Solar water heater SWS (Pressure, heat pipe) 150–300 liters
A pressurized solar collector (solar water heater) is a device for heating hot water with a pressurized water tank. On sunny days, the water can be heated to boiling point.
WITH ELECTRONIC CONTROLLER AND 1500 W ELECTRIC HEATER
"Heat pipe" technology. The operation of the device is based on the technology of vacuum flasks with heat-pipes.
Stainless steel product. The inner water tank is made of food-grade stainless steel SUS304-2B, the exterior and frame of the device are made of stainless steel SUS201.
Volume. You can choose the size of the device, depending on the required consumption: 150 liters, 200 liters or 300 liters.
Easy to use. Suitable for installation both on the ground and on a horizontal or sloping roof. The water pressure is the same as the water pressure.
Management. The set includes an electronic controller and a 1500W electric heater designed to protect against water freezing.
Note. Depending on the selected modification, the size (number of flasks) and color of the device may differ from the device shown in the picture.
Pressure solar collector SWS-CPS
(pressure solar water heater)
PRINCIPLE OF OPERATION
The surface of the vacuum glass flasks absorbs more than 93% of the energy contained in the sun's rays. Solar energy is converted into heat, and the heat is turned inside a vacuum glass flask with the help of a vacuum.
The energy turned on in the vacuum flasks is concentrated in copper heat pipes inside the flasks. The liquid inside the copper heat pipes heats up to 200 °C and rises in the form of steam to the head of the heat pipe condenser, which efficiently transfers the heat to the water tank above the device in the form of indirect contact (through the copper pocket). The cooled vapor turns to liquid and returns to the bottom of the heat pipe to start the cycle again. If there is enough sunlight, the water is heated to boiling point.
The water tank of the pressure solar collector has good thermal insulation, so the stored heat can be stored for up to 72 hours. If it is cloudy for a while, the sun is scarce, you can use the reserve of warm water even for several days in a row.
1. Cold water.
2. Hot water.
3. Vacuum glass flask.
4. Copper heat pipe that can heat up to 200 °C
5. Insulation layer of the water tank, which retains heat for up to 72 hours.
The cold water is connected directly to the water tank of the heater, and its filling does not need to be controlled separately. The pressure solar collector is easy to use because the pressure in the solar collector's water tank is created by the pressure of the water supply (the cold water from the water supply pushes the hot water out of the solar collector's water tank). Therefore, the running hot water has the same pressure as the water supply system.
The hot water from the solar water heater can be used directly or connected to a gas water heater or an electric boiler.
The set of the pressure solar collector includes an electronic controller and a 1500 W electric heater, which provides protection against freezing in winter and, if necessary, allows you to additionally heat water, as well as use the collector as an electric boiler. For example, if the sun warms the water to 35 °C in early spring or late autumn, it can be additionally heated to the desired 40 °C or more. With the help of an electronic controller, it is convenient to control the water temperature in real time.
HOW TO CHOOSE THE SIZE OF THE COLLECTOR?
We recommend choosing the size of the solar collector according to your individual hot water consumption. However, it is always advisable to choose larger device, so you have hot water reservations for cases when all the hot water is used up in the evening, or the sky is very cloudy for several days and the water does not have time to warm up. If you choose a larger device, you will be able to use the hot water reserve accumulated the previous day.
* The indicated number of family members is indicative only
INSTALLATION
The pressure solar collector can be installed both on the ground and on the roof (horizontal or inclined). It can also be mounted on a vertical surface (wall) using an additional frame. The height at which the device is installed does not affect its operation.
Possible installation options on the ground / horizontal and sloping roof.
CONNECTION TO WATER SUPPLY
A pressure solar collector with a built-in water tank can be connected to the water supply system in different ways, adapting to your needs and the characteristics of the house or water supply system.
Installing and connecting this device to the water line is easier than a pressureless heater, because the water pressure in the tank is the same as in the water pipe system - the water line is connected directly to the water tank of the heater (without any additional tanks or electric valves).
Connecting directly to the faucet
The hot water that comes out of the solar water heater can be used by adding it directly to the faucet.
1. Cold water.
2. Hot water.
Connection through with an electric or gas heater
The hot water that comes out of the solar water heater can be added directly to the gas water heater or electric boiler - so your gas water heater or electric boiler will work with a lower load and consume less energy, because it will heat water already heated by the sun.
1. Cold water.
2. Hot water.
3. Electric boiler or gas water heater.
USE IN WINTER
The pressure solar collector also works in the cold season of the year, but the amount of absorbed solar energy is significantly less. In winter, solar energy is usually enough to keep the system warm and prevent the system from freezing. The device can be operated in winter only if it is equipped with an electronic controller with a built-in electric heater and the device is permanently connected to the mains. If the water temperature drops to the critical limit, the electric heater in the device additionally heats the water and prevents freezing. This is relevant when the outside temperature is very low for a long time, when it is cloudy or the vacuum flasks of the solar collector are covered with snow and do not receive direct sunlight. It is very important to insulate water pipes well.
Note. If the collector does not have a built-in electric heater or it is not possible to ensure a continuous supply of electricity, the system must be disconnected and the water drained in winter.
