elco EURON HG 12 User manual

Operating Manual
for authorised specialist
EURON 12 / 18 / 24 / 30 HG
EURON 24 / 30 HSG

Contents
Contents
General Information
Regulations
Conditions of warranty
Quality of heating circuit water
Commissioning
Service and Maintenance
Service manual
Clarifications of Name Plate Notices
Notes
...................................... 2
...................................... 3
...................................... 3
...................................... 3
...................................... 4
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Minimum clearances . . . . . . . . . . . . . . . . . . . . . 9
Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Hydraulic diagrams ...................... 11
Circulation pump . . . . . . . . . . . . . . . . . . . . . . . . 12
Electrical connections . . . . . . . . . . . . . . . . . . . . 13-14
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Connection of air/flue gas pipes . . . . . . . . . . . . 15
Air/flue gas routing . . . . . . . . . . . . . . . . . . . . . . 16
Conducting variants and dimensioning . . . . . . 16
Air/flue gas routing . . . . . . . . . . . . . . . . . . . . . . 17
Conducting variants . . . . . . . . . . . . . . . . . . . . . 17
Flue gas connection ø 80 PPS . . . . . . . . . . . . . 18
Flue gas connection ø 125/80 PPS . . . . . . . . . 19
Concentric Flue gas system
ø125/80 PPS/Alu.. . . . . . . . . . . . . . . . . . . . . . . 20
Concentric Air/Flue gas system
ø125/80 PPS/Alu ....................... 21-22
Annex to Flue gas connection ø 125/80 PPS. . 23
Annex to Flue gas connection ø 80/125 PPS. . 24-25
Connection of separate service water tank . . . 26
Preparation for operation ................. 27-29
Operation with service water tank .......... 30
Parameter adjustment to control unit QAA73 . 31
Preparation for commissioning . . . . . . . . . . . . . 32
Amount of flue gas and adjustment . . . . . . . . . 33-36
Safety check of heating appliance .......... 37
Parameters ............................ 38
Change of Gas . . . . . . . . . . . . . . . . . . . . . . . . . 39-41
Monitoring and checks ................... 42-43
Indication of problem .................... 44-45
Approve appliance cladding . . . . . . . . . . . . . . . 46
Put appliance in service position . . . . . . . . . . . 46
Dismantling burner and heat exchanger...... 47
...................................... 48
...................................... 49
...................................... 50-51
2

General Information, Regulations
Conditions of warranty
General Information
Installation, assembly, electrical
connection and first commissioning
are the responsibility of an authorised
specialist. He/she bears responsibility
for its appropriate execution.
Information for operator
The safety and functioning of the gas
boiler appliance are maintained, if the
annex is regularly serviced by a
heating specialist.
To ensure a regular procedure,
conclusion of a service contract is
recommended.
Prior to installation of the EURON
boiler appliance, the agreement of
the gas supply company and the
district’smaster chimney sweep
must be obtained.
Clarification of our warranty
conditions
Faults arising from the following are
excluded from our warranty:
-inappropriate or incorrect use or
service
-incorrect assembly and/or
commissioning by purchaser or
third party
-introduction of parts of alien origin
-operation of mechanism with
excessive pressure or beyond the
factory power ratings
-Use of inappropriate fuel
-Failureto observe the information
in the manual and the instruction
plate on the burner equipment
Regulations
For safe, environmentally sustainable
and energy saving operation, observe
the following standards:
DIN 1988
-Drinking water pipe installations in
properties, technical regulations for
construction and operation
DIN 18160
-Flue
TRGI (DVGW G600)
-Technical regulations for gas
installations
ATV
-Discharge of condensate from
fireplaces into open waste water
plants
National building regulations TRF
-Technical liquid gas regulations
DVGW G688
-Boiler technology worksheet
DIN 4701
-Regulations for calculation of the
heating needs of buildings
DIN 4751
-Safety engineering fitting of
heating installations with flow
temperatures up to 95°C
Heat AnlV
-Heating installation regulations
for Austria the following also apply:
-ÖVGW TR Gas (G1)
-ÖVGW TR Liquid gas (G2)
-ÖNORM H 5152
Installation of boiler combustion,
Planning aids
-ÖNORM M 7443 Gas appliance
with atmospheric burner element
1, 3, 5, 7
-ÖNORM M 7457 Gas appliance
with mechanically assisted pre-mix
burner
-ÖNORM H 5195-1 heating circuit
water standard
- ÖVGW guidelines
G1 Techn. guidelines for the
installation of low pressure gas
installations
G2 Techn. guidelines for the
installation of liquid gas
installations
G41 Gas boiler combustion sites,
Installation and connection
G4 Heat chamber guidelines
- The appliance is licensed
according to Article 15a B-VG and
in line with combustion installation
regulation VO (FAV 97)
-local building regulations to be
observed
For Switzerland the following also
apply:
-PROCAL
Heatingsmaterialien – Association
of Suppliers of Heating Materials
-SVGW
Schweiz.Verein des Gas- and
Waterfaches - Association of
Swiss Cantonal Insurance
Companies
-BUWAL
Bundesamt for Umwelt, Wald and
Landschaft - Swiss Agency for the
Environment, Forests and
Landscape
-VKF
Vecleaning kantonaler
Feuerversicherungen – Association
of Swiss Cantonal Insurance
Companies
For Belgium the following also
apply:
-NBN D51-003
Country-specific regulations and
standards must be observed in
addition
3

