 LYA26 230V AC N L Y1 M N1 L N E V LYA26 NC NO C N9 L N E V LYA26 NC NO C H1 L1 N1 N9 ESN26 Y1...

Page 16: ...602_En Diagram 5 ESN26 C detector with UZY ALE adapter and N C solenoid valve 12VDC Y1 E V 230V AC N M L U1 L N E V LZY ALE LYA20 N1 L N E V LYA26 NC NO C N1 ESN26 C Y1 N C solenoid valve 12VDC U1 UZ...

Page 17: ...ALE adapter and N C solenoid valve 12VDC Optional signal buzzer or lamp control Y1 N9 E V 230V AC N M L U1 L N E V LZY ALE LYA20 Max 9 LYA26 N1 L N E V LYA26 NC NO C H1 L1 L N E V LYA26 NC NO C N1 N9...

Page 18: ...entro il Replace device before 03 2015 14 Dimensions Note Due to our policy of continuous product improvement specifications are subject to change without notice Sensigas ESN26 C Installation date Re...

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