The RESOL controller for standard Solar Thermal Systems.  Includes Speed Control and Drainback Functions.

BS/2 - Technical Product Brief

 BS Series Comparison Chart

 BS/2 - Installation & User Manual

The RESOL controller for standard solar thermal systems with (2) standard-relays and an additional Aquastat function.

 BS/3 - Technical Product Brief

BS Series Comparison Chart

 BS/3 - Installation and User Manual

The RESOL controller for standard Solar Thermal Systems.
Includes a heat dump function, drainback functionality including a booster function, and more.

 BS/4 - Technical Product Brief

BS Series Comparison Chart

 BS/4 - Installation & User Manual

The *New* RESOL DeltaSol® BS Plus system controller is preprogrammed for 10 different systems and is equipped with variable speed pump control, thermostat function, drainback and booster options along with energy metering and more.

BS Plus (Classic) - Technical Product Brief

BS Series Comparison Chart

BS Plus (New Version) - Installation & User Manual

The RESOL DeltaSol® BS Plus system controller is preprogrammed for 9 different systems and is equipped with energy metering function, a Real Time Clock and RESOL VBus®.

BS Plus - Technical Product Brief

BS Series Comparison Chart

BS Plus - Installation & User Manual

The controller DeltaSol® E is equipped with 7 basic systems, which can be preprogrammed variably, so that manifold large systems can also be controlled by the DeltaSol® E. The DeltaSol® E is available in both °C and °F models.

 RESOL DeltaSol E - Technical Product Brief

DeltaSol E User Manual:  Celsius  |   Farenheit

*This product is not UL/CSA Certified

The controller DeltaSol® ES is pre-programmed with 36 Solar and Heating Systems.

The number of sensor inputs and relay outputs (10/6) combines with excellent remote maintenance and communication features to provide a sophisticated and user-friendly control solution.

 DeltaSol ES - Technical Product Brief

 DeltaSol ES - Installation & User Manual

Only available in °C

The DeltaSol® M is equipped with a multi-lingual menu, 9 relay outputs and 12 sensor inputs as well as a multitude of add-on functions and options, which enable the adaptation of the controller to individual solar and heating systems.

The controller is equipped with an interface for communication with the RESOL ServiceCenter Software.  The DeltaSol M is available in 24V and 115V Forms.

 RESOL DeltaSol M - Technical Product Brief

DeltaSol M User Manual:   115V  |   24V

*Currently only available in °C

The DeltaSol® Pool is a controller for heating a swimming pool by means of solar collectors and optimized operation of the filter system.

Backup heating of the swimming pool is varied according to solar power and pool demand, thus saving expensive energy.

The controller has many additional pool functions such as: additional filter runtime, maximum limitation of flow temperature and a flushing function.

 DeltaSol Pool - Technical Product Brief

 DeltaSol Pool - Installation & User Manual