Why is refrigerant added in winter different from refrigerant added in summer

I don't know why it's annoying that someone keeps copying and copying. I can tell you a very detailed answer to your question, but it is too troublesome here, and there are two reasons for this: one is related to the operating temperature, the evaporation temperature and condensation temperature in winter are lower than in summer, which leads to the overall low pressure, according to the Clausius Clapeyron equation or some equations of state, its density will also decrease, and the total mass will decrease under the condition that the total volume of the system remains unchanged; Another aspect is the exchange of evaporator and condenser, because it is operated in the form of a heat pump in winter, and the size of the evaporator and the condenser are different, and the amount of liquid phase refrigeration accumulated inside them will also be different, which is also a reason.

Friends, the addition of refrigerant is mainly due to the difference in temperature, which will make the pressure different, and the addition must be different

Winter is different from summer, the temperature is different, and the pressure of the refrigerant is different at different temperatures...

Tools to prepare: air conditioner, refrigerant.

1. First connect the meter valve with the air conditioner and refrigerant tank.

2. Kongqingru blends electricity to turn on and open the valve of the refrigerant tank.

3. Open the valve of the two-way valve of the gauge valve.

4. At this time, the refrigerant is added, and the pressure of the observation table gradually rises.

5. When the gauge hand rises, it means that the refrigeration dose is appropriate, and the valve of the refrigerant tank and the gauge valve can be turned off. This completes the refrigerant refueling process.

Dangerous goods, it is best to find professionals to operate, otherwise, accidents.

When the refrigerant is charged, it comes out through the compressor and becomes a gas with high temperature and high pressure (the gas should absorb heat), and then passes through the condenser for heat release, and the high temperature is converted to normal temperature, also known as medium temperature, but it becomes a medium temperature and high pressure liquid, and then after the capillary is also called the throttle valve, it becomes a liquid with low temperature and low pressure (the liquid is mainly exothermic), and then becomes a gas with low temperature and low pressure through the evaporator, and then returns to the compressor, so that the cycle achieves the refrigeration effect. Its refrigeration system is mainly composed of compressor, condenser, throttle valve, The evaporator and the connecting pipeline between them (the pipeline is the copper pipe in the air conditioner) are composed of roads, heat pump air conditioner (that is, it can be refrigerated and heated), and it has one more inside (electromagnetic four-way reversing valve) to achieve refrigeration and heating, It is generally felt that the refrigeration effect of the air conditioner has declined, not as good as before, you can add a little bit appropriately, the air conditioner may need to be removed when moving, and the refrigerant should leak when collecting the refrigerant, and it will generally not leak, if necessary, you can add a little bit appropriately.

In winter, it is added the same as in summer, there is a valve near the compressor, when adding refrigerant, the vacuum of the valve pipe is extracted first, and then the valve is directly charged.

First pull out the four-way valve to open the heat and add it directly, add almost the pipe to connect the four-way valve to see that the downward line is not good, in addition, pay attention to the heating situation, do not add, otherwise the pipe will not bear.

Whether to charge the refrigerant or not depends on the refrigeration effect of the air conditioner, which is no different from usual.

First disassemble the inner case, find the temperature sensing head, wet the paper towel with warm water, wrap the paper towel to the temperature sensing head, and then you can start the machine to add refrigeration. Note: Just don't warm the water.

Hello! First of all, adjust the frequency conversion to a fixed frequency, Gree's inverter set the temperature of the refrigeration mode to 18 degrees, and quickly press the sleep button 4 times when the machine is turned on, and P1 appears on the display screen to enter the fixed frequency operation.

There are two solutions to fluoridation of the air conditioner in winter:

1. Turn on the air conditioner and adjust it to the refrigeration state, so that you can add fluorine, and you may need to manually heat the temperature sensor head of the indoor unit to start the refrigeration condition.

2. In the state of heating, you can unplug the four-way valve wiring of the external unit, so that the compressor of the air conditioner will run in a refrigerated state, and the refrigerant can be added!

Gree inverter uses 410A refrigerant, liquid filling, which is twice the pressure of ordinary refrigerant R22, and the heating can be satisfied!

Happy New Year! o(∩_o...

Yes, it's not difficult to do.

The hard ones won't do! First of all, your air conditioner must be a "double temperature machine" and it is not heated by electricity, its heating effect is not very good, you can consider adding refrigerant. As long as it is a double temperature machine (except for electric heating), its working principle is:

The refrigerant enters the evaporator tube, and one is in a liquid state, which is the refrigeration work;The other is that the 'refrigerant' enters the evaporator tube under high pressure, and the effect of the next work is heating.

When the air conditioner is heating, the pressure of the 'refrigerant' at the filling valve is higher than the pressure of the 'refrigerant' in the cylinder, and you can't add 'her' to the air conditioner working during heating! In other words, the liquid filling of the air conditioner must be carried out in the refrigeration mode of the air conditioner. To add "liquid" to the air conditioner when it heats up, you have to artificially change its operating mode (to cool it).

Artificially there are: 1. Pull out the wire of the steering valve (four-way valve); 2. Remove the "temperature sensing head" of the indoor unit and put it into the warm water cup (the water temperature is about 40°); 3. Use an electric fan to heat the temperature sensing head of the indoor unit!

Press the forced switch (emergency switch) for 5 seconds to enter the forced refrigeration for 20 minutes, during which you can add refrigerant like in summer, and the high-pressure valve of the small machine does not have a fluoride port.

In winter, turn on the heating first, and then use a screwdriver to unplug the wire of the four-way valve (beware of the electric shock) and turn it to a low-pressure state for refrigeration before adding refrigerant.

Because if you add it at high pressure, you can't add it, but it will return to the cylinder.

Just hold the temperature sensor of the indoor unit with your hand. It's simple. You can also open it to the heating, and then remove one of the wires of the solenoid valve.

You find someone to pinch the temperature sensor head of the indoor unit with your hand, and you can take a glass of warm water to soak the temperature sensor head in the case that no one helps you. The heating and cooling machine is simple, you can unplug the wire of the four-way valve and turn on the heating.

However, it is not easy to grasp the amount of refrigerant in winter, and the current and pressure should be reduced accordingly, and the pressure of the refrigerant tank is not enough if the weather is too cold, so it is not easy to add it.

It can be added in winter, provided that your air conditioner is a heating and cooling machine, because only its high-pressure pipe has a valve to add refrigerant.

When the refrigerant is charged, it comes out through the compressor and becomes a gas with high temperature and high pressure (the gas should absorb heat), and then passes through the condenser for heat release, and the high temperature is converted to normal temperature, also known as medium temperature, but it becomes a medium temperature and high pressure liquid, and then after the capillary is also called the throttle valve, it becomes a liquid with low temperature and low pressure (the liquid is mainly exothermic), and then becomes a gas with low temperature and low pressure through the evaporator, and then returns to the compressor, so that the cycle achieves the refrigeration effect. Its refrigeration system is mainly composed of compressor, condenser, throttle valve, The evaporator and the connecting pipeline between them (the pipeline is the copper pipe in the air conditioner) are composed of roads, heat pump air conditioner (that is, it can be refrigerated and heated), and it has one more inside (electromagnetic four-way reversing valve) to achieve refrigeration and heating, It is generally felt that the refrigeration effect of the air conditioner has declined, not as good as before, you can add a little bit appropriately, the air conditioner may need to be removed when moving, and the refrigerant should leak when collecting the refrigerant, and it will generally not leak, if necessary, you can add a little bit appropriately.