Warmhaus EWA 20 User manual

CONDENSING COMBI BOILER
INSTALLATION MANUAL
EWA 20
EWA 24

EWA 20
EWA 24

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INDEX
DEAR WARMHAUS CUSTOMER ...........................................4
GENERAL WARNINGS ..................................................................4
GENERAL WARRANTY CONDITIONS.......................................4
BOILER GAS CATEGORIES & DESTINATIONS ....................... 5
GAS LEAKAGES .............................................................................. 6
INSTALLATION PERSONNEL SECTION................................ 7
CONTENTS OF PACKING BOX.................................................... 7
COMBI INSTALLATION RULES.................................................... 8
General Rules for Installation Places of Combi Boilers ....... 8
Places Not Suitable for Installing
Hermetical Combi Boilers ............................................................ 8
Wall Installation of Combi and Selecting
the Installation Place ..................................................................... 8
Dimensions and Connections...................................................... 9
Natural Gas and LPG Connection
(Device Category I2H, II2H3P)........................................................... 9
Flammable Gas Quality................................................................. 9
In Case of Using LPG Tank........................................................... 9
In Case of Using Bottled Gas ...................................................... 9
Filling the siphon for Condensation Line............................... 10
Installation at Partially Protected Exteriors.......................... 10
Electrical Connections................................................................. 10
Optional Controls: Room Thermostat,
Outside Sensor and Others .........................................................11
HYDRAULIC INSTALLATION RULES ........................................13
Radiator and DHW Installations................................................13
Filling/Emptying Radiator Installation ....................................13
Circulation Pump ...........................................................................15
Controls for Initial Operation of Combi...................................15
Parts Comprising the Combi ......................................................16
COMBI FLUE CONNECTIONS.....................................................16
Exhaust Gas Flue Pipe Set and Accessories Connection ..16
COMBI FLUE CONNECTION TYPES..........................................17
Peripheral Distances of Flue Output Connections...............19
Installation with Horizontal Flue Sets......................................19
Installation with Vertical Flue Sets (Ø 60/100 mm)............21
Twin Flue Kits Ø 80/80 (Hermetic) Flue Type Use .............21
Recommendations of Plume Kit Installation ........................25

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Designation: Used gas types & Countries
Object Manufacturer Type-model / Technical data Mark (s) of conformity
Boiler gas categoires & destinations Warmhaus all wall-hung boilers granted
Gas categories for Warmhaus boilers has been applied on CE certification on SZU Test / BRNO given bellow;
-
the appliance category(ies) in relation to the direct countries of destinationhas been spesified EN 15502-1; GAR Certificate E-30-00300-18 product ID Nr. CE-1015CT0615
- the country(-ies) of destination, in accordance with EN ISO 3166-1;
- the gas supply pressure in millibars, if several normal pressures can be used for the same gas group. They are indicated by their numerical value and the unit “mbar”
Document for
conformity
approved by SZU
test
Appliance
Categories Gas Type
Gas Inlet
Supply
Pressures
Used
Gas
EWA 20
EWA 24
Countries of Destination**
YES I 2H Natural Gas 20 mbar G20 Available AT, BG, CH, CZ, DK, EE, ES, FI, GB, GR, HR, IE, IT, LT,
LU, LV, NO, PT, RO, SE, SI, SK, TR
YES I 2H Natural Gas 25 mbar G20 Available HU
YES I 2E Natural Gas 20 mbar G20 Available DE, LU, PL, RO
YES I 2E+ Natural Gas 20 mbar G20 Available BE, FR
YES I 2E(S) Natural Gas 20 mbar G20 Available BE
YES I 2ELL Natural Gas 20 mbar G20 Available DE
YES II 2H3P Natural Gas 20 mbar G20 Available CH, CZ, ES, GB, GR, HR, IE, IT, LT, PT, RO, SI, SK
YES II 2H3+ Natural Gas 20 mbar G20 Available CH, CY, CZ, ES, GB, GR, IE, IT, LT, PT, SI, SK, TR
YES II 2E+3+ Natural Gas 20 mbar
25 mbar G20 Available BE, FR
YES II 2E+3P Natural Gas 20 mbar
25 mbar G20 Available BE, FR
YES II 2H3B/P Natural Gas 20 mbar G20 Available AT, CH, CY, CZ, DK, EE, FI, GR, IT, LT, NO, RO, SE,
SI, SK
YES II 2E3B/P Natural Gas 20 mbar G20 Available DE
YES II 2ELL3B/P Natural Gas 20 mbar G20 Available DE
YES I 2L Natural Gas 25 mbar G25 Available NL
YES I 2E+ Natural Gas 25 mbar G25 Available BE, FR
YES I 2ELL Natural Gas 20 mbar G25 Available DE
YES II 2L3P Natural Gas 25 mbar G25 Available NL
YES II 2L3B/P Natural Gas 25 mbar G25 Available NL
YES II 2ELL3B/P Natural Gas 20 mbar G25 Available DE
YES I 3+ Buthane Gas 28-30 mbar
37 mbar G30 Available BE, CH, CY, CZ, ES, FR, GB, GR, IE, IT, LT, PT, SI, SK
YES I 3B/P Buthane Gas 30 mbar G30 Available BE, CY, CZ, DK, EE, FI, GB, GR, HU, HR, IT, LT, NL, NO,
RO, SE, SI, SK, TR
YES I 3B/P Buthane Gas 50 mbar G30 Available AT, CH, DE, FR, SK
YES II 2H3+ Buthane Gas 28-30 mbar
37 mbar G30 Available CH, CY, CZ, ES, GB, GR, IE, IT, LT, PT, SI, SK, TR
YES II 2E+3+ Buthane Gas 28-30 mbar
37 mbar G30 Available BE, FR
YES II 2H3B/P Buthane Gas 30 mbar G30 Available CY, CZ, DK, EE, FI, GR, IT, LT, NO, RO, SE, SI, SK
YES II 2H3B/P Buthane Gas 50 mbar G30 Available AT, CH, SK
YES II 2E3B/P Buthane Gas 50 mbar G30 Available DE
YES II 2L3B/P Buthane Gas 30 mbar G30 Available NL
YES II 2ELL3B/P Buthane Gas 50 mbar G30 Available DE
YES I 3P Propane LPG 37 mbar G31 Available BE, CH, CZ, ES, FR, GB, GR, HR, IE, IT, LT, NL, PL, PT,
SI, SK, TR
YES II 2H3P Propane LPG 37 mbar G31 Available CH, CZ, ES, GB, GR, HR, IE, IT, LT, PT, RO, SI, SK
YES II 2L3P Propane LPG 37 mbar G31 Available NL
YES II 2E+3P Propane LPG 37 mbar G31 Available BE, FR
** EN 437+A1:2009, Codes for the representation of gases and names of countries and their subdivisions; Part 1: Country codes (ISO 3166-1:2006)
BOILER GAS CATEGORIES & DESTINATIONS

