Fan coil units (FCUs) are commonly used terminal equipment in air conditioning systems. They work by passing room air over a chilled or hot water coil inside the unit to cool or heat it, before supplying this conditioned air into the room to lower or raise the indoor temperature and meet comfort requirements. Consequently, they are widely used in hotels, apartments, restaurants, hospitals, offices, and other spaces, where they are quite popular.
However, after prolonged use and without regular maintenance, fan coil units can encounter various issues. A common problem encountered in many projects is the air supplied by the FCU not being cold or hot enough, leading to reduced air conditioning effectiveness. So, how exactly should this problem be solved?
How to resolve the issue of insufficient cooling or heating from a fan coil unit?
Let's use the winter operation of an FCU as an example. Because winter temperatures are very low, the fan coil unit requires a certain heating-up time; it's impossible to get hot air immediately upon startup. You need to wait a while. If this situation persists, it indicates other underlying problems. Check if the FCU's thermostat settings are correct and if windows and doors are properly closed. If external factors are ruled out, it's necessary to check for air trapped inside the FCU's coil, issues with the supply water temperature to the unit, or whether the coil fins are oxidized, among other potential problems. If these issues are present, they need to be promptly investigated and resolved one by one. After addressing them, the problem of insufficiently cold or hot air from the fan coil unit can be resolved.
Shanghai Airko Air Conditioning specializes in the R&D and production of fresh air ventilators, air handling units (AHUs), heat recovery air handling units, purification air conditioning units, and other products. We are committed to providing solutions for temperature, cleanliness, and humidity control.