Usually the pressure is low.
Solar water heaters use a single pipe that serves as both the water supply and the downflow pipe. When using hot water, it flows by gravity from the water in the water tank. If the height of the room from the solar host is low, the pressure should be low (for example, the floor is on the 6th floor and you live on the sixth floor). This is not a problem with the water heater, nor an installation problem. If the water outlet of the water heater is hot enough, you can lift and rotate the handle of the water/water supply multi-purpose valve to mix cold water and hot water and let it out. hot water at an appropriate temperature. It can solve the problem of low water pressure.
Generally, the ports reserved for solar energy are reserved for sensors, and the sensors are installed according to the needsns of users. Therefore, this reserved opening must be tightly plugged with a plug before the water heater leaves the factory or after the water heater is installed, and water leakage is not allowed. If the reserved port leaks, the plug may not be installed or the plug may push the rubber ring crooked, causing a leak.