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1. INSTALLATION PERSONNEL SECTION
I. Installaton Scheme (Fgure 1)
II. User's Gude (Fgure 2)
III. Connecton Accessores (Fgure 3)
a. 1 throttle screw (nstalled at flue output).
b. 2 hanger screws
c. 2 Dowels
IV. Hanger Plate (Figure 4)
V. Exhaust Gas Flue Set (Figure 5)
Figure 1 Installaton scheme
Figure 4 Hanger Plate
Figure 3 Connecton accessores
Figure 2 User's Gude
Figure 5 Exhaust gas flue set
471
1000
GAS
G3/4" G3/4"G3/4"
80 mm 65 mm 65 mm 64 mm
725 mm
592 mm
422 mm
G1/2"G1/2"
75 mm 73 mm
Ø110 mm
114 mm
(OPTIONAL)
Ewa
Priwa ERP / Priwa ERP Plus
Priwa / Priwa Plus
Enerwa / Enerwa Plus
150.11.606.000078
Do not leave packng materals (plastc, nylon, bags, etc.) at places
to be reached by chldren for preventng any dangers for health.
1.1. CONTENTS OF PACKING BOX
Warmhaus s sold as two boxes wth comb and flue set. Comb box contans below lsted materals and small box contans exhaust gas flue ppes.

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1.2. COMBI INSTALLATION RULES
1.2.1. General Rules for Installation Places of Combi Boilers
No restrcton s avalable for places where Hermetc (C typ) comb s nstalled
(devces may be nstalled regardless the room volume and ventlaton type).
Also, they may be nstalled at partally protected areas such as balcony,
terrace provded that beng placed n protectve cabnets and takng requred
precautons aganst frost of nstallaton water.
Comb should be soundly nstalled to buldng wall. Flexble connecton
pece should be used between the comb and gas lne. Flex lengths to be
used n A, B and C type devces should not exceed dmensons allowed by
local gas authortes. Flue outputs of hermetc combs must be connected to
places open to exteror and havng ar crculaton. Installaton (postons of
ppe output openng based on varous forms, vertcal, horzontal mnmum
dstances, cross secton areas of channels f gven to channels, etc.) must
be carred out accordng to regulaton standards, current legslaton and
n complance wth local techncal regulatons and the requred techncal
procedures.
1.2.2. Places Not Suitable for Installing Hermetical Combi Boilers
Starways of Buldngs,
• Corrdors avalable for general use, ventlaton ways and shafts, lofts, attcs,
emergency ext doors, cellars, hall and smlar places creatng common use
areas,
• Yards between buldngs,
• Narrow cornce dstances,
• Over flue walls,
• Enclosed balcones,
• Open balcones (except beng located n the cabnet and permsson of the
devce company),
• Below protrudng structure parts preventng exhaust gas output,
• Places those may be drectly subjected to wnd resstance,
• It s forbdden to nstall Hermetc comb (C type) to openngs provdng
clean ar to other unts!
1.2.3. Wall Installation of Combi and Selecting the Installation Place
• It should be controlled and ensured that the wall nstallaton of the comb
s sound and relable.
• The hanger plate gven as standard wth the comb should be nstalled
accordng to the technque to full or sem-full brck wall accordng to
nstallaton scheme and wth connecton screws and not to be used for
other purposes.
• In case of usng derent materals for nstallaton, comb shall be out of
the warranty scope.
• If the wall of nstallaton s not a brck wall, ntally the relablty of support
system should be controlled.
• Comb should be nstalled on a wall resstant to fre.
• NOTICE: Combustble and corrosve materals:
• Chemcally aggressve substances can corrode the applance and
nvaldate any guarantee.
• Do not store or use any combustble materals (paper, thnners, pants,
propellants, cleanng agents etc.) Keep the dstance mnmum 50 mm.
• Insde the cupboard contanng the applance or wthn the vcnty of the
applance.
• 1,8 - 2,2 m heght s recommended for nstallaton of the comb hanger
plate.
• For places wth lmted nstallaton place, comb should be nstalled
at mnmum 30 cm heght from ground and by leavng at least 5 cm
dstances from both sdes n order to allow easy nterventon of the servce
techncan.
• Comb nstallaton must not performed n envronments contanng
explosve, flammable substances and acd fumes
• Installaton cannot be made at near or on ovens, radators or heater
devces.
• Hermetc combs can be nstalled n furntures but at least 5 cm each
should be left at both sdes.
• If to be nstalled on the ktchen table or the set, at least 30 cm dstance
should be left under the comb.
• It s recommended to connect the output to dran lne wth a transparent
hose aganst the possblty of water leakage from Safety Valve of comb
durng nstallaton. If ths s not possble; do not place electronc devces,
delcate, corrodble devces, components and tools under the comb.
• Do not place/use any furntures below the comb due to above mentoned
reasons.
Make sure that there are no lquds or nflammable materals n the
mmedate vcnty of the boler.
It s necessary to leave a spesfc dstance 1.0 mt between the
heatng devce and the buldng materal contanng combustble materal
even the maxmum allowable temperature value of 85 °C n the rated heat
capacty of the applance s not exceeded.
Figure 6 Boler mnmum dmensons n the cabnet *Mnmum clearances requred for servcng

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Figure 8 Comb bottled gas connecton
1.2.4. Dimensions and Connections
1.2.5. Natural Gas and LPG Connection (Device Category I2H, II2H3P)
Our comb devces are manufactured to be operated wth methane gas
(G20) and L.P.G. Gas supply ppes should be equal to or hgher than 3/4"G
comb connectons. Pror to makng the gas connecton, a studous nternal
cleanng should be made to all fuel supply nstallaton ppe furnhshngs as
possble wastes may dstort smooth operaton and relablty of the comb.
It should be controlled whether the gas dstrbuted from the man lne s as
envsaged (see the table on the comb devce).
In case of havng derences, an nterventon should be made on the comb
and converted to other gas type (consult our authorzed servces n case
of gas change). Also, n case of beng nadequate, the network dynamc
pressure (methane or LPG) to be used for supplyng the comb should be
controlled regardng the mpact on comb strength and dcultes possble
for the user. Ensure the correctness of gas valve connecton. Flammable gas
supply ppe should be able to supply correct adequate gas amount to the
boler when the comb s at full power and be projected and szed accordng
to local gas company specfcaton and nstructons n order to guarantee the
devce ecency. Connecton system should comply wth legal regulatons.
1.2.6. Flammable Gas Quality
The comb s desgned to be used wth pure fuel not contanng any foregn
substances; therefore, requred flter systems must be avalable n the gas
supply lne (for ensurng purfcaton of the fuel).
1.2.7. In Case of Using LPG Tank
LPG use s recommended for heat requrements over 24 kW. New LPG stock
tanks may contan settled gas resdues (ntrogen) however, that pauperses
the mxture assgned to that devce and cause abnormal operatons.
- Varous alloy layers may be formed durng stockng LPG gas n tanks
dependng on mxture compostons. That causes a change n heatng power
of mxture assgned to the devce and changes ecency of the devce.
1.2.8. In Case of Using Bottled Gas
• 300 mmSS pressurzed hood should be used for LPG.
• 500 mmSS hood should not be used.
• 370 mmSS pressurzed hood should be used for Propane.
• Do not place tubes at cold places havng rsk of snow for preventng frost
durng wnter months.
• Do not place tubes n hot places contanng ovens, freplaces for preventng
dangers!
• Do not make connecton wth sngle tube and use LPG collector set for
double, trple uses.
• The dstance between the collector and tube should be maxmum 125 cm.
• Copper ppe nstallaton should not used for dstances longer than 125 cm.
• Hose connecton ends should be tghtened wth clamp and no other tools
should be used.
• Gas nstallaton rules wth use of LPG tank and ndustral tubes should
comply wth local standards and to be performed by expert nstallaton
teams and certfed by the company undertakng the constructon. In case
of falng to fulfl these condtons, comb shall not be commssoned by
Warmhaus Authorzed Servces.
Figure 7 Ewa comb dmensons and connectons
Warmhaus Ewa
A: Central heatng flow
B: Domestc hot water outlet
C: Gas nlet
D: Domestc hot water nlet
E: Central heatng return
F: Fllng valve
G: Manometer
H: Pressure relef valve outlet
I: Dran pont
J: Condansate dran
K: 230V 50HZ AC
LPG LPG
Ball Valve
COLLECTOR
370 mmSS
2 kg
Hood
12 kg or
24 kg
LPG TUBE

