Fault Indication; Wiring Diagram; Maintenance - Honeywell NA228S-C Einbauanleitung

Instructions for Maintenance and Fault Finding

13. Fault Indication

If the illuminated indicator button lights up, the following faults may be present:
Filling time setting for the appliance too short to allow upper limit to be reached.
In a heating system leaks are present so that the filling volume is not reached.

14. Maintenance

Inspection: Backflow preventer, types 2 and 3 - every six months
Inspection: Check valve - once a year
Water meter: Recalibration - after six years
Carried out by:User or installer.
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15. Wiring Diagram

Electrical Data
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