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Fan coil installation and maintenance instructions
**Installation and Maintenance Instructions for Fan Coil Units**
Proper installation and regular maintenance are essential to ensure the efficient operation and longevity of fan coil units. Follow the guidelines below to guarantee safe and effective use.
**1. Unit Installation**
1.1 Handle the unit with care during transportation. Avoid using the impeller or volute as a handle to move the unit.
1.2 Ensure all internal components remain intact and prevent foreign objects from entering the volute or cooler.
1.3 The main body of the unit must be installed horizontally. Failure to do so may cause improper condensate drainage, leading to leaks.
1.4 The unit should only support its own weight. Do not attach water pipes or other external forces to it. Also, make sure there is sufficient space for maintenance and access.
**2. Pipeline Configuration**
2.1 Connect the inlet and outlet pipes in the direction of water flow. Ensure connections are flexible and avoid excessive force.
2.2 All pipes, condensate lines, and valves must be tightly sealed. Properly treat insulation materials to prevent condensation from penetrating into the insulation layer.
**3. Electrical Wiring**
3.1 The power supply should be 220V ±10% at 50Hz.
3.2 Follow the electrical schematic diagram strictly when wiring. Incorrect wiring can damage the motor.
3.3 Never share a single switch among multiple units, or connect two of the high, medium, or low-speed settings to the same line. This could lead to motor burnout.
3.4 A grounding bolt is provided at the bottom of the junction box for connection to the protective grounding system during installation.
**4. Water Supply Requirements**
4.1 During summer operation, the water temperature should not be lower than 5°C. In winter, hot water should not exceed 80°C. Use clean, softened water only. Do not use steam or water above 85°C, as this can cause overheating and damage.
4.2 When the unit is not in use for an extended period, fill the coil with water to reduce corrosion.
4.3 In winter, if the unit is turned off or being commissioned, drain the water from the coil or take anti-freezing measures to prevent pipe freezing and cracking.
**5. Additional Notes**
5.1 Before the first operation or when switching between heating and cooling modes, open the bleed valve to remove air from the system. Otherwise, heat transfer efficiency will be affected.
5.2 The outer casing of the coil is made of sprayed plastic. Avoid using thinner or gasoline for cleaning.
5.3 When starting the unit, begin at the highest speed setting and then adjust to other speeds as needed.
5.4 If the conditions listed in the table are exceeded, condensation may occur. In such cases, increase the water temperature or reduce the water flow rate.
**6. Maintenance**
6.1 Regularly clean the surface cooler and filter to maintain airflow and heat transfer efficiency.
6.2 If the unit malfunctions, it should be repaired by a qualified technician.
For more detailed information or visual guidance, refer to the image below:
*Source: http://news.chinawj.com.cn*
*Editor: Hardware Business Network Information Center*
By following these instructions, you can ensure optimal performance and extend the lifespan of your fan coil unit. Always consult a professional if unsure about any steps during installation or maintenance.
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