Certikin MBD 200 Operating, Installation And Servicing Instructions Download

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NG: GC No.

47 555 18

Corgi Work Code

1014356

LPG:

Corgi Work Code

1014373

0087

Note to the Installer:

Please leave these Instructions adjacent to the meter.

Operating, Installation and

Servicing Instructions for

MBD200

Condensing

De-Humidifier Boiler

Serial No:

LPG

Summary of Contents for MBD 200

Page 1: ...Code 1014356 LPG Corgi Work Code 1014373 0087 Note to the Installer Please leave these Instructions adjacent to the meter Operating Installation and Servicing Instructions for MBD200 Condensing De Humidifier Boiler Serial No NG LPG ...

Page 2: ...l and Heating A B during periods of heavy demand like during the Winter The operation is now fully automatic Indicators a set for each boiler Power Off Mains not connected On The boiler is connected to the Mains MBD200 1 14 02 04 Running Off There is no demand from the external controls On There is a call for a boiler to fire Flashing The boiler thermostat is off Fan Pilot and Burner These are dia...

Page 3: ...ion a boiler will fire if the temperature within it approaches 4 to 5 degrees Centigrade It will do this even when turned to Off and can only be inhibited by removing the Permanent Live supply to the boiler Adequate arrangements for completely draining the system by provision of drain cocks MUST be pro vided Gas Safety Installation and Use Regulations as amended It is the law that all gas applianc...

Page 4: ... is modified for the purpose Details of essential features of cupboard compartment design including airing cupboard installations are given in BS 6798 In siting the boiler the following limitations MUST be observed 1 The position selected for installation MUST allow adequate space for servicing in front of the boiler and for air circulation around the boiler 2 This position MUST also permit the pr...

Page 5: ... pipes run through roof spaces and ventilated underfloor spaces A Drain Tap is provided and should be installed in an accessible position on an unused end of the Heating manifold Any other installed Draining taps should be at least nominal size and be in accord ance with BS 2879 Condensate Drain Refer to Fig 2 and 12 A condensate drain is provided on the boiler this drain must be connected to the ...

Page 6: ...ide the bathroom Note Where a room sealed appliance is installed in a room containing a Pool Bath or Shower the appliance any electrical switch or appliance control utilising mains electricity should be so situated that it cannot be touched by a person using the bath or shower The appliance incorporates a 12V DC switching circuit for connection to system controls in wet areas All such system contr...

Page 7: ...itted the terminal should be at its centre Plumbing If the requirement for Heating exceeds 50 000 Btu h 15kW the Flow and Return pipework from the appliance must be 28mm until the heat load allows smaller bore pipework The appliance includes a pump overun devices and there must be a flow path in the system at all times An automatic bypass has been provided in the Heating circuit for this reason Ne...

Page 8: ...or sucking in air The design temperature difference across the boiler for opti mum operating efficiency is 20ºC If thermostatic valves or zone valves are used ensure the minimum flow shown in the Technical Data on page 21 is possible Electrical Connections WARNING The appliance MUST be earthed All wiring for the boiler and system controls MUST conform to I E E Wiring Regulations and work should be...

Page 9: ...ces running Set the burner pressures to the correct pressure by using a manometer connected to the control and adjusting the regulator to the desired input see the charts below and Fig 1 Low water content fabricated boilers are vulnerable to damage by air particularly when the system water is hard Contains a lot of dissolved calcium salts The result of this damage is evident in noisy boilers and r...

Page 10: ...operational noise within the system Re pressurise to required pressure and set the gauge indicator With the system hot check again for water sound ness Refit the case to the boiler For designs with heating circuits balance the system in the normal way to obtain even heating of all radiators If fitted set the cylinder thermostat to 60oC or lower if preferred Commission Check List hydraulic The key ...

Page 11: ...MBD200 10 14 02 04 Fig 1 ...

Page 12: ...rill Boiler service access Front 450mm Above 30mm Sides 30mm Flue 100 to 2000 mm Side Flue 495 515 1760 Flue Pipes Degrees 0 to 3 195 55 mm 1650 Degrees 0 to 3 C L 788 85 165 375 475 LPHW Flow Return CH Flow Gas MBD200 11 13 01 05 Installation Dimensions and Service Access Fig 2 ...

Page 13: ...5mm 28mm Gas Manifold Heating Flow Manifold LPHW Flow Manifold Return Manifold Safety Valve Valve Bypass Filling Loop Drain Tap 35mm 28mm 2 Port Valve Condensate Trap Condensate Connection Fig 2a Pipe Connections Locations ...

Page 14: ...h Fan 4 way Molex 10 way Molex Sensor GV1 GV2 1 Amp 20mm CONTROL BOARD Or Or Br Br R W Bk Gy Br R Bk Br Gy G Y G Y G Y B G Y V Gy Br R Or W Bk Gy V G Y B Brown Red Orange White Black Blue Grey Violet Green Yellow B NO 10 07 06 LpB Control Board B CONTROLS 2 PORT 12v DC DEHUM HEATING Br Or Gy VALVE E N 1 2 3 4 5 6 MBD200 13 14 2 04 Schematic Wiring one boiler only Fig 3 ...

Page 15: ...MBD200 14 14 02 04 Physical Wiring Diagram one boiler only Fig 4 ...

