2 5774 469 v1.0. Table of Contents Page 5774 469 v1.0 Open Therm KM Bus Module, Installation 3 Safety Important Precautions General Information Installation ... There are no user serviceable parts on the
supplied with boiler must be replaced, type 105°C wire or equivalent must be used. Supply wiring to boiler and additional control wiring must be 14 ga. or heavier. - Provide electrical ground at boiler as required by codes. WARNING Electric shock hazard. Can cause severe personal injury or
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and explain the system. Any warranty is null and void if these instructions are not followed. H Flue gas smell - Deactivate heating equipment. - Open windows and doors. - Inform your heating contractor. H Working on the equipment All personnel working on the equipment or the heating system must have the proper qualifications and hold