GW14712 - Gas detector Gewiss - Free user manual and instructions

Product Type	Gas Detector
Brand	Gewiss
Model	GW14712
Detected Gas	Natural Gas (Methane)
Power Supply	230 V ~ 50 Hz
Power Consumption	Less than 3 W
Alarm Sound Level	85 dB at 1 m
Detection Threshold	10% of LEL (Lower Explosive Limit)
Response Time	Less than 30 seconds
Operating Temperature	-10 °C to +40 °C
Relative Humidity	10% to 95% non-condensing
Dimensions	85 x 85 x 40 mm
Weight	150 g
Housing Material	ABS
Protection Rating	IP20
Main Functions	Gas detection, audible and visual alarm, self-test, output for valve control or ventilation
Maintenance and Cleaning	Clean with a soft, dry cloth. Test the device every week.
Service Life	5 years
Safety	Compliant with EN 50194 standard
Warranty	2 years

Frequently Asked Questions - GW14712 Gewiss

How to install the Gewiss GW14712 gas detector?

Mount the detector on the wall, preferably in a kitchen or near a gas source, at a height of 1.5 to 2 meters from the floor. Connect it to the 230 V mains. Follow the installation diagram provided in the manual.

What to do in case of alarm?

Do not light a flame, do not operate any electrical switch. Open doors and windows, shut off the gas supply if possible, evacuate the premises and call emergency services.

How to test the gas detector?

Press the TEST button on the device. The alarm should sound and the red LED flash. If not, check the power supply or replace the device.

Where to place the gas detector?

Install it in the room containing a gas appliance (boiler, stove) within 1.5 m of the source, but not directly above a flame. Avoid drafts, steam and dust.

Why does the alarm sound for no reason?

This may be due to dust buildup, high humidity, or solvent vapors. Clean the device with a soft, dry cloth. If the problem persists, contact customer service.

What is the service life of the GW14712 detector?

The service life is 5 years from commissioning. After this period, replace the device to ensure reliable detection.

How to clean the gas detector?

Use a soft, slightly damp cloth to wipe the housing. Do not use chemical or abrasive cleaners. Ensure the device is disconnected from power before cleaning.

What does the flashing red LED mean?

A rapid flashing of the red LED accompanied by the audible alarm indicates a dangerous gas concentration. A slow flash may indicate a device fault or end of life.

Is the detector compatible with existing installations?

Yes, it can be connected in parallel with a gas shut-off valve or an air extractor. Refer to the manual for the wiring diagram.

What to do if the device does not turn on?

Check the mains connection and circuit breaker. If the device remains off, it may be defective. Contact Gewiss customer service.

USER MANUAL GW14712 Gewiss

Methane gas (CH ₄ ) detector

Three-panel illustration showing kitchen utensils: cooking, heating, and cleaning (no text or symbols)

graph TD
    A["Elettrovalvola"] --> B["Ch4"]
    B --> C["Chamber"]
    C --> D["Refrigerator"]
    D --> E["Valve"]
    F["Caldaia"] --> G["Refrigerator"]
    G --> H["Refrigerator"]
    I["Water Supply"] --> J["Refrigerator"]
    K["Refrigerator"] --> L["Refrigerator"]

L'INSTALLAZIONE DEL RIVEVATORE DI GAS NON ESONERA DALL'OSSERVANZA DI TUTTE LE REGOLE RIGUARDANTI LE CARATTERISTICHE, L'INSTALLAZIONE E L'USO DEGLI APPARECCHI A GAS, LA VENTILAZIONE DEI LOCALI E LO SCARICO DEI PRODOTTI DELLA COMBUSTIONE PRESCRITTI DALLE NORME UNI ATTUATIVE DELL'ART. 3 DELLA LEGGE 1083/71 E DALLE DISPOSIZIONI DI LEGGE VIGENTI NEL PAESE INTERESSATO.