Heating circuit water quality
Heating circuit water quality
The composition and quality of the
system water have a direct influence on
the performance of the whole system
and the life of the boiler.
On first filling and subsequent feed of
the mechanism tap water with pH
balance 7-8 can be used in normal
circumstances, as long as strong
corrosives (chloride content
>150 mg/l) or very hard water
(>14°dH; hardness IV) are not involved.
An analysis of the drinking water can
be requested from the appropriate
water supply company.
If the specific installation volume is
greater than 20 litre/kW heat output
(e.g. through the fitting of a hot water
tank), then the max. appropriate entry
of limescale in the fill-up and make-up
water must be determined according to
the calculations of the VDI Guidelines
2035. Wherenecessary softening of
the fill-up water must be carried out.
No chemical anti-corrosion medium
should be introduced.
For Austria ÖNORM H 5195-1 applies
additionally.
Unidentified water quality and
replacement equipment
Frequently solids and additives are
found in the heating circuit water,
which affect the function and life of
the burner appliance.
Therefore either
• prior to changing equipment heat
up the old system and thereafter
completely discharge
or
•prior to changing equipment,
carefully flush the heating system.
It is best to flush the equipment
immediately before initial heating up.
Underfloor heating
With oxygen-rich hoses underfloor
heating can be connected directly. It is
essential to incorporate a temperature
monitor for the underfloor heating,
which protects the
hoses/flooring from overheating.
If the outlet of the underfloor heating
is not known, (e.g. with replacement
equipment), a system-separator
between boiler and underfloor heating
must be installed by means of a heat
exchanger (auxiliary equipment).
4
Criterion Appropriate Value Effect of Deviation
PH – balance <7-8 Danger of corrosion for boiler components and
heating appliance
Hardness <14 dH -Raised calcium deposits
-Low life expectancy of boiler
Chloride content <150 mg/l Corrosion of alloyed materials

Product description
Overview
5
EURON HG 18/24/30
EURON HSG
EURON HG 12 EURON HS/HSG
Legend
1Air intake openings
2 Collecting pipe air intake/flue
gas connection
3 Manual bleed valve
4 Flue gas discharge connection
5 Burner
6 Stainless steel heat exchanger
7 Condensation drain hose
8 NTC Flow sensor
9 NTC Return sensor
10 3-way switching valve
for service water load
11 Siphon condensation
discharge
12 NTC-Service water sensor
13 Minimum pressure monitor
14 Connecting hose for supply
air damper
15 Service water plate heat
exchanger
16 Filter for cold water entry
17 Service water flow control
18 Hesting manometer
19 Circulation pump with
bleeding device
20 Gas va\ve
21 Collection hose for mixing
air/gas
22 Modulating supply air
compressor
23 Ionisation electrode
24 Ignition electrode
25 Ignition transformer
26 STB flue gas 85 °C
27 Instrumentation opening for
supply air and flue gas

