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No place of the output flue should be blocked and not prevent other 
connections. If the output pipe passes 1000 mm nearby of a plastic or painted 
groove or 500 mm of painted fringes, an aluminium shield with at least 1000 
mm length should be placed below the groove or fringe. Output pipe should 
be at least 2 m over surfaces those may be reached by individuals.

Under certain weather conditions, output pipe may emit water vapour;
installation should not be performed at places where this vapour may cause 
discomfort.

Figure 31 

Exhaust gas discharge through the building chimney and fresh intake from the building chimney with split flue sets

Attention:

 The minimum usable diameter must not 

be under 80 mm or equivalent for the vertical duct 

supplying the combustion air.

Attention:

 

a)  nominal working combustion product temperature : > 70°C max conditions 
b) overheat combustion products temperature : 105° C
c)  the minimum length of the specified connecting ducts; 1 mt / maximum length of the specified 

connecting ducts; 10 mt

d) For size/shape of the end of the fitting please refer 2.2.14. Installation with Vertical Flue Sets page 13, 

Fig.26.

e)  Please re adjust TsP Paramater P22 = Flues gas pipe length ( value 1 = 1 meter ) according to actual flue 

lenght  

f)  Its MUST to use NON RETURN valve ON the flue gas system. 
g) non-return valve function has to be checked annually by authorised service.

Information for the design of the common duct system for a type C(10) boiler

a)  The boiler is designed to become connected to a common duct system that is designed to operate 

where the static pressure in the common flue duct might exceed the static pressure in the common air 

duct by 25 Pa under the condition that n-1 boilers are running at maximum nominal heat input (Qn,max) 

and 1 boiler at the minimum heat input allowed by the controls

b) combustion product mass flow rate at maximum nominal heat input are given technical table.
c)  combustion product mass flow rate at minimum heat input allowed by the controls are given technical 

table.

d) G20 : CO2 or O2 content of the combustion products at nominal operating conditions 9 % ( +0,5/-0,5 )  

G30 / G31 : CO2-content; 10.00 % ( tolerance : +%0,5 / -0,5 % )

e)  minimum allowable pressure difference between combustion product outlet and air inlet shall be 

declared as -200 Pa (including -100 Pa wind pressure).

General for connection of a type C(10) boiler to a common duct system

Characteristics and the applications of the common duct system to which the boiler can be connected, 

with at least the following information:
a)  the flue duct system shall be CE marked and comply with EN 15502 standart 12.2.1.4.111.2;
b) nominal combustion products temperature for dimensioning the common duct system shall be 

declared as 25 °C;

c)  the combustion product mass flow rate at maximum heat input shall be specified for every connection 

point; the terminal of the common duct shall be designed to induce a draft;

d) condensate flow into the boiler is allowed;
e)  maximum allowable recirculation rate of 10 % under wind conditions;
f)  the maximum allowable pressure difference between combustion product inlet and air outlet of the 

common duct system shall not be exceeded when n-1 boilers are running at maximum nominal heat 

input (Qn,max) and 1 boiler at the minimum heat input allowed by the controls;

g) the common flue duct shall be appropriate for an overpressure of at least 200 Pa;
h) the duct system shall not include a draft diverter.

Warning:

  the boiler if it is installed as a C (10) boiler  and IF / when the boiler is disconnected the air 

outlet and the combustion product inlet openings shall be closed and checked on tightness. 

C

Exhaust gases should be prevented from entering flue ventilation spaces.

Flue system of combi may be installed from inside the room without requiring 
intervention from the external wall. For that reason, a housing should be 
installed in the wall for lining the internal surface of channel wherein the 
output pipe passes through the wall, particularly for thick walls.

C

10

Содержание EWA 24

Страница 1: ...CONDENSING COMBI BOILERS INSTALLATION USER MANUAL EWA24 EWA28 EWA33...

Страница 2: ...EWA 24 EWA 28 EWA 33...

