10/2010 - Art. Nr. 4200 1030 6900A
2
Overview
Contents
We accept no responsibility for
damage arising from:
- inappropriate use.
- incorrect installation and/or repair on
the part of the buyer or any third party,
including the fitting of non-original
parts.
Final delivery and instructions for
use
The firing system fitter must supply the
operator of the system with operating
and maintenance instructions on or
before final delivery. These instructions
should be displayed in a prominent
location at the point of installation of the
heat generator, They should include the
address and telephone number of the
nearest customer service centre.
Notes for the operator
The system should be inspected by a
specialist at least once a year.
Depending on the type of installation,
shorter maintenance intervals may be
necessary! It is advisable to take out a
maintenance contract to guarantee
regular servicing.
Overview
Contents.................................................................... 2
Important information................................................2
Burner description..................................................... 3
Operation
Gas start-up mode, gas operating mode ..................4
General safety functions........................................... 4
Fuel-air compound control........................................ 5
Gas valves and instruments group ...........................5
Automatic furnace controller LFL 1.../LGK... ............6
Gas valve VGD with SKP regulator .......................... 7
Gas valve MBC-SE...................................................7
Assembly
Boiler lining for G-R burner, burner assembly........... 8
Gas connection.........................................................9
Checking, assembling the combustion components10
Gas connection, electrical connection .................... 11
Checks before commissioning................................ 11
Commissioning
Burner power adjusting sequence .......................... 12
Mechanical compound, electrical actuator.............. 13
Limit switch setting.................................................. 13
Monitoring of the flame by ionisation ...................... 14
Sensor current measurement ................................. 14
Gas pressure switch, air pressure switch ............... 15
Gas valves and instruments group
Description.............................................................. 16
Basic construction.............................................. 17-19
Gas valve leakage controller................................... 20
Servicing
Maintenance ..................................................... 21-22
Exhaust gas test, trouble shooting instructions.. 23-24
Operating trouble .................................................... 25
Declaration of conformity
for gas burners
We,
Elco Burners GmbH, Herbert-
Liebsch-Straße 4a, 01796 Pirna,
Germany
,
declare under our sole responsibility
that the products
N6.2400 G-R
N6.2900 G-R
N7.3600 G-R
N7.4500 G-R
conform to the following standards
EN 50165
EN 12953-7
EN 12952-8
EN 61000-6-2
EN 61000-6-4
EN 676
These products bear the CE mark in
accordance with the stipulations of the
following directives
2006/42 /EC Machinery directive
2004/108/EC EMC directive
2006/95/EC
Low voltage directive
2009/142/EC Gas appliances
Directive
97/23/EC
Pressure Equipment
Directive
Pirna, 26th May 2010
D. HOFFMANN
I
mportant information
N6 and N7 G-R burners are designed for
the combustion of natural gas. The
design and function of the burners meet
standard EN 676. They are suitable for
use with all heat generators complying
with standard within their respective
performance range. Any other type of
application requires the approval of
ELCO.
Installation, start-up and maintenance
must only be carried out by authorised
specialists and all applicable guidelines
and regulations must be complied with.
Burner description
N6 and N7 G-R burners are progressive
mechanical fully automatic monoblock
devices.
Emissions values may differ, depending
on combustion chamber dimensions,
combustion chamber load and the firing
system (three-pass boilers, boilers with
reverse firing). For specifying warranty
values, the conditions for the measuring
equipment, tolerances and humidity
must be observed.
Packaging
The burner is supplied packaged in
three boxes on a pallet:
- Burner body with:
- integrated switch cabinet
- flange seal and securing screws
- operating instructions, circuit
diagram and spare parts list
- Combustion head
- Compact gas train with integrated or
external filter
The following standards should be
observed in order to ensure safe,
environmentally sound and energy-
efficient operation:
EN 226
Connection of fuel oil and forced-
draught gas burners to a heat generator
EN 60335-1, -2-102
Specification for safety of household
and similar electrical appliances,
particular requirements for gas burning
appliances
Gas lines
When installing the gas lines and trains,
the general directives and guidelines, as
well as the following national
regulations, must be observed:
CH: - G1 instruction text from SSIGE
- EKAS form no. 1942,
liquefied gas directive, part 2
- Cantonal authority guidelines
(e.g. directives for the pilot valve)
DE: - DVGW-TVR/TRGI
Installation location
The burner must not be used in rooms
with aggressive vapours (e.g. hair spray,
tetrachloroethylene, carbon
tetrachloride), high levels of dust or high
air humidity (e.g. laundry rooms).
If no connection to an air exhaust
system is provided for the air supply,
there must be a supply air inlet
measuring:
DE: up to 50 kW: 150 cm
2
per additional kW: : + 2.0 cm
2
CH: QF [kW] x 6= ...cm
2
; but at least
200cm
2
.
Variations may arise as a result of local
regulations.