Fan coil installation and use
1) The surface-mounted vertical fan coil can be placed under the interior window sill, concealed horizontal or ceiling type can be placed in the reserved recess in the wall, the top of the unit is kept horizontal or the drain side is slightly lower for drainage .
2) The inlet and outlet pipes of the unit should be equipped with valves to regulate the amount of water, and pipes and valves should be well insulated to prevent condensation. Pipe thread connections should be sealed, do not use too much force when connecting, so as not to damage the coil.
3) The weight of the water pipe connected to the unit must not be borne by the unit.
4) The condensate pipe can be hosed, but it must not be flattened or bent to ensure smooth drainage.
5) After the unit is installed, the fan impeller should be turned first, and no abnormal sound can be heard before it can be connected.
6) The water supply temperature during the summer cooling operation of the unit is 7°C, and the water supply temperature during the winter heating operation is 60°C. The water should be clean and softened.
7) When in use, open the run valve first and then turn it off when water flows out.
Fault diagnosis and elimination of fan coil
malfunction | Cause | diagnosis method | Method of exclusion |
Fan does not run | Line failure | Use a multimeter or pencil to determine if there is electricity | Repair circuit |
Bad capacitor | Measured with a multimeter resistance file | Replace | |
Motor winding burnout | Check the winding and ground resistance with a multimeter or measure the insulation resistance with a megohmmeter | Repair or replace | |
Inadequate control valve opening | Check valve | Open the big valve | |
Dirty heat exchanger surface | Visual inspection | Cleaning | |
There is air in the coil | Pipeline has vibration and noise | Exhaust air from running valve | |
Air filter plugged | Visual inspection | Cleaning | |
Insufficient water supply | Check the water supply valve | Open the big valve | |
Abnormal water supply temperature | Measuring water temperature | Check the freezer or boiler | |
Improper temperature adjustment | Check the air quality | readjust | |
Leaking | Water tray tilted unfavorable drainage | Check whether the water tray is horizontal | Adjust |
Drainage plug | Check the outlet | Remove obstructions | |
Condensate underwater drops on the pipeline | Hot and cold water pipes are kept warm | Re-Insulation | |
Running valve is not closed | Check wind valve | Shut down | |
Peculiar smell blowing out | Wind turbine blade surface corrosion | Check fan blades | Replace |
The filter is broken and deteriorated | Check air filter | Replace | |
Insulation material damaged and deteriorated | Check insulation material | Replace | |
There is too much dust in the unit | Check the inside of the unit | Remove dirt |
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