Porque entra ar na rede de aquecedor solar, evite esse defeito em sua instalação.

Summary

This video discusses common issues related to the installation of water heating systems, specifically focusing on the importance of proper water pressure and air management in the system. It highlights how incorrect positioning of the water tank and inadequate pressure can lead to air entering the system, causing inefficient water flow and heating. The video also covers solutions, such as adjusting the height of the water tank and ensuring proper ventilation, to prevent these issues and ensure optimal performance of the water heating system.

Takeaways

• 😀 The flow of water in a heating system can be disrupted by air entering the pipes, especially if the system is under high pressure.
• 😀 When water is heated in a boiler, air bubbles accumulate at the top due to the physical properties of water and the design of the system.
• 😀 To prevent air from entering the system, it's important to raise the water tank above the boiler to maintain proper pressure.
• 😀 A low water tank, just above the boiler, causes slow water flow and can lead to air entering the system, impacting the efficiency of the pump.
• 😀 Air trapped in the boiler affects the flow of water, and the correct installation of air vents and respiratory connections is critical to avoid this.
• 😀 In a system with a pressurizer, water flows faster, but if the water tank is too low, air can still enter the network and affect water circulation.
• 😀 Raising the water tank increases the column of water, improving pressure and minimizing issues like air entering the boiler or disrupting flow.
• 😀 The common misconception is that the volume of water affects pressure; it’s the height of the water column that matters for generating pressure.
• 😀 Proper installation of the water tank and boiler, including air vents, helps ensure smooth operation and avoids air buildup that can cause problems.
• 😀 In systems where the water tank is too close to the boiler, the user may never get hot water unless the tank overflows or is positioned at least 50 cm above the boiler.

Q & A

Why does air enter the hot water system?

Air enters the hot water system when the water flow is insufficient to create the necessary pressure for the water to circulate properly. This happens when the water entering the boiler is too low, causing the water to not have enough force to push the air out of the system.

What role does the pressurizer pump play in the system?

The pressurizer pump increases the water pressure after the float valve in the boiler, ensuring that water flows through the system with greater speed and pressure, preventing air from entering the system.

How does the size of the gap between the tank and the boiler affect water flow?

A small gap between the tank and the boiler doesn't allow enough water pressure to push the water quickly into the boiler, causing the water to flow slowly, which can lead to air entering the system.

What is the impact of air accumulating in the boiler?

Air accumulation in the boiler can hinder proper water flow, especially during heating. As the water heats up, air bubbles form, and if the air is not properly vented, it can affect water circulation and cause operational problems in the heating system.

What is the purpose of the 'vent' in the system?

The vent allows the air that accumulates in the upper part of the boiler to escape. This is important to ensure that the water circulates efficiently without the hindrance of trapped air, which can reduce the system's performance.

What problem arises if the water tank is too close to the boiler?

When the water tank is positioned too close to the boiler, the water pressure is not sufficient to properly refill the boiler. This causes water to flow slowly, and air can enter the system, potentially leading to issues with heating and water flow.

How does the height difference between the water tank and the boiler affect the system?

The greater the height difference between the water tank and the boiler, the better the pressure for water to flow naturally into the boiler. This minimizes the likelihood of air entering the system and ensures more efficient water circulation.

What is the effect of using a larger water tank?

A larger water tank allows for better pressure and a more consistent water supply. It can help prevent the issues of air entering the system, as the increased height of the tank provides greater water pressure to the boiler.

Why is it problematic if a water tank is installed too low?

When a water tank is installed too low, it does not generate enough pressure to push the water effectively into the boiler. This can result in water flow problems and cause air to enter the system, leading to inefficiency and potential breakdowns.

What is the difference between a high-level and low-level water tank installation?

A high-level water tank ensures better water pressure by providing a greater column of water. In contrast, a low-level tank lacks sufficient pressure, which can cause slow water flow, inefficient heating, and air entering the system.