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3.6. RECOMMENDATIONS FOR 

ECONOMICAL USE OF COMBI BOILER

Your combi boiler is adjusted at ECO mode for economic 
use, we recommend not to change.

Correct Capacity Selection

Heat loss calculation of the combi boiler location should 
be made correctly and combi boiler capacity should 
comply with this calculation. 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 more frequently opened 
and closed. Therefore, combi 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 combi boiler has the highest thickness insulation of 
its class, heat loss is minimized.

Radiators

Ensure balancing our pressure distribution of your 
radiator installation within the house 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). Adjustment of temperature adjuster as 
low ensures 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 combi boiler will operate more economically as 
you will have the chance to adjust requested room 
temperature according to comfort and economy timings 
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, which 
distinguish it, unchanged over time, you must at 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 local standards in 
force. 

We recommend stipulating a yearly cleaning and 
maintenance contract with an authorised local firm.

3.7. ISSUES REQUIRED TO BE 

TAKEN INTO CONSIDERATION FOR 

WARRANTY CONDITIONS

This warranty given by WARMHAUS does not cover 
elimination of failures arising from abnormal use of the 
product and also out of the warranty scope for below 
given situations

1. 

Damages and failures occurring in devices which are 
not first started by Warmhaus Authorized 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 our 
Authorized 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.

 Defined periodical maintenance operations by our 

Authorized Services,

Summary of Contents for MINERWA 25

Page 1: ...MINERWA 25 CONDENSING COMBI BOILER INSTALLATION USER MANUAL...

Page 2: ...2 warmhaus com MINERWA 25...

Page 3: ...Emptying Radiator Installation 15 2 3 3 Circulation Pump 17 2 4 CONTROLS FOR INITIAL OPERATION OF COMBI BOILER 18 2 5 COMBI COMPONENTS 18 2 6 COMBI BOILER FLUE CONNECTIONS 19 2 6 1 Exhaust Gas Flue Pi...

Page 4: ...ers authorized by a gas company located at your city should be preferred for performing project and etude studies In order to enable use of the combi boiler with LPG bottles or LPG tanks conversation...

Page 5: ...g more detailed information regarding legal regulations on installation of gas fired heating devices www warmhaus com Manufacturer WARMHAUS Is tma ve So utma Sistemleri Tic A Bursa I ktepe OSB Mah Par...

Page 6: ...L3B P Natural Gas 20 mbar G20 Available DE YES I 2L Natural Gas 25 mbar G25 Available NL YES I 2E Natural Gas 25 mbar G25 Available BE FR YES I 2ELL Natural Gas 20 mbar G25 Available DE YES II 2L3P Na...

Page 7: ...2H3B P Buthane Gas 50 mbar G30 Available AT CH SK YES II 2E3B P Buthane Gas 50 mbar G30 Available DE YES II 2L3B P Buthane Gas 30 mbar G30 Available NL YES II 2ELL3B P Buthane Gas 50 mbar G30 Availabl...

Page 8: ...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...

Page 9: ...mm 110 mm 379 mm 595 mm 201 mm 129 mm 125 mm 575 mm 598 mm 89 mm 150 11 606 000076 G3 4 GAS G3 4 G3 4 G1 2 G1 2 MODE RESET Do not leave packing materials plastic nylon bags etc at places to be reached...

Page 10: ...ll 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 boiler shall be out of the w...

Page 11: ...gn substances therefore required filter systems must be available in the gas supply line for ensuring purification of the fuel 2 2 7 In Case of Using LPG Tank For heat requirements over 24 kW LPG tank...

Page 12: ...e downwards Figure 8 Combi boiler bottled gas connection LPG LPG Ball Valve COLLECTOR 370 mmH2O 2 kg Hood 12 kg or 24 kg LPG BOTTLE 2 2 9 Filling the siphon for Condensation Line After hanging the boi...

Page 13: ...h connection of the combi boiler and electrical connections not being made by a competent electrician in accordance with directives and standards in force Also ensure that the electricity installation...

Page 14: ...WHEN THE TIMER OR OPENTHERM ROOM THERMOSTAT CONNECTED THE BOILER ROOM THERMOSTAT ORANGE WHITE GREEN W W O O G G COMBI BOILER CONTROL ACCESSORIES RC07 Modulated Weekly Program Scheduled Cable room the...

Page 15: ...ombi boiler can function at minimum 0 5 bar tap water pressure and that corresponds to a very low flow rate and therefore it is quite probable that the requested tap water temperature can not be provi...

Page 16: ...al Drain Gulley or Rainwater Hopper 45 cross sectional drainage pipe outlet Open air flusher Figure 15 Outside Connection of Condensate Water Drainage Pipe SECTION 2 INST Outdoor flusher Condensate Wa...

Page 17: ...r Min 19 mm Inner pipe 75 mm flusher bathroom shower drainage combined with other drainage lines Minimum 30 mm Inner pipe Water Air proof insulation 25 Distance under grid 45 pipe termination 75 100 F...

Page 18: ...3 DHW Filter 34 DHW Inlet 1 3 4 5 6 7 8 10 14 2 18 20 21 24 26 29 30 31 32 34 19 15 16 13 33 9 11 12 23 27 28 25 17 22 Figure 23 Components of Combi Boiler 2 4 CONTROLS FOR INITIAL OPERATION OF COMBI...

Page 19: ...alled without suitable protection against UV and weather conditions to distances over 40 cm and exteriors Every pipe is defined with an explanatory and discriminative Warmhaus mark mentioned in remark...

