Description
The microprocessor-controlled Steca Suntana 2 controller is used for monitoring and controlling of solar thermal systems with two differently oriented collector arrays and a maximum of two domestic hot water or buffer storage tanks.
The system parameters and measured values can be viewed and modified via a 2 x 16-digit LCD display. The amount of solar energy fed from the collector array into the storage tank can be read from the LCD display at any time, thanks to a flow meter with pulse output. The integrated hours-of-operation logger is used to automatically monitor both controller outputs and provides extra operational safety for your solar energy system. The controller has a maximum of five inputs for temperature measurement, a digital pulse input for recording heat quantity, and two outputs for controlling pumps or a switching valve.
Features
Product features
- Electronic speed control
- Maximum storage tank temperature
- Adjustable switch-on temperature difference
- Adjustable switch-off temperature difference
- High level of operational safety through fault diagnosis
- Logging of minimum and maximum temperature values
- Hours-of-operation logger
- Spring clamp terminals allow rapid and easy installation
Displays
- Text LC display
- Temperature display for storage tank and collector
Operation
- Single-language menu navigation, different languages available
Functions
- Heat quantity (pulse generator)
- Reduction of stagnation phases
- Display storage tank top