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1.1. BOILER DESCRIPTION

The Minerwa 25 System Boiler is a high-performance wall mounted energy 

efficient unit providing heat for wet central heating systems.
The latest Electronic Gas Adaptive System and Full Premix feature detects 

the gas quality instantaneously and keeps the combustion quality constant. 

It provides up to 108% efficiency gross and excellent energy savings. 

DANGER

This safety warning indicates that severe and life-threatening 

personal injury will occur.

WARNING

This safety warning indicates that severe and life-threatening 

personal injury may occur.

ATTENTION

This safety warning indicates that moderate personal injury may 

occur.

 

 

RISK OF ELECTRIC SHOCK 

This safety warning indicates “DANGER Risk of Electric
Shock”.

CAUTION

This icon indicates that damage could occur to products and 

materials.

 

INFORMATION

This image indicates information you should read and adhere to 

for the correct installation of our appliances.

PRV 

Pressure Relief Valve

NG 

Natural Gas

LPG 

Liquid Propane Gas

kW Kilowatts
CH 

Central Heating

DHW 

Domestic Hot Water

LHS 

Left Hand Side

RHS 

Right Hand Side

Mbar Millibar
ECV 

Emergency Control Valve

LCD 

Liquid Crystal Display

FGA 

Flue Gas Analyser

LDF 

Leak Detection Fluid

1.2. SAFETY INSTRUCTIONS:

 

ATTENTION

Please read these instructions fully before installing the appliance:

•  These instructions are specific to the model   illustrated on the front cover 

and detailed in the technical data section of this manual and must not be 
used for any other Warmhaus models.

•  This appliance must only be installed by a     competent Gas Safe registered 

engineer and if in Ireland an RGI (Registered Gas Installer) and     failure to 
adhere to this could lead to            prosecution.

•  These installation instructions only apply to GB and IE and must be 

adhered to with the          exception of all statutory regulations.

• These appliances are CE certified for safety and performance and 

therefore must in no way be altered or have any device or controls fitted 
unless it is approved in this document or in writing from Warmhaus.

•  The intended use for this appliance is to heat water and supply DHW in 

domestic premises.

•  Always refer to the appliance data badge for correct specifications and 

ensure the boiler is operating within the safety settings outlined by 
Warmhaus.

•  Do not modify our flue system, and always use only the Warmhaus 

approved flue with this appliance.

•  Ensure Warmhaus original flue components including seals and gaskets 

are used for the installation of this appliance.

•  The installation of the appliance and controls must be done in accordance 

to the current Gas Safety (Installation and Use) Regulations.

If you smell gas:

•  Do not create flames or sparks, do not operate electric switches or unplug 

any appliances.

•  Do not use telephones or operate any doorbells.
•  Turn off the gas supply at the gas meter or an            appropriate emergency 

control valve.

•  Open doors and windows in the property and advise any neigh boring 

properties to adhere to 1,2 and 4.

•  Call the National Gas Emergency Service – 0800111999, or in Ireland 1850 

20 50 50.

•  Prevent people from entering the property.
•  For LPG contact the number for the supplier given on the side of the gas 

tank.

If you see any damage to the boiler flue or have a carbon monoxide 

detector and the warning noise sounds:

•  Turn off the appliance.
•  Open doors and windows.
•  Leave the property and prevent anybody entering.
•  Contact either your installer or the Emergency Gas Supplier – 080011199, 

or in Ireland 1850 20 50 50.

•  Do not use until the issue is identified and the appropriate rectifications 

have been carried out.

Electrical work must be carried out by a qualified electrician and in 

accordance to all I.E.E and current statutory regulations.

When maintaining a Warmhaus boiler you must only use original and 

approved Warmhaus spare parts.

1.  INTRODUCTION

Summary of Contents for Minerwa 25 System IE

Page 1: ...MinerWa 25 System IE CONDENSING SYSTEM BOILER INSTALLATION SERVICE MANUAL...

Page 2: ...2 warmhaus com...

Page 3: ...explanation of its operation The installer is legally required to complete a commissioning checklist as a means of complying with the appropriate Building Regulations England and Wales All installati...

Page 4: ......

Page 5: ...N SPLAN WIRING DIAGRAM 28 3 16 4 EXTERNAL CONTROL CONNECTION YPLAN WIRING DIAGRAM 29 4 COMMISSIONING 30 4 1 DISPLAY FUNCTION 30 4 1 1 SET TRANSPARENT PARAMETERS MENU TSP 30 4 1 2 PARAMETERS 31 4 1 3 P...

Page 6: ...of all statutory regulations These appliances are CE certified for safety and performance and therefore must in no way be altered or have any device or controls fitted unless it is approved in this do...

Page 7: ...to your user manual and arrange professional assistance where advised Before operating your Warmhaus boiler please read the instructions supplied with the boiler For installation of this appliance in...

