Water heating is one of the floor radiant heating, and it is also the most popular heating method. Compared with electric heating, it still has quite advantages. The water heating is through the ground coil, the circulating hot water in the pipe, through the heat medium in the radiant layer of the floor, evenly heats the whole ground, and uses the ground's own heat storage and the law of heat radiation upward to conduct from bottom to top to achieve The purpose of heating.This is our Instagram Website: www.instagram.com
Precautions
1. The construction of the floor radiant heating system should avoid cross-construction operations with other types of work, resulting in difficulties in cooperation or unclear responsibilities, delaying the construction period, and difficult to guarantee quality. Users need to let us communicate with the decoration company in advance to coordinate the work process;
2. The water and electricity transformation should be completed before the construction of the floor heating system enters the site. Before the installation of the floor heating system, it should be ensured that the construction of the water and electricity pipelines on the construction site is completed, the closed water test and acceptance of the kitchen and bathroom should be completed, the ground in the construction area is flat and clean, and there are no exposed steel bars, water and electricity pipelines, and any equipment that affects the construction. materials, sundries, etc.;
3. It is the same to ask a decoration company to do pea stone concrete backfill and ask us to do it. We recommend that the decoration company do this project, and the decoration company can also pay attention to backfilling, so as to minimize the possibility of damage to the floor heating during construction;
4. The owner should assist us in coordinating the relationship with the property company and neighbors, and creating conditions for normal construction, including being responsible for handling the corresponding personnel and equipment access certificates, start-of-construction and acceptance approval procedures at relevant departments such as the property.
construction attention
1. The construction of the concrete filling layer shall be completed within 48 hours after the floor heating heating pipe is installed and the hydraulic test is passed;
2. The construction of the concrete filling layer shall be undertaken by a qualified civil construction party, and our unit shall cooperate closely;
3. During the construction of the concrete filling layer, the water pressure in the heating pipe should not be lower than 0.6MPa, and during the curing process of the filling layer, the system water pressure should not be lower than 0.4MPa;
4. The filling layer is a structural layer used to protect the plastic pipe and make the ground temperature uniform. It is generally pea stone concrete, the particle size of the stone should not be greater than 10mm, the volume ratio of cement mortar should not be less than 1:3, and the concrete strength grade should not be less than C15. The thickness of the filling layer should meet the design requirements, and the flatness should not be greater than 3mm;
5. The floor heating system needs to lay expansion joints at the vertical junctions between walls, columns, doors, etc. and the ground. The width of the expansion joints should not be less than 10mm. The width should not be less than 8mm; the above-mentioned expansion joints have been laid before the construction of the concrete filling layer, and care should be taken to protect the expansion joints from being damaged during the construction of the concrete filling layer;
6. During the construction of the concrete filling layer, it is strictly forbidden to use mechanical vibration equipment; construction personnel should wear soft-soled shoes and use flat-headed shovels.
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Debug attention
1. The low-temperature hot water ground radiation heating system has not been debugged, and it is strictly forbidden to use it.
2. The commissioning and operation of the low-temperature hot water ground radiant heating system should be carried out under the conditions of normal heating and power supply.
3. The initial heating (running and debugging) must be carried out after the curing period of the concrete filling layer is over and the filling layer is completely and naturally dried.
4. The commissioning of the low-temperature hot water ground radiation heating system should be carried out by the construction unit with the cooperation of the construction unit.
5. When heating for the first time, the temperature rise of hot water should be gentle, and the temperature of the water supply should be controlled at about 10°C higher than the ambient temperature at that time, and should not be higher than 32°C. At this water temperature, it should run continuously for 48 hours; after that, the water temperature will increase by 3°C every 24 hours until it reaches the design water supply temperature. At this temperature, each component and the heating pipe connected to the water collector should be adjusted one by one until the operation is normal.
6. The heating effect of the low-temperature hot water ground radiant heating system should be based on the temperature indicated by the black ball thermometer 1.5m above the ground in the center of the room as the basis for evaluation and assessment.