How to clean air source heat pump water heater

Air to Water Heat Pump water heater cleaning will help keep the normal work of the air source heat pump water heater, prolong the service life of heater, below is the air energy heat pump water heater cleaning steps of decomposition, non-professional workers do not imitate.

Tools/raw materialGloves, masks, air source heat pump water heater descaling cleaning agent
Pliers, screwdriver

Methods/procedures

1. Under normal circumstances, the service life of air source heat pump water heater is very long, general life can take up to 15 years, air source water heater repair need professional personnel, so to maintain good air source water heater, good clean air source water heater is the key of the extend the service life of air source water heater.
   Air source heat pump water heater cleaning step down:
   First of all, on the advice of the experts the basic air source water heater is in use after a year you need to complete clean again, the actual situation according to the local water.
2.  Before using, manually shut off the power, close the inlet valve and open the water valve, open the relief valve discharge valve counterclockwise 90 degrees, the air source water heater tank in the inland waters or play on their own emissions to moderate.
3. Wear gloves and protective cover, the storage tank to store the right amount of water, and keep the cycle, and turn off the water side valve, drain valve closed.
4. The air source heat pump water heater cleaner YT – 52-1 in accordance with the proportion of 1:5-10 add detergent into the water tank, circulating evenly.
5. Open air source heat pump cycle for 2-3 hours, check the descaling solution PH value (or Ca2 + concentration) when no longer PH change or Ca2 + concentration rises, then add the original add one over ten of the dose, PH or Ca2 + concentration under test, continue to cleaning for 30 minutes, to measure the PH increase or Ca2 + concentration, not “need to continue to scale, if not change the scale has been divided.
6. After completion of descaling, adding suitable amount of acid neutralizer YT- 51-8, and waste liquid of PH adjustment to 7-8, open the drain valve drainage of cleaning liquid.
7. Close the drain valve,open the switch of water supply, into the right amount water, circulating cleaning after half an hour, then emissions, repeat the above process 2-3 times, is clean.

Air source heat pump water heater the five problems and solutions of common

The word "air source heat pump" search volume increasing, product also gradually to the rural market, more users of air source heat pump the appearance and function of agreed, but the air source heat pump water heater is in use process, will meet some problems, sums up today the five problems of air source heat pump water heater is common and after detailed analysis of the corresponding solutions.

A.  Air source heat pump water heater compressor oil loss?
Analysis of reasons: 1. The suction pressure is too low    2. Refrigerant circuit block      3. Thermal expansion valve opening is too little
Solution: 1. Improve the evaporator side load, have without block   2. Check the suction pipe valve leakage, add refrigerant   3. Clean or replace the thermal expansion valve

B. The compressor noise big?
Analysis of the reasons: 1. Low oil pressure   2. Bad or broken muffler, the exhaust valve  3. Machine inside the pipeline, valve parts loose fastening parts, vibration   4. Thermal expansion valve opening is too large
Solution: 1. The oil change, muffler, the exhaust valve   2. Check the fastening of the compressor, pipe, valve parts   3. Adjust the thermal expansion valve opening degree

C. Compressor non-stop?
The cause of the problem: 1. The sensing probe resistance is wrong or sensing line break fall 2. Thermostat positioning of failure or mistake
Solution: 1. Change the sensing probe (2) to repair or replace the thermostat was laid

D. Functioning but heating capacity?
Analysis of reasons: 1. The compressor exhaust valve, the thermal expansion valve damage 2. Lack of refrigerant system or the system has no non-condensable gas such as air          3. Defrost controller, time relay failure  4. Within the electromagnetic directional valve leak 5. Hydrophilic aluminium were choked up with dirt
Solution: 1. The replacement or repair or to adjust the opening degree of  2. After the leak detection supplementary refrigerant or replace desiccant, refrigerant, electromagnetic directional valve   3. And tap water scrub with the brush

E. Frost on the surface area of the compressor?
Analysis of reasons: 1. The thermal expansion valve failure or open too big                        2. Thermodynamic expansion valve thermal bag off       3. Thermal expansion valve  core stuck or improper temperature set       4. Lack of refrigerant filling
Solution: 1. The adjustment, cleaning, replacement of the thermal expansion valve  2. To bind thermal package  3. Readjust  4. Leak detection, leakproof, filling refrigerant

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.