Immergas BASIC MAGIS PRO Instructions And Warnings page 88

Using the pipes inside the accessory box, make the remaining
hydraulic connections between the storage tank unit (a) hydronic
unit (c) and the Magis Pro V2 indoor unit (P), as shown in Fig. 31
AF
88
AC
MU
a
MU
RU
For easier assembly, start with the pipes closest to the rear wall
up to those closest to the installer, remembering to interpose the
appropriate gaskets supplied.
At the end of the installation, insulate all the connections with the
material present inside the accessories box.
P
RR
c
31
R
M