Datasheet

TR A501 T
System voltage 115 V AC ... 230 V AC, 50 Hz / 60 Hz
Own consumption ≤ 0.8 W
Inputs 5
4 x temperature (Pt1000)
1 x temperature (Pt1000) or pulse
Outputs 1
1 x Triac for speed control (R1),
max. 250 W (230 V) or
PWM control signal for pump speed
(PWM R1)
Hydraulic schemes 8
Ambient temperature 0 °C ... +50 °C
Degree of protection IP 22 / DIN 40050 [without front panel: IP 20]
Dimensions (X x Y x Z) 110 x 160 x 51 mm
Weight 300 g
Technical data at 25 °C / 77 °F
12 140
51
110
160
Steca TR A501 T
5 inputs, 1 output
The Steca TR A501 T solar thermal controller has been developed to
be especially efficient in the widest possible range of applications. It
is an ideal solution for all single-circuit systems.
The compact designer casing can be superbly integrated into solar
stations, but can of course also be installed on walls or top-hat rails.
A special switched-mode power supply ensures maximum effi-
ciency and economic operation: This reduces own consumption to
a minimum and the variable input voltage allows universal use of
the device anywhere in the world. The innovative electronic load
control technology protects the controller against overloading and
installation errors.
The Steca TR A501 T has a triac output for speed control that
can also be used as a PWM output for controlling a high-efficiency
pump. The equipment is rounded off by five inputs for recording
temperature and pulses.
Together with an external pulse encoder, the integrated calorime-
try system allows the acquisition of numerical information on the
solar yields of the system. The clear, graphically animated display
provides visualisation of the system and the current operating sta-
tus. The consistent use of pictograms guarantees easy operation.
The Steca TR A501 T controller is especially suitable for monito-
ring and controlling solar thermal systems with a single collector ar-
ray or simple solar-heated swimming pools. Alternatively, numerous
pre-programmed configurations are provided for individual use in
other applications, such as back-up heating, solid fuel boilers, ther-
mostats, differencial thermostats / storage tank reloading, return
increases and circulation systems.
The Steca TR A501 T also provides important system monitoring
and safety functions, such as special error displays for rapid cor-
rection of system malfunctions. This ensures long-term, safe and
reliable operation of the entire solar system.
Product features
∙ Compact, multipart designer casing
∙ Installation versions: Solar pump stations, wall installation,
mounting rails
∙ Wave packet (Triac) and pulse width modulation (PWM) ensure
electronic RPM control
∙ High level of operational safety through fault diagnosis
∙ Hours-of-operation logger
∙ Software update possible
∙ Daily pump start
∙ Screw terminals allow universal and rapid installation
∙ Low power consumption thanks to universal and wide-range
switched-mode power supply
∙ Variable input voltage range for worldwide controller
deployment
∙ Electronic overloading control and protection
Displays
∙ Multifunction graphical LCD display with backlighting
∙ Animated representation of the systems and operating states
Operation
∙ Non-verbal menu navigation
∙ Manual switch for manual, auto, off
Functions
∙ Heat quantity (pulse generator, determination)
∙ Display showing CO
2
savings
∙ Reduction of stagnation phases
∙ Holiday (storage tank recooling)
∙ Storage tank quick charge
∙ Interval / tube collector
∙ Anti-freeze
∙ Display storage tank top
Areas of application:
inputs/outputs:
SOLAR CONTROLLERS
5 1