Simple Solar Control Unit; Safety Requirements; Maintenance - Technische Alternative ESR 31 Manual De Instrucciones

SIMPLE SOLAR CONTROL UNIT

Safety requirements

All installation and wiring work on the controller must only be carried
out in a zero-volts state.
The opening, connection and commissioning of the device may only be
carried out by competent personnel. In so doing, all local security re-
quirements must be adhered to.
The device corresponds to the latest state of the art and fulfils all necessary safety condi-
tions. It may only be used or deployed in accordance with the technical data and the safety
conditions and rules listed below. When using the device, the legal and safety regulations
apposite to the particular use are also to be observed.
► The device must only be installed in a dry interior room.
► It must be possible to isolate the controller from the mains using an all-pole isolating de-
vice (plug/socket or double pole isolator).
► Before starting installation or wiring work, the controller must be completely isolated from
the mains voltage and protected against being switched back on. Never interchange the
safety extra-low voltage connections (sensor connections) with the 230V connections. De-
structive and life-threatening voltages at the device and the connected sensors may occur.
► Solar thermal systems can become very hot. Consequently there is a risk of burns. Take
care when fitting temperature sensors!
► For safety reasons, the system should only be left in manual mode when testing. In this
operating mode, no maximum temperatures or sensor functions are monitored.
► Safe operation is no longer possible if the controller or connected equipment exhibits visu-
al damage, no longer functions or has been stored for a lengthy period of time under un-
suitable conditions. If this is the case, place the controller and equipment out of service
and secure against unintentional use.

Maintenance

If used properly, the system does not require maintenance. A cloth moistened with a soft
alcohol (such as spirit) should be used for cleaning. Harsh solvents such as chlorethenes or
tri-gases are not admissible.
As the components relevant to accuracy are not subjected to loads if used properly, long-
term deviation is very low. The unit thus cannot be adjusted. Hence, no calibration is possi-
ble. The construction characteristics of the unit must not be changed for repairs. Spare parts
must correspond to the original parts and be used as intended.
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