Product Description
Technical Data
6
HG 12 HG 18 HG 24 HG 30
Rated heat capacity at 80° / 60°C kW 2,9-11,3 4,5-17,7 5,8-22,8 6,9-28,1
Rated heat capacity at 50° / 30°C kW 3,1-11,9 4,7-18,5 6,1-23,6 7,2-29,2
Rated heat load kW 3,0-11,5 4,6-18,0 6,0-23,0 7,1-28,5
Normal supply level 75° / 60°C % 107,1 107,4 107,2 107,1
Normal supply level 40° / 30°C % 108,1 108,1 108,6 108,5
Standby loss TK = 70°C % 0,1 0,1 0,1 0,1
Max. output pressure of compressor Pa 90 90 110 90
Water content l 1,5 1,8 1,8 1,8
max. appropriate water pressure bar 3 3 3 3
max. appropriate flow temperature °C 82 82 82 82
Condensate quantity at 40° / 30°C (22 kW) ca. l/h 0,92 2,0 1,58 2,95
Gas connection value Natural gas E / H* (Hi = 34,0 MJ/m3) m3/h 1,22 1,90 2,43 3,01
Natural gas LL (Hi = 29,3 MJ/m3) m3/h 1,41 2,21 2,83 3,50
Liquid gas Propane/Butane
(Hi = 45,6 MJ/kg) kg/h 0,91 1,42 1,81 2,25
Gas flow pressure norm mbar 20 Erdgas / 50 Flüssiggas
17,4/25 Erdgas / 50 Flüssiggas
Gas flow pressure min./max. mbar
Flue gas mass flow rate with Natural gas g/s 4,78 7,81 10,19 12,47
Flue gas temperature °C 64 66 74 71
Gas category DE- II2ELL3B/P
Construction type –Flue gas system (B23 C13x C33x C43x C53x C63x C83x)
Electrical protection rating IPX4D
NOx Klasse 5
Ionisation flow min µA 1 1 1 1
Connections Air/flue gas hose DN 80/125 80/125 80/125 80/125
Heating supply/ return DN 3/4" 3/4" 3/4" 3/4"
Gas connection DN 3/4" 3/4" 3/4" 3/4"
Condensate hose connection mm 28 28 28 28
pH - balance condensate pH 3,2 3,2 3,2 3,2
Electrical connection/power consumptione 230 V / VAC
(auxiliary power) W129 129 129 129
CE – Identification number 0085BP0033
Width x height x depth mm 450 x 750 x 378
Weight ca. kg 31 33 35 37
Noise level Min./Max. load dB (A) 36 - 44
Product variables in calculating installation costs
according to DIN V4701-10:
Rated heat capacity Qn(kW) 11,3 17,7 22,8 28,1
Efficiency at rated heat capacity h100% (%) 97,9 97.7 98,4 97,8
Part load efficiency h30% (%) 108,7 108,0 107,8 107,4
Return temp. on measurement of 30% part load efficiency T30% (C) 30 30 30 30
Standby heat loss qB,70 (%) 2,1 2,3 2,6 2,2
Auxiliary power: Boiler + integrated heating circuit pump PHE (W) 129 129 129 129