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1.2.10. Installation at Partially Protected Exteriors
Installation instructions: Ths comb can be nstalled n partally protected
exterors. Partally protected place means that the comb s located at places
wthout drect exposure to atmospherc factors and precptatons (ran,
snow, etc.).
Frost protection: Comb devce s equpped wth a system that prevents
frost by automatcally actvatng the pump and boler when the nternal
water s lower than 5°C.
Frost protecton functon only depends on below gven condtons:
- If the comb s correctly connected to gas and electrcal sources;
- If the comb s suppled from gas and electrcty sources (f the man swtch
s open) n a fxed way;
- If the Comb s not n falure stuaton due to lack of gnton;
- In order to mantan crculaton of nstallaton water, nstallaton valves and
radator valves under the comb must be open.
Under these condtons, the comb s protected aganst frost up to -5°C
envronment temperature.
Lowest Temperature -5°C. Incasethecombsnstallednan envronment
wth a temperature lower than -5°C, and gas supply s nterrupted or passed
nto falure due to falng to make gnton, Frost Preventon System shall not
be actvated and frost/falure shall occur n the devce. Followng nstructons
should be followed for preventng the rsk of frost:
- Heatng crcut, nto antfreeze (specal heatng devces) a good brand of
antfreeze manufacturer's nstructons are followed carefully so as t deems
necessary for the rate and the mnmum temperature s desred to be stored n
the heater frost protecton wth the matter.
Materals used for manufacturng the comb are resstant aganst glycol and
propylene based ant-frost lquds. Follow warnngs of suppler company
regardng ther lves and possble dsposals.
Frost / icing protection of the combi is guaranteed only under these
conditions:
Damages arsng from falng to follow above mentoned ssues and
nterrupton of electrcty supply shall be excluded from valdty of the
warranty.
In case the comb devce s nstalled at places wth temperature lower than
0°C (both for tap water and radator purposes) both radator nstallaton and
tap water ppes must be nsulated.
1.2.11. Electrical Connections
Electrcal safety of comb shall be realzed f completely connected to an
eectve earthng nstallaton that follows safety nstructons n force. No
earthng shall be made from the neutral lne on the socket for places not
havng earthng! It s dangerous and unacceptable to use gas and water
connecton ppes for earthng.
WARMHAUS A.Ş. cannot be held as responsible for any damages and
losses on individuals or commodities arising from failing to provide
earth connection of the combi and not being provided by a competent
electrician in accordance with directives and standards in force.
Also, ensure that the electrcty nstallaton comples wth the maxmum power
to be suppled as ndcated n techncal specfcatons label on the comb. Comb
s gven wth "X" type socketless specal power source cables. "Warmhaus comb
has an IPX5D protecton level. Power supply cable should be connected by relyng
on earth connecton and L-N poles n a 230 V +%10; -%15 50Hz grd, hgh voltage
category 3rd class multple pole dsconnector should be envsaged on the same
grd. Apply out Authorzed Warmhaus Servce for replacement of the cable.
1.2.9. Filling the siphon for Condensation Line
After the wall hangng operaton of condensng comb, electrcal connectons,
radator lnes, hot tap water connectons and condensaton water dranage
lne are completed, condensaton sphon should be flled wth water (Fgure
9).
Condensaton lne dran lne mpermeablty should be mantaned.
However, pror to nstallaton of the flue bend of the sphon n the
comb, dscharge 1 ltre water to the nternal flue aganst the
possblty of flue gas leakage possblty at frst start. Thus, waste gas leakage
possblty shall be prevented wth the water avalable n sphon.
Slope of condensaton water hose and lne must be always towards down.
Attentons For Condensate Dran:
FAILURE TO INSTALL THE CONDENSATE DISCHARGE PIPEWORK
CORRECTLY WILL AFFECT THE RELIABLE OPERATION OF THE BOILER
1. Ensure the dscharge of condensate comples wth any natonal or local
regulatons n force.
2. The dscharge ppe should be run n a propretary dran ppe materal e.g.
PVC, PVC-U, ABS, PVC-C or PP.
3. Metal ppework s NOT sutable for use n condensate dscharge systems.
4. Any condensate dscharge ppework external to the buldng (or n an
unheated part of t e.g. garage) must be nsulated to protect aganst frost.
5. In all cases dscharge ppe must be nstalled to ad dsposal of the
condensate. To reduce the rsk of condensate beng trapped, as few bends
and fttngs as possble should be used.
6. When dschargng condensate nto a sol stack or waste ppe the eects
of exstng plumbng must be consdered. If sol ppes or waste ppes are
subjected to nternal pressure fluctuatons when WC's are flushed or snks
empted then back-pressure may force water out of the boler trap and
cause applance lockout.
7. Condensate outlet shall not be modfed or blocked always be downwards.
Figure 9 Fllng the condensaton sphon
1 liter

