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CONDENSING COMBI BOILER

INSTALLATION MANUAL

EWA 20

EWA 24

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Summary of Contents for EWA 20

Page 1: ...CONDENSING COMBI BOILER INSTALLATION MANUAL EWA 20 EWA 24...

Page 2: ...EWA 20 EWA 24...

Page 3: ...n 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 an...

Page 4: ...4 warmhaus com...

Page 5: ...ilable 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 Ava...

Page 6: ...6 warmhaus com...

Page 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...

Page 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...

Page 9: ...1 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...

Page 10: ...able 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 connecti...

Page 11: ...nsor 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 we...

Page 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...

Page 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...

Page 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...

Page 15: ...thorized service appointment 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 Figu...

Page 16: ...o be used in exhaust gas installation of hermetic combi should be original Warmhaus flue sets and they should be used by considering measurements and restrictions given in installation instructions In...

Page 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...

Page 18: ...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...

Page 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...

Page 20: ...tion 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 W...

Page 21: ...ceed 10 m with single elbow horizontally Also this total length reduces by 1 m with every 90 elbows or two 45 elbows Maximum 3 pieces of 90 elbow can be used a Standard Flue Set Elbow 90 b Flue Extens...

Page 22: ...es Flue Data WARNING Warmhaus flue pipe technical specification Vertical Termination Maximum length 11 meters including the bend or adaptor connected directly to the boiler Effective flue length for t...

Page 23: ...al flue set installation application Implementation L1 0 3 m L2 0 5 m 45 elbow equivalent length L3 2 0 m L4 0 5 m 45 elbow equivalent length L5 1 0 m L6 1 5 m L Total 6 3 m 6 3 m Lmax 11 m Correct in...

Page 24: ...ension of 140 mm see Table 1 It must not be sited above the flue pipe The flue and air pipes must extend by at least 40 mm from the wall surface Condensing boiler emit a visible plume of water vapour...

Page 25: ...0 Condensing Flue Extension L 1000 mm 15311660600015 White 60 100 Condensing Flue Extension L 2000 mm 15311660600016 White 60 100 Condensing 45 Elbow 15311660600017 White 60 100 Condensing 90 Elbow L...

Page 26: ...0 mm 80 mm L 500 mm 153 11 660 600091 80 Condensing Twin Flue Extension Pipe L 1000 mm 80 mm L 1000 mm 153 11 660 600092 80 Condensing Twin Flue Extension Pipe L 2000 mm 80 mm L 2000 mm 153 11 660 600...

Page 27: ...n products will not cause a nuisance and that the terminal will not obstruct the passageway 3 If a terminal is less than 2 metres above a balcony above ground or above a at roof to which people have a...

Page 28: ...NTC 4 Check cabling and connectors between double NTC and board 5 Reset Restart boiler E 06 No ignition Boiler does not work E06 error code flashing on the screen Gas supply failure 1 RESET boiler che...

Page 29: ...ault Boiler does not work E12 error code flashing on the screen Domestic heating water temperature sensor in storage tank faulty 1 Check intermittent contacts or open contacts on harness carefully 2 C...

Page 30: ...ed 2 Check the root cause of Error code to solve 3 If fault still persists call for authorised service E 37 Low voltage anomaly Boiler does not work E37 error code flashing on the screen Low voltage 1...

Page 31: ...onnections Combustion calibration Electronic board Gas valve failiure 1 Call for authorised service at first 2 Check gas supply pressure must be 20 17 mbar Gas pressure must be in between on this valu...

Page 32: ...ulation flue gas leak from flue gas path to fresh air side check flue gas sealings specially 5 Check any problems on the ionisation electrode like condensation rust etc and control poistioning of the...

Page 33: ...e electrode 5 Check for condensation on the cabling AND OR on board 6 Check earth connection between board and electrode 7 Check electrode cabeling between board and electrode 8 Check combustion CO2 o...

Page 34: ...sed service must perform Au To calibration E 96 Flue or air suction way blockage Boiler does not work E96 error code flashing on the screen Blokage on flue Blokage on air suction path 1 Call for autho...

Page 35: ...omestic Hot Water Circuit Water Heating Energy Efficiency Class A A A Water Heating Declared Load Profile XL L XL Water Heating Energy Efficiency 85 81 84 Gas Consumption at Maximum m h 2 47 2 83 0 73...

Page 36: ...Heating Energy Efficiency s 91 92 92 Useful efficiency at rated heat output and high temperature regime 2 4 87 60 87 57 87 57 Useful efficiency at 30 of rated heat output and low temperature regime 1...

Page 37: ...arefully 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 to our...

Page 38: ...EWA 20 EWA 24 CONDENSING COMBI BOILER INSTALL ATION MANUALEwa Installation Service Manual Code 15011606000140 Revision Date R00 12 2021...

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