For
mounting
our
product
parallel
to
a
traditional
gas
boiler,
according
to
the
diagram
shown
it
is
necessary
to
connect
a
three
‐
way
valve
on
the
same
pins
(15
and
16)
used
for
the
recirculation
pump.
M
Figure 2.9:
Control
board
wiring
diagram
2.5
Instructions
for
mounting
product
covering
For
mounting
the
outer
covering,
simple
instructions
are
provided:
1.
Use
a
crosshead
screwdriver.
2.
Lift
the
top
(1)
,
remove
the
two
screws
holding
the
display
.
Take
care
when
moving
the
top
in
order
to
avoid
damaging
or
disconnecting
the
flat
connecting
cable
between
the
board
and
the
display