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Electrical connections
Requirements
19
7
Electrical connections
7.1
Requirements
Electrical connection must only be made by
qualified specialist personnel
The electrical installation must only be performed
by specialist personnel with the corresponding
qualifications.
DANGER!
Electric shock
There are live parts on the circuit boards. If
touched, they can cause injury and
property damage.
Before beginning any work, isolate the system
completely from all power sources, ensure that it
cannot be switched back on, and verify that it is
safely isolated from supply.
WARNING!
Earthing of the boiler is required
Separate earthing is required for the boiler.
To do so, a connection must be established
between the boiler and the structural
potential equalisation in the boiler room
(minimum cross-section 6 mm²).
DANGER!
Do not carry out work on high voltage units
The housing of the high voltage unit may
not be opened or damaged as there are
parts inside it that are under high voltage.
Non-compliance with the above may
result in serious or fatal injuries.
7.2
Electrical connection
Electrical connection to the boiler
Remove the plug from the terminal [S51] on the boiler
circuit board [HA-C]. Detach the wire on the plug [S53
STB] from the "COM" contact. It will be reattached to
the screw terminal later.
Содержание EEP 130
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