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MHS Boilers EURON 24, Installation And Operation Manual, Page: 5 / 49

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MHS Boilers EURON 24 Installation And Operation Manual Download Page 5

 

5 of 49

 

Product Description

 

Overview

 

 

EURON HG

 

Legend

 

1 

Air intake openings 

2 

Concentric air intake/flue gas connection 

3 

Manual air vent 

4 

Flue gas discharge / Flue hood 

5 

Burner Door / Burner 

6 

Stainless steel heat exchanger 

7 

Condensate drain hose 

8 

NTC Return sensor 

9 

NTC Flow Sensor 

10 

Condensate discharge Siphon 

11 

Low water pressure switch 

12 

Supply air hose 

13 

Heating system pressure gauge 

14 

Pump 

15 

Gas valve 

16 

Premix air/gas burner supply tube 

17 

Modulating burner fan 

18 

Ionisation electrode 

19 

Ignition electrode 

20 

Ignition transformer 

21 

STB flue gas 85 °C 

22 

Air/flue gas sampling points 

 

EURON 30 HSG Combi 

Legend

 

1 

Air intake openings 

2 

Concentric air intake/flue gas connection 

3 

Manual air vent 

4 

Flue gas discharge connection 

5 

Burner 

6 

Stainless steel heat exchanger 

7 

Condensation drain hose 

8 

NTC Flow sensor 

9 

NTC Return sensor 

10 

3 way diverter valve  

11 

Condensate discharge Siphon 

12 

NTC domestic water sensor 

13 

Low water pressure switch 

14 

Supply air hose 

15 

Domestic hot water plate heat exchanger 

16 

Cold water inlet with filter 

17 

Hot water flow regulator 

18 

Heating system manometer 

19 

Pump 

20 

Gas valve 

21 

Premix air/gas burner supply tube 

22 

Modulating burner fan 

23 

Ionisation electrode 

24 

Ignition electrode 

25 

Ignition transformer 

26 

STB flue gas 85 °C 

27 

Air/flue gas sampling point

 

 

 

Euron 30 HSG

 

Summary of Contents for EURON 24

Page 1: ...1 of 49 Installation and Operation Guide EURON 24 30HG EURON 30 HSG Manual Ref L307...

Page 2: ...ning 19 Commissioning Preparation for operation Control Panel 21 22 Parameter adjustment to control unit QAA73 23 Flue gas Measurement and Adjustment 24 27 Safety check of heating appliance 28 Paramet...

Page 3: ...the information in the manual and the instruction plate on the burner equipment Instructions data badge and warning labels on the boiler must never be removed or altered If damaged or missing should b...

Page 4: ...r suitable for all the materials in the system before the boiler is put into use Failure to do this may affect the boilers warranty No Chemical anti corrosion medium should be introduced to the system...

Page 5: ...85 C 22 Air flue gas sampling points EURON 30 HSG Combi Legend 1 Air intake openings 2 Concentric air intake flue gas connection 3 Manual air vent 4 Flue gas discharge connection 5 Burner 6 Stainless...

Page 6: ...low rate with Natural gas g s 10 19 12 47 Max Flue gas temperature C 74 71 Gas category 112H3B P 112E3P Flue Classification B23 C13x C33x C43x C53x C63x C83x Electrical protection rating IPX4D NOx Cla...

Page 7: ...G Gas flow pressure min max mbar 18 25 Natural Gas 50 LPG Flue gas mass flow rate with Natural gas g s 12 47 Max Flue gas temperature C 71 Gas category 112H3B P 112E3P Flue Classification B23 C13x C33...

Page 8: ...3 4 E Return 3 4 G Condensation discharge 28 mm H Siphon Water connection Gas connection EURON 24 HSG Combi EURON 30 HSG Combi Legend A Flow 3 4 B Hot water outlet 1 2 C Gas inlet 3 4 D Cold water inl...

Page 9: ...llation Minimum clearances Minimum clearances For servicing of Boiler the minimum clearances specified in the diagram must be observed Wall mounting Fix to the wall using the mounting bracket and fixi...

Page 10: ...Note The Gas Isolation Valve that is included as part of the connection bracket assembly for Boiler versions has a fire safety feature and is a thermally closing type device The slam shut action of t...