11
warmhaus.com
Power supply cable should follow the defned route. In case fuses on the
adjustment card are replaced, please use 2A or 3,15A speed type fuses.
In order to feed the devce from the general electrcty grd, adapter,
multple sockets and extenson cables are not allowed to use.
1.2.12. Optional Controls: Room Thermostat, Outside Sensor and Others
Room thermostat, Outsde Temperature Sensor, etc. control devces must be
connected to Warmhaus comb devces by the authorzed servce personnel;
n case connectons are performed by unauthorzed persons, comb warranty
shall be vod.
Room thermostat, Outsde Temperature Sensor, etc. control
devces are provded as optonal accessores for Warmhaus comb
devces and they must be Warmhaus approved.
Please follow user's nstructons for placement of Outsde Temperature
Sensor.
Ths sensor can be drectly connected to electrcal nstallaton of the comb,
and t automatcally reduces the maxmum return water temperature n the
nstallaton when exteror weather temperature rses for enablng functonng
accordng to outsde temperature changes sent to radator nstallaton.
Outsde Temperature Sensor s actvated when connected as ndependent
from the used room thermostat typology and functons as common wth
room thermostats. The relaton between nstallaton nput temperature and
exteror weather temperature s defned accordng to curves n the dagram
from poston of the button located on the panel of comb (or on the control
panel f connected to comb (Fgure 47-50).
Electrcal connecton of the Outsde weather temperature Sensor shall be
made to the termnals to whch the Whte & Whte cables of the Aux cable
connected to the electronc card of the boler are connected (Fgure 10).
Figure 10 Comb room thermostat and Outsde Temperature Sensor connectons
TO PCB
TERMİNAL
ORANGE
WHITE
A
WARNING: REMOVE THE BRIDGE WIRE FROM THE ROOM THERMOSTAT/TIMER
THERMINAL WHEN THE TIMER OR OPENTHERM CONNECTED THE BOILER!
24V AC
G S M
THERMOSTAD BRIDGE
OPENTHERM
CONNECTION
OUTSIDE TEMP.
SENSOR CONNECTION
WHITE
ORANGE
WHITE
GREEN
GREEN
ORANGE
OPEN THERM
CONNECTION
OUTSIDE TEMP.
SENSOR
A
PCB
PCB
PCB
B
B
TO PCB
TERMİNAL
ORANGE
WHITE
A
WARNING: REMOVE THE BRIDGE WIRE FROM THE ROOM THERMOSTAT/TIMER
THERMINAL WHEN THE TIMER OR OPENTHERM CONNECTED THE BOILER!
24V AC
G S M
THERMOSTAD BRIDGE
OPENTHERM
CONNECTION
OUTSIDE TEMP.
SENSOR CONNECTION
WHITE
ORANGE
WHITE
GREEN
GREEN
ORANGE
OPEN THERM
CONNECTION
OUTSIDE TEMP.
SENSOR
A
PCB
PCB
PCB
B
B

12 warmhaus.com
COMBI CONTROL ACCESSORIES
RC07 Modulated, Weekly Program Scheduled, Cable room thermostat
Product code: 153.11.660.600020
WDHS-01 External Weather Temperature Sensor
Product code: 153.11.660.600001
WT-08 Large Screen, Modulated, Weekly Program Scheduled, Cable room
thermostat
Product code: 153.11.660.600021
WT-RF03 Large Screen, Modulated, Weekly Program Scheduled, Wreless
room thermostat
Product code: 153.11.660.600022
150 cm
Min.
30 cm
Room thermostat shall be
mounted 1,25 to 1,5 m above
the ground.
It shall be mnmum 30 cm
away from any doors or
wndows allowng arflows.
Instruction for Installation: Installaton
of the applance shall be carred out only
by Warmhaus Authorzed Servce. The
dual cable requred for nstallaton shall be
provded by the dealer/customer.
Figure 11 Poston of thermostat

13
warmhaus.com
Figure 12 Comb general nstallaton scheme
1.3. HYDRAULIC INSTALLATION RULES
1.3.1. Radiator and DHW Installations
Radator ad ground heatng nstallaton should be constructed n accordance
wth legstaton n force techncal specfcatons and heat loss calculaton.
Radator type and amount and ground heatng nstallaton ppe amount
should comply wth the heat loss calculaton.
• Radator nstallaton should be desgned as resstng to at least 6 bars.
• If the cty grd pressure s hgher than 6,5 bars, pressure reducer must be
nstalled.
• It s recommended to construct the radator nstallaton as double lne and
wthout usng bends and jonts as much as possble.
• Straner flter must be nstalled n radator return and tap water (cty grd)
nput lne.
• For example; as the radator cycle's 8 ltres expanson (24 kW) tank
can support maxmum (80 °C n radator system) 140 ltre and (55°C n
ground heatng system) 170 ltre nstallaton water expanson, addtonal
expanson tank should be used for larger nstallaton volumes. 170 ltre
nstallaton water expanson, addtonal expanson tank should be used for
larger nstallaton volumes.
• If the room thermostat and thermostatc radator valve shall be used
together; thermostatc valve should not be nstalled n radators n the
place where room thermostat s avalable!
• Cross connecton must be made for ecent functonng n radators
longer than 1,5 m.
• Covers should be used for radator and hot tap water wall passages and
fxed wth wall clamps for preventng slopes n expansons due to heatng.
• Comb can functon under mnmum 0,5 bar tap water pressure and that
corresponds to a very low flow rate and therefore, t shall not possble to
adjust the requested tap water temperature. For ths reason, tap water
lne should be nstalled at shortest dstance wth ppe havng at least ½”
nternal dameter and by usng bends as low as possble. At least 1 bar
pressurzed grd nput water should be suppled for acqurng the comfort
requested n the hot tap water. Hydrophore should be used f requred.
• Pror to fllng the radator nstallaton, t must be flushed and all wastes
must be cleaned!
Warnng: In order to prevent nvaldty of devce warranty pror to
makng comb connectons, clean resdues lkely to be occurred n
man heat exchangers (ppes, heater assembly, etc.) va dssolvent
or equal substances, otherwse they wll negatvely aect functonng of the
comb. In order to prevent lme scales n the radator nstallaton and therefore
faulty operaton of nstallaton, follow rules envsaged by standards regardng
domestc tap water and radator nstallatons.
Warnng: It s recommended to nstall a Ant-Lme Kt for preventng
occurrence of lme scales at places where water hardness s hgher
than 25 French degree n order to protect servce lfe and ecency
of the hot tap water heat exchanger.
1.3.2. Filling/Emptying Radiator Installation
Ensure that the pressure reaches to 1-1,5 bar n the Manometer ndcated wth
G symbol by rotatng the Fll Tap counter clockwse that s ndcated wth
F symbol n Lower Fgure 7 for fllng the closed crcut radator nstallaton
after nstallaton of the and close the Fllng Tap by rotatng clockwse and
dscharge ar of radators va ar dscharge valves.
Comb safety valve dscharge should be connected to a dscharge funnel.
Otherwse, safety valve shall be actvated and manufacturer shall not be
responsble due to water dscharge to the place of devce.
Dschargng the Condensaton Water
For dschargng the condensaton water produced by the devce, t should
be connected to waste water grd va at least Ø 24 mm ppes resstant to
acdc condensaton waters. Connecton of the devce wth waste water grd
should be made as preventng frost of the lqud contaned n the connecton
nstallaton. Pror to startng the devce, ensure that the condensaton
water s correctly dscharged; then verfy that the sphon s flled through
condensaton at frst start (parag. 2.2.10). Also, nstructons n force, natonal
and local arrangements should be taken nto consderaton for dscharge of
waste waters.
Heatng Return (cold) Cty water lne
Heatng
Flow
(hot)
Condensaton
water outlet

