ESI ESRTM Manuale di istruzioni per l'installazione - Pagina 8
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thermostat
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Arrange for an annual maintenance and inspection schedule
to be carried out by a competent person on every part of the
heating and hot water system.
Safety Notice
WARNING!
Always isolate the AC mains supply before installing.
this product must be fitted by a qualified person, and
installation must comply with the guidance provided in
the current editions of BS767 (IEE wiring regulations)
and part "P" of the building regulations.
Wiring Diagram
Heating
8
3
1
COM