How to exhaust the wall-hung boiler exhaust
Wall-hung boilers are common heating equipment in modern homes, and their normal operation is inseparable from correct exhaust operations. Improper exhaust may result in reduced heating efficiency or even equipment damage. This article will introduce in detail the steps, common problems and precautions for wall-hung boiler exhaust, helping users quickly master exhaust techniques.
1. The necessity of exhaust from wall-hung boilers
During the operation of the wall-hung boiler, air may accumulate in the pipes, causing the following problems:
| Problem phenomenon | Cause analysis |
|---|---|
| Poor heating effect | Air blocks hot water circulation |
| Abnormal noise from equipment | Air creates an air hammer effect in the pipe |
| Increased energy consumption | The system requires additional work to overcome air resistance |
2. Exhaust operation steps
The following is the standard exhaust process (taking common gas wall-mounted boilers as an example):
| steps | Operating Instructions | Things to note |
|---|---|---|
| 1. Preparation | Turn off the power and prepare a water container and screwdriver | Make sure the system is cool |
| 2. Position the exhaust valve | Usually on top of the radiator or on the side of the boiler | Refer to the manual to confirm the location |
| 3. Turn on the exhaust | Turn the exhaust valve 1/4 turn counterclockwise | Hearing a "hissing" sound means exhausting air |
| 4. Observe drainage | After the water is stable, close the valve. | The water flow should be continuous without bubbles |
| 5. System reset | Wipe away water stains and restore power | Check whether the pressure gauge is at 1-1.5bar |
3. Solutions to common problems
| Problem description | Possible reasons | Solution |
|---|---|---|
| Exhaust valve does not discharge water | Insufficient system pressure/clogged valve | Add water to standard pressure/clean valve |
| Bubbles persist | There is a leak in the system | Check pipe tightness |
| Still not hot after exhaust | Air is not exhausted/water pump failure | Repeat the exhaust process/contact after-sales service |
4. Professional advice
1.Exhaust frequency: It is recommended to do this once a month for new houses and once a quarter for old houses.
2.Best time: The exhaust must be exhausted before the start of the heating season and after long periods of inactivity.
3.Safety tips: If the operation is still abnormal after 3 operations, stop immediately and contact a professional
5. Exhaust characteristics of different brands
| brand | Exhaust valve type | Special instructions |
|---|---|---|
| power | Automatic exhaust valve | Automatic devices need to be checked regularly for failure |
| Bosch | Manual knob type | The safety lock must be pressed at the same time when exhausting |
| Ariston | Integrated pressure gauge | It is necessary to record the pressure value changes before and after exhausting |
Through the above systematic exhaust guidance, users can effectively solve various problems caused by air accumulation in wall-mounted boilers. It is recommended to save this guide for emergencies and perform regular system maintenance to extend the service life of the equipment. In case of complicated situations, be sure to contact professional after-sales service personnel.
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