Immergas HYDRO 3 V2 User Manual page 54

3.2 INSTALLING THE WATER PIPES.
CONNECTING THE WATER PIPE
The water pipe must be connected by expert technicians
using two spanners for tightening the pipes of the indoor
unit (Fig. 14).
- When connected for the first time, completely expel the
air through the outlet valve (Fig. 15).
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