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2.6. RECOMMENDATIONS FOR ECONOMICAL USE OF

Your is adjusted at ECO mode for economic use, we recommend not to 

change it

Correct Capacity Selection

Heat loss calculation of the boiler location should be made correctly 

and boiler capacity should be selected accordingly. Devices not having 

adequate capacity shall give late responses to heating requests, devices 

with higher capacity may cause discomfort and more fuel consumption as 

they turn ON and OFF more frequently. Therefore, boiler capacities should 

be selected according to the place used.

Insulation

Insulation of your building is the most important item reducing the heat 

loss and gas consumption. However, as your has the highest thickness 

insulation of its class, heat loss is minimized.

Radiators

Ensure balancing the rest pump head of the appliance by making reduction 

adjustments from radiator valves. Placing furnitures in front of radiators 

prevents air circulation and causes discomfort and more fuel consumption. 

Reducing radiator valves of rooms not used for a long period or if 

thermostatic radiator valve is used, bringing to the lowest position then, 

closing room doors will provide saving.

Domestic Hot Water

Always adjust the domestic hot water temperature as (38~42 °C) for 

a considerable power saving. In addition, high domestic hot water 

temperatures cause strong calcification and that negatively affects 

operation of the device (for instance, longer heating periods, less flow rate).

Thermostatic Radiator Valves 

You can both acquire savings and comfort by balancing the heat distribution 

among the house by using Thermostatic Radiator Valves.

Room Thermostats 

Your boiler will operate more economically as you will have the chance 

to adjust requested room temperature according to comfort via room 

thermostats. Thus, you can adjust temperature of your room as you wish, 

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 loss will occur and not having any certain 

improvement in the room air.

Fully opening windows for a short period provides a better result. Bring 

thermostatic radiator valves to lowest position when ventilating rooms.

Cleaning And Maintenance

Attention:

 to preserve the boiler’s integrity and keep the safety features, 

performance and reliability, you must at least execute maintenance 

operations on a yearly basis in compliance with national, regional, or local 

standards in force. 

We recommend a yearly cleaning and maintenance contract with an 

authorised local firm.

2.7. ISSUES REQUIRED TO BE TAKEN INTO 

CONSIDERATION FOR WARRANTY CONDITIONS

Under below given conditions, warrnaty of the product will be void :

1. 

Damages and failures occurring in devices which are not commissioned 

Authorised Services,

2.

  Damages and failures arising from use of the product contrary to items 

given in User’s Manual and using out of its intended purpose.

3.

  Damages and failures arising from wrong type selection,

4.

  Damages and failures arising from maintenance and repairs performed 

by persons other than Authorised Services,

5.

 Damages and failures occurring due to transportation, unloading, 

loading, storing, external physical (Crushing, scratches, fractures) and 

chemical factors following delivery of the Product,

6.

  Damages and failures arising from fire and lightning,

7.

  Damages and failures arising from false fuel use and fuel characteristics,

8.

  Low or excessive voltage, unearthed socket usage;

9.

  Damages and failures arising from faulty electricity installations,

10.

Damages and failures arising from failing to perform timely annual 

maintenance and cleaning,

11.

Damages and failures arising from frost/icing or occurring due to using 

in the outdoor places (open balcony, etc.).

12.

Damages and failures arising from using water out of the water values 

defined in device user’s guide,

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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