Solar thermal systems
Solar thermal systems convert solar irradiation into heat so that it can be used to heat domestic hot water or for back-up heating.more
Steca TR 0301 U
3 inputs, 1 output
- Compact, multipart designer casing
- Graphical LC display with backlighting
- Animated representation of the systems and operating states
- Non-verbal menu navigation
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Description
The Steca TR 0301 U controller was specially developed for the North American market based on the Steca TR 0301 basic controller. With its special certification (ETL label) from a Nationally Recognized Testing Laboratory (NRTL) in the US, the controller meets the safety standards and minimum requirements of the North American market.
A feature of the Steca TR 0301 series of controllers is the animated graphic display, which offers a complete visualisation of the solar energy system's operating status and solar circuit.
The clearly arranged display ensures easy operation using pictograms. The controller was jointly designed with an internationally renowned design centre. The controller is used for monitoring and controlling solar thermal systems with one collector array and one storage tank. In addition, the controller performs important system monitoring and safety functions to ensure safe and long-lasting operation of the entire system. The numerous additional functions of the Steca TR 0301 U also include a maximum storage tank temperature function, a tube collector function, an anti-freeze function, a holiday and storage recool function as well as a choice of temperature indications in either degrees Celsius (°C) or Fahrenheit (°F). The operational safety of the system is supported by a sophisticated fault diagnosis. The multi-coloured LCD backlighting ensures quick and safe location of occurring errors and facilitates quick troubleshooting.
The Steca TR 0301 U controller is supplied with a pre-fitted US mains connection cable and a preinstalled, pluggable pump output.
Features
Product features
- Compact, multipart designer casing
- Maximum storage tank temperature
- High level of operational safety through fault diagnosis
- Temperature display °C / °F
- Collector overtemperature disconnection
- Spring clamp terminals allow rapid and easy installation
Displays
- Graphical LC display with backlighting
- Animated representation of the systems and operating states
Operation
- Non-verbal menu navigation
- Side switch for manual, auto, off
Functions
- Holiday (storage tank recooling)
- Interval / tube collector
- Anti-freeze
- Display storage tank top
Downloads
Product data sheet
Manuals
Product pics, technical drawings, etc.
Technical data
| TR 0301 U | |
|---|---|
| System voltage | 120 V AC, 60 Hz |
| System voltage optional | 240 V AC, 60 Hz |
| Standby | 1.07 W [0.001 HP] |
| Temperature control class | I |
| Energy efficiency | 1 % |
| Number of inputs | 3 |
| Inputs | 3 x temperature (Pt1000) |
| Number of outputs | 1 |
| Output | 1 x switch output relay (R1), max. 400 W / 0.5 HP (120 V AC) or 800 W / 1 HP (240 V AC) |
| Line cord | 75 inch, 3 x 18 AWG at 221 °F |
| Turn-on temperature difference | 16 F |
| Turn-off temperature difference | 8 F |
| Ambient temperature | 0 °C [+32 °F] … +45 °C [+113 °F] |
| Degree of protection | IP 20 / DIN 40050 |
| Dimensions (X x Y x Z) | 160 x 157 x 47 mm [6.30 x 6.18 x 1.85 inch] |
| Weight | 350 g [12.35 oz] |
| Temperature sensors 2 x Pt1000 | 1.5 m [59 inch] silicone cable without bushing (measuring range up to +180 °C [+356 °F]) |