An article on understanding the characteristics and inspection and maintenance items of air conditioning in computer rooms

An article on understanding the characteristics and inspection and maintenance items of air conditioning in computer rooms

 

 

1、 Main advantages of computer room air conditioning

Computer room air conditioning, also known as precision air conditioning or constant temperature and humidity air conditioning, is an air conditioning system specifically designed to maintain temperature and humidity stability in data centers, computer rooms, and other critical environments. The main advantages of this type of air conditioner are as follows:

High precision control: The air conditioning system in the computer room can accurately control temperature and humidity, ensuring that the environment in the computer room is within the optimal working range of the equipment. This is crucial for sensitive electronic devices and can avoid equipment failures or performance degradation caused by environmental changes.

 

 

 

Year-round cooling: Due to the continuous generation of a large amount of heat by internal equipment in the computer room, the air conditioning in the computer room is usually designed in a year-round cooling mode to ensure effective heat dissipation even in winter.

High sensible heat ratio: The air conditioning in the computer room has a high sensible heat ratio, mainly aimed at cooling the sensible heat load, reducing unnecessary dehumidification operations, and is suitable for environments where the sensible heat load is dominant in the computer room.

High air volume and small enthalpy difference: By circulating high air volume, the temperature distribution in the computer room is maintained uniformly, and the potential risk of low exhaust temperature is reduced. At the same time, enhancing indoor air exchange is beneficial for eliminating local hotspots.

High energy efficiency ratio: The computer room air conditioning adopts high-efficiency industrial grade compressors, which have a higher

energy efficiency ratio than ordinary household or commercial comfort air conditioning, reducing operating costs and energy consumption.

2、 Inspection and maintenance items for air conditioning in computer rooms

Filter inspection items

Clean the filter pleats thoroughly;

Check the filter switch;

Whether the airflow is blocked;

Evaporator inspection items

Clean the dirt on the surface of the evaporator

 

 

 

Inspection items for far-infrared humidifiers

Check if the drainage channel is blocked;

Check the humidifier lamp tube;

Check if there is scaling at the edge of the sink;

Check if the humidifier water replenishment valve is leaking;

Check if the humidification current is normal;

Inspection items for tank humidifiers (humidifying tanks)

Is it aging

Inspection items for the fan section

Check for debris on the edge of the blade and remove it;

The tightness status (position) of the belt;

Bearing status;

Fan safety switch status;

Assembly of pulleys and motors;

Compressor and refrigerant quantity inspection items

Check the oil level;

Check the temperature of the compressor and nearby pipelines;

Check the working current of the compressor (as indicated on the nameplate);

Check if there is any leakage in the compressor;

Check if the capillary tube is touching the compressor;

 

 

 

Inspection items for refrigeration cycle

Check the refrigeration pipeline (welding points);

Check if there is any leakage (oil) in the muffler, sight glass, maintenance valve, solenoid valve, and expansion valve of the drying filter;

Check the temperature of the above devices and check if there is any water in the pipeline (see the mirror, it is normally green);

 

Inspection items for refrigeration cycle

Check the suction pressure;

Check the exhaust pressure;

Check the hot gas bypass valve;

Inspection items for air-cooled condensers

Whether the condenser coil is clean;

Check if the working current of the outdoor unit is normal;

Check whether the motor operates normally and is tightened;

Bearing status;

Whether the bracket of the refrigerant pipeline is loose;

 

 

Air flow inspection items

Check if the grid feeding port is blocked;

Check each airflow channel;

Return air, supply air, air ducts, floors;

Inspection items for water-cooled/ethylene glycol condenser

Check if the inside of the copper tube is clean;

Check if the water regulating valve is working;

Check the concentration of ethylene glycol solution;

Check for water/ethylene glycol leakage;

Electrical panel inspection items

Check each air circuit breaker;

Check the electrical connection lines;

Check the operating procedures;

 

 

 

 

 

 

 

 

 

 

 

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