Page 11: ...g steps Remove the 4 screws 1 from the underside of the housing 2 either side Open the Release clips on top of the boiler Casing Pull the Boiler casing towards you You will now have acces to the inter...

Page 12: ...ired gas pressure for either natural gas or LPG Water connection All connections for water and gas are as per the illustration on page 8 Ensure that the cold water main pressure does not exceed 6 bar...

Page 13: ...12 NTC Service water sensor Combi 13 Service water plate heat exchanger Combi 14 Service water flow control Combi 15 Cold water filter Combi 16 Automatic heating bypass 17 3 bar safety valve 18 Pressu...

Page 14: ...252 800 325 142 5 308 102 700 373 5 207 361 165 600 419 5 269 409 231 500 459 5 320 463 287 400 491 5 365 503 343 300 522 408 5 548 394 200 547 440 561 440 100 568 470 588 467 0 584 494 601 491 Legend...

Page 15: ...of the water supply installation heating or gas installation Please note the appliance is not protected against damage from lightning strikes If the mains fuses are to be changed use 2A Quick Blow fu...

Page 16: ...iler communication AGU2 514 Clip in Module For system incorporating pumped Heating circuit Pumped HWS Primary see P46 scheme 1 AGU2 511 Clip in Module BMS Run Fault Indication 0 10v input Clip RVA47 C...

Page 17: ...plied from a outside the building Condensate connection For every m 3 of natural gas burnt 0 7 to 1 0 litres of condensate is produced as a consequence of the very high utilisation of energy This of c...

Page 18: ...MHS is recommended Connection kits for fluing of the air flue gas are supplied separately from the appliance depending on the various installation options This boiler comes ready for connection to a...

Page 19: ...lue discharge through the roof C43 Room Sealed appliances connected in cascade connected to a common U shaped concentric supply flue discharge at the appliance C53 Room sealed appliance connected to a...

Page 20: ...boiler 10 This sets the pump of the heating appliance in operation and there are three consecutive attempts to ignite the burner After the third attempt the electronics lock the appliance as the gas s...

Page 21: ...e Winter and summer operation Use MODE 9 button to change changed between winter and summer operation and vice versa When LED 13 is illuminated the boiler is on winter operation If an outside air temp...

Page 22: ...ng conditions of heating appliance Pressing Key 7 again will again show the service water temperature reading on the display After a few minutes the display returns to boiler temperature Boiler Lock O...

Page 23: ...A73 User Press program key 2 Scroll through Parameters End User Operator Parameter 1 50 see Page 40 QAA73 Engineer Press and Hold program keys 1 and 2 for approx 5 secs Specialist Parameter 51 98 see...

Page 24: ...e operation of the boiler if the temperature exceeds 45 C Resume operation after the boiler has cooled Access for Analyser Readings First unscrew the locking screw 1 between the flue gas test points T...

Page 25: ...ustion settings checking for C02 value in conjunction with the chart below To adjust the combusution proceed as follows Remove plastic cap and then adjust High fire 1 on gas valve using a flat bladed...

Page 26: ...appliance casing fitted If values remain within the limits given in the chart no further regulation is necessary After these measures the gas flow rate on the counter should be checked taking into ac...

Page 27: ...he Flue Cleaner Key 8 until the red LED 3 starts to flash double flash The display will now alternate between the flow temperature of the boiler followed by the figure 1 and then figure 00 Using knob...

Page 28: ...d the display shows safety code 111 To resume operation after cooling of the appliance press RESET 6 key Protection system of heating appliance The boiler is protected from operating faults by interna...

Page 29: ...emperature reading C A2 Service water temperature reading C A3 not used A4 Reading for operating phase of boiler b0 Internal code in case of fault b1 Boiler return temperature reading C b3 Reading of...

Page 30: ...ined in changeover kit as shown in the preceding illustrations 7 Reinstall the ventilator venturi gauge gas valve group in the boiler 8 Install the air screen see chart page 31 for liquid gas containe...

Page 31: ...changeover Chart for gas changeover Output Gas type Screen for gas Screen for air 24 HG G20 G25 Natural gas H LL None None G31 Propane 0 4 6 mm 53 8mm 30 HSG HG G20 G25 Natural gas H LL None None G31...