Product Description
Technical Data
7
HSG 24 Combi HSG 30 Combi
Rated heat capacity at 80° / 60°C kW 5,8-22,8 6,9-28,1
Rated heat capacity at 50° / 30°C kW 6,1-23,6 7,2-29,2
Rated heat load kW 6,0-23,0 7,1-28,5
Normal supply level 75° / 60°C % 107,2 107,1
Normal supply level 40° / 30°C % 108,6 108,5
Standby loss TK = 70°C % 0,1 0,1
Max. output pressure of compressor Pa 110 90
Service water temperature max./min. °C 60/35 60/35
Hot water quantity ∆T=40°C l/min./60°C 8,0 10,0
Lowest how water withdrawal l/min./60°C 2,5 2,5
Service water pressure max./min. bar 6/0,8 6/0,8
Water content l 1,8 2,5
max. appropriate water pressure bar 3 3
max. appropriate flow temperature °C 82 82
Condensate quantity at 40° / 30°C (22 kW) ca. l/h 1,58 2,95
Gas connection value Natural gas E / H* (Hi = 34,0 MJ/m3) m3/h 2,43 3,01
Natural gas LL (Hi = 29,3 MJ/m3)m3/h 2,83 3,50
Liquid gas Propane/Butane (Hi = 45,6 MJ/kg) kg/h 1,81 2,25
Gas flow pressure norm mbar 20 Erdgas / 50 Flüssiggas
17,4/25 Erdgas / 50 Flüssiggas
Gas flow pressure min./max. mbar
Flue gas mass flow rate with Natural gas g/s 10,19 12,47
Flue gas temperature °C 74 71
Gas category DE - II2ELL3B/P
Construction type - Flue gas system (B23 C13x C33x C43x C53x C63x C83x)
Electrical protection rating IPX4D
NOx Klasse 5
Ionisation flow min. µA1 1
Connections Air/ Flue gas hose DN 80/125 80/125
Heating supply/return/Gas connection DN 3/4" 3/4"
Condensate hose connection mm 28 28
pH - balance condensate pH 3,2 3,2
Electrical connection / power consumption 230 V / VAC W 129 129
CE – identification number 0085BP0033 0085BP0033
Width x Height x Depth mm 450 x 750 x 378
Weight ca. kg 35 37
Noise level Min./Max. load dB (A) 36 - 44
Product variables in calculating Installation costs
according to DIN V4701-10:
Rated heat capacity Qn(kW) 22,8 28,1
Efficiency at rated heat capacity h100% (%) 98,4 97,8
Part load efficiency h30% (%) 107,8 107,4
Return temp.on measurement of 30% part load efficiency T30% (C) 30 30
Standby heat loss qB,70 (%) 1,6 2,2
Auxiliary power: Boiler + integrated heating circuit pump PHE (W) 129 129

Product description
Dimensions
8
EURON12 / 18 / 24 HG
EURON 30 HG only for Belgium
Legend
ASupply 3/4"
CGas intake 3/4"
EReturn 3/4"
GCondensation discharge 28 mm
HSiphon
(*) Water connection
(**) Gas connection
EURON 24 HSG Combi
EURON 30 HSG Combi only for Belgium
Legend
ASupply 3/4"
BHot water outlet 1/2"
CGas intake 3/4"
DCold water intake1/2"
EReturn 3/4"
GCondensation discharge 28 mm
HSiphon
(*) Water connection
(**) Gas connection

Installation
Minimum clearances
9
450
210 50 50
300
305
336
7 672 72
750 155
min. 300
max. 350
550
840
450
210
400*
min. 2045 max. 20959
125
80
min. 2045
max. 2095
min. 1819 max. 1869
min. 1147 max. 1197
120 Liter
150 Liter **
Minimum clearances
For servicing of heating appliance the
minimum clearances specified in the
diagram must be observed.
Wall mounting
Mount the heating appliance with the
aid of the positioning device and a
spirit level*.
Affix the metal bracket to the wall by
means of the expansion anchor to be
used and hang the heating appliance.
*with fitted expansion tank
** with 150 l tank
vertical mass + 178 mm

Installation
Connections
Gas connection
The heating appliance is designed to
belong to the following categories for
the use of gas types.
Ensure by means of the name plates
to be found on the packaging and the
appliance that the heating appliance is
intended for the country in which it is
to be installed and that the gas
category corresponds to one of the
appropriate categories in the intended
country.
The gas inlet must be manufactured
and measured according to the
relevant specific regulations as well as
the maximum output of the equipment;
check also the correct calculation and
conection of the stop valve.
Before installation, the gas line should
be thoroughly cleaned, so that any
residues do not impair the functional
efficiency of the heating appliance.
Over and above this, it should be
further guaranteed that the type of gas
used is suitable for the heating
appliance (see name plate in the
interior of the appliance). Check the
required gas pressure (natural gas or
liquid gas).
Water connection
All connections for water and gas are
evident from the illustration (page 8).
Ensure that the highest pressure of the
water conduit network does not
exceed 6 bar; with highest pressure
values a pressure reducing valve must
beinstalled.
The minimum pressure needed by the
appropriate devices for processing of
hot service water is about 0,2 bar.
On sizing the pipes and the heating
element of the appliance, the value of
the remaining conveyor height level
must be considered depending on the
required flow in accordance with the
values represented in the curve
picture (page 12) of the circulation
pump.
With combi appliance (type HSG) flow
limiters are built into the water switch.
This provides for a constant flow of
service water
(EURON 24 HSG = 8 Litre/Minute
EURON 30 HSG (only for Belgium)
=10 Litre/Minute).
Underfloor heating
For underfloor heating, attach a
suitable safety thermostat to the
supply.
-Remove the bridge from the clamps
(X3-01), which are situated on the
left of the instrument panel housing,
and attach the safety thermostats
for the floor heating to it.
Too high a flow temperature leads to
an operating lockout of the heating
appliance both in the service water
and in the heating operation; the error
code "110" appears on the display.
Operation is resumed by pressing the
RESET "6" key (page 28), after the
flow temperaturehas dropped.
10
Country Categories
AUSTRIA II2H3B/P
BELGIUM
I2E(S)B
I3B/P
I3P
SWITZERLAND II2H3P
II2H3B/P
GERMANY II2ELL3P
II2ELL3B/P
DNMK/SWED/NOR II2H3P
SPAIN II2H3P
II2H3B/P
FRANCE II2Er3P
II2Er3B/P
GB II2H3P
II2H3B/P
ITALY IT II2H3B/P
II2H3P
IE IE II2H3P
II2H3B/P
LUXEMBOURG II2E3P
II2EP
HOLLAND II2L3P
PORTUGAL II2H3P
II2H3B/P
CZECH II2H3P
HUNGARY II2H3P
POLAND II2H3P

