Villa heating and cooling options have new tactics

Live a spacious villa is the dream of many people’s lives. However, to really enjoy life in the villa, not only to worry about making money, have to choose a lot of thought in the selection of equipment.

Villa with ordinary residential compared to the structure and construction area has obvious differences, the villa as few as a few hundred square meters, a thousand square meters, so that, whether it is cooling or heating, difficulty and ordinary residential phase Bigger than a lot. In the face of such a situation, the villagers are how to solve it? The answer is simple, use air source heat pump.

Air source heat pump is favored for many reasons, but the most important thing is energy saving. Air source heat pump by the evaporator, compressor, heat exchanger and other components, rely on “anti-carnot principle” heating. First through the evaporator to absorb a lot of free air heat, and then pass the heat to the compressor, the compressor will convert these heat into high-grade heat, the final output heating to the room. This way of transporting heat from the air, so that the air source heat pump consumes 1 kWh, you can get 4kw of heat, heating efficiency of 400%, than the traditional electric heating, coal boiler to save a lot of energy.

In summer, the air source heat pump can be switched to air conditioning mode. In air conditioning mode, the air source heat pump can produce cold water, with the fan coil discharge a lot of cold, in order to reduce the indoor temperature. Data show that even if the external temperature up to 30 ℃, air-source heat pump to open the cooling mode, it can also reduce the room temperature to about 20 ℃, the cooling effect is not less than the air conditioning.

Whether it is cooling or heating, air-source heat pumps are known for their comfort. It “water cycle” approach, the air-conditioning, heating delivered to the interior, this mechanism to make the wind more gentle, but also reduces the evaporation of water on the human skin surface, there will be no obvious dry mouth, but will not induce cough , cold and other symptoms, bring is truly comfortable heating, cooling experience.

Not only comfortable and energy-saving, air-source heat pump environmental effects are amazing. Because the air source heat pump uses the heat in the air to heat, the heat pump relies on the electric energy to drive. The heat pump equipment does not consume any coal and natural gas and naturally does not produce harmful gases, which can create a good environment for the villa . Air-source heat pump heating and cooling advantages so much, no wonder the choice of many villa tenants.

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.

Daily Use and Maintenance of Household Water Circulation Air Source Water Heater

Air source water heater( heat pump water heater ) is a high degree of automation equipment, machine status on a regular basis to check when using, if can the machine for long-term and effective maintenance , reliable operation of the machine and to increase the service life will be unexpected.

1, The rating of the product to produce hot water temperature of 60 ℃, in order to prolong its service life, please use within the scope of the factory Settings, make use of will be out of place in the free warranty.The best energy saving water temperature in 46 to 52 ℃.

2, Closed to install water filter should be cleaned regularly, ensure the water quality in the system is clean, in order to avoid the damage caused by filter blocking machine.

3,  Inside the machine all the safety device are set before they go out, do not adjust.

4, Check whether the power of the machines and electrical system wiring and firm, whether there is abnormal action electrical components, if any should be timely maintenance and replacement.

5, It is strictly prohibited by plugging (drawing) plug to switch machine directly, please check the leakage plug leakage protection function.

6, Check the safety valve of the system of filling water, water tank and exhaust system work is normal, so as not to affect the machine's heat and the reliability of the machine running.

7, Check whether water pipe joint leakage.

8, The machine should be kept clean and dry, well ventilated.Regular cleaning air side heat exchanger (3-6 months), to maintain good heat transfer effect.Must cut off power supply before cleaning, clean surface stains, please take a few neutral detergent scrub gently with wet cloth and, don't use gasoline or other solvents.Finish with a dry cloth to wipe dry, keep dry and water heater.
9, Check the various parts of the host work, to check whether there is oil pipe machine and tapping, ensure the machine refrigerant leakage.

 10, Machines do not pile up sundry, lest jam into the outlet, around the machine should be kept clean and dry, well ventilated.

11, If the downtime is longer, should put off the machine line in the water, and cut off power supply, set of good cover.Run time again, before starting on the system to conduct a comprehensive inspection.

12, If the water heater is started reproduce any abnormal noise, please power off immediately, must be checked after troubleshooting can start again.

Air Source Heat Pump Water Heater Low Temperature Solution

Set some of the heat pump water heater temperature reach or slow temperature rise, engineering unit operation for more than a lot of design time, still can not meet the set temperature, barely used, the measured temperature around 40 or more low, system circulating pump continuously circulation, temperature is not higher.

Cause analysis: the air source heat pump hot water unit of the water temperature generally set at 50 ℃ ~ 60 ℃, occasionally above 60 ℃ under 65 ℃ also fall within the scope allowed, only under the condition of operation may affect the service life of the unit.The rise of temperature must get heat from the outside world.Couldn't get on the water temperature of water in the two aspects, on the one hand, heat loss is greater or equal to the inflow of heat, when the two equal temperature constant.

