Sorel STDC Version 1
Sorel Small Temperature Difference Controller
Made in Germany by Sorel
Single circuit controller for basic systems with 1 storage. This Listing is for Sorel STDC-V1.
The Temperature Difference Controller STDC facilitates efficient use and function control of your solar or heating system. The device is impressive most of all for its functionality and simple, self-explanatory operation. For each step in the input process the individual entry keys are assigned to appropriate functions and explained. The controller menu contains headwords for the measured values and settings, as well as help texts or clearly-structured graphics. The STDC can be used as a temperature difference controller for the various system variants.
Important characteristics of the STDC :
- Depiction of graphics and texts in a lighted display
- Simple viewing of the current measurement values
- Analysis and monitoring of the system by means of statistical graphics,etc.
- Extensive setting menus with explanations
- Menu block can be activated to prevent unintentional changes of settings
- Resetting to factory settings
STDC Version 1
3 temperature sensor inputs
1 relay output 230 AC (on/off)
STDC Version 2
3 temperature sensor inputs
1 electronic relay output 230 AC (for speed control of standard pumps)
STDC Version 3
3 temperature sensor inputs
1 relay output 230 AC (on/off)
1 PWM/0-10V output (for speed control of high effi ciency pumps)
STDC Version 4
3 temperature sensor inputs
1 electronic relay output 230 AC (for speed control of standard pumps)
1 PWM/0-10V output (for speed control of high effi ciency pumps)
| STDC | |
|---|---|
| Sensor inputs PT1000 | 3 |
| Relay outputs 230V | 1 |
| Relay output voltage-free | ✕ |
| Outputs 0..10V or PWM signal for speed control of high-efficiency pumps | 0-1 |
| Number of applications | 9 |
| Extension of pre-defined systems by selectable additional functions | ✕ |
| LEDs red/green for display of operating status | ✕ |
| Statistics and graphic analysis of data memory | ✓ |
| Flow based heat metering via Grundfos direct sensor (VFS / VVX) | ✕ |
| Pressure monitoring via Grundfos direct sensor (RPS) | ✕ |
| Battery-backed Real Time Clock > 24h | ✓ |
| Time and Temperature-controlled thermostat function | ✓ |
| Legionella function via solar | ✓ |
| Legionella protecion via additional heating | ✓ |
| Cooling function | ✓ |
| Setup wizard | ✓ |
| System protection | ✓ |
| Collector protection | ✓ |
| Storage protection (CP Tmax) | ✓ |
| Anti-freeze protection | ✓ |
| Recooling | ✓ |
| Start logic for vacuum tube collectors | ✓ |
| Control program for self-dumping systems (drain-back) | ✓ |
| Function control and error memory with date and time | ✓ |
| Menu blocker | ✓ |
| Power supply for universal voltage range (100…240VAC) and reduced standby consumption | ✕ |
| CAN bus connection for SOREL Connect | ✕ |
| Data logging on microSD card | ✕ |
| Ethernet connection | ✕ |
| Dimensions Height x Width x Depth in mm | 115 x 86 x 45 |
| Housing colour | RAL 9003 |
| Protection Class | IP40 |
| Mounting Hardware, Spare Fuse and User Manual | ✓ |