6
Installing the boiler
Logano plus GB312 – 6 720 806 273 (2013/01)
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6.9
Connecting the heating system
This chapter details how to make the heating circuit connections. The
individual steps involved are:
• Safety instructions
• Installing B-Kit
• Connecting the central heating supply and return
• Installing the condensate drain
Examples of possible hydraulic installations are given in the hydraulic
diagrams on pp. 113, 114 and 115.
6.9.1
Safety instructions
Fig. 22 Low-water cut-off
[1]
Boiler
[2]
Radiator
[3]
Heating system with low-water cut-off
[4]
Heating system without low-water cut-off
CAUTION:
Risk of system damage due to high
temperature variations in the heating system!
▶ If the boiler is operated in conjunction with an air
conditioning system, it is essential to ensure that the
pipes for the refrigerant fluid are connected in
parallel with the boiler system by means of suitable
valves to prevent the refrigerant from entering the
boiler.
▶ The piping 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 during the cooling cycle.
CAUTION:
Risk of boiler damage due to moisture!
▶ Protect all individual components of the control
system and the burner from moisture (dripping
water, water spray, rain) during installation,
operation and servicing (e. g. pump replacement,
controller replacement, etc.
CAUTION:
Risk of system damage due to overheating as
a result of lack of water!
▶ Make sure that if the boiler is located above the level
of the heating system, it is fitted with a low-water cut-
off.
▶ The low-water cut-off must be installed when the
boiler is installed (
Fig. 22).
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