Page 16: ...a b c a b c a b c 230 V AC 12 V DC 12V AC 6 2Port Valve Or Gy Br B N E G Y L Clock De Humidifier HTG Thermostat 5 4 3 2 1 R Bk Or Or Y Br Br V R Ls A Ls B Direct to Molex b Pool Boost A B a Pool Heating A only c Pool Heating A B Br Gy Br Br Y N 7 Delta Variheat terminals shown 6 Models before Serial No 05017481 ...

Page 17: ... Clock De Humidifier HTG Thermostat Bk Or Br V R Ls A Ls B Direct to Molex b Pool Boost A B a Pool Heating A only c Pool Heating A B Br Br Br Y N 7 Delta Variheat terminals shown 6 N Y Or R Or Gy Br B G Y R Br R Gy 6 5 4 3 2 1 MBD200 15 10 07 06 Low Voltage System Connections Fig 5 Models after Serial No 05017481 ...

Page 18: ...MBD200 16 14 02 04 Boiler Panel Assembly Fig 6 Concentric Flue Boiler Mounting Box Side Trim Pressure Cover Front Burner Baffle Lower Burner Baffle Electrical Cover Lower Trim Controls Chassis ...

Page 19: ...MDB200 17 14 02 04 Fault Diagnosis one boiler shown ...

Page 20: ... flame is detected and the control board stops sparking and then energises the main gas valve and the burner lamp is illuminated The pilot flame lights the burner and it stays alight until turned off by the control thermostat system controls or in the case of a fault condition a safety thermostat The flue thermostat will trip if the flue exceeds a pre set temperature The overheat thermostat will t...

Page 21: ...MBD200 19 14 02 04 Concentric Flue positions Fig 7 78 mm 3 0 OUTSIDE FACE OF WALL OUTSIDE FACE OF WALL 10 mm 0 4 FLUE AIR DUCT Fig 7 ...

Page 22: ...and replace cap s Fig 12 CHANGING COMPONENTS THERE ARE NO REPAIRABLE ITEMS IF NOT WORKING AN ITEM MUST BE REPLACED The boiler is in two major sections the Case and the Electrical Tray The Major Components Diagram shows where the items are to be found pages 23 24 Behind the Electrical Tray 1 Control Boards 2 Gas Valves 3 Pumps 4 Pressure Guage 5 Safety Valve Behind the Cases 6 Fan 7 Air Pressure Sw...

Page 23: ...emove the Case Undo the wing nut holding the Fan Protection Hoop Pull the electrical connectors off the Fan Gently pull the pressure tubing off the tappings on the Flue Hood Undo the two screws holding the Flue Hood and slide forward and away Re assembly is the reverse 7 Air Pressure Switch Lower the Electrical Tray Remove the Case Pull the electrical connectors off the Air Pressure Switch Gently ...

Page 24: ...ical Tray Remove the Case Remove the Front Baffle Remove the Combustion Chamber front by releas ing the four screws Undo the Pilot tube from the Pilot Assembly and gently lever downwards away from the Pilot It has to be removed and replaced with the injector clipped into position Pull off the HT lead Pull the Burner forward off the two studs at the rear Remove the Pilot Assembly Re assembly is the...

Page 25: ... Gas Valve Sigma 840 SPMBC022 Air Pressure Switch Concentric Flues SPMBC015 379 091 Main Injector 4 1mm 24 kW NG M0919 106 386 Main Injector 2 6 mm 24 kW Propane M5110 Overheat Thermostat SPMBC019 379 314 Pilot Injector SPMBC007 386 673 Pilot Injector Propane M5149 Electrode SPMBC005 386 744 Pilot Assembly SPMBC025 381 865 Flue Thermostat 7717 379 308 HT Lead Assembly M3895 Clip on Sensor 22mm SPM...

Page 26: ...Flue Thermostat Fan Assembly Secondary Heat Exchanger Fibre Washer 2 Places Flow Pipe Control Sensor O H Stat Primary Heat Exchanger Gas Manifold HT Lead Pilot Assembly Main Injector Electrode Pilot Injector Ceramic Board Set Burner Condensate Outlet Inspection Cover Flue Gas Sampling Point Flue Hood Gasket Fig 10 ...

Page 27: ... 110mm Soil Pipe or Drain Soakaway Insulate against freezing 150mm Land Drain Filled with Gravel 750mm deep Condensate Drain from Boiler Air Pressure Switch pipe connection Vent Syphon Connect To Waste Drain Cap Bypass Condensate Drain Trap Note Internal minimum 19mm pipe External minimum 32mm pipe Optional Condensate Drain for Twin Pipe Flue Applications Fig 12 ...

Page 28: ...mensions mm Service Clearances mm Terminal Dimensions mm Flue Dimensions mm Flue Length min max mm MBD200 21 14 02 04 Pressure Loss Each boiler mbar litres min 400 300 200 100 0 0 5 10 15 20 25 C12 C32 C52 CAT II 2H3P U K I E B 2 x 20 0 23 0 kW 68 250 78 400 Btu h 2 x 22 2 25 5 kW 75 750 87 000 Btu h 2 x 19 1 22 0 kW 65 200 74 800Btu h 2 x 20 6 23 5 kW 70 000 80 000Btu h 10 4 14 0 mb 28 4 35 8 mb ...

Page 29: ...M5278 14 02 04 Station Lane Industrial Estate Witney Oxon Tel 01993 778855 Fax 01993 703407 ...

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