Technical data

ManualsBrandsShelter Logic ManualsSport & travel14'W x 7'H

SOLAR

THERMAL

SOLAR

THERMAL

Collector 1 st. tank

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|71

Steca TR 0301 U

The TR 0301 U controller was specially developed for the

North American market based on the TR 0301 basic con-

troller. With its highly fireproof case and special certifica-

tion (ETL label) from a Nationally Recognized Testing La-

boratory (NRTL) in the US, the controller meets the safety

standards and minimum requirements needed in order to

be sold and distributed in North America.

A feature of the TR 0301 series of controllers is the anima-

ted graphic display, which offers a complete visualisation

of the solar system’s operating mode 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 sys-

tems which have a collector array and a storage tank. In

addition, the controller also has important system moni-

toring and safety functions to ensure safe and durable

operation of the entire system. The numerous additional

functions of the TR 0301 also include the option of limi-

ting the storage tank temperature, a tube collector func-

tion, an antifreeze function, a holiday and storage re-cool

function as well as a choice of temperature indications in

either degrees Celsius (°C) or Fahrenheit (F°). The operati-

onal safety of the system is supported by a sophisticated

fault diagnosis. The multi-coloured LCD backlight ensures

quick and safe location of occurring errors and facilitates

quick troubleshooting.

The TR 0301 U controller is supplied with a pre-fitted US

mains connection cable and a preinstalled, pluggable

pump output.

Steca TR 0301sc

The controller TR 0301sc is the RPM-controllable version

of the basic controller TR 0301. In addition to the speed

control of the solar circuit pump, the TR 0301sc also al-

lows logging of the solar circuit pump‘s hours of opera-

tion, as well as recording the minimum and maximum

temperature values from the collector and the storage

tank. The controller is used for monitoring and control-

ling solar thermal systems which have a collector array

and a storage tank. With its animated graphic display,

which is clearly arranged, the TR 0301sc visualizes the

operational status as well as the complete solar circuit of

the solar energy system. The consistent use of pictograms

helps make the controller easy to operate. The control-

ler also performs important system monitoring and sa-

fety functions to ensure safe and long-lasting operation

of the entire system. The numerous additional functions

of the TR 0301sc include the option of limiting the sto-

rage tank temperature, a tube collector function, an anti-

freeze function, a holiday and storage re-cool function,

as well as a choice of temperature indications in either

degrees Celsius (°C) or Fahrenheit (°F). The operational sa-

fety of the system is supported by a sophisticated fault

diagnosis. The multi-colored LCD backlight ensures quick

and safe location of occurring errors and facilitates quick

troubleshooting.

Features

Backlight LCD-Display

Functioning of solar energy system shown

in animated display

Compact, 3 piece designer case

Speed control of solar circuit pump

Tube collector function

Holiday (storage recool) function

Limitation of storage tank temperature

Temperature display °C / °F

Logging of solar circuit pump operating hours

Minimum and maximum displays of the storage tank

and collector temperatures

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134

137

Temperature Differential Controller TR 0301sc

System voltage 230 V (± 15 %), 50 Hz

[optional 115 V (± 15 %), 60 Hz]

Max. own consumption ≤ 1 W

Inputs 3

3 x temperature determination (Pt1000)

Output 1

1 x R1 triac for speed control,

max. 200 W [230 V]

Turn-on temperature difference 8 K

Turn-off temperature difference 4 K

Operation temperature range 0 °C...+45 °C

Animated LCD-Display 2 colour backlight

Protection class IP 20 / DIN 40050

Weight 250 g

Dimensions l x w x h 137 x 134 x 38 mm

INPUTS

OUTPUT

INPUTS

OUTPUT

Features

Backlight LCD-Display

Animated representation of solar system functions

Compact, 3-piece designer case

Anti-freeze function

Tube collector function

Holiday (storage re-cool) function

Limitation of storage tank temperature

Temperature display for storage tank and collector

Pump operating status display

Temperature sensor monitoring and system

monitoring

Temperature display °C / °F



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Temperature Differential Controller TR 0301 U

System voltage 120 VAC, 60 Hz

[optional 240 VAC, 60 Hz]

Max. own consumption ≤ 1 W (≤ 0.001 HP)

Inputs 3

3 x temperature recording (Pt1000)

Output 1

Switch relay; switching performance

max. 400 W (0.5 HP [120 V~]) or 800

W (1 HP [240 V~])

Turn-on temperature difference 8 K (46.4 °F)

Turn-off temperature difference 4 K (39,2 °F)

Operation temperature range 0 °C ... +45 °C (32 ... +113 °F)

Animated LCD-Display 2 colour backlight

Protection class IP 20/DIN 40050

Weight 0.55 kg (19.54 oz) including cable

Dimensions l x w x h 160 x 157 x 47 mm

6.3“ x 6.18“ x 1.85“

Temperature sensors

2 x Pt1000

Collector sensor: 59 inch (1.5 m)

silicone cable with bushing

(Measuring range up to +356 °F

(+ 180 °C))

Storage tank sensor: 11.8 inch (0.3 m)

twisted single conductor flat surface

sensors with compression cable lug

(Measuring range up to 222 °F

(+105 °C))

System with 1 storage tank

*optional

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System examples

Technical data

System examples

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System with 1 storage tank

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System with 1 storage tank and

3 temperature sensors

Technical data

Temperature

Differential

Controller

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Temperature

Differential

Controller