Page 8: ...Combustion Specification G20 G31 Gas Rate Max m h 2 38 0 92 Gas Rate Min m h 0 37 0 11 C02 Maximum Power AUTO CALIBRATION ONLY 8 7 9 2 10 10 5 C02 Minimum Power AUTO CALIBRATION ONLY 8 6 9 4 10 10 5...

Page 9: ...is can be an exception for a single story open plan dwelling where the living area is more than 70 of the useable floor area in this case this zone can be controlled and treated as a single zone Indiv...

Page 10: ..._____ Name ___________________________________ Address ___________________________________ ___________________________________ Eircode ___________________________________ Phone Number ________________...

Page 11: ...ny controls on the boiler All roof space installations should comply to BS5410 part 1 roof space installations Storage Do not store any flammable materials around the location of the boiler or chemica...

Page 12: ...Debris in the existing heating system can cause damage to the boiler unit and cause efficiency issues and even void the appliance warranty if the correct cleaning has not been carried out 2 7 ELECTRIC...

Page 13: ...r external corner or to a boundary alongside the terminal 300 I Above ground roof or balcony level 300 J From a surface or a boundary facing terminal 600 K From a terminal facing the terminal 1200 L F...

Page 14: ...ling of the fixing holes for the mounting bracket can also be done as per the guidance on the wall mounting template The template also displays the pipe centers and correct pipe work layout for the co...

Page 15: ...es and a connector pipe for the installer to connect to the boiler unit The hardware pack supplied is Flow 22 mm isolation valve compression 2 x Copper end feed adaptor 22 mm to 3 4 Gas 22 mm isolatio...

Page 16: ...a label if the inhibitor manufacturer supplied this or with a suitable method so that the installation date can be monitored for service Inhibitor levels should be monitored and checked on service ma...

Page 17: ...d be used with dowels 60 100 mm Concentric ue systems information Only approved Warmhaus flue systems can be connected to our appliance and no other flues have been tested or approved to work with any...

Page 18: ...CAUTION For security purposes system boiler suction discharge flue should not block even temporarily 3 11 INSTALLATION WITH VERTICAL FLUE SETS 60 100 MM Your system boiler can also be vertically conn...

Page 19: ...tion and air supply circuits shall fit inside a square of 50 cm and that the distance between the planes of the two orifices shall be less than 50 cm Detail A Waste gas vertical outlet chimney set Roo...

Page 20: ...1 660 600014 White 153 11 660 600117 Grey 60 100 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 1...

Page 21: ...Gas Installations 2 If the terminal discharges onto a pathway or passageway check that combustion products will not cause a nuisance and that the terminal will not obstruct the passageway 3 If a termi...

Page 22: ...eter 19mm 9 Pipe size transition 10 Minimum internal diameter 30mm 11 Water Weatherproof insulation 12 Drain cover leaf guard INTERNAL CONDENSATE PIPE DISCHARGE TERMINATION External termination to rai...

Page 23: ...on of a condensate pump typical method 1 Boiler 2 Visible air break at plug hole 3 75 mm sink basin bath or shower waste trap 4 Sink basin bath or shower with integral overflow 5 Open end of condensat...

Page 24: ...Minimum internal diameter 19 mm 9 Pipe size transition point 10 Minimum internal diameter 30mm 11 Water weather proof insulation EXTERNAL CONNECTIONS External termination to rainwater downpipe NB only...

Page 25: ...n point 9 Minimum internal diameter 30 mm 10 Water weatherproof insulation 11 Fit drain cover leaf guard INTERNAL CONDENSATE PIPE DISCHARGE TERMINATION Example of a purpose made soakaway 1 Condensate...

Page 26: ...26 warmhaus com 3 16 MINERWA 25 SYSTEM IE WIRING DIAGRAM WIRING DIAGRAM RISK OF ELECTRIC SHOCK...

Page 27: ...lied with the boiler To connect your low voltage external control remove the green link wire and connect your two external control cables to the two green wires on the terminal connector 3 16 2 Extern...

Page 28: ...mains voltage connected to the room stat connections on our terminal connector therefore if the system configuration is an SPLAN please follow the above image to ensure that 240v voltage will not be a...

Page 29: ...nd must not have voltage connected to the room stat position on our terminal connector therefore if the system configuration is a YPLAN you must connect the relay supplied with our boiler as per the a...

Page 30: ...ue 0 Attention Do not change this parameter 4 From this moment toggle CH to increase or CH to decrease any parameter aimed to be changed 5 Ones you reach the parameter aimed to be changed Change the p...

Page 31: ...ter 2 Flow meter AND W O DHW Sensor Algorithm P04 KT coefficient for regulation with EXT probe 4 90 30 P05 Anti fast cycles time value 1 1 minute 0 10 min 3 P06 Maximum CH power 0 100 N A P07 Ignition...

Page 32: ...hould be SET on the TsP 1 Comfort if this adjusted on TsP then Pre Heat Function is will not work 2 Disable P19 Exhaust measurement configuration 0 1 1 0 Flue thermostad 1 Flue NTC P20 Minimum value f...

