Operating Manual
Room sealed gas continuous flow water heaters
OptiFlow Professional
6720808879-00.1V
GWH12/16/20 1 CTD E23/31 F5 L
6 720 813 939 (2016/05) AU
Read installation manual prior to installation of this appliance!
Read user manual before putting this unit in operation!
Observe the warnings in the manuals!
The installation location must meet the requirements for sufficient ventilation!
Installation by an authorised person only!
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