14 warmhaus.com
27
Installation and Servicing
SECTION 2 - INSTALLATION
Outdoor flusher
Condensate Water Drainage Pump
(Refer to detailed instructions of the pump manufacturer)
Min Ø 19 mm
Inner
Pipe
75
Min Ø 19 mm
Inner pipe
Min Ø 30 mm
Inner pipe
Air hole
Combined waster
and rain water
drainage pipe
43 mm 90º
male/female bend
Water / Air
proof
insulation
68 mm Ø PVCU
Fitting
Min Ø 19 mm
Min Ø 30 mm Drainage pipe with water
and air insulation
Maximum length of
the outer pipe
shall be 3 m.
Insert the drainage pipe
at least 25 mm into the tube
located outdoors
Pebble
≥ 500
≥ 25
Required
distance for
minimum 3-storey
buildings
Drainage and Ventilation Pipe
Min Ø 19 mm
Water / Air proof
insulation
Outdoor flusher
Min Ø 19 mm
Inner pipe
75 mm flusher
bathroom/shower
drainage combined
with other drainage
lines
Minimum 30 mm
Inner pipe
Water / Air
proof
insulation
≥ 25 Distance under grid
45º pipe
termination
75
≥ 100
Figure 2.25
Connection of a Condensate Pump Typical
Method (see manufacturers detailed instructions)
Figure 2.26
Connection of condensate Drainage Pipe to
External Soil & Vent Stack
Figure 2.27
Connection of a Condensate Drainage Pipe to an
External Rainwater Downpipe (only combined foul/rainwater
drain)
Figure 2.29
Connection of a Condensate Drainage Pipe to an
External Purpose Made Soak Away.
Figure 2.28
Connection of Condensate Drainage Pipe
Upstream of a Sink, Basin, Bath or Shower Waste Trap to
External Drain, Gulley or Rainwater Hopper
INSTALLATION
CONDENSATE............ CONT’D
45º cross-
sectional drainage
pipe outlet
Open air flusher
Figure 15 Outsde Connecton of Condensate Water Dranage Ppe
27
Installation and Servicing
SECTION 2 - INSTALLATION
Outdoor flusher
Condensate Water Drainage Pump
(Refer to detailed instructions of the pump manufacturer)
Min Ø 19 mm
Inner
Pipe
75
Min Ø 19 mm
Inner pipe
Min Ø 30 mm
Inner pipe
Air hole
Combined waster
and rain water
drainage pipe
43 mm 90º
male/female bend
Water / Air
proof
insulation
68 mm Ø PVCU
Fitting
Min Ø 19 mm
Min Ø 30 mm Drainage pipe with water
and air insulation
Maximum length of
the outer pipe
shall be 3 m.
Insert the drainage pipe
at least 25 mm into the tube
located outdoors
Pebble
≥ 500
≥ 25
Required
distance for
minimum 3-storey
buildings
Drainage and Ventilation Pipe
Min Ø 19 mm
Water / Air proof
insulation
Outdoor flusher
Min Ø 19 mm
Inner pipe
75 mm flusher
bathroom/shower
drainage combined
with other drainage
lines
Minimum 30 mm
Inner pipe
Water / Air
proof
insulation
≥ 25 Distance under grid
45º pipe
termination
75
≥ 100
Figure 2.25
Connection of a Condensate Pump Typical
Method (see manufacturers detailed instructions)
Figure 2.26
Connection of condensate Drainage Pipe to
External Soil & Vent Stack
Figure 2.27
Connection of a Condensate Drainage Pipe to an
External Rainwater Downpipe (only combined foul/rainwater
drain)
Figure 2.29
Connection of a Condensate Drainage Pipe to an
External Purpose Made Soak Away.
Figure 2.28
Connection of Condensate Drainage Pipe
Upstream of a Sink, Basin, Bath or Shower Waste Trap to
External Drain, Gulley or Rainwater Hopper
INSTALLATION
CONDENSATE............ CONT’D
45º cross-
sectional drainage
pipe outlet
Open air flusher
Figure 16 Typcal Connecton Method of a Condensate Water Dranage Ppe (refer to
detaled nstructons of the pump manufacturer)
27
Installation and Servicing
SECTION 2 - INSTALLATION
Outdoor flusher
Condensate Water Drainage Pump
(Refer to detailed instructions of the pump manufacturer)
Min Ø 19 mm
Inner
Pipe
75
Min Ø 19 mm
Inner pipe
Min Ø 30 mm
Inner pipe
Air hole
Combined waster
and rain water
drainage pipe
43 mm 90º
male/female bend
Water / Air
proof
insulation
68 mm Ø PVCU
Fitting
Min Ø 19 mm
Min Ø 30 mm Drainage pipe with water
and air insulation
Maximum length of
the outer pipe
shall be 3 m.
Insert the drainage pipe
at least 25 mm into the tube
located outdoors
Pebble
≥ 500
≥ 25
Required
distance for
minimum 3-storey
buildings
Drainage and Ventilation Pipe
Min Ø 19 mm
Water / Air proof
insulation
Outdoor flusher
Min Ø 19 mm
Inner pipe
75 mm flusher
bathroom/shower
drainage combined
with other drainage
lines
Minimum 30 mm
Inner pipe
Water / Air
proof
insulation
≥ 25 Distance under grid
45º pipe
termination
75
≥ 100
Figure 2.25
Connection of a Condensate Pump Typical
Method (see manufacturers detailed instructions)
Figure 2.26
Connection of condensate Drainage Pipe to
External Soil & Vent Stack
Figure 2.27
Connection of a Condensate Drainage Pipe to an
External Rainwater Downpipe (only combined foul/rainwater
drain)
Figure 2.29
Connection of a Condensate Drainage Pipe to an
External Purpose Made Soak Away.
Figure 2.28
Connection of Condensate Drainage Pipe
Upstream of a Sink, Basin, Bath or Shower Waste Trap to
External Drain, Gulley or Rainwater Hopper
INSTALLATION
CONDENSATE............ CONT’D
45º cross-
sectional drainage
pipe outlet
Open air flusher
Figure 17 Connecton of Condensate Dranage to Dranage and Ventlaton Ppe
27
Installation and Servicing
SECTION 2 - INSTALLATION
Outdoor flusher
Condensate Water Drainage Pump
(Refer to detailed instructions of the pump manufacturer)
Min Ø 19 mm
Inner
Pipe
75
Min Ø 19 mm
Inner pipe
Min Ø 30 mm
Inner pipe
Air hole
Combined waster
and rain water
drainage pipe
43 mm 90º
male/female bend
Water / Air
proof
insulation
68 mm Ø PVCU
Fitting
Min Ø 19 mm
Min Ø 30 mm Drainage pipe with water
and air insulation
Maximum length of
the outer pipe
shall be 3 m.
Insert the drainage pipe
at least 25 mm into the tube
located outdoors
Pebble
≥ 500
≥ 25
Required
distance for
minimum 3-storey
buildings
Drainage and Ventilation Pipe
Min Ø 19 mm
Water / Air proof
insulation
Outdoor flusher
Min Ø 19 mm
Inner pipe
75 mm flusher
bathroom/shower
drainage combined
with other drainage
lines
Minimum 30 mm
Inner pipe
Water / Air
proof
insulation
≥ 25 Distance under grid
45º pipe
termination
75
≥ 100
Figure 2.25
Connection of a Condensate Pump Typical
Method (see manufacturers detailed instructions)
Figure 2.26
Connection of condensate Drainage Pipe to
External Soil & Vent Stack
Figure 2.27
Connection of a Condensate Drainage Pipe to an
External Rainwater Downpipe (only combined foul/rainwater
drain)
Figure 2.29
Connection of a Condensate Drainage Pipe to an
External Purpose Made Soak Away.
Figure 2.28
Connection of Condensate Drainage Pipe
Upstream of a Sink, Basin, Bath or Shower Waste Trap to
External Drain, Gulley or Rainwater Hopper
INSTALLATION
CONDENSATE............ CONT’D
45º cross-
sectional drainage
pipe outlet
Open air flusher
Figure 18 Connecton of Condensate Dranage to Ran Water Dranage
Min Ø 19 mm
Min Ø 19 mm
Drainage and Ventilation Pipe
≥ 100
Figure 2.23
Connection of Condensate Drainage Pipe to
Internal Soil & Vent Stack
Figure 2.24
Connection of a Condensate Drainage Pipe
Downstream of a Sink, Basin, Bath or Shower Water Trap to
Internal Soil Vent Stack
Minimum
connection
height
up to 3
storeys
Sink/basin/
bath or
shower
Drainage and Ventilation Pipe
Figure 13 Connecton of the Condensate Water Dranage Ppe to Internal Dranage
and Ventlaton Ppe
Min Ø 19 mm
Min Ø 19 mm
Drainage and Ventilation Pipe
≥ 100
Figure 2.23
Connection of Condensate Drainage Pipe to
Internal Soil & Vent Stack
Figure 2.24
Connection of a Condensate Drainage Pipe
Downstream of a Sink, Basin, Bath or Shower Water Trap to
Internal Soil Vent Stack
Minimum
connection
height
up to 3
storeys
Sink/basin/
bath or
shower
Drainage and Ventilation Pipe
Figure 14 Connecton of Condensate Water Dranage Ppe at Indoor Bathroom
Dranage Lower Level