Page 33: ...value 1 10 seconds if Preheat adjusted time value 2 0 60 sec x 10 12 P41 Sanitary modulation with Fluxmeter 0 1 1 0 Disconnected 1 Connected P42 DHW Preheat function configuration Please check P18 fi...

Page 34: ...Automatic refill valve 5 Not used 6 Recirculation pump 7 Zone valve with OT 8 Not used P52 Automatic water refill 0 1 0 0 Not present 1 Present P53 Parameter perc combustion 0 30 N A P54 Fluxmeter val...

Page 35: ...flow regulator present 2 4 Not used P67 Button configuration selection 0 1 0 0 Push button only 1 Turning knobes with push button P68 B P paramter 1 DO NOT CHANGE 0 255 63 P69 B P paramter 1 DO NOT C...

Page 36: ...l Technical data Mark s of conformity Procedure service mode MinerWa 25 System IE granted by Warmhaus R D Pos No Operation Description GB 0 Attention This procedure must be applied by authorised perso...

Page 37: ...ve the FGA the boiler will now make some tests and when it is ready for adjustment it will display P01 and a setpoint number Step 5 Again as above insert your FGA and check the readings to see if they...

Page 38: ...ng this time 7 The boiler will be stable within 3 5 minutes after P0 AND set flame correction is displayed on the screen P0 MINIMUM POWER To increase the CO2 value press the DHW button OR to decrease...

Page 39: ...layed on the screen P0 MINIMUM POWER To increase the CO2 value press the DHW button OR to decrease the CO2 value press the DHW button Attention Calibration range is between 3 and 3 7 After adjusting t...

Page 40: ...interrrupt Make sure boiler frontal casing is totally closed and sealing of the boiler body is secured during calibration 3 Attention If the OT thermostat is connected to the boiler before start the E...

Page 41: ...d OFF for 10 cycles ON Time 20sec OFF time 15sec After each switch OFF the counting value will be decreased by 1 14 When 0 is reached the function stops and the boiler exit from the ESF automatically...

Page 42: ...heck following Informations Last 10 Failure Error codes Information by reading some real values Counters Menu 4 From AL 0 to AL9 show last 10 Error code that boiler had previously Error code shown aft...

Page 43: ...bove Until OFF symbol shown on the screen 4 The boiler should be OFF 5 Push the RESET and DHW button simultaneously 6 Wait until the approval circle complete on the LCD and release buttons 7 The Air w...

Page 44: ...t the boiler into service mode please see page for instructions Remove the air inlet test point on the flue elbow or adaptor and insert your FGA the O2 CO2 and CO reading whilst the boiler is in opera...

Page 45: ...is from a trusted source Warmhaus advise you check the data shown on the calculator routinely by carrying out a gas rate as per the current gas working practices manually and compare the figures If t...

Page 46: ...ncrease reach the Parameter P02 aimed to be changed 5 Ones you reach the parameter aimed to be changed change the parameter VALUE by using the DHW and set P02 1 6 Push the RESET button to save the adj...

Page 47: ...le CH to increase reach the Parameter P02 aimed to be changed 5 Ones you reach the parameter aimed to be changed change the parameter VALUE by using the DHW and set P02 0 6 Push the RESET button to sa...

Page 48: ...ance is maintaining maximum power output and allow the readings on the analyzer to stabilize Readings should be CO less than 300 ppm CO CO2 ratio 0 004 or below Yes Boiler is operating correctly and w...

Page 49: ...le Combustion Check Ensure the correct fitting of the front casing 5 3 DRAINING THE BOILER CH CIRCUIT CAUTION Isolate the boiler from the electric supply isolation point Carry out electrical safe isol...

Page 50: ...the 2 screws holding the ignition electrode to the combustion chamber 5 Remove the electrode 6 Fit the new ignition electrode using a new gasket 7 Ensure the correct distances are maintained between t...

Page 51: ...parameter list 6 Check P15 value on the parameter list 7 Check P22 value on the parameter list 8 Check P44 value on the parameter list 9 Check P46 value on the parameter list 10 If you wish to use th...

Page 52: ...pull the PRV forward away from the boiler to remove 5 Ensure the new PRV sealing O ring is free from damage and is suitably greased 6 Push the PRV into the hydraulic housing and ensure it correctly lo...

Page 53: ...place 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 boil...

Page 54: ...be open 4 RESET boiler and check if ok 6 Check Pump operation to check if the pump circulation through the heat exchanger is sufficient 7 Check intermittent contacts on harness carefully check pump a...

Page 55: ...in accordance with manufacturers instructions and readings are correct yes Gas rate m3 h OR ft3 h Were parts fitted delete as appropriate Yes No Parts fitted System inhibitor concentration has been ch...

Page 56: ...___________________________________ Account No ___________________________________ Phone Number ___________________________________ Email ___________________________________ RGI Number ______________...

Page 57: ......

Page 58: ...IES If you smell gas call Gas Networks Ireland 24 hour emergency line immediately or 1850 20 50 50 Don t assume somebody else has reported the smell Carbon monoxide information For further Information...

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