Fuel Connection; Making The Electrical Connection - Buderus Logano plus GB312 Installation And Maintenance Instructions Manual

5.7

Fuel connection

DANGER: Risk to life from explosion of
flammable gases!
B Work on gas components must only be
carried out by an authorised gas fitter.
B Observe all local regulations relating to
the gas connection.
B Seal in the gas connections with an
approved sealant.
B Install a gas shut-off valve in the gas supply line. When
doing so, prevent the gas line inside the boiler from
becoming twisted.
Subject to local regulations, install thermally
activated shut-off equipment.
In addition, we recommend the installation of
a gas filter and compensator in the gas line in
accordance with local regulations.
B Connect a compensator (recommendation) to the gas
shut-off valve.
B Connect the gas line to the gas connection or
compensator free of stress.
B Secure the gas line with pipe clips so that the gas
connection is free from any stresses.
B Close the gas shut-off valve.
Logano plus GB312 - Subject to technical modifications.
5.8

Making the electrical connection

The boiler can only function fully with an installed control
unit.
When connecting electrical components, also observe
the connection diagram and instructions of the relevant
product.
Ensure that a standard-compliant isolator
(contact separation > 3 mm) for isolating the
boiler from the power supply across all poles
is installed.
B Install such an isolator if none is present.
NOTICE: System damage through incorrect
installation!
Observe the following points regarding the
electrical connection:
B Electrical work on heating systems must
only be carried out by qualified
electricians.
B If you do not possess an appropriate
qualification, ask a qualified electrician to
make the electrical connection.
B Observe all local regulations!
DANGER: Risk to life from electric shock
when the appliance is open!
B Before opening the boiler:
Disconnect the heating system from the
power supply by means of the emergency
stop switch or the relevant circuit breaker/
fuse in the main fuse board. It is not
enough to switch off the control unit.
B Safeguard the heating system against
unintentional reconnection.
5
Installation
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