15
warmhaus.com
Figure 20 Pump wth Automatc Ar Vent Valve and modulaton.
COMPLY WITH
THE NEW EUROPEAN
DIRECTIVE FOR
ENERGY EFFICIENT
PRODUCTS
1.3.3. Circulation Pump
Ewa s equpped wth a pump havng controlled by an external sgnal PWM
(=feedback sgnal), the man PCB of comb sends a PWM sgnal as an
actuatng varable to the pump. It should be controlled that the pump ensures
requred flow rate dependng on the crtc lne pressure loss.
1.3.4. Controls for Initial Operation of Combi
In order to keep the comb wthn scope of warranty; frst start must be
performed by Warmhaus Authorzed Servce. Below gven ntal preparatons
should be performed pror to authorzed servce appontment request:
- Gas openng approval certfcate should be taken from the local gas
company for your gas lne,
- Comb electrcty connecton should be made va 2 or 3 Amps fuse.
Figure 21 Ewa 24 pump Flow Rate / Pressure graphc
- Ensure that no electrcty nterrupton s avalable at your home.
- Ensure that no grd water nterrupton s avalable at your home.
- Ensure that water s suppled to radator nstallaton and 1,2 - 1,5 bar
pressure s seen n the comb manometer.
27
Installation and Servicing
SECTION 2 - INSTALLATION
Outdoor flusher
Condensate Water Drainage Pump
(Refer to detailed instructions of the pump manufacturer)
Min Ø 19 mm
Inner
Pipe
75
Min Ø 19 mm
Inner pipe
Min Ø 30 mm
Inner pipe
Air hole
Combined waster
and rain water
drainage pipe
43 mm 90º
male/female bend
Water / Air
proof
insulation
68 mm Ø PVCU
Fitting
Min Ø 19 mm
Min Ø 30 mm Drainage pipe with water
and air insulation
Maximum length of
the outer pipe
shall be 3 m.
Insert the drainage pipe
at least 25 mm into the tube
located outdoors
Pebble
≥ 500
≥ 25
Required
distance for
minimum 3-storey
buildings
Drainage and Ventilation Pipe
Min Ø 19 mm
Water / Air proof
insulation
Outdoor flusher
Min Ø 19 mm
Inner pipe
75 mm flusher
bathroom/shower
drainage combined
with other drainage
lines
Minimum 30 mm
Inner pipe
Water / Air
proof
insulation
≥ 25 Distance under grid
45º pipe
termination
75
≥ 100
Figure 2.25
Connection of a Condensate Pump Typical
Method (see manufacturers detailed instructions)
Figure 2.26
Connection of condensate Drainage Pipe to
External Soil & Vent Stack
Figure 2.27
Connection of a Condensate Drainage Pipe to an
External Rainwater Downpipe (only combined foul/rainwater
drain)
Figure 2.29
Connection of a Condensate Drainage Pipe to an
External Purpose Made Soak Away.
Figure 2.28
Connection of Condensate Drainage Pipe
Upstream of a Sink, Basin, Bath or Shower Waste Trap to
External Drain, Gulley or Rainwater Hopper
INSTALLATION
CONDENSATE............ CONT’D
45º cross-
sectional drainage
pipe outlet
Open air flusher
Figure 19 Connecton of Condensate Dranage to Ran Dranage Lne through Snk,
Bathtub or Shower Dranage Ppe

