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How to Run Fan Coil Unit to Avoid novel coronavirus Transmission COVID-19

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Update time : 2020-03-10 16:24:08
After reviewing various materials and literatures, I would like to say: while the transmission route of the new coronavirus aerosol has not yet been confirmed, we still need to guard against its potential transmission hidden danger.  

Different ventilation fan coil unit HVAC air conditioning system modes have different prevention and control methods:

According to literature reports, a large number of studies have confirmed that the central air conditioner's filter screen, ventilation openings and ventilation pipes are places for storing dirt and filth, which are suitable for the breeding and reproduction of microorganisms such as bacteria, mold and virus.  If the humidity in the pipeline is too high, mold will easily be generated indoors. If the pipeline is too dry, dust will be raised and inhalable particles in the indoor air will be increased.  Therefore, the prevention and control of epidemic situation in ventilation system must be paid attention to.

The ventilation system of the HVAC air conditioner mainly includes three modes, i.e. full air system, fan coil unit plus fresh air system or no fresh air system. Different suggestions are given for these three different modes:

1. All-air system
An all-air system is a system in which air completely bears the cooling load of a room.  The air treatment in this mode is basically concentrated in the air conditioning room, and the centralized air conditioning system generally belongs to this type of HVAC system.

Suggestion: In the unit that applies all-air system, the return air valve should be closed and the operation mode should be adjusted to a completely new air mode.

2. Fan coil unit air conditioning system
It consists of one or more fan coil units and a cold and heat source supply system.  Fan coil units are scattered in each room as the end of the air conditioning system, completing the air treatment work relatively independently.  The application of fan coil units in air conditioning engineering is mostly combined with separately treated fresh air system.

Suggestions: (1) When cooperating with the fresh air system, it is necessary to ensure that the fresh air is taken directly from the outside, and it is forbidden to take air from the machine room, corridor or ceiling.  At the same time, ensure the normal operation of the exhaust system and ventilation in deep and large areas.  The fresh air system is recommended to operate.

(2) When there is no fresh air system, it is recommended to open doors and windows to strengthen air circulation.

In addition, Baoding Yesncer also suggested that large shopping malls, office buildings and other places with high mobility should keep the fresh air and exhaust system working for another hour after work, so as to fully ventilate and ensure the cleanliness of the new elegant demeanour air outlets and the surrounding environment.
From this we can know that reasonable operation of fan coil unit can prevent the spread of novel coronavirus.  If you have any questions, please contact us YESNCER fan coil unit.
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