Steca TR 0502 U

5 inputs, 2 outputs

  • Compact, multipart designer casing
  • Multifunction graphical LC display with backlighting
  • Animated representation of the systems and operating states
  • Multilingual menu navigation
Steca TR 0502 U picture.jpg
Steca TR 0502 U picture 3D.jpg
TR 0502 U Produktbild Homepage.jpg
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Steca TR 0502 U picture.jpg
Steca TR 0502 U picture 3D.jpg
TR 0502 U Produktbild Homepage.jpg

Description

The Steca TR 0502 U controller was specially developed for the North American market based on the Steca TR 0502 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.

The equipment is connected inside the installation casing using either a plug & play solution for the mains and pump connections or alternatively 1/2 inch cut-outs.

This controller provides everything to operate your solar thermal system safely over a long service life. The Steca TR 0502 U controller monitors and controls solar thermal systems with two differently oriented collector arrays and a maximum of two domestic hot water or buffer storage tanks. The large graphic display shows the animated control circuits, which allows you to view the operating statuses of each system. The clearly arranged display ensures easy operation using pictograms. Pre-programmed systems enable universal usage. The Steca TR 0502 U controller has five inputs for recording temperatures or pulse values, as well as two outputs (one is speed-controlled) for controlling pumps or switching valves.

Features

Technical drawing: Steca TR 0502 U 5 inputs, 2 outputs

Product features

  • Compact, multipart designer casing
  • Electronic speed control
  • High level of operational safety through fault diagnosis
  • Hours-of-operation logger
  • Software update possible
  • Storage tank target temperature loading
  • Daily pump start
  • Plug & play for 120 V AC mains and pump connections in installation casing
  • Screwed connections facilitate fast sensor installation
  • Integrated Steca TPC 1 bus

Displays

  • Multifunction graphical LC display with backlighting
  • Animated representation of the systems and operating states

Operation

  • Multilingual menu navigation
  • Side switch for manual, auto, off

Options

  • Installation casing with 1/2 inch cut-outs as an alternative to plug & play

Functions

  • Heat quantity (Grundfos Direct Sensors™, pulse generator, determination)
  • Heating return increase
  • Reduction of stagnation phases
  • Holiday (storage tank recooling)
  • Circulation (controlled by temperature / time / pulse)
  • Back-up heating
  • Solid fuel boiler
  • Storage tank quick charge
  • Thermostat
  • Differential thermostat
  • Timer
  • Interval / tube collector
  • Anti-freeze
  • Display storage tank top
  • Alarm output
  • Two loading zones

Downloads

Product data sheet

  •  Steca TR 0502 U productdatasheet DE · pdf · 0,262 MB
  •  Steca TR 0502 U productdatasheet EN · pdf · 0.262 MB
  •  Steca TR 0502 U productdatasheet FR · pdf · 0,266 MB

Manuals

  •  Steca TR 0502 U manual EN · pdf · 5.985 MB

Product pics, technical drawings, etc.

  •  Steca TR 0502 U product pic 3D · jpg, 300 DPI, high quality · 1.089 MB
  •  Steca TR 0502 U product pic 3D · jpg, 72 DPI, web quality · 0.320 MB
  •  Steca TR 0502 U product pic · jpg, 300 DPI, high quality · 1.097 MB
  •  Steca TR 0502 U product pic · jpg, 72 DPI, web quality · 0.299 MB
  •  Steca TR 0502 U product pic drawing · jpg, 300 DPI, high quality · 0.590 MB
  •  Steca TR 0502 U product pic drawing · jpg, 72 DPI, web quality · 0.292 MB

Technical data

 TR 0502 U
System voltage
120 V AC, 60 Hz
System voltage optional
240 V AC, 60 Hz
Standby
1.57 W [0.003 HP]
Temperature control class
I
Energy efficiency
1 %
Number of inputs
5
Inputs
4 x temperature (Pt1000), 1 x temperature (Pt1000) or pulse
Additional inputs
1 x Grundfos Direct Sensors™ (temperature / flow rate)
Number of outputs
2
Outputs
1 x triac for speed control (R1), max. 230 W / 0.3 HP (120 V AC); 1 x switch output relay (R2), max. 400 W / 0.5 HP (120 V AC) or R2 voltage free
Additional output
1 x alarm output
Line cord
75 inch, 3 x 18 AWG at 221 °F
Hydraulic schemes
14
Ambient temperature
0 °C [+32 °F] … +45 °C [+113 °F]
Interfaces
RS-232, RS-485 (Steca TPC 1 bus)
Degree of protection
IP 20 / DIN 40050
Dimensions (X x Y x Z)
170 x 178 x 90 mm [6.69 x 7.00 x 3.54 inch]
Weight
1400 g [45.01 oz]
 
Solar system, collector, single-family house

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
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