L (+)
N (-)
12V ac/dc

graph TD
    A["1"] --> B["2"]
    B --> C["3"]
    C --> D["4"]

1 NA/NC, 10A (NA) / 3A (NC) - 250V ac

Exploded view diagram of an electronic device showing internal components and casing (no text or labels)

Line drawing of a wall-mounted electronic device with display screen and buttons (no text or symbols)

ISTRUZIONI D'IMPIEGO

Descrizione comandi

Methane gas (CH₄) detector

Attention - Important

• Thank you for selecting this Gewiss product.
  Gewiss products have been designed with attention to detail and built using only the very best materials. Gewiss products will guarantee excellent and lasting performance.
• The installer is kindly requested to fill out this leaflet and then hand it to the end user, asking that he/she carefully read it.
• Carefully read the instructions below as they provide important information on how the gas detector works, how it should be fitted and serviced (routine and extraordinary maintenance) and what to do with it once it reaches the end of its expected life.
• The manufacturer may not be held liable for injury to persons or pets or damage caused by the use of the gas detector in situations and conditions other than those indicated in the instructions below.
• The manufacturer may not be held liable in the case that the detector is sold in non-original packaging. Immediately after removing the product from its packaging, make sure that it is not damaged.
• Make sure that the main power supply has been switched off before attempting to fit the device or touch the wiring.
• The gas detector will only work when plugged in to the mains. A device has a one minute delay after a blackout or during installation, during which time its electronic components are reset (see how it works - page 26).
• The sensor reaches full efficiency after 10 days from plugging in.
• Check that the detector is suitable for the type of gas it is expected to detect.
• Before connecting the detector, make sure that the data on its ratings plate match the mains supply.
• Connect the detector as indicated in the drawings on page 23.
• All Chorus products must be fitted in compliance with HD 384 - IEC 364 standards for domestic appliances and similar devices, in dust-free areas and where there is no need for special water-proofing protection.
• Always contact an authorised technician or Gewiss's own customer service ("SAT" - see page 82) if the detector is faulty and/or malfunctions and in the case of extraordinary maintenance and scrapping.

INDEX

GENERAL DESCRIPTION

- Functions 18

INSTALLATION INSTRUCTIONS

- Technical features 19

- Application logic 20

- Terminals 22

- Wiring diagrams 23

- Assembly.... 24

OPERATING INSTRUCTIONS

- Description of the controls 25

- How it works.... 26

- Test procedure 28

- Recommendations for proper use 28

GENERAL DESCRIPTION

Functions

Chorus electronic gas detectors for domestic use:

• detect the presence of combustible gas
- activate a solenoid valve via an internal circuit that cuts off the supply of gas at its source and must be manually reset
- signal an alarm giving an acoustic and luminous warning.

Technical features

Gas detector with tin dioxide semiconductor sensor.

Acoustic/luminous alarm signal.

Output relay with hermetically sealed contacts that control the gas cut-off solenoid valve.

TECHNICAL FEATURES

Power source	12V ac/dc +10/-15%
Electrical input	2VA
Alarm threshold	9% LIE (lower limit of esplosivity)
Acoustic alarm	piezoelectric siren producing 85dB at 1 m one switching contact
Relay output
	1 NO/NC, 10A (NO) / 3A (NC) - 250V ac
Working temperature	from +5°C to +40°C
Relative humidity	+30 - 90%, condensation free
Fixing	slots into Chorus bracket
Size	2 Chorus modules
Once installed and plugged in, the detector will last for 5 years.

RELEVANT STANDARDS

• EN 50081-1; EN 50082-1; CEI 216-8

* The sensor reaches full efficiency after 10 days from plugging in.

INSTALLATION INSTRUCTIONS

Location advice

ADVICE ON POSITIONING

Install the Methane (CH4) gas detector at a maximum of 30 cm from the ceiling and from 1 to 4 m from gas appliances.

INSTALLATION INSTRUCTIONS

Location advice

Warning! Do not install the detector near cooking appliances, sinks, air vents, heating and air conditioning equipment, windows, ventilation equipment, and anywhere room conditions could jeopardize the correct operation of the detector.

