Connect The Central Heating Supply And Return; Electrical Connections - Buderus Logano G234X Installation And Service Instructions Manual

5.2.2

Connect the central heating supply and return

DANGER: Risk of fire from flammable materials!
▶ Maintain a clearance of 2 inches (51 mm) from pipes
carrying hot water and flammable walls at the
installation location.
We recommend installing a dirt trap and a dirt separator
(accessory) in the heating return connection to reduce
build-up of debris on the water side.
Observe the local regulations for connection of boiler
systems.
Connecting the safety valve in the central heating supply
NOTICE: System damage due to faulty safety valve!
During the leak test, the safety valve can be damaged.
▶ Do not install the safety valve until the leak test
( Section 5.5 Filling heating system and checking
for leaks, page 13) has been completed.
▶ Install the included supply manifold and the 90° elbow.
▶ Do not install the safety valve until the leak test has been completed.
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Fig. 9 Supply connection
[1] Boiler
[2] Safety valve
[3] Supply manifold pipe (factory-installed)
[4] 90°-elbow (¾ " NPT)
[5] Supply connection
Logano G234X – 6 720 811 233 (2014/05)
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5.3

Electrical connections

DANGER: Danger to life from electric shock!
▶ Carry out electrical work on the heating system only
if you are properly qualified for the work in question.
If you do not have the proper qualifications, have the
work done by a suitably qualified electrician.
▶ Observe the local regulations.
▶ Incorrectly terminated cables can result in faulty
operation and possibly dangerous consequences.
When making the electrical connections follow the
wiring diagrams on page 32.
The electrical connections to the boiler must conform to the locally
applicable regulations and the relevant requirements of the National
Electrical Code, ANSI/NFPA-70.
In Canada the regulations of CSA C22.1 Canadian Electrical Code, Part
1, must be observed.
The boiler must be grounded in accordance with the regulations of the
relevant authorities or else the requirements of the National Electrical
Code, ANSI/NFPA-70.
Connecting the power supply
▶ Establish a permanent connection to the factory-installed
TM
AquaSmart in accordance with the locally applicable regulations.
▶ Mount an ON/OFF switch near the boiler.
Fig. 10 Main power switch (by customer)
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Boiler installation
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