Immergas VICTRIX HYBRID PLUS Manual page 24

Hydraulic connection diagram with storage tank (optional).
Key (Fig. 11):
1 - Indoor unit
2 - Audax.DK4 outdoor unit
3 - Control panel
4 - Filling valve / tap
5 - Gas interception valve
6 - Heat pump flow interception valve with vent
7 - Heat pump return interception valve with vent
8 - System
9 - Storage tank (optional)
10 - Non return valves (not available)
11 - D.H.W. probe
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G - Gas supply
RU - Storage tank unit return
MU - Storage tank unit flow
RR - System filling
SC - Condensate drain
M - System flow
R - System return
MHT - Flow from heat pump
RHT - Return to heat pump
AF - DHW (Domestic hot water) water inlet
AC - Domestic hot water outlet
SA - Outdoor unit water drain
11