College】 【weak air source heat pump maintenance and frost analysis --- Power By 【China】 weak home network..

<br> First, let us look at heat pump performance will bring ice frost which adversely affected?. Comprehensive analysis, to the following 5 conditions: <BR> <BR> 1. Blocked channels between fins to increase the air flow .resistance; <BR> <BR> 2. Increase the heat resistance, heat capacity; <. BR> <BR> 3. frequent defrosting, defrost different, defrost air conditioning process is a process, not only can not the .system of hot water, but also the original hot water need to consume energy, discharge the cold water back to the red. to heat the water tank, causing water temperature to decline further; <BR> <BR> 4. evaporator temperature .drop, lower energy efficiency, heat pump operating performance deteriorated, until not work properly.. <BR> <BR> 5. The unit is not working directly caused economic losses to the customer until the generation of heat pump products, scared mood ., affect consumer choice.. <BR> <BR> Study heat pump frost, there are only two states normal and abnormal.. First, the normal frost, when the winter when the outdoor temperature is below 0, ÑÉ, heating and .running for a long time, the outdoor unit heat exchanger surface of the frosting evenly, this is a normal phenomenon.. The reason: heat exchanger temperature is lower than the ambient air temperature, dew point, the entire surface of the heat sink on the .heat exchanger will produce condensation water, when the ambient air temperature is below 0, ÑÉ, condensation water will condense into a thin cream.. Of course, severe frost will affect the heating effect of the machine.. Automatic defrost heat pump products have the .general features that ensure the normal operation of unit.. Second, the non-normal frost, which is the main cause operational failure heat pump, broadly speaking, which also includes three phenomena: <BR> <BR> 1. Outdoor ambient .temperature is greater than 0, ÑÉ, the boot soon, the entire exchange. heat sink on the surface of condensation water will condense into a thin cream, cream the more quickly the thicker end.. Thermal effect of poor indoor mechanism, and show the .phenomenon of frequent frost.. The fault is usually the outdoor heat exchanger surface fouling on the heat sink, outdoor fan system failure or outdoor heat exchanger into and out of air, thereby causing a block.. <BR> <BR> Solution .: Outdoor heat exchanger cleaning, inspection or exclusion into the fan system, the outlet of the barrier material.. <BR> <BR> 2. Outdoor ambient temperature is greater than 0, ÑÉ, the boot soon, the bottom outside the .room heat exchanger (heat exchanger inlet capillary exit at the beginning) very thick frost, no condensation of water most of the heat exchanger. with time delay frost, frost in the extension from the bottom; indoor fan is always running against the cold wind speed .; air conditioner frequently defrost.. The fault is usually lack of refrigerant system.. <BR> <BR> Solution: First check the system leak repair, add refrigerant.. <BR> <BR> 3. Outdoor ambient .temperature is greater than 0, ÑÉ, the boot soon.. Outside of the upper chamber heat exchanger (heat exchanger outlet and the return pipe) is very thick frost, and with time delay on the heat exchanger from top to bottom (with heat exchanger .inlet to the outlet direction) Results. cream in the extension; and the heating effect is poor; air conditioner frequently defrost.. The fault system is generally too much refrigerant.. Failure often occurs after the maintenance of refrigerant added.. <BR> .; <BR> Solution: put the refrigerant to normal operation.. <BR> <BR> Winter is coming, the user in the choice of air-source heat pump should be considered when comparing the strength of selection, excellent quality .of the brand.. <BR>..