Страница 3: ...mptying Radiator Installation 13 2 3 3 Circulation Pump 15 2 3 4 Controls for Initial Operation of Combi 15 2 3 5 Parts Comprising the Combi 16 2 4 COMBI FLUE CONNECTIONS 16 2 4 1 Exhaust Gas Flue Pip...

Страница 4: ...and instructions provided by the manufacturer under any circumstances during installation use or maintenance operations and device warranty shall also be void Only the authorized Warmhaus Service is...

Страница 5: ...YES II 2E 3P Natural Gas 20 mbar 25 mbar G20 Available Available Not Available BE FR YES II 2H3B P Natural Gas 20 mbar G20 Available Available Not Available AT CH CY CZ DK EE FI GR IT LT NO RO SE SI...

Страница 6: ...es operating with natural gas and your gas meter Immediately evacuate the place with gas odour Natural Gas Emergency Line from your neighbour or another suitable place Do not make any intervention on...

Страница 7: ...Figure 2 User s Guide 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 110 m m 114 mm OPTIONAL Ewa Priwa ERP Priwa ERP Plus...

Страница 8: ...r semi full brick wall according to installation scheme and with connection screws and not to be used for other purposes In case of using different materials for installation combi shall be out of the...

Страница 9: ...2 2 7 In Case of Using LPG Tank LPG use is recommended for heat requirements over 24 kW New LPG stock tanks may contain settled gas residues nitrogen however that pauperises the mixture assigned to t...

Страница 10: ...ceptable to use gas and water connection pipes for earthing WARMHAUS A cannot be held as responsible for any damages and losses on individuals or commodities arising from failing to provide earth conn...

Страница 11: ...ensor is activated when connected as independent from the used room thermostat typology and functions as common with room thermostats The relation between installation input temperature and exterior w...

Страница 12: ...0 600021 WT RF03 Large Screen Modulated Weekly Program Scheduled Wireless 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 groun...

Страница 13: ...d in the hot tap water Hydrophore should be used if required Prior to filling the radiator installation it must be flushed and all wastes must be cleaned Warning In order to prevent invalidity of devi...

Страница 14: ...mum 3 storey buildings Drainage and Ventilation Pipe Min 19 mm Water Air proof insulation Figure 2 26 Connection of condensate Drainage Pipe to External Soil Vent Stack Connection of Condensate Draina...

Страница 15: ...ppointment request Gas opening approval certificate should be taken from the local gas company for your gas line Combi electricity connection should be made via 2 or 3 Amps fuse Figure 22 Ewa 28 Ewa 3...

Страница 16: ...on of hermetic combi should be original Warmhaus flue sets and they should be used by considering measurements and restrictions given in installation instructions In case of using exhaust gas pipe and...

Страница 17: ...ontent 10 00 tolerance 0 5 0 5 maximum allowable draught and maximum allowable pressure difference between combustion air inlet and flue gas outlet including wind pressures 120 Pa characteristics and...

Страница 18: ...t are given technical table c combustion product mass flow rate at minimum heat input allowed by the controls are given technical table d G20 CO2 or O2 content of the combustion products at nominal op...

Страница 19: ...H C R A I J K I L S B T U Likely flue positions requiring a flue terminal guard Figure 32 Environmental locations of flue Terminal Position with Minimum Distance mm A1 Directly below an opening air br...

Страница 20: ...5 mm when compared with the external pipe For security purposes combi suction discharge flue should not blocked even temporarily 1 90 bend 2 Sealing gasket 3 Sealing gasket 4 Centering wire 5 Exterio...

Страница 21: ...sed for 80 intake and exhaust pipes is 30 metres regardless from whether they are used for intake or exhaust Figure 41 Vertical flue set installation application Figure 42 Hermetic flue type installat...

Страница 22: ...rill fitted The air pipe can be situated at the side or beneath the flue pipe to a minimum dimension of 140 mm see Table 1 It must not be sited above the flue pipe The flue and air pipes must extend b...

