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Maintenance of air ducts and ducted type air conditioner

Maintenance of air ducts and ducted type air conditioner

2022-04-14

Maintenance of air ducts and ducted type air conditioner


 

Installation and maintenance of composite air ducts:

1. Device

The installation method can be determined according to the actual situation on site, it can be hoisted in place as a whole, or the air duct can be placed on the bracket section by section, and then connected section by section. When carrying out the overall hoisting, it is necessary to pay attention to the connection of the air duct in the air first, and its length is 10 to 12 meters, which should not be too long.

Between the air duct and the protective casing, use flexible materials to block.

After the air duct system is all installed, the tightness test should be carried out to check whether there is any air leakage.

2. Scrap maintenance

(1) After the composite air duct is installed, its surface should be lubricated and clean, and there should be no debris. If it is installed outdoors, take precautions against rain and snow.

(2) If the air duct system needs to be suspended during the construction process, its exposure should be blocked to prevent debris from entering.

(3) The air duct cannot be used as a support or hanger, or as a springboard.

3. Safety and environmental protection measures

(1) The inspection should be stopped before construction, and if there is any problem, it should be dealt with in time.

(2) If you want to work at heights, you should fasten your safety belt and do not throw objects in the air.

(3) When the air duct is hoisted, it is strictly forbidden to stand directly below it. The trial lifting should be stopped first, and there is no problem before lifting.

(4) The job site should be equipped with safety protection installation and fire-fighting equipment to ensure safety.

 

Definition of ducted type air conditioner:

Ducted air conditioners are all types of air conditioners that are defined solely by the air supply form of the indoor unit, specifically referring to those air conditioners that need to send the air from the indoor unit of the air conditioner to different locations in the room through air ducts, which can be central air conditioners part of the central air conditioner.

The central air conditioner is one-to-many, that is, one host drives multiple indoor units. The duct unit is one for one, that is, one indoor unit drives one outdoor unit. Compared with the central air conditioner, the air duct machine is lower in cost, more convenient in maintenance, and also adopts a hidden installation, which has the effect of beautifying and decoration, and does not take up space. However, the time when the ducted machine is turned on is relatively long and it is easy to consume electricity, but the central air conditioner has done better in terms of energy saving, which is a level that the ducted machine air conditioner cannot achieve.

Regularly check the running status of compressors and fans, and find abnormal noises, such as metal collision sound, motor humming, casing vibration, etc., should be stopped immediately to check, find out the source of the sound, find out the cause and eliminate it. Regularly check the electrical operation status, such as power switches, contactors and various protection devices. And clean the circuit board to keep it in good operating condition.

 

Maintenance and repair of ducted type air conditioner:

Maintenance:

1. Regularly check the operating status of the compressor and fan, and find abnormal noises, such as metal collision, motor hum, casing vibration, etc., should be stopped immediately to check, find out the source of the sound, find out the cause and eliminate it.

2. Regularly check the electrical operation status, such as power switches, contactors and various protection devices. And clean the circuit board to keep it in good operating condition.

3. Regularly check the operating status of the air conditioning system, and check the suction and exhaust temperatures of the compressor by hand. A set of pressure gauges can be installed to detect high and low pressure conditions. Observe the refrigerant flow state in the sight glass to determine the refrigerant inventory of the system.

4. Regularly check whether there are oil stains at the welding points and interfaces of the connecting pipes of the refrigeration system. Leak detection should be carried out where there are oil stains.

Repair:

1. Cleaning the condenser fins of the unit can make the cooling effect of the unit good. The outdoor unit of the air conditioner is installed on the outdoor ground and roof. After a long time, the fins and copper pipes of the condenser will be covered with a layer of foreign matter and dust, which will cause poor heat dissipation of the unit and affect the cooling effect. In severe cases, it will also lead to high-voltage protection of the unit, stop the unit from working, damage the unit, and affect the normal use of the unit.

2. Check the wiring of the power supply and control circuit of the unit



           

           
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