Page 20: ...t system to which the boiler can be connected condensate flow into the appliance is not allowed Maximum allowable temperature of combustion air 40 C maximum allowable recirculation rate of 10 under wi...

Page 21: ...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...

Page 22: ...nal on the same wall 1500 N Horizontally from a terminal on the same wall 300 R From adjacent wall to flue vertical only 300 S From an adjacent opening window vertical only 1000 T Adjacent to windows...

Page 23: ...3_1 press down and tighten the screw Fig 33_6 to secure the flue elbow see picture B Fit the outer and inner wall flanges Fig 33_13 14 on the terminal pipe Fig 33_12 Connect flue to the boiler positio...

Page 24: ...ndard Flue Set Elbow 90 b Flue Extension Pipe c Additional 90 Elbow d Standard Flue Set Pipe Figure 38 II Two 90 elbow sample flue installations d a b c a b c d 9 m Figure 37 I Single 90 bended sample...

Page 25: ...connections 60 100mm vertical flue set should not exceed 11 m A 60 100 mm L max 11 m A Figure 40 Vertical flue set installation ATTENTION For C3 boilers the terminal outlets from separete combustion...

Page 26: ...alent length L8 0 5 m L9 0 5 m 45 elbow equivalent length L10 1 5 m L11 1 0 m 90 elbow equivalent length L12 1 5 m L Total 12 m 12 m Lmax 30 m Correct in implementation Figure 42 Hermetic flue type in...

Page 27: ...e 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 from the flue terminal this is normal It is the responsibi...

Page 28: ...0 100 Condensing Flue Extension L 1000 mm 153 11 660 600111 Black 153 11 660 600015 White 153 11 660 600118 Grey 60 100 Condensing Flue Extension L 2000 mm 153 11 660 600112 Black 153 11 660 600016 Wh...

Page 29: ...3 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 600093 80 Twin Flue Elbow...

Page 30: ...rminal Kit With 1 m Extension and Two Brackets 153 11 660 6000 31 Plume Displacement Kit Elbow 900 153 11 660 6000 32 Plume Displacement Kit Elbow 450 153 11 660 6000 33 Plume Terminal 153 11 660 6000...

Page 31: ...assageway check that combustion 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...

Page 32: ...or control device is connected ensure that it is at ON position If you will shut off the combi boiler for a long period perform below written operations Discharge the radiator installation water not c...

Page 33: ...liminating the failure in case of combi boiler failure MODE Used for Winter Summer OFF mode adjustment Operating modes and related notifications OPERATING MODES EXPLANATIONS CLOSED or OFF WINTER Radia...

Page 34: ...s started flame modulation symbol is seen at the middle section of the screen At that position you can increase and decrease the temperature with CH temperature adjustment buttons see Figure 40 3 betw...

Page 35: ...ons c Failing to follow instructions given in this book and room thermostat booklets Important It is compulsory to have two different lines according to legal regulations being in force regarding elec...

Page 36: ...ng passive active In order to rapidly prepare DHW faster and reducing the cold water consumption during waiting grid water is heated in the plate exchanger and ready hot water is stored Activation of...

Page 37: ...e has a drain cock first turn the boiler off and let the pressure drop to 1 1 5 bar then switch it on again 4 If the pressure increase occurs again call an authorized service E 04 Domestic heating wat...

Page 38: ...E 11 Gas valve modulator disconnected Boiler does not work E11 error code flashing on the screen Gas valve harness 1 Call for authorised service 2 Check gas valve between board and gas valve E 13 Exh...

Page 39: ...aximum allowed consecutive lock out reset reached Usable RESET number reached Too many consecutive lock out failures followed by reset due to other possible causes 1 Removing power supply reset will b...

Page 40: ...me from out side room units or thermosad bridge etc 1 Reset Restart boiler 2 Call for authorised service E 62 Calibration request Boiler does not work E62 error code flashing on the screen Calibration...

Page 41: ...blem on electronic gas valve driver Boiler does not work E80 error code flashing on the screen Electronic board Gas valve failiure 1 Call for authorised service at first E 81 Lock out for combustion p...

Page 42: ...or code flashing on the screen Aging or rust on the electrode Recirculation on fluegas path Blokage on flue or wrong flue Electrode position Cabling disconnections Combustion calibration Electronic bo...

Page 43: ...on Combustion calibration 1 Call for authorised service at first 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...

Page 44: ...om 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 co...

Page 45: ...hall be performed against payment Our distinguished customer we believe the importance of providing good products to you as well as rendering good services Recommendations and Data to be Followed 1 Wh...

Page 46: ...0 l h flow rate mH2O 7 Pump pressure at 500 l h flow rate mH2O 7 3 Max Pump Flow Rate h 2500 Pump Energy Efficiency Index EEI 0 20 Domestic Hot Water Circuit Maximum DHW Heat Input kW 31 Minimum DHW H...

Page 47: ...ntained in this product information is applicable and valid Electricity Fuel Natural Gas G20 HANDING OVER After completing the installation and commissioning of the system the installer should hand ov...

Page 48: ...n Qfuel kWh 14 809 23 152 Annual fuel consumption AFC GJ 11 18 Condensing boiler Yes Yes Low temperature boiler Yes Yes Combination boiler Yes Yes B1 Boiler No No Room boiler with combined heat and po...

Page 49: ...49 warmhaus com 3 10 ENERGY LABEL...

Page 50: ...50 warmhaus com...

Page 51: ...nt have 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...

Page 52: ...Minerwa Installation User Manual code 150 11 606 000081 Revision Date R01 11 2019 MINERWA CONDENSING COMBI BOILER INSTALLATION USER MANUAL...

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