Plate FHC210HDQ Brazed Plate Heat Exchangers are used in a variety of different industries, but one of the most critical of its uses is found in cooling water. Because of this, it is important for people to know all they can about brazed plate heat exchangers in order to keep them working efficiently. When it comes to cooling water, plate types are used. These include: single cavity, double cavity, reciprocating cam, rotary vane and scroll. They can also be combined with each other depending on the need. The first step in cleaning them involves removing the outer shell. This includes removing the pump and filter housing as well as the air conditioner. Once the shell is removed, you will then have to look inside to see what the problem is. It could be that the pump is not running, leading to an air conditioned compressor drawing air that causes the refrigerant lines to freeze. In some instances, the air can be draining into the evaporator coils, which is why there is a dripping sound. You will also have to determine whether or not the valves have become clogged. This will require you to open them and check for any signs of obstructions, such as metal filings.If the valves are not functioning properly, it could lead to a loss of cooling capacity and ultimately damage your machine. Clogged heat exchangers can be cleaned by a professional company who specializes in cooling water systems. After checking for clogs, you will then need to check the seals between the exchanger and the evaporator coil. While these seals will often get clogged, they will also wear out over time and have to be replaced.