14
Installation and maintenance instructions Logano G124X II/SP special gas-fired boiler • Issue 04/2005
We reserve the right to make any changes due to technical modifications.
Boiler installation
7
7.2
Connecting the heating system
Fig. 10
Low-water alarm
1
Boiler
2
Radiator
3
Heating system with low-water cutoff
4
Heating system without low-water cutoff
1
2
2
1
2
2
2
2
3
4
CAUTION!
BOILER DAMAGE
through moisture.
z
Protect the components of the gas
ignition system from moisture (dripping,
spray, rain) during installation of the
boiler, during operation and during
maintenance work (such as replacing
the pump, replacing the control, etc.).
CAUTION!
SYSTEM DAMAGE
due to overheating as a result of low water.
z
Note that a boiler installed above the
level of the heating system must be
fitted with a low-water cutoff. The low-
water cutoff must be installed during
installation of the boiler (
CAUTION!
SYSTEM DAMAGE
due to high temperature variations in the
heating system.
z
If the boiler is operated in connection
with a refrigeration system, make sure
that the pipes for the refrigerated liquid
are connected in parallel to the boiler
system with suitable valves to prevent
the refrigerated liquid from entering the
boiler.
z
The pipe system of a boiler connected
to the heating coils of hot-air heating
systems that may be exposed to the
circulation of cooled air must be fitted
with a flow-control valve or some other
automatic system for preventing the
boiler water from circulating by gravity
during the cooling cycle.