Below you will find the standard diagram of an Individual Solar Water Heater  installation, enabling the production of Domestic Hot Water (DHW) with Dualsun SPRING hybrid solar panels and a Dualsun smart solar station.

The components of such an installation can be grouped as follows:

1- On the roof:

1. Dualsun panels (panels + fittings + piping + fixings + inverter)

2. Hydraulic piping

2- In the technical room:

1. Solar station (hydraulic transfer group + regulation)

2. Solar tank (hot water storage tank + electrical heating)

3. Fluid heat transfer fluid

Note: The connection to the house water network is not covered here.

Installing the sensors on the roof is similar to installing standard photovoltaic panels : 

• Provide all the material for fixing the roof panels.
  You can consult here installation systems compatible with the panelsDualsun.

• Check inverter compatibility.
  You can consult here inverters compatible with our Dualsun SPRING panels.

We recommend three options.

• Multi-layer tube (ensure that it can withstand temperatures up to 90°C)**

• Corrugated stainless steel (stainless steel bi-tube)

• Copper piping

Each of these options has advantages and disadvantages; the choice should be made based on the specifics of the site and the habits of the installation team.

Note: Depending on the choice of piping, you must therefore provide the appropriate tools and fittings: a striking die for stainless steel and a crimping pliers for multi-layer.

>To choose and size the piping: What is the recommended diameter of the pipes between Dualsun SPRING panels and the technical room?

Located near the solar tank, it ensures the circulation of the fluid and is made up of several elements:

It allows the fluid to circulate from the circulator to the solar panels and then to the hot water tank. It is made up of essential elements for hydraulic commissioning.

This is composed of:

1. Pre-assembled 3 bar safety valve

2. Manometer

3. Drain valve

4. Valve with integrated anti-thermosiphon valve

5. Filling valve

6. Wilo PARA pump (circulator) 

7. Flow meter

8. Valve with integrated anti-thermosiphon valve

9. Air vent

> More information :  Smart Solar Water Heater Datasheet (physical characteristics of the smart solar station) 

This controls the activation (and deactivation) of the circulator (pump) based on the temperature difference between the panels (glycol water) and the bottom of the tank (sanitary water), the household's consumption habits and the weather forecasts.

NOTE: It is possible to use other regulations on the market. They operate with a simple ON/OFF mode with only 2 temperature sensors (panel and bottom of tank), do not allow the optimization of solar production like our smart station.

To be inserted into the hybrid panel, the solar tank, and on the piping following the recommendations in the diagram:

Caution: it is necessary to firmly place the probe on the pipe using a metal collar or spiral and then insulate the assembly.

The smart water heater comes with an electrical box. It must be wired to the mains at the input and to the electrical resistance at the output.

The electrical diagram to be followed is as follows:

To go further:Dualsun smart solar station instructions.

It consists of a tank integrating an exchanger in its lower part and allows the storage of domestic hot water. It has a temperature sleeve  in the lower part to instal a first PT1000/FRP6 temperature probe and a sleeve at the top to insert a second-probe.
Our Dualsun smart solar water heater integrates all these components

It is integrated into our Dualsun smart solar water heater  (2kW)

It is important to ensure the compatibility of the solar tank with our Dualsun SPRING hybrid panels if you choose a tank other than the one in our range:   Which solar hot water tanks are compatible with Dualsun SPRING panels?

A mixture of water and glycol (solar antifreeze, at a certain percentage) must be used. It is this solar fluid that will circulate in the panels (see photo of a premixed container below).

> To find out more:What heat transfer fluid should be used in a pressurized system with SPRING panels?

Hydraulic commissioning corresponds to the introduction of this fluid into the installation. This allows the calories recovered by the solar panels to be transported and discharged through the exchanger at the bottom of the tank to produce domestic hot water.

This commissioning must be carried out using a filling station (or commissioning pump), an example of which is shown below.

>To go further:

• Installation, use, maintenance instructions - Pressurized systemsDualsun

• What are the different hydraulic panel layouts?Dualsunin residential?