DIFFERENTIAL CONTROLLERS

SGC universal differential controllers are intended for the control of solar systems for domestic hot water heating as well as a support system for room heating. Advanced operation algorithms ensure an optimal usage of solar energy and allow for the control of energy efficient circulation pumps. The SGC controllers have integrated preset hydraulic schemes that allow a fast and simple installation.

START-UP WIZARD

Step 1

Step 2

The SGC controller is equipped with a start-up wizard, which takes you through the initial settings of the controller in 2 steps.
Step 1: language selection.
Step 2: hydraulic scheme selection.

MEASUREMENT OF THE ENERGY OBTAINED

Display by days

Display by months

Display by years

When the solar system is also used for domestic hot water heating, we want to know how much heating energy has been obtained from the solar system.
The SGC controllers allow for an informative and accurate measurement of the solar energy obtained and the display of the data in weekly, monthly and yearly diagrams.
For informative measurements of the solar energy obtained, the maximum reading of the medium flow from the mechanical meter must be entered in the controller settings.
For accurate measurements of the solar energy obtained, a flow meter with a pulse generator or a Vortex flow meter (VFS) must be installed in the solar system.

CONNECTION OF AN ENERGY-SAVING CIRCULATION PUMP WITH EXTERNAL CONTROLLED SIGNAL

The SGC controller allows the speed control of energy-saving circulation pumps with external controlled PWM signal or 0–10V. This type of speed control is possible with R2 and R3 relay outputs. All SGC controllers feature the R2 relay output, while the SGC36HV and SGC67HV controllers feature the R3 relay output.

REMOTE CONTROL WITH THE HELP OF SELTRONHOME SYSTEM

The SGC controllers may be connected to the SeltronHome platform, which allows for the heating remote control using a smartphone or tablet. Remote control is enabled through the CLAUSIUS application for the final user and the KELVIN app for service technicians. The application allows you, for example, to switch on a single domestic hot water heating process outside of a time programme.

TYPICAL HYDRAULIC SCHEME

Solar collectors, domestic hot water storage tank, solid fuel boiler, auxiliary heating with electricity
Example: hydraulic scheme 231d.

 SGC16HSGC26HSGC36HVSGC67HV
APPLICATION
In sanitary water heating systems with classical or vacuum collectors     
In sanitary water heating systems with additional heat sources     
In storage tank heating systems with solar system and additional heat sources   
In swimming pool heating systems   
For single-stage storage tank charging  
For dual-stage storage tank charging 
TECHNICAL CHARACTERISTICS
No. of preset hydraulic diagrams5225365
No. of mechanical relays114
No. of solid-state relays1122
No. of temperature sensor inputs6667
No. of collector fields 1222
No. of storage tanks1233
Measurement of generated energy (kW/h)    
The possibility of measurement using impulse flow meter (l/min)    
Rotation speed control of the energy-efficient pump (PWM, 0–10V) 1 pump1 pump2 pumps2 pumps
Rotation speed control of classical pumps (RPM) 1 pump1 pump2 pumps2 pumps
Free programming option1 output2 outputs3 outputs
BUS option – SGC controller interconnections and connections with other Seltron controllers     
REMOTE ACCESS
The possibility of USB connection to a PC     
The SeltronHome platform connectivity allowing remote control via smartphone or tablet