Three-panel illustration showing a kitchen scene with a drone flying overhead, a cooking pan on a stove, and a kitchen sink with a hand washing the dish (no text or symbols)

graph TD
    A["Solenoid valve"] --> B["Boiler"]
    B --> C["Ch4 Gas Outlet"]
    C --> D["Household with Ventilator"]
    D --> E["Refrigerator"]
    E --> F["Main Dish"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#cff,stroke:#333

INSTALLING A GAS DETECTOR DOES NOT IN ANY WAY EXEMPT YOU FROM FOLLOWING ALL THE REGULATIONS REGARDING THE CHARACTERISTICS, INSTALLATION AND USE OF GAS APPLIANCES, ROOM VENTILATION, AND VENTING OF COMBUSTION PRODUCTS AS PROVIDED FOR BY THE UNI STANDARDS IN ACCORDANCE WITH THE LAW 1083/71 ART. 3 AND OTHER PROVISIONS OF THE LAW IN FORCE IN THE COUNTRY INVOLVED.

INSTALLATION INSTRUCTIONS

Terminals

The detector can be connected to 230V - 50 Hz mains supply(if requested) by means of a 230V ac - 12V dc power supply module(GW 10-12-14719)

L (+)

N (-)

12V ac/dc

graph TD
    A["1"] --> B["2"]
    B --> C["3"]
    C --> D["4"]

1 NO/NC, 10A (NO) / 3A (NC) - 250V ac

Contact without potential that cuts off the flow of gas via a solenoid valve with manual resetting (NO or NC).

Additional NO contact for local and/or remote signalling function.

Installation and wiring of electrical equipment and devices must be performed by qualified personnel in compliance with the regulations and laws in force. The manufacturer will not assume any responsibility for the use of products that should be installed according to special room/installation standards; the responsibility for this lies with the installer. The examples shown in this document are for illustration purpose only. When doing the wiring, strictly follow the laws and regulations in force.

Warning: Before installing the product, turn off the power.

INSTALLATION INSTRUCTIONS

Wiring diagrams

12V power supply of the detector and solenoid valve

230V power supply of the detector and solenoid valve

12V dc

INSTALLATION INSTRUCTIONS

Assembly

Exploded view diagram of an electronic device showing internal components and casing (no text or labels)

After installing the detector, the installer should attach the printed sticker on the detector in the pack as shown in the figure below. This sticker indicates the recommended date for replacement of the detector.

Once installed and plugged in, the detector will last for 5 years.

2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017

Line drawing of a wall-mounted electronic device with display screen and buttons (no text or symbols)

OPERATING INSTRUCTIONS

Description of the controls

OPERATING INSTRUCTIONS

How it works

The first time the detector is switched on, it performs an initialization phase lasting 60 seconds during which the detector is not operational.

Once the initialization phase has ended, the detector is ready for normal operation.

If there is a fault in the detector sensor, the green LED and the yellow LED are steady on.

OPERATING INSTRUCTIONS

How it works

Device alarm activated.

When the alarm threshold is exceeded the green and red LEDs instantly light up and the acoustic signal is activated. After 20 seconds the relay switches over (solenoid valve command).

When the alarm situation ends, the detector automatically returns to its normal operating mode.

WARNING: In the event of an alarm:

1) Put out any live flames.
2) Close the gas meter cock.
3) Do not switch lights on or off. Do not use electrical appliances or devices.
4) Open doors and windows to increase the air circulation.

If the alarm stops, find out what set off the alarm and act accordingly.

If the alarm continues and you cannot find what set off the alarm or cannot eliminate it, leave the building immediately and call the emergency services from an external line.

WARNING: a smell of gas might be detected before the appliance gives the alarm.

OPERATING INSTRUCTIONS

Test procedure

By pressing the Test key, the buzzer is activated (red and green LEDs steady on)

By keeping the Test key down for more than 20 seconds, the relay also switches over (buzzer activated, red and green LEDS steady on).

Recommendations for proper use

• Do not put cloths containing Alcohol, Acetone, Ammonia, Bleach, or Solvents near the gas detector.
• Do not spray anything near the gas detector.
• Do not put lighters or cylinders with the gas turned on near the gas detector.
• Steam from cooking or polluting dust can alter sensor performance over time.
• Do not open or tamper with the appliance: danger of electric shocks and malfunctions.
• Only use a slightly damp cloth to clean the appliance.

