NOTE
Frost risk areas:
If possible, keep all the elements located under the demarcation line in the previous figure in
the technical room
The DualSun swimming pool heating kit is made up of the elements marked (3) to (11) in the diagram above.
This kit allows the connection of DualSun SPRING solar panels in bypass on the swimming pool filtration cir-
cuit, without additional pump, by means of a BY-PASS system by motorized 3-way valve.
The motorized 3-way valve is controlled by an electronic regulator. The assembly takes care of the direction of
the flow according to the temperature differential between the pool water and the solar panels, and thus optimi-
zes the installation.
When there is sufficient sunlight, part of the filtration flow of the swimming pool water is diverted to the solar
panels in order to recover the calories and return them to the pool.
Solar heating will be connected after filtration.
The other equipment, such as water treatment or auxiliary heating, will be placed after the solar heating.
This system allows solar panels to be installed below the level of the pool up to a height differential of 5 meters
maximum between the hydraulic entry point of the DualSun SPRING hybrid solar panels and the surface of the
pool.
In that case:
• Install the drain valve (12) at the lowest point of the installation
• Do not install the non-return valve (6)
• Keep the flowmeter (7) vertically, flow from bottom to top
3.2. Constitution of the DualSun solar pool heating kit
Designation
Amount
Block dia-
gram refer-
ence
3-WAY MOTORIZED VALVE DN 40 (Ø50 female ends to be glued)
1
(3)
DUALSUN BS/2 SOLAR REGULATION with 1 PT1000 temperature probe
1
(4)
BY-PASS ADJUSTMENT VALVE DN 40 PVC PRESSURE female to glue
1
(5)
Non-return valve Ø 40 PVC PRESSURE female to glue
1
(6)
FLOW METER Ø 40
1
(7)
SHUT-OFF VALVE DN 40 PVC PRESSURE female to glue
2
(8)
T 50/50/50 EQUAL 90 ° PVC pressure female to glue
2
(9)
REDUCTION 50/40 PVC PRESSURE to glue
4
(9)
Non-Return VALVE Ø 50 PVC PRESSURE female to glue
1
(10)
T 50/50/50 EQUAL 90 ° PVC pressure female to glue
1
(11)
Installation, use, maintenance manual - DualSun solar heating system for individual
swimming pools
11