Installation
Hydraulic diagrams
11
EURON HG
EURON HSG
EURON HG / HSG
Legend
1Manual bleed valve
2 Stainless steel heat exchanger
3 Burner
4 Collector hose for mixing air/gas
5 Modulating ventilator
6 Düse/injector/duct?
7 Gas valve
8 NTC-Appliance supply sensor
9Motor of 3-way valve
10 3-way valve
11 Minimum pressure monitor
12 NTC-Service water sensor
13 Service water plate heat
exchanger
14 Service water flow control
15 Cold water filter
16 Automatic heating bypass
17 3 bar safety valve
18 Manometer
19 Circulation pump
20 Automatich bleed valve
21 Condensate siphon
22 NTC-appliance return sensor
23 Collection hose flue gas
connection
24 Expansion tank (optional)
25 Flue gas STB
ASupply 3/4"
BHot water outlet 1/2"
CGas intake 3/4"
DCold water intake1/2"
EReturn3/4"

Installation
Circulation pump
12
18/24 HSG/HG 30 HSG/HG
only for Belgium 12 HG
Through flow
l/h
V3
(mbar)
V2
(mbar)
V3
(mbar)
V2
(mbar)
V3
(mbar)
V2
(mbar)
1300 152
1200 127,5 195
1100 162,5 119 241
1000 221 190 283 91
900 280 83 252 332 122
800 325 142,5 308 102 367 171
700 373,5 207 361 165 408 200
600 419,5 269 409 231 445 248
500 459,5 320 463 287 476 295
400 491,5 365 503 343 510 341
300 522 408,5 548 394 542 383
200 547 440 561 440 568 422
100 568 470 588 467 587 452
0 584 494 601 491 600 476
Remaining conveyor height level of the circulation pump at pump stages 2 + 3
Graphic representation of the remaining conveyor height level of the circulation pump at pump stages 2 + 3
Legend
V22.Pump stages
V3 3. Pump stages
00
100
200
300
400
500
600
700
0 200 400 600 800 1000 1200 1400 l/h
mbar
00
100
200
300
400
500
600
700
0 200 400 600 800 1000 1200 1400 l/h
mbar
Stage 3
Stage 2
12 HG
12 HG
30 HG/HSG
18/24 HG/HSG
18/24 HG/HSG

