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2.1.2. On/Off/Stand-by Positions

The boiler panel does not have 

ON/OFF

 button. The boiler must be turned 

on/off by using the V circuit breaker connected to the boiler circuit.

The temperature value displayed on the combi screen has a ± 3°C tolerance 

depending on environmental conditions not arising from the combi.

RESET: It is used for resetting the failure (if temporary) re-starting the 

boiler 
MODE:

 Used for Winter/Summer/OFF mode adjustment.

Operating modes and related notifications:
OPERATING MODES EXPLANATIONS:

• 

OFF

•  

WINTER

► 

 Radiator tempe °C + tap + radiator is displayed.

• 

SUMMER

► 

 Radiator tempe °C + tap is displayed.

• 

CH ON

► 

 Radiator Tempe °C + tap + flashing radiator (symbol) 

is displayed.

• 

DHW ON

► 

 DHW tempe °C + flashing tap (symbol) is displayed.

• 

CH FROST PROTECTION

► 

 Radiator temperature

•  °C + flashing radiator (symbol) + when boiler is ignited flame (symbol) 

is displayed.

• 

DHW FROST PROTECTION

► 

 CH tempe °C flashing radiator 

and tap (symbol) + when boiler ignited flame (symbol)

• 

CH/DHW SETTING CHANGE

► 

 CH adjustment change will be activated 

when radiator symbol rapidly flashes. DHW adjustment change will be 

activated when tap symbol rapidly flashes.

• Service technician function ra tap displayed. (Only for authorized 

service, wait for the function to end without pressing any button or rotating 

the button in such case!)

CH : 

Central Heating

  

DHW : 

Domestic Hot Water

When the combi is started for the first time, 
screen displays nG letter and then a number 
(for instance 24) indicating kW power of the 
device

and screenlight is closed. Now, combi is at 
STANDBY position. The temperature value 
when electricity is supplied to the device 
is the temperature value of water in the 
installation.

Then, OFF letter is displayed,

OFF

OFF

2.1.3. Operation in Winter Mode

In winter mode, boiler operates both for heating the environment and 

providing Domestic Hot Water. Radiator (CH) temperature adjustment is 

made with (3) and (4) numbered buttons in Figure 1 Domestic Hot Water 

temperature adjustment is made with (6) and (7) numbered buttons and 

this temperature is indicated with (9) numbered indicator for Radiator (CH) 

and with (11) numbered indicator for Domestic Hot Water.

Radiator temperature is adjusted with button 
(3) and Domestic Hot Water temperature 
adjustment is made with button(4) and this 
temperature is displayed by indicator (7) on 
the screen.

In order to shuton the combi, hold 

MODE

 

button, whereas a circle starts on the screen, 
release the button when circle 

 is 

completed.

In such case, combi initially gets in the 
Radiator position, its symbol flashes at left 
top corner of screen and existing radiator 
installation temperature is displayed on the 
screen and then screen light turns off. At 
that position, you can adjust the temperature 
between 25 – 80 °C with the Radiator 
temperature adjustment button (3).

You can increase (14) and decrease (15) the 
temperature with temperature adjustment 
buttons (see.Figure 48) between 25 – 80 
°C, screen lights when buttons are pressed 
and °C symbol flashes besides the radiator 
temperature value.

Summary of Contents for EWA 2525C

Page 1: ...CONDENSING COMBI BOILERS USER MANUAL EWA 2525C EWA 2530C...

Page 2: ...ith limited mental and sensory capabilities or by persons who do not have enough experience and or knowledge unless they are supervised by a person who is responsible for their safety or they have bee...

Page 3: ...of On Off Stand by and Summer Winter Modes 8 2 1 3 On Off Stand by Positions 8 2 1 4 Operation in Winter Mode 8 2 1 5 Operation in Summer Mode 9 2 1 6 Shutting off the Boiler 9 2 2 USE WITH ROOM THERM...

Page 4: ...le The maintenance and repairs as the result of failure of the product within the warranty period due to material production and installation errors shall be performed as free of charge without claimi...

Page 5: ...mbar G25 DE II 2L3P Natural Gas 25 mbar G25 NL II 2L3B P Natural Gas 25 mbar G25 NL II 2ELL3B P Natural Gas 20 mbar G25 DE I 3 Buthane Gas 28 30 mbar 37 mbar G30 BE CH CY CZ ES FR GB GR IE IT LT PT S...

Page 6: ...ly at the gas meter or an appropriate emergency control valve Immediately evacuate the place Call the National Gas Emergency Service 0800111999 or in Ireland 1850 20 50 50 Do not make any intervention...

Page 7: ...klet are strictly followed for safe and economical operation of the boiler Important Notes This appliance must not be operated without the casing correctly fitted and forming an adequate seal If the b...

Page 8: ...the first time screen displays nG letter and then a number for instance 24 indicating kW power of the device and screenlight is closed Now combi is at STANDBY position The temperature value when elect...

Page 9: ...60 C with the Domestic Hot Water temperature adjustment button 4 Screen light will be open during adjustment tap symbol and Domestic Hot Water temperature value will flash You can adjust the hot tap...

Page 10: ...n Device installation shall only be performed by the Warmhaus Authorised Service The dual cable required for installation is supplied by the dealer consumer Maintenance and Service Life Warmhaus room...

Page 11: ...r systems to operate at high temperatures as standard P24 Child Protection This feature is disabled as default factory setting 0 Child Protection key lock is enabled when parameter is adjusted to 1 Ke...

Page 12: ...stion or electrode Condensate Syphon blocked Electronic board 1 Call for authorised service E 09 No water circulation in the system Boiler does not work E09 error code flashing on the screen Lack of w...

Page 13: ...mmunication error Boiler does not work E43 error code flashing on the screen after 1 minute of communication error Opentherm line disconnected 1 Remove energy from boiler and re energize E43 will be r...

Page 14: ...disconnections Gas valve failure 1 Call for authorised service E 88 Fault of electronic gas valve managing circuit Boiler does not work E88 error code flashing on the screen Cabling disconnections Ga...

Page 15: ...ectrode Electrode position Combustion calibration 1 Call for authorised service E 96 Flue or air suction way blockage Boiler does not work E96 error code flashing on the screen Blockage in flue Blocka...

Page 16: ...and also you can acquire approximately 6 power saving with every degree of temperature decrease Ventilation Do not leave windows slightly open for ventilating room rooms In such case continuous heat l...

Page 17: ...oduct information listed elsewhere may result in different test conditions Only the data that is contained in this product information is applicable and valid Electricity Fuel HANDING OVER After compl...

Page 18: ...fuel consumption AFC GJ 11 18 11 18 Condensing boiler Yes Yes Yes Yes Low temperature boiler Yes Yes Yes Yes Combi Boilernation boiler Yes Yes Yes Yes B1 Boiler No No No No Room boiler with combi boil...

Page 19: ...19 warmhaus co uk...

Page 20: ...act Cadent s Plant Protection team Cadent provide first line support for our assets Gas Emergencies If you smell gas or have accidentally hit the NTS pipeline please call us urgently 0800 111 999 Elec...

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