Страница 23: ...apter L 1533 153 11 660 600013 60 100 Condensed Flue Extension L 500 mm 153 11 660 600014 60 100 Condensed Flue Extension L 1000 mm 153 11 660 600015 60 100 Condensed Flue Extension L 2000 mm 153 11 6...

Страница 24: ...m 153 11 660 600092 80 Condensed Twin Flue Extension Pipe L 1000 mm 153 11 660 600093 80 Condensed Twin Flue Extension Pipe L 2000 mm 153 11 660 600094 80 Twin Flue Bend 90 153 11 660 600095 80 Twin F...

Страница 25: ...minals For GB recommendations are given in BS 5440 Pt 1 For IE recommendations are given in the current edition of I S 813 Domestic Gas Installations 2 If the terminal discharges onto a pathway or pas...

Страница 26: ...ut is not blocked If a room thermostat or control device is connected ensure that it is at ON position If you will shut off the combi for a long period perform below written operations Discharge the r...

Страница 27: ...he combi and eliminating the failure in case of combi failure MODE Winter Summer OFF mode is used for position adjustment Operating positions and related notifications POSITION EXPLANATIONS CLOSED or...

Страница 28: ...re adjustment buttons see Figure 39 between 25 80 C screen lights when buttons are pressed and C symbol flashes besides the radiator temperature value If you have a ground heating system as our Author...

Страница 29: ...ght turns off Analogue manometer is located near to right bottom side of the combi Installation pressure should be seen in this manometer even in the absence of electricity If you have a ground heatin...

Страница 30: ...ment of installation place Thus the combi automatically operates with variable gas flow rates depending on heat load of installation between the minimum and maximum power P21 Lowe temperature region s...

Страница 31: ...4 RESET boiler and check if problem removed 5 Call for authorised service at first E 07 Safety thermostat intervention Boiler does not work E07 error code flashing on the screen Lack of water on the...

Страница 32: ...removed 5 Call for authorised service at first E 28 Maximum allowed consecutive lock out reset reached Usable RESET number reached Too many consecutive lock out failures followed by reset due to other...

Страница 33: ...ssure Aging or rust on the electrode Recirculation on fluegas path Blokage on flue or wrong flue Electrode position Cabeling disconnections Combustion calibration Electronic board Gas valve failiure 1...

Страница 34: ...lve failiure Electronic board 1 Call for authorised service at first 2 Check wrong flue OR flue gas blockage 3 Check recirculation flue gas leak from flue gas path to fresh air side check flue gas sea...

Страница 35: ...least execute maintenance operations on a yearly basis in compliance with what is stated in the relative point at annual check and maintenance of the appliance in compliance with national regional or...

Страница 36: ...400 2400 2400 Pump Energy Efficiency Index EEI 0 20 0 20 0 20 Domestic Hot Water Circuit Maximum DHW Heat Input kW 25 8 29 7 34 2 Minimum DHW Heat Input kW 3 5 3 75 4 35 Max Domestic Hot Water flow ra...

Страница 37: ...on was determined by applying the spesifications of the relevant European directives Differences to product information listed elsewhere may result in different test conditions Only the data that is c...

Страница 38: ...ual electricity consumption AEC kWh 26 37 34 39 42 Water Heating Energy Efficiency hwh 81 84 83 84 82 Daily fuel consumption Qfuel kWh 14 809 23 152 23 615 23 078 29 317 Annual fuel consumption AFC GJ...

Страница 39: ...been carefully prepared but we reserve the right to make changes and improvements in our products which may affect the accuracy of the information contained in this leaflet All goods are sold subject...

Страница 40: ...Ewa Installation User Manual code 150 11 606 000075 Revision Date R00 05 2019 EWA24 EWA28 EWA33 CONDENSING COMBI BOILERS INSTALLATION USER MANUAL...

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