Installation
Electrical connections
General Information
Electrical installation and connection
work are carried out exclusively by the
specialist electrician. The VDE /ÖVE
/SEV - and EVU instructions and
regulations must be observed.
Mains connection and connection
of customer wiring
The appliance is designed for firm
connection and connection cables
NYM 3 x 1.5 mm2 or H05W-F 3 x 1
mm2. The connection cable should
not be larger than 8 mm in diameter.
Boiler equipment and switch bay are
wired.
The mains connection is made at the
strip terminal of the equipment. The
boiler equipment must be separable
from the mains by suitable means. In
addition switches with a contact
aperture of > 3 mm or automatic
cutout are usable
Mains voltage: 230 V, 50 Hz
Laying of mains connection cable
All external connection cables should
be stripped to a max. 30 mm. The
conducting cable from the mains lead
cleat/cord grip to the terminals/clamps
must be tautened when sliding out of
the mains lead cleat/cordgrip before
the earthing conductor.
The length of the cables must be
designed accordingly. Additional
cables (e.g. for system integrations),
which are attached to the strip
terminal in the appliance, must be
secured with mains lead cleat/cord
grip. Only the authorized specialist
carries out an exchange of the
electrical supply cable.
For connection of the heating
appliance, use the earth cable
(yellow/green), which is longer than
the supply wires (see illustration).
Multiple plug sockets, extension cable
and adapter are not appropriate. For
earthing of the appliance in no
circumstances use the hoses of the
water supply installation, or heating or
gas installation.
The appliance is not protected against
damage from lightning strikes. If the
mains fuses are to be changed, use
quick fuses with 2 A.
Remote control (QAA73)
- Connection (1) of the remote
control must be via a cable $ with
at least. 2 x 0,5 mm2.
- The "Bus" cable of the remote
control (20-30 V) must be installed
separately from the cables with
230 V/50 Hz. Attach the remote
control to the X10-01 connector
(use insulated cable).
- If the QAA 73 remote control is
used, the thermostat bridge must
be disconnected from the
X10-02 (2)
Ambient/external sensor (QAC34)
-Connection (3) of the
ambient/external sensor is made
by means of a cable with at least
2x0,5 mm2,so that a length of
50 m is achieved.
-The sensor should preferably be
positioned at a height of 2 -2,5 m
above the floor and aligned
towards the north; in no
circumstances must it be directly
exposed to sunlight.
-Connect the ambient/external
sensor to the X10-06 (3)
connector (use insulated cable).
Before each operation, cut the
power to the heating appliance with
the aid of the double-pole external
heater emergency switch.
Safety thermostat for underfloor
heating
-Remove the bridge from the
clamp, which can be found on the
instrument panel housing, and
attach in its place the safety
thermostats for the onderfloor
heating
-Connecting terminals/clamps to
circuit board connector X3-01.
13
3
2
1

Installation
Electrical connections
14
Compressor motor
Service water
Flow control
Flue gas sensor Temperature sensor for hot water
Sensor appliance return Sensor appliance supply
External/ambient sensor QAC34
Disconnect bridge at connection QAA73
Remote control QAA 73
Earthing
Transformer
Pilot air valve
Ionisation electrode
Ignition transformer
230 VAC
Temperature limiter FBH
Gas solenoid 230 VAC
heating
hot water sanitation
Service water
230 VAC
Circulation pump
HK-BL 230 VAC
Circuit breaker
Power supply
~ 230V 50 Hz
Safety
NTC-Temperature sensor
Hot water tank
Minimum pressure monitor heating operation
Operator/user display
AGU 2.303A172
Ignition
electrode

