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General| Brand | Viessmann |
|---|---|
| Model | EA1 |
| Category | Control Unit |
| Language | English |
Essential guidelines for safe installation, operation, and warranty compliance.
Instructions to read and store all applicable documentation for future reference.
Mandates installation, adjustment, and service by a qualified heating contractor.
Contractor must train owner on equipment, safety, and shutdown procedures.
Emphasizes that failure to follow instructions voids the warranty.
Details crucial regulatory and installation standards to be followed.
Covers product approvals and adherence to national/local installation codes.
Emphasizes that only licensed contractors should perform installation and service.
Provides guidelines for connecting and securing the power supply.
Explains the meaning of symbols used for warnings, cautions, and important notes.
Instructions and steps for physically installing the extension module enclosure on a wall.
Visual guide and legend identifying all electrical connection terminals and ports.
Details on connecting digital inputs for various functions and their assignment codes.
Instructions for using the 0-10V input for setting boiler water temperature.
Diagram and instructions for connecting the KM BUS to the boiler control unit.
Guidance for connecting a circulation pump or a fault message facility to output 157.
Detailed instructions and warnings for connecting the main power supply.
Comprehensive wiring diagram illustrating all connections and components.
Technical specifications including voltage, frequency, current, power, and ambient temperature limits.