FRANÇAIS

Attention - Important

Three-panel illustration showing a kitchen scene with a drone flying overhead, a cooking pan on a stove, and a kitchen sink with a hand washing the dish (no text or symbols)

graph TD
    A["CH4"] --> B["Chaudière"]
    C["Electrovanne"] --> D["Chaudière"]
    B --> E["Chaudière"]
    D --> F["Chaudière"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333
    style D fill:#fcc,stroke:#333
    style E fill:#ffc,stroke:#333
    style F fill:#fcc,stroke:#333

L'INSTALLATION DU DETECTEUR DE GAZ NE DISPENSE EN AUCUN CAS DU RESPECT DE TOUTES LES REGLES CONCERNANT LES CARACTERISTIQUES, L'INSTALLATION ET L'UTILISATION DES APPAREILS A GAZ, LA VENTILATION DES LOCAUX ET LE TRAITEMENT DES PRODUITS DE LA COMBUSTION PRESCRITES PAR LES NORMES UNI METTANT A EXECUTION L'ART. 3 DE LA LOI 1083/71 ET PAR LES DISPOSITIONS LÉGALES EN VIGUEUR DANS LE PAYS EN QUESTION.

Description des bornes

L(+)
N (-)
12V ac/dc

graph TD
    A["1"] --> B["2"]
    B --> C["3"]
    C --> D["4"]

1 NA/NC, 10A (NA) / 3A (NC) - 250V ac

Exploded view diagram of an electronic device showing internal components and casing (no text or labels)

Line drawing of a wall-mounted electronic device with a display screen and ports (no text or symbols)

INSTRUCTIONS POUR L'EMPLOI

Three-panel illustration showing a kitchen scene with a drone flying overhead, a cooking pan on a stove, and a kitchen sink with a hand washing the dish (no text or symbols)

graph TD
    A["Power Supply Unit"] --> B["CH₄"]
    B --> C["Chamber with Dish"]
    C --> D["Household with Lighting Panel"]
    D --> E["Valve"]
    F["Electroválvula"] --> G["Valve"]
    G --> H["Valve"]
    H --> I["Valve"]
    I --> J["Valve"]
    J --> K["Valve"]
    K --> L["Valve"]
    L --> M["Valve"]
    M --> N["Valve"]
    N --> O["Valve"]
    O --> P["Valve"]
    P --> Q["Valve"]
    Q --> R["Valve"]
    R --> S["Valve"]
    S --> T["Valve"]
    T --> U["Valve"]
    U --> V["Valve"]
    V --> W["Valve"]
    W --> X["Valve"]
    X --> Y["Valve"]

L(+)

N (-)

12V ac/dc

graph TD
    A["1"] --> B["2"]
    B --> C["3"]
    C --> D["4"]

1 NA/NC, 10A (NA) / 3A (NC) - 250V ac

Exploded view diagram of an electronic device showing internal components and casing (no text or labels)

Line drawing of a wall-mounted electronic device with a display screen and ports (no text or symbols)

L (+)
N (-)

12V ac/dc

graph TD
    A["1"] --> B["2"]
    B --> C["3"]
    C --> D["4"]

1 NA/NC, 10A (NA) / 3A (NC) - 250V ac

Exploded view diagram of an electronic device showing internal components and casing (no text or labels)

Line drawing of a wall-mounted electronic device with a display screen and control buttons (no text or symbols)

BETRIEBSANLEITUNG

Where affixed on the equipment or package, the barred waste bin sign indicates that the product must be separated from other waste at the end of its working life for disposal. At the end of use, the user must deliver the product to a suitable recycling centre or return it to the dealer when purchasing a new product. Adequate disposal of the decommissioned equipment for recycling, treatment and environmentally compatible disposal contributes in preventing potentially negative effects on the environment and health and promotes the reuse and/or recycling of equipment materials. Gewiss actively participates in activities that promote the correct reuse, recycling and recovery of electric and electronic equipment. Abusive product disposal by the user is punishable by law with administrative sanctions. For further information, please contact your local sanitation service or product dealer.

According to article 9 paragraph 2 of the European Directive 2004/108/EC and to article R2 paragraph 6 of the Decision 768/2008/EC, the responsible for placing the apparatus on the Community market is:

GEWISS S.p.A Via A. Volta, 1 - 24069 Cenate Sotto (BG) Italy Tel: [phone] Fax: [phone] E-mail: [e-mail]

[phone]

8.30 - 12.30 / 14.00 - 18.00