Installation
Flue gas and supply air connection
The EURON is suitable for operational
modes both dependent and not
dependent on compartment air. The
flue gas hose connected must be
removable.
With all flue gas systems, it must be
ensured that no short circuit/bypass
occurs between supply air and flue gas.
Hose extensions must only be
installed vertically, to avoid the
formation of a water pocket.
For flue gas safety the EURON is
fitted with an flue gas safety
temperature limiter (set at 85°C),
which must not therefore be provided
by the customer.
The combustion air supply must be
ensured. It should be provided
according to the standards in force.
Local regulations are to be observed.
In principle we recommend
the compartment air-independent
operating mode. There is often a
danger of corrosive steam, in
particular in a laundry or workshop, a
hair salon, in areas with electroplating,
printing or metalworking.
In such cases the supply air must be
supplied from a suitable outside place.
Condensate connection
For every m3of natural gas burnt, 0.7
to 1.0 litres of condensate
accumulates as a consequence of the
very high utilisation of energy.This
must be discharged.
For the discharge, plastic tubes areto
be used at least as far as discharge
into the collector hose. The
condensate must be able to run off
freely into a funnel (or neutralization
tank). Thus a back-up of condensate
into the boiler is avoided.
The condensate discharge must have
no firm connection with the sewage
system and occurs via a customer-
installed funnel siphon in the domestic
sewage system.
This also applies for the condensate in
the flue gas conduit and the flue.
Local regulations must be observed.
Prior to commissioning the siphon in
the EURON must be filled with water
(this is easiest as 0,5 l water is filled
via the flue gas hose).
Connection to air/flue gas routing
For concentric air/flue gas routing only
original ELCO Klöckner accessory
partsmust be used.
Separation of the air/flue gas routing
from combustible materials is not
necessary, as with rated heat capacity
no temperatures higher than 80°C occur.
The air/flue gas routing must not be
taken through other equipment/
plant areas.
If gas burning appliance is installed on
an exterior wall (air/flue gas routing via
exterior wall), the rated heat capacity
of the heating operation must be
reduced to below 11 kW.
If levels are bypassed via the pipes for
the combustion air supply and flue
gas routing in the premises, the pipes
outside the installation area must lead
into a pit with a fire resistance period
of at least 90 minutes and with
residential buildings of a minimum
Hoehe/depth/height? of at least
30 minutes.
If the gas appliance are installed in
areas where the roof structure is
simply found above the ceiling/floor,
the following specifications apply:
If a fire resistance time is required for
the floor/ceiling, the pipes for the
combustion air supply and flue gas
routing in the area between top
floor/ceiling and roofing must have a
covering that also has this fire
resistance time and is made of non-
flammable material.
If no fire resistance time is required for
the floor/ceiling, the pipes for the
combustion air supply and flue gas
routing must be laid from top
floor/ceiling to roofing in a pit
of non-flammable, stable material or in
ametal protective pipe (mechanical
protection).
Flue gas pipes must be able to be
checked on their clearance.
In the installation area at the least a
corresponding revision and/or test
opening must be allowed in
agreement with the appropriate district
master chimney sweep.
Flue gas connections are made via
sleeve/bush and seal. Sleeves/bushes
must always be arranged against the
direction of flow of the condensate.
The air/flue gas routing must be
mounted with 1-3% angle to the
burner appliance.
Connection to water-resistant
air/flue gas flue (AZ), flue gas flue
or flue gas appliance
Flues and flue gas installations must
be licensed by the building authorities
for burner fireplaces (DIBT approval).
Sizing is by the calculation tables
according to the flue gas value group.
Amaximum of three 90° baffles may
be installed. For flues 0 Pa must be
applied to calculation of the supply
pressure.
Connection to water-resistant flue
gas flue or flue gas appliance B23
for compartment air-dependent
operation
Direct air/flue gas routing may be no
longer than 2m bei with piping to a
flue gas flue. A maximum of three 90°
baffles may be installed. The flue gas
flue must be checked by the DIBT and
approved for burner operation.
15
General
Connection of air/flue gas pipes

Installation
For the realisation of concentric
air/flue gas systems the use of
original accessory parts by ELCO-
Klöckner is recommended.
Kits for connection of the air/ flue gas
pipes are supplied separately from the
appliance depending on the various
installation options.
The heating appliance is preset for
connection to a concentric air/flue gas
system.
Connection of the heating appliance
to the flue is effected for all appliance
with the aid of concentric hose pipes
ø80/125 or via double hose systems
ø80/80.
For each 90° change of alignment 1,5
mof the total hose length must be
deducted.
The additional resistance obtained
thereby must be taken into account in
the previously mentioned sizing.
16
Air-flue gas routing
Conducting variants and Dimensioning
Type of flue gas connection
Max. length of flue gas
pipes (m)
Pipe diameter (mm)
24 HSG/HG (30 HSG/HG*)
Minimum Maximum
concentric
systems
C13x 0,7 15,7 ø80/125
B33 0,7 15,7 ø80/125
Double hose
systems
C13x C33x C43x 0,5=S1 : 0,5=S2 20=S1 : 20=S2 ø80/80
C53x C83x 1=S1 : 0,5=S2 1=S1 : 32=S2 ø80/80
B23 0,5=S2 33=S2 ø80
Type of flue gas connection
Max. length of flue gas
pipes (m)
Pipe diameter (mm)
12 HG/18HG
Minimum Maximum
concentric
systems
C13x 0,7 15,7 ø80/125
B33 0,7 15,7 ø80/125
Double hose
systems
C13x C33x C43x 0,5=S1 : 0,5=S2 20=S1 : 20=S2 ø80/80
C53x C83x 1=S1 : 0,5=S2 1=S1 : 32=S2 ø80/80
B23 0,5=S2 33=S2 ø80
Conducting variants and sizing
*) only for Belgium
S1 Combustion air is equivalent to the length in metres of the air intake hose
S2 Flue gas routing is equivalent to the length in metres of the flue gas hose

