3.7. Installation of the DualSun BS/2 solar controller
3.7.1. General
The solar panels must be slaved to an automatic DualSun BS/2 controller allowing the pool to be maintained at
the desired temperature.
The principle of operation of a solar control system is to direct the water from the filtration circuit into the solar
collectors when the swimming pool needs to be heated and, on the contrary, prevent it from passing through
them when the desired temperature is reached or when the ambient temperature is too low (risk of swimming
pool cooling).
The water circulation in the solar collectors will be obtained from the filtration system pump.
The solar controller consists of a DualSun BS/2 differential controller intended to automatically control the mo-
torized 3-way valve, see
Installation of the motorized 3-way valve [19]
3.7.2. Overview of the DualSun BS/2 solar control system
The DualSun BS/2 solar control unit is supplied with a sensor for measuring the temperature of the swimming
pool water.
A probe supplied in the DualSun essential kit is intended for the temperature measurement of solar panels.
These two probes must be connected to the solar controller to ensure the differential temperature control of the
solar installation.
Each probe can be fitted with an electric cable which can be extended if necessary using a 2 x 0.75mm² cable.
Dimensions:
Installation, use, maintenance manual - DualSun solar heating system for individual
swimming pools
14
