Safety Information5EnglishIf using the product after being left idle for an extended period of time,make sure to open the air vent valve to release air.• Running water noises may occur inside, or cooling/heating performancemay degrade.• Use a bucket or hose to catch water. If using Cool mode only, in the winterseason, make sure to remove stagnant water to prevent the product fromfreezing and bursting. After drainage, lock the valve securely.To turn on the product, start the fan coil unit first and then start the heatsource device, e.g. chiller or boiler.To turn off the product, stop the heat source device, e.g. chiller or boiler,first and then stop the fan coil unit.If the heat source device, e.g. chiller or boiler, will not be used for morethan four hours when in Cool mode, stop water circulation.If it is impossible to stop water circulation, decrease the fan speed.• If cold water runs when the fan of the fan coil unit is off, condensationmay occur on the fan coil unit components, such as the main unit, motoror grille, and affect the lifespan of the product.Do not use the product in a hot and humid location with relative humidityover 80%.• There is risk of fire and property loss due to water dropping from theproduct.When using the product in the winter, continuously operate the waterpump to circulate water.If the product will not be used for long periods of time, completely drainthe system.• The product may freeze and burst, resulting in property loss.