Connecting The Heating System; General Safety Instructions - Buderus LOGANO PLUS GB312 Installation Instructions Manual

6
Installing the boiler
6.9

Connecting the heating system

This section explains how the boiler is connected to the heating system.
The individual steps involved are:

• General safety instructions

• B-kit Installation
• Connecting the central heating supply and return
• Installing the condensate drain
Examples for possible hydraulic installations are given in the hydraulic
schemes on page 90, 91 and 92.
6.9.1 General safety instructions
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 using 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 the individual components of the control
system and the burner from damp (dripping water,
water spray, rain) during installation, operation and
servicing (e.g. pump replacement, programmer
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 indicator must be used when the boiler
is installed ( Fig. 22).
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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
Logano plus GB312 – 6 720 647 367 (2012/11)
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7 747 010 720-78.1RS