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Important warnings
• This manual provides important indications on the sa-
fety of operation, installation and maintenance, and is
an integral and essential part of the product. Read this
manual before installation and operation. It should be
carefully kept for future reference.
• This appliance must only be used for the purposes it has
been specifi cally designed for. This appliance is used to
heat water to below-boiling temperatures at atmospheric
pressure, and must be connected to a heating and/or
domestic hot water distribution system, according to its
characteristics, performance and heating capacity. All
other uses are considered improper and thus dange-
rous.
• The appliance may not be opened nor its components
tampered with, except for the parts included in the main-
tenance operations. The appliance may not be modifi ed
to alter its performance or use.
• The installation and maintenance operations must be
performed according to the standards in force, the in-
structions of the manufacturer and must be carried out
by professionally qualifi ed personnel.
Appr. nr.
Serial number
Heat output
Q
P
Uselful heat output
PMS
Max operating
tmax
pressure
PMW
D
Electrical power
230V~50Hz
supply
0085AS0420
PIN
2
Dear Customer,
Thank you for having chosen the GGN2 N, an advanced-concept FER boiler fea-
turing cutting-edge technology, high reliability and constructional quality. Carefully
read this manual and keep it for future reference.
The GGN2 N is a high-effi ciency heat generator for the production of hot water for
heating purposes, suitable for operation with jet burners on gas or liquid fuel.
The boiler body consists of cast-iron elements, the shape of which, together with
the careful design of the fi ns, ensure high heat exchange effi ciency in all operating
conditions.
12/245
Ser. n. 0352L50349
max
min
234,7
-
185
kW
216
171
-
kW
6
bar
100
C
bar
l/min
H
O
105 L
2
IP X 0D
0085
• Incorrect installation or poor maintenance may cause
damage to people, animals or things. The manufacturer
declines all liability for damage deriving from errors in
the installation and operation of the appliance, and in
any case from the failure to observe the instructions
provided.
• Before performing any cleaning or maintenance opera-
tions, disconnect the appliance from the mains power
supply using the system switch and/or the corresponding
on-off devices.
• In the event of faults and/or poor operation of the ap-
pliance, it should be deactivated. Do not attempt to repair
the appliance. Contact professionally qualifi ed personnel
only.
• After having removed the packaging, check that the
contents are intact. The parts of the packaging must not
be left within the reach of children, as they are potential
sources of danger.
Max operating
pressure temperature
Water content
Certifi cation
Bar code
The CE Mark attests that FER appliances conform
to the requirements specifi ed in the applicable
European directives.
In particular, this appliance conforms to the
following EEC directives:
• Gas directive 90/396
• Effi ciency directive 92/42
• Low voltage directive 73/23 (amended by 93/
68)
• Electromagnetic compatibility directive 89/336
(amended by 93/68)
GGN2 N
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