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Power supply cable should follow the defined route. In case fuses on the 
adjustment card are replaced, please use 2A or 3,15A speed type fuses. 
In order to feed the device from the general electricity grid, adapter, 

multiple sockets and extension cables are not allowed to use.

1.2.12. Optional Controls: Room Thermostat, Outside Sensor and Others

Room thermostat, Outside Temperature Sensor, etc. control devices must be 
connected to Warmhaus combi devices by the authorized service personnel; 
in case connections are performed by unauthorized persons, combi warranty 
shall be void.

Room thermostat, Outside Temperature Sensor, etc. control 
devices are provided as optional accessories for Warmhaus combi 
devices and they must be Warmhaus approved.

Please follow user's instructions for placement of Outside Temperature 
Sensor.

This sensor can be directly connected to electrical installation of the combi, 
and it automatically reduces the maximum return water temperature in the 
installation when exterior weather temperature rises for enabling functioning 
according to outside temperature changes sent to radiator installation. 
Outside Temperature Sensor 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 weather temperature is defined according to curves in the diagram 
from position of the button located on the panel of combi (or on the control 
panel if connected to combi (Figure 47-50).

Electrical connection of the Outside weather temperature Sensor shall be 
made to the terminals to which the White & White cables of the Aux cable 
connected to the electronic card of the boiler are connected (Figure 10). 

Figure 10 

Combi room thermostat and Outside Temperature Sensor connections

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

Содержание EWA 20

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

Страница 2: ...EWA 20 EWA 24...

Страница 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...

Страница 4: ...4 warmhaus com...

Страница 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...

Страница 6: ...6 warmhaus com...

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: ...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...

Страница 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...

Страница 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...

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: ...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...

Страница 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...

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: ...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...

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: ...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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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