16 warmhaus.com
1. Flue Outlet
2. Flue Condensaton Pan
3. Condensaton Water Dscharge Hose
4. Man Heat Exchanger
5. Ignton Electrode
6. Ar Gas Mxng Unt (AGM)
7. CH NTC Sensor
8. Condensaton Water Trap (Sphon)
9. Radator Outlet (Flow) Ppe
10. Three Way Motorzed Valve
11. Condensaton water Dscharge Hose
12. Low Pressure swtch
13. Expanson Tank Ar Valve
14. Flue Gas NTC Sensor
15. Expanson Valve
16. Gas Inlet Ppe
17. CH Return NTC Sensor
18. Pump
19. DHW Plate Heat Exchanger
20. 3 Bar safety Valve
21. Manometer
22. Gas Valve
23. Heat Exchanger Door
24. Electronc Fan
25. Automatc ar relef Valve
26. Control Panel
27. Tap Water Flow Sensor
28. Radator Inlet (Return) Ppe
29. Fllng Tap
4
6
3
8
9
10
12
13
15
16
18
19
20
22
24
23
4
26
17
21
25
1
14
2
5
7
11
27
28
29
1.3.5. Parts Comprising the Combi
1.4. COMBI FLUE CONNECTIONS
1.4.1. Exhaust Gas Flue Pipe Set and Accessories Connection
Flue accessory sets to be used n exhaust gas nstallaton of
hermetc comb should be orgnal Warmhaus flue sets and they
should be used by consderng measurements and restrctons
gven n nstallaton nstructons.
In case of usng exhaust gas ppe and/or accessores other than
Warmhaus orgnal exhaust gas flue ppes and accessores, comb
shall not be commssoned by the Authorzed Servce and thus, no
warranty s gven!
Warmhaus provdes derent solutons for placng exhaust gas dscharge and
ar sucton ppes n addton to the comb and comb shall not be operated
wthout them.
Figure 23 Warmhaus logo s avalable on the flue bend.
Comb should only be nstalled wth orgnal Warmhaus ar sucton and
exhaust gas dscharge devce made of plastc materal. Plastc channels
cannot be nstalled wthout sutable protecton aganst UV and weather
condtons to dstances over 40 cm and exterors. Every ppe s defned wth
an explanatory and dscrmnatve Warmhaus mark mentoned n remarks.
See Fgure 23.
Flue should be nstalled n accordance wth natonal and local drectves.
Figure 22 Components of Comb

17
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1.4.2. COMBI FLUE CONNECTION TYPES
Figure 27 Hermetc vertcal splt flue connecton.
Figure 25 Hermetc concentrc and vertcal splt
flue connecton.
Figure 26 Vertcal Type Hermetc Use wth Splt
Flue Set
Figure 29 Exhaust gas dscharge through the
buldng chmney and fresh ntake from the
buldng chmney wth splt flue sets
Figure 28 Buldng chmney connecton wth hermetc
splt flue
Dscharge wth homocentrc flue connecton
Dscharge to buldng chmney and fresh ar ntake wth
splt flue connecton
For room sealed applances of the type C8 bolers
a) overheat combuston products temperature; < 105 C°
b) G20 : CO2-content; 9.00 % ( tolerance +%0,5 / -0,5%);
G30 / G31: CO2-content; 10.00 % ( tolerance +%0,5 /
-0,5 %)
c) characterstcs of the chmney to whch the boler may
be connected, accordng to fg 13.
d) condensate flow nto the applance s not allowed.
Exhaust gas discharge through the building chimney and
fresh intake from outside with split flue sets
For room sealed appliances of the type C6 boilers
overheat combustion products temperature for flue;
< 105 °C G20 : CO2content at nominal operating
conditions; 9.00 % (tolerance : +%0,5 / -0,5 % ) G30 /
G31 : CO2-content; 10.00 % (tolerance : +%0,5 / -0,5 %)
maximum allowable draught and maximum allowable
pressure dierence between combustion air inlet and
flue gas outlet (including wind pressures); 120 Pa.
characteristics and the applications of the duct system
to which the boiler can be connected; condensate flow
into the appliance is not allowed. Maximum allowable
temperature of combustion air; 40 C° maximum allowable
recirculation rate of 10 % under wind conditions.
Attention: The terminals for the supply of combustion air
and for the evacuation of combustion products shall not
be installed on opposite walls of the building.
Exhaust gas dscharge through the buldng
chmney and fresh ntake from outsde wth splt
flue sets
Exhaust gas dscharge and fresh ar ntake wth
concentrc flue kt and splt flue kts
For room sealed applances of the type C5 bolers
Attenton: The termnals for the supply of combuston
ar and for the evacuaton of combuston products
shall not be nstalled on opposte walls of the buldng.
Exhaust Gas Dscharge Fresh Ar Intake wth Splt
Flue Sets
The termnal outlets from separate combuston
and ar supply crcuts shall ft nsde a square of 50
cm and that the dstance between the planes of
the two orfces shall be less than 50 cm.
Air
Exhaust Gas
Figure 24 Hermetc (Concentrc) and Flue (Splt-Flue
type
C13
C53
C53 C33
B23
C
C83

18 warmhaus.com
Figure 30 Exhaust gas dscharge through the buldng chmney and fresh ntake from the buldng chmney wth splt flue sets
Attenton: The mnmum usable dameter must not
be under 80 mm or equvalent for the vertcal duct
supplyng the combuston ar.
Attenton:
a) nomnal workng combuston product temperature : > 70°C max condtons
b) overheat combuston products temperature : 105° C
c) the mnmum length of the specfed connectng ducts; 1 mt / maxmum length of the specfed
connectng ducts; 10 mt
d) For sze/shape of the end of the fttng please refer 2.2.14. Installaton wth Vertcal Flue Sets page 13,
Fg.26.
e) Please re adjust TsP Paramater P22 = Flues gas ppe length ( value 1 = 1 meter ) accordng to actual flue
lenght
f) Its MUST to use NON RETURN valve ON the flue gas system.
g) non-return valve functon has to be checked annually by authorsed servce.
Informaton for the desgn of the common duct system for a type C(10) boler
a) The boler s desgned to become connected to a common duct system that s desgned to operate
where the statc pressure n the common flue duct mght exceed the statc pressure n the common ar
duct by 25 Pa under the condton that n-1 bolers are runnng at maxmum nomnal heat nput (Qn,max)
and 1 boler at the mnmum heat nput allowed by the controls
b) combuston product mass flow rate at maxmum nomnal heat nput are gven techncal table.
c) combuston product mass flow rate at mnmum heat nput allowed by the controls are gven techncal
table.
d) G20 : CO2 or O2 content of the combuston products at nomnal operatng condtons 9 % ( +0,5/-0,5 )
G30 / G31 : CO2-content; 10.00 % ( tolerance : +%0,5 / -0,5 % )
e) mnmum allowable pressure derence between combuston product outlet and ar nlet shall be
declared as -200 Pa (ncludng -100 Pa wnd pressure).
General for connecton of a type C(10) boler to a common duct system
Characterstcs and the applcatons of the common duct system to whch the boler can be connected,
wth at least the followng nformaton:
a) the flue duct system shall be CE marked and comply wth EN 15502 standart 12.2.1.4.111.2;
b) nomnal combuston products temperature for dmensonng the common duct system shall be
declared as 25 °C;
c) the combuston product mass flow rate at maxmum heat nput shall be specfed for every connecton
pont; the termnal of the common duct shall be desgned to nduce a draft;
d) condensate flow nto the boler s allowed;
e) maxmum allowable recrculaton rate of 10 % under wnd condtons;
f) the maxmum allowable pressure derence between combuston product nlet and ar outlet of the
common duct system shall not be exceeded when n-1 bolers are runnng at maxmum nomnal heat
nput (Qn,max) and 1 boler at the mnmum heat nput allowed by the controls;
g) the common flue duct shall be approprate for an overpressure of at least 200 Pa;
h) the duct system shall not nclude a draft dverter.
Warnng: the boler f t s nstalled as a C (10) boler and IF / when the boler s dsconnected the ar
outlet and the combuston product nlet openngs shall be closed and checked on tghtness.
C
No place of the output flue should be blocked and not prevent other
connectons. If the output ppe passes 1000 mm nearby of a plastc or panted
groove or 500 mm of panted frnges, an alumnum sheld wth at least 1000
mm length should be placed below the groove or frnge. Output ppe should
be at least 2 m over surfaces those may be reached by ndvduals.
Under certan weather condtons, output ppe may emt water vapour;
nstallaton should not be performed at places where ths vapour may cause
dscomfort.
Exhaust gases should be prevented from enterng flue ventlaton spaces.
Flue system of comb may be nstalled from nsde the room wthout requrng
nterventon from the external wall. For that reason, a housng should be
nstalled n the wall for lnng the nternal surface of channel wheren the
output ppe passes through the wall, partcularly for thck walls.
C10
Figure 31 Gas appliance with combustion air supply and flue gas
discharge designed for connection to an air/flue system.
Separate ducts are used here for combustion air supply and flue gas discharge,
ensuring that every appliance is supplied with fresh combustion air. Air/flue systems
of this type are on the market with both parallel and concentric duct configurations.
Appliances with either concentric or parallel air/flue system
can be connected to both configurations.
C43

