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