6 Safety
I
nfor
m
ation
General Installation Guidelines
Navien ensures that this product contains no har
m
ful
substances and that no har
m
ful
m
aterials have been used in its
m
anufacture.
Current legislation
m
ust be taken into account on installing
this appliance, and it
m
ust be installed in a place with suitable
ventilation.
The boiler
m
ust be installed by an installer authorised by the
M
inistry of
I
ndustry and it
m
ust be started up by an
O
fficial
Technical Assistance Service authorised by Navien.
The re
q
uire
m
ents included in the following regulations
m
ust be
observed on installing the boiler:
-
The Gas
I
nstallation Regulation.
-
The Technical Building Code.
-
The Regulation for Heating
I
nstallations in Building.
-
The Low Voltage Regulation.
Installation in hard water areas
Ɣ
I
n areas with hard water (hardness exceeding 200 pp
m
), it is
i
m
portant to install a scale reducer.
The advice of the local water authority should be sought.
Installing the system piping
Ɣ
The boiler is e
q
uipped with an internal relief valve. All syste
m
s
m
ust be capable of sustaining pressure of up to 3 bar.
Ɣ
The air vent is re
q
uired in the syste
m
during filling.
CAUTION
The boiler is e
q
uipped with an internal
bypass valve. The internal bypass valve
is not intended to replace an external
bypass valve. An external auto
m
atic
bypass valve is re
q
uired if a zone valve
has been connected to the syste
m
.
Gas Conversion
The boiler is configured for natural gas.
I
f LPG conversion is
re
q
uired, use the conversion kit supplied with the boiler and
attach the ite
m
m
atching the LPG GC No. (included in the kit).
The Codes of good practice and regulations refer to the
latest versions of the same.
The installation
m
ust also co
m
ply with the following European
Standards:
Standard
Description
UNE-EN 13831:2008
Closed expansion vessels with
diaphrag
m
.
UNE-EN 1856
M
etal chi
m
neys
UNE-EN 13384
Chi
m
neys
UNE-EN 13779
Ventilation
UNE-EN
I
S
O
16484
Building control syste
m
s.
UNE-EN 14336
Heating syste
m
s in buildings.
UNE-EN 15502-1
Gas-fired heating boilers
Part 1: General Re
q
uire
m
ents and tests
UNE-EN 15502-2-1
Gas-fired heating boilers
Part 2-1: Specific standard for type
C appliances and type B2, B3 and B5
appliances of a no
m
inal heat input not
exceeding 1000 kW
UNE-EN 13203:2007
Do
m
estic Hot Water
UNE-EN 303-7:2008
Heating boilers.
EC Conformity Declaration
0063
Navien, hereby declares that the boiler models:
NCB-24LDWE, NCB-28LDWE, NCB-34LDWE, NCB-40LDWE
to which this declaration refers, conform to and comply with
the essential requirements of the following applicable European
Standards and Directives.
Gas appliances
: Directive 2009/142/EC Standards EN 437 and
EN 15502
Boiler Efficiency
: Directives 92/42/EEC and
93/68/EEC
Regulation (EN) No. 813/2013
Standards EN 15502
Low voltage
: Directives 73/23/EEC and
93/68/EEC Standard EN 60335-1, EN 60335-2-30,
EN 60335-2-51, EN 50165
Electro-magnetic Compatibility
: Directive 2004/108/EC
Standards EN 55014
Pressure Vessels
: Directive 97/23/EEC
Navien, manufactures its products using a Quality Assurance
system in compliance with Standard EN-ISO 9001:2000.
Summary of Contents for NCB-24LDWE
Page 65: ...Appendices 65 12 4 Ladder Diagram 3 15A...
Page 69: ...Memo...
Page 70: ...Memo...
Page 71: ...Memo...