Evaluation quick heating type Intelligent thermostatic water heater The energy efficiency grade has two performance indicators: hot water output rate and 24-hour inherent energy consumption coefficient.
Hot water output rate: the quick heating intelligent constant temperature water heater heats to the rated high temperature, and then discharges the hot water inside. When the tank temperature is 20 degrees lower than the high rated temperature, the ratio of the volume of hot water discharged to the rated volume of the water heater is Electric water heater Of hot water. The higher the hot water yield is, the higher the efficiency of the electric water heater is, and the more energy-saving it is.
Since all the fast heating intelligent constant temperature water heaters use vertical water tanks (i.e., placed vertically), they are superior to the traditional electric water heaters that use horizontal water tanks in terms of hot water output rate.
24 hour intrinsic energy consumption coefficient: refers to the ratio between the actual energy required to maintain the water temperature at the set temperature and the standard limited energy without using the water heater. The lower the ratio, the better the thermal insulation effect of the water heater. Generally ε express. Level 1 energy efficiency correspondence ε≤ 0.6, corresponding to level 2 energy efficiency ε≤ 0.7, Level 3 energy efficiency correspondence ε≤ 0.8, corresponding to level 4 energy efficiency ε≤ 0.9, corresponding to level 5 energy efficiency ε≤ 1.0。
This is often the reason why the energy efficiency level of the fast heating intelligent constant temperature water heater is higher than that of the traditional electric water heater. It can be seen from the above analysis that the 24-hour inherent energy consumption coefficient is an indicator reflecting the thermal insulation effect of the water heater. The better the thermal insulation effect, the lower the energy efficiency level (Level 1 is good). The fast heating electric water heater is generally designed to be light and thin, so the insulation effect is certainly not comparable to the traditional water storage electric water heater.
1. Unplug the socket and close the two corner valves.
2. Unscrew the hot water outlet nut and block the hot water outlet to prevent water from flowing out of the water heater. At the same time, unscrew the nut of the cold water outlet, connect the hose (sprinkler pipe is enough) to drain water until no water flows out of the cold water outlet. For a 50L water heater, drain water for about one hour.
3. Remove the hose connected to the cold water port, connect one end of the hose to the hot water port and the other end to the faucet, open the faucet to fill water for 1 minute, and plug the cold water port, let the cold water stay in the tank for a while, then open the cold water port to drain water, and repeat several times until the discharged water is clean.
4. Screw on the nuts of the cold water port and the hot water port, open the triangle valve, and turn on the hot water from the water heater faucet. When the water flows out, close it.
How to maintain the fast heating intelligent constant temperature water heater?
1. Regularly inspect at least once a year to carefully detect and eliminate performance and other potential hazards; When the fast heating intelligent constant temperature water heater is in normal use, the temperature controller and heater shall be replaced at the designated maintenance point every three years, and the water heater shall be replaced in time.
2. Clean the tank once every six months. The cleaning method is to first cut off the power supply, close the water inlet valve, then open the water outlet valve, turn the drain switch on the valve 90 degrees counterclockwise to naturally drain the water and sediment in the water heater, and then clean it with tap water. After cleaning, restore the drain switch to its original position, and pay attention to the full water before power on;
3. When not in use for a long time, turn off the power supply and drain the water stored in the tank; If the water output of the shower is reduced, the blocked sundries should be cleared in time to ensure the smooth outlet, which is helpful to extend the service life of the fast heating electric water heater. If you do not use the water heater for a long time, first unplug the power plug.
4. Never replace the parts on the water heater by yourself. Do not repair the fault without permission. Contact the designated maintenance unit in time.
