Installation and operation manual of household gas alarm

Household gas alarm is the “goalkeeper” of family safety. In order to ensure that it can effectively monitor the leakage of natural gas, liquefied gas or carbon monoxide, the correct installation location and daily maintenance are very important.

The following is a detailed operation guide:

The first stage: installation location selection (the most critical)

The location of the alarm depends on the type of gas used in your home. The installation height is completely different with different gas specific gravity.

Determine the height according to the type of gas.

Natural gas/artificial gas methane (CH₄): lighter than air (floats), within 30cm from the ceiling, or installed at the ceiling.

Liquefied petroleum gas propane/butane: heavier than air (sinking), within 30cm from the ground, or installed at the lower corner.

Carbon monoxide CO: recommended to be installed at breathing height (about 1.5m from the ground) or on the wall of bedroom/living room.

Avoid “dead corners” and interference sources

No installation location:

• Dead corners, cabinets, etc where air is not circulating.
• Directly above the stove (easy to be smoked by high-temperature oil, leading to false alarm or damage to the sensor).
• Next to windows, exhaust fans and ventilation fans (air flow will blow away the leaked gas, which will lead to undetectable).
• Wet areas (such as the shower, water vapor will interfere with the sensor).

Keep the distance: it is recommended to keep the horizontal distance from the gas stove or gas meter between 1.5m and 4m.

Stage II: Installation Steps

Fixed installation

• Positioning drilling: according to the selected position, mark the hole position on the wall with a pencil. Use an electric drill to punch holes and insert the expansion rubber plug.
• Fixed base: Align the mounting base of the alarm with the hole position, and tighten it with self-tapping screws.
• Hook the main unit: aim the card slot on the back of the alarm main unit at the base, push it up or fasten it, and install it in place when you hear a click.

Power connection

• Plug-in type: plug into a 220V household socket.
• Note:sockets that are energized all the year round must be used, and sockets controlled by switches (such as light switches) are strictly prohibited, so as not to turn off the power by mistake and cause the alarm to fail.
• Battery type: install the battery according to the positive and negative directions(usually used for renting a house or without a socket).

Linkage manipulator/solenoid valve (if any)

If you buy a matching manipulator (used to automatically close the gas valve), you need to install it on the main valve handle of the gas meter and connect it with the alarm through signal line or wireless pairing.

The third stage: debugging and self-inspection

Power-on preheating

After the power supply is connected, the alarm usually gives a “drip” sound and the indicator light flashes.

Preheating time: The sensor needs to be preheated for1-3 minutes (depending on the model), during which it may give an alarm briefly, which is normal. After preheating, the green light is always on or flashing, and it enters the monitoring state.

Functional test (recommended once a month)

• Operation: Press and hold the “Test” key on the panel for 3-5 seconds when the power is on.
• Normal response: the instrument should give a harsh alarm sound (usually greater than 85 dB)and the red light flashes quickly.
• Exception handling: If there is no sound or the sound is weak after pressing the key, the buzzer is faulty and needs to be replaced immediately.

Simulated air leakage test (use with caution)

You can use a small amount of lighter gas (note that it is not a large amount of spray, but a little spray) to test near the air inlet of the alarm. If the alarm alarms quickly, the sensor is sensitive.

Note: It is forbidden to use pesticide spraying alarm, which will poison the sensor!

The fourth stage: maintenance and life management

Daily cleaning

• Dust removal: every 3-6 months, use a vacuum cleaner to remove the dust from the gap in the alarm shell, or use a dry soft brush to clean it. Dust accumulation will block the air intake.
• Anti-oil pollution: When the kitchen fume is heavy, it is recommended to put a special anti-oil cover (breathable)on the alarm to prevent oil pollution from blocking the sensor.

Life and replacement

Effective life: Gas sensors have a life.

The lifetime of electrochemical/semiconductor sensors is usually 3-5 years.

Scrap signal: When the alarm gives out a “drip” sound every tens of seconds (and the yellow light flashes), it usually means that the sensor has run out of life and must be replaced.

Emergency response guide

When the alarm sounds continuously and rapidly and the red light flashes:

• Never switch on or off electrical appliances: never turn on or off the lights, unplug or turn on the exhaust fan! An electric spark will detonate gas.
• Close the valve: quickly close the main valve of the gas pipeline (or the manipulator will automatically close).
• Open the window for ventilation: gently open the doors and windows to let the air circulate and reduce the gas concentration.
• Evacuation alarm: evacuate to the outdoor safety zone quickly, call the gas company or call 119.