Heat loss also includes two possibilities, one is the thermal insulation layer temperature difference is too big, not enough quality and nature heat loss is serious, especially the untight seal tank hole bad insulation or hidden insulation parts not ready, peripheral over heat preservation and the heat loss of the discontinuous will increase body heat preservation;Another kind of heat loss for hot water flow of cold water filling into at the same time.The heat loss is often appeared in the design scheme of water tank, some customer not intermittent water requirements for 24 hours, such as traffic large hotels, barber's city, such as customers, cold water rushed into the water tank, hot water use at any time.Once the weather suddenly cold, reduce unit from heat from the air exponentially, while customers to increase the amount of hot water, then keep the heat in the tank is not, is characterized by water temperature rise is difficult, or even cold water phenomenon.

On the other hand may be a host refrigerant and heat capacity difference, lead to valid for a single cycle with less heat exchange. One possibility is the refrigerant selection is not appropriate, air source heat pump hot water unit using refrigerant different from traditional air conditioning refrigerant, with specific physical and chemical stability, specific and is one of the core of the heat pump technology. Part of the heat pump products use the refrigerant on the market do not have this feature, in the case of ambient temperature to reduce appear weak phenomenon it is not surprising.

The Main Technical Points of the Air Source Heat Pump Compressor

In the actual system design, also want to follow the rules of the heat pump running, give full play to the function of the special heat pump compressor.Specific attention should be paid to the following aspects:

1, throttling device to ensure the wide range
Both fission and the integral heat pump water heater in the open air, the evaporation temperature are very wide.In order to effectively throttling in wide range, it is suggested that do not use single capillary, but USES the expansion valve or more groups of capillary, in response to the change of environmental temperature, ensure that under all operating conditions have a suction superheat.At the same time also to avoid the liquid directly into the compressor, especially in the winter.

2, the observation liquid strike, dip phenomenon, to assess risk

For static heating heat storage type heat pump water heater, the refrigerant migration is bypassing the problem: after the compressor stop working, in the condenser at a high temperature environment, compressor/evaporator cooling, temperature difference in cold media gradually migrate to the evaporator and the compressor.

Cold media "gather", compressor starts again, gathered at the refrigerant in the evaporator is likely to go into the compressor.That is to say, heat pump water heater in liquid impact degree is more serious than air conditioning.This phenomenon has been verified through many experiments.It is also a special heat pump compressor adopts accumulator design one of the reasons why the super capacity arc (ease liquid impact, improve suction superheat).Therefore, in the development of heat pump water heater, need to see liquid strike, dip phenomenon, to assess risk.

3. Pay attention to the bottom of the compressor from the problem of heat
It is easy to be ignored during system design, but it is extremely important.The so-called heat at the bottom of the compressor, it is defined as: temperature, condensation temperature at the bottom of the compressor.If the value is zero or less than zero, compressor ontology has become a "condenser" at this time, cold media will slowly in compressed casing in condensed liquid and deposited at the bottom of the compressor, regarded as "lubricating oil" to the compressor pump body each sliding surface.Liquid refrigerant is no lubrication function, as a result, the compressor pump body friction abrasion dual comprehensive, happen " seizuring locked-rotor" is just a matter of time.

Compressor running in winter, in the event of "breathe in liquid", into the liquid refrigerant compressor internal quickly reduces the compressor body temperature, and low environmental temperature, leading to the bottom of the compressor temperature will drop too low.And heat pump water heater due to the need for making high temperature of hot water, the condensation temperature is higher, it is easy to occur at the bottom of the compressor temperature is lower than the phenomenon of condensation temperature.System experiments showed that when have a suction liquid occurs, in preparing 55 degrees, the hot water temperature at about 5 degrees occurs at the bottom of the superheat phenomena of less than zero, the more serious the environmental temperature is lower.

4.  condensation side heat transfer set aside safety margin
No matter what type of heat pump water heater, after running for a long time, the water side of the heat transfer (condensing side) effect will decrease (scale, loose, aging, etc.), heat transfer temperature difference will increase.So did you consider in the design the condensation side heat transfer temperature difference might happen in the future how to change, to set aside a safe margin, to ensure the safety of the compressor to run for a long time in scope.

Air Source Heat Pump (Heating Floor ) Matters Needing Attention

when you use air source heat pump,some questions you should attention.

 1. High temperature can not directly on the ground, such as using electric stove, coal stove on the ground. Because of the ground temperature will damage the pipe under the ground.

 

2. Unable to drilling, nailing on the ground, so as not to break through the ground under the pipeline does need to drilling, please contact the installer or contrast of floor heating floor heating tube distribution diagram, confirm will not damage the floor heating pipe, so the damage caused by yourself.
 

3. The fixed garnish is not installed on the ground as far as possible or put the furniture that has no legs, lest affect ground heat dissipation, usually need to more than 125 px furniture floor above the ground.
 

4. Do not placed directly on the ground during the heating of water glass and porcelain, in order to avoid uneven heating lead to rupture.

 
 

5. On the ground may not be placed above 2 t / ㎡ items, in order to prevent the deformation of the ground rupture, really need reinforcement measures should be taken to (enlarge the contact area, to reduce the pressure).
 

6. 0 ℃ in winter, pays attention to the following antifreeze, temporary unused area of the water system is completely shut down, if you want to close the need to set aside the small opening to prevent freezing.
 

7. In the heating period filled with water service (conditional word reference implementation, because involves water quality problems, within a year may require multiple filling water, waterproof).