The installation process of fan coil unit is as follows: construction preparation-motor inspection and trial operation-surface cooler inspection-air extraction and pressure test-hanger installation-fan coil unit installation-pipe connection. In the process of fan coil installation, there are two points to pay attention to:
1, when installing the fan coil unit, the tuyere surface should be horizontal and vertical, and it must be close to the wall or decorative board, which is beautiful and generous;
2, the air outlet should be set in the main place of indoor personnel activities, air inlet and outlet should be no obstacles, and should have a certain distance, so as not to form a short circuit phenomenon.
Fixed installation of fan coil bracket
1. Fan coil units shall be fixed with independent supports and hangers.
2. Determine the rooting position of the boom according to the construction drawing, and generally use expansion bolts for rooting.
3. According to the different models and weights of fan coil units, choose the suspenders with corresponding specifications.
4. The installation of vibration-damping hanger should meet the design requirements.
Installation requirements of fan coil unit
1. The installation height and position of horizontal fan coil should be correct. The connection between the suspender and the coil should be leveled with double nuts, and a rubber pad with a thickness of 3㎜ should be added to the nuts.
2. The lifting coil should be inclined to the drain of the water tray.
3. The hidden horizontal fan coil unit should have an inspection door on the ceiling to facilitate the maintenance of the unit.
4. Vertical fan coil units shall be installed firmly, with correct position and height.
Precautions for fan coil installation:
1, handle the fan coil carefully, and don't handle the fan coil together with the impeller and volute to avoid the deformation of the impeller. Do not use the inlet and outlet pipes as handles.
2. When hoisting, the fan coil should be installed horizontally to ensure the smooth discharge of condensed water. The water connection pipe is used for feeding and discharging, and the threaded connection should use raw material belt to ensure tight sealing. When taking over, take up the line from the water inlet side of the coil, and use the hose connector to protect the water connector of the fan coil from being sprained.
3. When the fan coil unit is installed, the inlet and outlet pipes should be equipped with valves to adjust the water volume, and electric valves can also be used to control with temperature controllers. The connection method of electrical appliances should strictly follow the electrical connection diagram of fan coil unit.
4. The weight of the air duct and water pipe connected to the fan coil unit should not be borne by the fan coil unit itself alone.
5. The fan-coil unit must be cleaned before being powered on to ensure that there are no foreign bodies in the fan, water pipes and pipelines.
6. When using water, the vent valve of the fan coil must be opened to discharge air during pigging, and the vent valve should be closed when water flows out.
7. The temperature of cold water and hot water of the fan coil shall not be lower than 5 degrees and 80 degrees respectively. The water quality should be clean, and soft water should be used as much as possible.
8. Regularly clean the central air conditioning fan coil filter and surface cooler according to the site conditions.
9. When the fan coil unit is shut down, pay attention to antifreeze in winter to prevent the pipeline from freezing and cracking.