Air to water heater

Air can have a direct bearing on the eer and temperature is, if the heating temperature of the same water, energy efficiency is proportional to the temperature, temperature efficiency is higher and higher, the lower the temperature the lower the efficiency is also, at the same time, filled volume of the refrigerant, suction, exhaust temperature is the main reason affecting the energy efficiency directly. 1, what is the dry bulb temperature and wet bulb temperature? Dry bulb temperature: from the sun direct illuminate in the air dry bulb thermometer read by numerical value. With the ordinary thermometer measured normal temperature of moist air. ( Commonly known as the temperature) Wet bulb temperature: in the air and not by the sun direct illuminate the wet bulb temperature table reads the values. Mercury bulb thermometer wrap aqueous cotton core, and a certain velocity of air blowing cotton core, the temperature on the thermometer. Dry bulb temperature is higher than the wet bulb temperature. 2, the air can have noise is going on? Can air noise is from the device itself system of compressor, blower, sheet metal and the vibration caused by the process pipe. National standards of air to the requirements of low noise: commercial machine 65 decibels, console 55 decibels. Performance can hear in 2 meters away from the compressor sound good air and no noise, no vibration, and can work on the machine erect COINS, and COINS. 3, air energy efficiency and about? Air can have a direct bearing on the eer and temperature is, if the heating temperature of the same water, energy efficiency is proportional to the temperature, temperature efficiency is higher and higher, the lower the temperature the lower the efficiency is also, at the same time, filled volume of the refrigerant, suction, exhaust temperature is the main reason affecting the energy efficiency directly. 4, can exhaust air is not clean, boot after 1 hour outage, whether can exhaust again? Can't. At this time in the system to be mixed gas, the process is called air blocking, deflated useless, only by pumping air into vacuum state, to add liquid, when charging, please pay attention not to air, dust, moisture to enter the system, otherwise the system will produce air blocking, dirty plugging, ice plug phenomenon, in the long run will compressor, 5, and what kind of air can be used in the north? Generally speaking, when the temperature 7 ℃ below, compressor suction heat is small, is reflect not to come out of any of the unit, compressor easy fever, cannot fully evaporation refrigerant, liquid back to the compressor, engine oil is thinning, lubrication, affected if winter air heat pump water heater is in use, the compressor with oil for a long time too much, then the probability of bad compressor is high, it is also a cause of compressor. In temperature 7 ℃ above using heat pump water heater is no problem, but not a under temperature 7 ℃, so must use low temperature type, and low temperature type from the refrigerant selection, system configuration of the unit, etc to increase the cost, so the cost is too high, and when the temperature - 15 ℃, the condensing temperature suction is too small, and the exhaust temperature is too high, sometimes exhaust temperature can reach 100 # 110 ℃, of course, these can be controlled by cooling the exhaust temperature, but the unit efficiency is very low, even less than 1, COP value of unit work is work, but no effect, the failure rate will be high, in the temperature - 10 ℃, the operation of the compressor condensing temperature up to more than 60 ℃ degrees, 45 ℃ hot water should be able to produce, and with lower temperature, condensation temperature of the compressor is subjected to will continue to decline, at the time of low temperature, water temperature requirement and higher than usual, Summer cold water bath is ok) Winter to produce 45 ℃ hot water are not enough, 1. The human body heat high requirements. 2. Temperature is low, around the bathroom need fill hot, 3. Temperature convection heat faster. Plus compressor suction on the condensation temperature falling, the machine is more easy to bad, so the technology to reach this level, only the electricity auxiliary heating. This is why the air can water heater can be divided into normal and low temperature type, and USES the real reason for electric auxiliary heating. So to use in the Yellow River basin can air must follow the basic principle of quality first, otherwise your ruin. 6, can often appear high pressure air failure is how to return a responsibility? Air can fault main reason for the high pressure in the refrigerant filling quantity and intercepting is too large or too much spent exhaust temperature is low, high voltage side caused by the steam big row. Air can often appear low pressure failure what is going on the air to the low voltage main fault reasons in the refrigerant filling quantity shortage and the closure is too small or exhaust temperature is too high, the low voltage side in the state of gas liquid two phase fluid caused by the deficiency. 7, air can why evaporator frosting? Evaporator frosting is a normal phenomenon in the air can work engineering, air can heat pump water heater production in winter frost is inevitable, we will find that when using air conditioning machine frost, frost, and the indoor machine mainly by electric auxiliary heating indoor temperature. Same heat pump water heater frost to defrost, frost. Heat exchanger design configuration of the system, and can delay the frost, reduce the frosted effect the performance of the air can heat pump water heater, can make the unit frost slowly, after the frost effect on unit performance is slower.