19
warmhaus.com
1.4.3. Peripheral Distances of Flue Output Connections
In order to poston the flue set output ppe
1.4.4. Installation with Horizontal Flue Sets
Connecting Horizontal Concentric Flue Set to the Combi, (original
diameter DN 60/100 mm)
Snce your comb s hermetc model, t takes the used ar from exteror and
dscharges exhaust gases created as the result of burnng through the same
flue group. In order to prevent emsson of excessvely harmful exhaust gases,
flue usage and nstallaton s very mportant, therefore warnngs should be
taken nto consderaton when flue connectons are beng performed.
• Make requred flue selecton for the flue connecton to be made externall
and nstallaton place of the comb. If the standard flue set s not
adequate, please select most sutable elements from our lst of connecton
accessores consderng warnngs gven n our user's gude.
• Fx the flange under the Bend pece (1) by usng the Flange Bolt (10) va
Flange Connecton Screws (11) to holes on the comb.
• 2 mpermeablty bolts wthn the hermetc flue set (2) are placed nto
nternal ppe slots at both ends of the 90° Bend.
• Place the exteror wall (EPDM) bolt nto the flue termnal as seen n Fgure
19 for groupng the flue output termnal. After placng the flue output
termnal through exteror of wall and the prevously opened hole, fx the
Interor Wall Connecton Bolt (7) nto the flue termnal.
300 min
Terminal
Assembly
Top View Rear Flue
Property Boundary Line
*
N
I
I
G
F
M
I
AAF
H
J,K
D
E
H
C
RA
I
J,K
I
L
S
B
T
U
Likely flue positions requiring
a flue terminal guard
Figure 32 Envronmental locatons of flue
Termnal Poston wth Mnmum Dstance (mm)
A1Drectly below an openng, ar brck, openng wndows, etc. 300
B1Above an openng, ar brck, openng wndow etc. 300
C1Horzontally to an openng, ar brck, openng wndow etc. 300
D2Below gutters, sol ppes or dran ppes. 25 (75)
E2Below eaves. 25 (200)
F2Below balcones or car port roof. 25 (200)
G2From a vertcal dran ppe or sol ppe. 25 (150)
H2From an nternal or external corner. 25 (300)
IAbove ground, roof or balcony level. 300
JFrom a surface or boundary lne facng a termnal. 600
Termnal Poston wth Mnmum Dstance (mm)
KFrom a termnal facng a termnal (Horzontal flue).
From a termnal facng a termnal (Vertcal flue).
1200
600
LFrom an openng n carport (e.g. door, wndow)
nto the dwellng.
1200
MVertcally from a termnal on the same wall. 1500
NHorzontally from a termnal on the same wall. 300
RFrom adjacent wall to flue (vertcal only). 300
SFrom an adjacent openng wndow (vertcal only). 1000
TAdjacent to wndows or openngs on ptched and flat roofs 600
UBelow wndows or openngs on ptched roofs 2000
1 In addton, the termnal should be no nearer than 150 mm to an openng n the buldng fabrc formed for the purpose of accommodatng a bult-n element such as a wndow frame.
2 Only ONE 25mm clearance s allowed per nstallaton. If one of the dmensons D, E, F, G or H s 25mm then the remander MUST be as shown n brackets, n accordance wth B.S.5440-1.
NOTE: The dstance from a
fanned draught applance
termnal nstalled parallel to
a boundary may not be less
than 300 mm n accordance
wth the dagram below

20 warmhaus.com
1.5. INSTALLING THE FLUE SYSTEM
Apply a suitable lubricant to the sealing joints before connecting any flue
products and ensure the horizontal flue terminal is installed level without a
slope.
The flue pipe must be sealed internally and externally with the wall seals
supplied.
Installation of
flue set pieces.

During installation please ensure that all flue extensions are
installed with a slope back to the boiler between 1.5 degree and
3 degrees. Also ensure the pipe is supported every 1 meter and
change in direction
60/100 mm Concentric flue systems information
Only approved Warmhaus flue systems can be connected to our appliance
and no other flues have been tested or approved to work with any
Warmhaus appliances – see below our list of standard products:
Concealed Flue Configurations
Where our Warmhaus flue system is to be installed in concealed locations
provisions must be made for inspection and service requirements.
• Minimum 300 mm square inspection hatches must be fitted.
• The inspection hatch edge must not be fitted more than 1.5 meters away
from a flue joint
• Inspection hatches should be fitted at every change of direction.
Flue Data
60/100mm Concentric flue systems information
Warmhaus flue pipe technical specification:
Horizontal Termination:
• Maximum length = 10 meters including the bend or adaptor connected
directly to the boiler.
• Additional horizontal flue pipes should always be installed with a 1.5° to 3°
fall from the terminal to allow condensate to run back to the boiler (1.5° =
25 mm per meter).
• Eective flue length for the following:
Elbow Equivalent To Straight Length
45 Degree 0.5 meter
90 Degree 1.0 meter
a c
1.5° - 3°
b
A
Flue Therminal
Wall Transition
Plate
Flue Therminal
Pipe
Wall
A

Warmhaus
horizontal
flue sets
do not require any
fall and must be
installed level.

Ensure the flue
extensions are
fitted with the
correct slope.
Figure 35 Sngle 90° bended sample flue nstallaton
Figure 36 Transton detal of the horzontal flue kt through the wall
(Ø60/100 mm)
Lmax : Total Equivalent Length ≤10 m
Lmax : a (90° Bend) + b + c ≤10 m
0037_00.W210420
0038_01.W210420
0039_01.W210420
0040_02.W210707
Figure 33 Concentrc flue kt wall output.
Figure 34. Installaton of the Flue Kt wthout slope