Installation
5
pump group Logamax plus GB162-65/80/100 - Subject to modifications resulting from technical improvements!
15
Connecting the expansion vessel in a multi-boiler
configuration (cascade configuration)
In cascade systems only one expansion vessel is
required for the heating system.
Connect the expansion vessel to the secondary side
of the header in the return circuit (fig. 17), so that
every boiler is connected to the expansion vessel
(fig. 17).
Refer to the cascade system installation instructions for
the installation details.
5.8
Making the electrical connections to the pump
Turn the vent key through a quarter rotation to undo
the boiler door lock (fig.18,
item 1
).
Push the fastener down (fig. 18,
item 2
) and open the
boiler door (fig. 18,
item 3
).
Remove the cover shield of the pump group (fig. 18,
item 4
).
fig. 17
Connecting the expansion vessel in a multi-boiler
configuration (cascade configuration)
Item 1:
Expansion vessel
VK
RK
GAS
VK
RK
GAS
1
fig. 18
Opening the boiler door
1
2
3
4
