News Center

defrosting methods for fan coil unit

Views : 2188
Author : Sherry
Update time : 2019-09-30 16:55:59
There are several defrosting methods for fan coil unit modules:
1. Electric heating defrosting
2. Natural Defrosting
3. Hot gas bypass defrosting

Electric heating defrosting is the most commonly used defrosting method for fan coil unit modules. only an electric heater needs to be installed in the air cooler, and then the electric heaters are connected together through cables. the defrosting system can be started manually according to actual requirements, and can be automatically stopped when the preset program is reached. it is a very simple and easy defrosting method, but it may consume more because electric defrosting is used.

Electric heating defrosting process:
Start defrosting-compressor stops running-condensing fan stops running-electric heating element starts power-defrosting starts-reaching preset time-defrosting ends-refrigeration system restarts fan coil module machine to naturally defrost by adding a water collecting tank at the top of the evaporator, opening a round hole at the bottom of the tank, tap water enters the round hole of the copper pipe after entering the water collecting tank through the water collecting tank, flows through the evaporator fins evenly from top to bottom, and turns frost into water to be taken away.

The hot gas bypass defrosting method belongs to a relatively complicated defrosting method, which can be used for larger fan coil module machines, because this method is more suitable for large systems with more than 3 evaporators, and mainly uses high-pressure gas at the high-pressure end of the refrigeration system to finish defrosting, which can save energy relatively.

 
Related News
Read More >>
Water source rooftop chiller unit part in HAVC Water source rooftop chiller unit part in HAVC
Mar .22.2024
The fan coil unit is a common HVAC system terminal device. It can be used independently or in conjunction with other equipment to provide more efficient cooling and heating services. One such example is the water-source chiller.
The quietness and efficiency of Guqin series Horizontal Ultra-Thin Concealed fan coil units The quietness and efficiency of Guqin series Horizontal Ultra-Thin Concealed fan coil units
Mar .22.2024
The Guqin Series Vertical and Horizontal Ultra-Thin Concealed Fan Coil Unit is a HVAC terminal component product produced by Yesncer, named after the world’s intangible cultural heritage – the Guqin. Not only does it have an exquisite appearance, but its
Ultra-low temperature air source heat pump principle and core technology Ultra-low temperature air source heat pump principle and core technology
Dec .27.2023
The principle of ultra-low temperature heat pump system is as follows.
Fan Coil Unit Selection And Product Advantages Fan Coil Unit Selection And Product Advantages
Dec .07.2023
Fan Coil Unit Selection And Product Advantages