Navien NCB300-28K, Service Manual

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10 Safety Information
General Installation Guidelines
Navien ensures that this product contains no harmful
substances and that no harmful materials have been used in its
manufacture.
Current legislation must be taken into account on installing
this appliance, and it must be installed in a place with suitable
ventilation.
The boiler must be installed by an installer authorised by the
Ministry of Industry and it must be started up by an Official
Technical Assistance Service authorised by Navien.
The requirements included in the following regulations must be
observed on installing the boiler:
-
The Gas Installation Regulation.
-
The Technical Building Code.
-
The Regulation for Heating Installations in Building.
-
The Low Voltage Regulation.
Installation in hard water areas
●
In areas with hard water (hardness exceeding 200 ppm), it is
important to install a scale reducer.
The advice of the local water authority should be sought.
Installing the system piping
●
The boiler is equipped with an internal relief valve. All systems
must be capable of sustaining pressure of up to 3 bar.
●
The air vent is required in the system during filling.
CAUTION
The boiler is equipped with an internal
bypass valve. The internal bypass valve
is not intended to replace an external
bypass valve. An external automatic
bypass valve is required if a zone valve
has been connected to the system.
Gas Conversion
The boiler is configured for natural gas. If LPG conversion is
required, use the conversion kit supplied with the boiler and
attach the item matching 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 must also comply with the following European
Standards:
Standard Description
UNE-EN 13831:2008 Closed expansion vessels with
diaphragm.
UNE-EN 1856 Metal chimneys
UNE-EN 13384 Chimneys
UNE-EN 13779 Ventilation
UNE-EN ISO 16484 Building control systems.
UNE-EN 14336 Heating systems in buildings.
UNE-EN 15502-1
Gas-fired heating boilers
Part 1: General Requirements 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 nominal heat input not
exceeding 1000 kW
UNE-EN 13203:2007 Domestic Hot Water
UNE-EN 303-7:2008 Heating boilers.
UKCA/EC Conformity Declaration
0086
2797
Navien, hereby declares that the boiler models:
NCB300-28K, NCB300-37K, NCB300-41K
to which this declaration refers, conform to and comply with
the essential requirements of the following applicable European
Standards and Directives.
Gas appliances
: Regulation (EU) 2016/426
Standards EN15502-1, EN15502-2-1 and EN437
Boiler Efficiency
: Directive 92/42/EEC
Regulation (EU) No.813/2013
Standards EN15502-1, EN15502-2-1
Low voltage : Directive 2014/35/EU and
Standards EN 60335-1, EN 60335-2-102
Electro-magnetic Compatibility : Directive 2014/30/EU
Standards EN 55014
Pressure Vessels
: Directive 2014/68/EU
Navien, manufactures its products using a Quality Assurance
system in compliance with Standard EN-ISO 9001:2015.