Air source heat pump units of defrosting method

With development of the trend of environmental protection and energy saving, the use of air source heat pump is gradually increasing, because in case temperature, air source heat pump in use process to frost phenomenon, affecting the performance of air source heat pump, today the air source heat pump defrosting methods to share with you. 

1. Stop frost: air source heat pump heat exchanger surface frost layer forms, too thick frost layer can reduce heating efficiency of the unit and increase power consumption, unit in this case the runtime also particularly prone to failure. Stop frost is the most convenient forms of air source heat pump units frost simple a way.

2. Reverse cycle defrost: switch the four-way reversing valve, which changes the flow of refrigerant, so as to achieve the effect of evaporator and condenser role exchange, close the fan, through the refrigerant of heat and the effect of the frost. This method is the most common of all the way to frost, frost process faster, improve the efficiency of the air source heat pump units of frost.

3. The hot gas bypass defrosting: open the hot gas bypass valve, turn off the fan, compressor exhaust will arrive through the hot gas bypass valve of liquid receiver, finally into the air cooled heat exchanger of defrosting.This way of defrosting effect is obvious and can not only shorten the time of frost. 

Timely to frost, air source heat pump units can not only improve the heating efficiency of the unit, also can reduce the damage to the equipment, can effectively increases the service life of air source heat pump units. Select the correct defrosting method can not only reduce the frost time, improve the working performance of the unit.

Air source heat pump floor heating and radiator which is better

With the constant change of the weather is cold, people also particular concern for heating, mostly to install heating system at present, the most popular in the market is the air source heat pump heating floor heating and radiator heating, for above two hot heating ways which one is better, here is to analyze the advantages and disadvantages of them and so that everyone can have a full understanding.

Air source heat pump floor heating and radiator, by contrast, both the running principle of basic similar, is through the hot gas send out to realize the rise of temperature, finish heating, but still exist between different, installation of floor heating is in installation is needed before operation, the building is decorated after renovation is difficult when installation, quantity is big, time is longer, so after the installation is not recommended, and the radiator before decorate and decorate after all its installation will not cause any influence, less construction difficulty, installation time is short, convenient and simple. 

Air source heat pump installation, the method is relatively hidden, will not take up too much space, will not affect the beautiful house, and it has obvious advantage that the ordinary floor heating, heating faster when using, heat evenly, comfortable is extremely strong, energy saving effect is remarkable, and the radiator need to choose suitable location to install, will occupy a certain space, so that air source heat pump heating floor had a good choice. 

Air source heat pump floor heating is buried in the ground, is by raising the temperature of low temperature hot water, transfer heat from underground into the air, as a result, the heat from bottom upm confirms to the principle of keeping in good health, and the heat evenly inside the air, the temperature difference is small, comfortable and reliable. Radiator is only a fraction of the concentrated heat is to heat the air around first, and then achieve the purpose of heating by air convection heat transfer, this way of thermal comfort is relatively poor.

For now, the air source heat pump heating is a clean way of heating, with the continuous development of air source heat pump, remarkable achievements in the field of heating, and is used by more and more people, so will gradually become the first choice for heating.

Another advantage is use of air source heat pump running costs are relatively low, it is compared with other heating way, by contrast, it is also in favor of the heating way of the human body health.  

Air Source Heat Pump Heating Floor Maintenance Points

1. Whether you need a local warming, air source heat add antifreeze?
Air source heat pump for heating floor can add a certain amount of antifreeze, project traders can according to the size of floor heating and the corresponding percentage of antifreeze.
In order to reduce the cost of the operation of the air can heat pump floor heating can try this way: when away from home during the day, can be used in a low temperature heating, raise the temperature in a timely manner after go home, enjoy a comfortable warm home life.

2. Air source heat pump heating floor stopped in winter and summer?
A, The area below 0 degrees in winter, could freeze period, if a short period of time (3-5 days) was not at home, can be machine stop, but must do not power;Air source heat pump floor heating unit now has its own antifreeze protection function, the function of automatic stop to prevent frostbite.
The correct antifreezing measures should be:
a) Short time (within a week) no person in the home, can be set to the lowest temperature, the domestic heat pump will run at the bottom temperature.
b) Home empty for a long time, but will all the water in the air source heat pump floor heating system drain and clean.But note that, before the operation, please give full consideration to indoor and other lines, such as water pipe will never freeze.
B, Need not when in the summer, long time no one in the home or for a long time not to use and not freezing can shut down the unit;Disconnect the power, put the water system of water to dry. But for security reasons, in the case of not live for a long time, must be on the water system after cut off power supply.  

3. When air source heat pump heating floor clean screen pack what to drain?
Air source heat pump heating floor heating water drainage method: close cold water inlet valve and open the water valve, open the sanitary hot water faucet, heating water discharge.Contrarian recharging water can run, can be turned on.

4.  Air source heat pump floor heating temperature couldn't get on?
a, The heat radiator is not enough, the problem easily happened in the replacement of the radiator user home.Add radiator big to small, the heat coming from the radiator is not enough to compensate for the heat loss of the room.
b, Wet room did not work, because the wall is wet, the water cut of gasification and to absorb a large amount of heat, therefore, room temperature curing barn takes about a week's time.
c, Starting and stopping, room temperature is not in balance, namely to turn it off;And heat coming from the early also because between families turn heat is absorbed by the outside world, so always can not meet the requirements of the temperature.