What is the best air filter for a central air conditioning system? How should I change the central air conditioner main unit filter?

What to use for central air conditioning systemAir FilterGood? How should I change the filter on my central air conditioning unit?

Central air conditioners are not only for public places, but many people have them installed in their homes as well. Central air conditioners not only look good, but also save space in the house. It also cools and heats well, making the experience more comfortable. Over the years, central air conditioning systemsAir FilterPoor selection leads to a lot of problems with the air conditioning system:

1、Ventilation ducts accumulate dust and are blocked.

2、Fan impeller fouling, wind volume reduction

3. Low efficiency of heat exchange components

4, temperature and humidity and other measurement and control element failure

5. Microbial reproduction and bacterial multiplication in the pipeline ash accumulation

6. Failure of the total heat exchange unit

Many central air conditioners, after one or two years of use performance declined significantly, open the air conditioner, the crux of the matter at a glance. The phenomenon of dust accumulation The root cause of the failure to replace and clean up the filter in a timely manner, the filter efficiency is low.

In developed countries, air filters with efficiency specification F5 are used (colorimetric method 45%, European specification EU5, domestic specification "medium efficiency").

Central air-conditioning system needs to be cleaned every 5-8 years; the use of F7 efficiency filter (colorimetric method 80%, European specifications EU7, domestic specifications for the "medium efficiency") of the central air-conditioning system after more than 30 years without cleaning. Many domestic central air-conditioning system, the filter is only "coarse", or no filter at all, after a few years, the system is not good to see.

Setting up a high-efficiency filter will increase some costs, but compared with the losses caused by the use of poor filters, that cost is nothing. Due to the accumulation of dust caused by air conditioning performance degradation caused by the loss is far greater than the cost of using good filters; due to the accumulation of dust to shorten the life of the air conditioner caused by the loss is far greater than the cost of using good filters; cleaning costs will be higher than the use of good filters cost.

In developed countries, the cost of cleaning an air conditioning system is 20 times the difference between a good and a bad air filter. In China, there are also some contracted high-grade building air-conditioning cleaning business companies, owners will find cleaning the central air conditioning is with how expensive. Good air conditioning system, filter efficiency specifications should be selected F5-F7.

Extended Reading:

Central air conditioning host maintenance is appropriate to directly affect the use of its effect and life, central air conditioning host filter for the host of important parts, then how to replace the central air conditioning host filter?

Central air conditioner main unit filter replacement method:

1. Close the oil filter first, and the gate valves at both ends. Use the air hose to exhaust the gas into the barrel. At first do not hit so open exhaust valve, slowly increase.

2, with a hand to touch the oil filter two gate valve outside the oil pipe, both ends of the temperature should be almost the same, are higher than the oil filter temperature, indicating that the valve is closed intact. Central air conditioning renovation ice storage cold system, is in the power load is lower in the electricity trough period, the use of preferential tariffs, the use of electric refrigeration air conditioning machine ice, and stored in the ice storage equipment; in the daytime of the power load is high, to avoid the peak tariffs, stop or intermittent operation of the electric refrigeration air conditioning machine, the ice storage equipment to store the release of the cold to meet the need of air conditioning loads of the building.

3、After discharging the gas, use the special tool to dismantle, dismantle to almost off, hand remote filter to check whether there is a complete decompression.

4. Note that when removing the filter, the hand should not be placed on the bottom, but on both sides correctly. Take out the original filter cartridge, clean the filter shell and replace it with a new filter cartridge.

5. Check the sealing ring and install the filter. Small open the separator end of this a gate valve, exhaust about 20 seconds, both ends of the gate valve hit in the switch, check the filter tightness.