1 Application area / device features
1.1 Application area
VISION controllers are high-performance microprocessor-controlled units for
controlling the functions of solar thermal systems. The VISION perfectly controls
solar power systems equipped with up to two collectors or two storage tanks and
can be used for numerous system types. The controllers are designed for use in
dry rooms as well as residential, business and commercial applications. Prior to
commissioning the device, make sure to verify that the intended use complies
with the applicable regulations.
1.2 Device features
The controller is equipped with the following features:
Intuitive operating menu with graphic symbols and four operating buttons■
Illuminated display■
Adjustable control values■
Solar circuit pump RPM control or switching control■
Start function for systems equipped with tube collectors■
Integrated operating hours counter for storage tank charging■
Extensive functions for system monitoring that display symbols to indicate■
errors and faults
Integrated energy yield measurement■
(optional, only in conjunction with the yield measurement set)
Storage of all values even during a prolonged mains power supply outage■
Various protective functions, such as system protection, collector protection,■
recooling and anti-freeze protection
Individually operated independent controller■
Generous wiring space■
Available accessories:
Temperature sensor PT1000■
Yield measurement set (incl. tube sensor)■
Sensor connection box■
Immersion sleeves■
2 Safety instructions
Always completely disconnect the device from the operating voltage before■
performing installation or wiring work on the electrical equipment.
Never mix up the connections of the protective low voltage areas (sensor, ow
sensor) with the 230V connections. Otherwise, the device will be destroyed.
The device and the connected sensors may carry deadly voltages.
Solar power systems can reach high temperatures. Such temperatures pose a■
risk of burns! Exercise caution when installing the temperature sensors!
Mount the controller in a position where it will not be subjected to excessive■
operating temperatures (> 50°C) by any external heat sources.
For safety reasons, the system may only remain in manual operation for testing
purposes. In this operating mode, the system does not monitor for maximum
temperatures and sensor functions. If there is any recognisable damage to the
controller, cables or the connected pumps and valves, the system must not be
started.
All installation and
wiring work must only be
carried out on the controller
when the device is disconnected
from the power supply.
The controller must only be
connected and commissioned
by qualified personnel. In doing
so, the applicable safety regula-
tions must be observed.