Installation
Air/flue gas routing
Conducting variants
B23 Flue gas connection in flue, intake of air from the environment.
End piece of flue gas connection via roof.
Combustion air issued to the environment, ø 80 PPS
B33 Flue gas connection in flue, intake of air from the environment
End piece of flue gas connection via roof
Combustion air issued to the environment, ø 80/125 PPS/Alu
Compartment air-independent, D 80/125 PPS/Alu white
C13X Flue gas connection and air intake via exterior wall in the same
pressure range.
C33x Flue gas connection and air intake via flue in the same pressure range.
Vertical end piece of flue gas connection.
C43x Air intake and flue gas connection via a flue system, integrated in
the construction.
C53x Air intake and flue gas connection in open air in range with varied
pressure.
Vertical end piece of flue gas connection.
C63x Specially designed appliance for connection to separate approved
air/flue gas systems.
C83x Air intake outside building, flue gas connection in flue.
17

Installation
18
Flue gas connection ø 80 PPS
Combustion air issued to the environment
B33
-Flue gas routing via roof
Basic kit
POS Description
1T-Connection with 87,5°,
with covering
2 Hose with sleeves 0,5 m
Assembly instructions
3
4
5
6
7mvertical hose kit
consisting of:
-bracket
-Connecting elbow with 87,5°
- 3 hoses with sleeves 1,95 m
-1hose with sleeve 1 m
-3spacers
-Cowl
Hose with sleeve 1 m
Hose with sleeve 1,95 m
10
Connection piece with
inspection opening, covering
attached by screws
11 Elbow 30°
Elbow 45°
Elbow 87,5°
5 Spacer (all must be 2 m)
When connecting heating appliance
and flue, condensate-resistant
products must be
used. For lengths and realignment of
the circuit points the table on page
16, conducting variants, applies.
The flue must correspond to the
instructions of the DIBT and be
licensed for the flue gas connection of
burner appliance.
The air intake opening for ventilation
of the room from outside must have a
size corresponding to one of the
guidelines in force.

19
Installation
Flue gas connection ø 125/80 PPS
Combustion air issued to the environment
B33
-Flue gas routing via roof
Basic kit
POS Description
1a Flue gas connection for B23
1b T-connection with 87,5°,
with covering
2 Hose with sleeve
Assembly instructions
3
4
5
6
7mvertical hose kit
consisting of:
-Connection base
-Connecting elbow with 87,5°
-3 hoses with sleeves 1,95 m
-1 hose with sleeve 1 m
-3 spacers
-Cowl
Hose with sleeve 1 m
Hose with sleeve 1,95 m
10
Connection piece with
inspection opening, covering
attached by screws
11 Elbow 30°
Elbow 45°
Elbow 87,5°
5 Spacer (all must be 2 m)
When connecting heating appliance
and flue, condensate-resistant
products must be used. For lengths
and realignment of the circuit points
the table on page 16, conducting
variants, applies.
The flue must correspond to the
instructions of the DIBT and be
licensed for the flue gas connection of
burner appliance.
The air intake opening for ventilation
of the room from outside must have
asize corresponding to one of the
guidelines in force.

20
Installation
Concentric flue gas system ø 125/80 PPS/Alu
C13x
- Burner circuit completely
insulated from installation
environment and surrounded by
combustion air.
-Flue gas connection and air
intake via external wall in the
same pressure range.
Basic kit
POS Description
1T-Connection with covering 87,5°
2 Hose 0,5 m
3 Connections for exterior wall
42Clamps
Hose 1 m
Elbow 87,5°
Elbow 45°
Connection piece with inspection
opening, Covering
attached by screws
4Covering ø 125 for wall white
including fixing screws
Fixing clamp DN 125
Adjustable wall clamp DN 125
(Separation wall - centre of
hose 115 - 170 mm)
Extension for wall clamp
Separation wall – centre of hose
165 -228 mm or
215 - 275 mm or
270 - 333 mm
When installing gas burner appliance
with flue gas connection via external
walls, the nominal heat output must
be below 11 kW.