Wall-hung boiler installation and commissioning

Wall-hung boilers refer to gas wall-hung boilers, which are very popular gas water heater products nowadays. Gas wall-hung boilers are more convenient and safer to use than ordinary water heaters. If there is a dry burning, accidental flame out, the temperature is too high and so on, it will turn on the self-protection function. It can also achieve self-regulation of temperature and save energy. This is the reason why wall mounted boilers are more popular than traditional water heaters. In this article, we will learn about wall-hung boiler installation and system commissioning, if you need to take a good look.

Installation of wall-hung boilers

1, first of all, you must use the type of gas specified on the product nameplate label. Natural gas, artificial gas, liquefied petroleum gas, biogas can not be common.

2, wall-hung boiler installation location: only the kitchen or balcony (can not get wet).

3, exhaust pipe: can not lead to the public **** exhaust pipe; exhaust pipe outer pipe not end of the suction holes must be extended beyond the outer wall; exhaust pipe must be tilted from the indoor to outdoor about 3 degrees. Violation of the above requirements will be potentially dangerous or the furnace will not work properly.

4, in the case of ambient temperature may be frozen, and even in this heating season is likely to use (even if it is just a turn on action), must keep the wall-hung boiler power and gas state (IC card gas meter should ensure that there is sufficient prepayment), at the same time, the main circulating pipeline must be kept open, the water pressure of the heating system to maintain at least 0.8 pressure. Once one of the above conditions are not available, wall-hung boilers, pipes and radiators may be frozen, especially in the forced start will cause safety accidents.

5, consider the actual situation of the user's power supply, to ensure that the brown line connected to the fire line, blue line connected to the zero? line, the flower line to ground; wall-hung boilers require grounding, otherwise the internal will be with 36V static electricity, may burn the motherboard; the occurrence of power leakage accidents will cause death or injury (the manual clearly indicates: for all losses caused by not grounded, the manufacturer is not responsible); not recommended to lead the ground line to the water pipe, do not ground line and in the zero line (once the power supply polarity changes, it will cause serious accidents with the shell charged), is strictly prohibited! connect the ground line to the gas pipe.

Wall-hung boiler installation requirements

The installation of gas wall-hung boilers should be installed correctly by professionals. In the gas wall-hung boiler first choose the appropriate installation location, it is recommended that users install the kitchen or the north balcony, so that it is convenient to install the fan port, but also easy to discharge the exhaust gas boiler work; it is best not to install in the bathroom, so as not to corrode the machine because of the humidity of the air inside the bathroom.

(1) wall-hung boiler installation is fixed on the wall, the wall and the back of the wall-hung boiler hooks shall not be pre-buried at the fixed water pipes, wiring, gas pipes and other pipelines, so as not to install the wall-hung boiler is broken.

(2) the back of the wall-hung boiler hooks need to be fixed with a level measuring tape, shall not be observed with the naked eye by experience, in order to avoid the wall-hung boiler hanging tilt, repeated eyeing, resulting in the wall-hung boiler is not fixed securely. If the wall is dry-hanging marble, the general contractor must be informed of the unit in advance to reserve a good fixed point of the wall-hung boiler.

(3) when installing the pipe, the pipe must maintain 3-5 degrees horizontal downward tilt to prevent rain and condensation back to the inside of the wall-hung boiler, resulting in damage to the wall-hung boiler. The size of the hole reserved for the pipe is usually a round hole of 120mm in diameter. In principle, if all the pipe straight section, the longest length of 4m, each additional pipe elbow, the straight section of the corresponding reduction of 1m. wall-hung boilers after the completion of the installation to ensure that: left and right 10cm, up and down 30cm, 60cm directly in front of the sundries and other equipment, in order to facilitate the operation and maintenance.

(4) installation of heating mains, gas piping, domestic water piping, must ensure that the gasket and raw material with filling in place to prevent the occurrence of leakage. Smoke pipe installation requirements: smoke pipe length of more than 1 meter, out of the outer wall need to add hangers.

Wall-hung boiler system commissioning:

①? Heating system filling - slowly into the water, while paying attention to the exhaust, replenish water to 1.0 ~ 1.2 kilograms.

②? Check the system in accordance with the steps of the manual (observe whether the water circuit leakage, check the gas with soap solution? Road for air leakage, reconfirm the circuit connection and system voltage).

③? Boiler commissioning - in accordance with the instructions for gas pressure commissioning, which is to avoid a lot of difficult to later? to determine the key to the problem.

④? Observe the operation and check the system again (make sure the use function and protection is intact).

After the wall-hung boiler is installed, do not disassemble it without authorization to avoid safety accidents. Pay attention to maintenance during daily use. After using it for a while, ask a professional to check it to see if there is any aging of the pipes and other phenomena. When buying a wall-hung boiler, it is best to choose some brands with good reputation and reliable quality. Generally better internal parts of the wall-hung boiler, the price will be higher, of course, the performance will be better, safety is also high, the chance of failure will be smaller.