Page 32: ...42 1 42 1 40 min 0 49 0 49 0 57 0 36 0 36 0 36 Gas consumption after 10 Min at 70 of max output Natural gas m3 h Liquid gas kg h 0 22 0 22 0 26 0 17 0 17 0 16 O CO I o I i CM Lower Wobbe index 15 C 1...

Page 33: ...er can fall below 0 C it is advised to mix the water of the boiler with antifreeze to avoid frequent evacuation Check carefully when using antifreeze if this is suitable for stainless steel from which...

Page 34: ...moved For cleaning you may use water a cleaning agent citric acid and use a non metal brush Afterwards flush with water Note Never Clean the Burner itself Cleaning of the Siphon To gain access to the...

Page 35: ...cessary fan speed not achieved 160 282 Blocked Fan 161 110 Measured fan speed above upper limit 183 105 Circuit board in programming mode Safety cut off Display Internal Code bO Cause 20 142 Short cir...

Page 36: ...cuit open 61 Remote control or room temperature sensor signal distrubed 62 Connection of an incompatible remote control or time switch 92 Failure of electronic hardware 133 101 Flame attend of safety...

Page 37: ...oved Personnel This person shall be responsible for correct implementation of Mantainence activities See Page 11 for cover removal details Prior to maintenance work the appliance must be isolated from...

Page 38: ...r plate as well as the ceramic fibre seal 9 for damage and replace if necessary Dismantling Heat exchanger Empty appliance of water Disconnect condensate drainage hoses 10 Disconnect supply and return...

Page 39: ...ion plugs cause malfunction messages replace ignition plugs Visual check of burner if necessary clean with brush nylon brush or vacuum cleaner Visual check of Fan and venturi burner if necessary clean...

Page 40: ...witch Heating Zone Second OFF 00 00 24 00 15 Time Switch Heating Zone Third ON 00 00 24 00 16 Time Switch Heating Zone Third OFF 00 00 24 00 30 DHW Zone Day Selection Mo Su Week Day Required 31 Time S...

Page 41: ...0 Compensation Curves Set Point for Time Switch 1 2 5 40 32 71 Minimum Boiler Flow Temperature for Time Switch 1 8 Max 8 72 Maximum Boiler Flow Temperature for Time Switch 1 Min 90 80 73 Compensation...

Page 42: ...temperature 30 C Summer Winter changeover disabled not active 520 dTrAbsenk 10 K Drawdown of the room setpoint at timer connection dTrAbsenk 0 timer works directly off heating demand 532 Sth1 15 Stee...

Page 43: ...1 Y for heating circuit 2 of LMU Value 0 no room unit effect 1 heating circuit 1 of room unit 2 heating circuit 2 of room unit 555 KonfigRg1 0010000 Installation options for DHW priority installation...

Page 44: ...rDia2 2 nd Historical Fault Operating Error Code 706 Stoer3 3 rd Historical Fault N of Occurances 707 StrPn3 3 rd Historical Fault Operating Phase 708 StrDia3 3 rd Historical Fault Operating Error Cod...

Page 45: ...Appendix Flue Termination Guidelines Please note that this diagram is only intended for reference purposes only and that definitie guidance should be sort from BS 5440 2 2000 BS6644 2005 2005 and or I...

Page 46: ...2 51 558 Bit 2 Set to 0 for HWS Sensor or 1 for HWS Volt free Enable if used for Hot Water 618 6 619 10 Note QAA73 is required to enable required Parameter changes For Hot Water Pump Use Divertor valv...

Page 47: ...47 Para 16 30 Para 140 1 Para 141 0 Para 142 1 Euron 1 Changes made using QAA73 Para 516 30 Para 543 1 Para 552 80 Para 604 Bit 4 Set to 1 should already be at at 1 all others should be Zero Para 605...

Page 48: ...48 of 49 Notes...

Page 49: ...HS B OI LE RS ELCO heating solutions Exclusively from MHS Boilers 3 Juniper West Fenton Way Southfields Business Park Basildon Essex SS15 6SJ Tel 01268 546700 Fax 01268 888250 www mhsboilers com Manua...

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