Ferroli DOMINA 102 DGT Installation, Servicing And User Instructions Manual
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Ferroli DOMINA 102 DGT Installation, Servicing And User Instructions Manual

Ferroli DOMINA 102 DGT Installation, Servicing And User Instructions Manual

Copper wall-mounted combination, gas fired boiler for central heating and domestic hot water production, fan assisted, room sealed compartment, electronic flame ignition and control
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DOMINA 102 DGT
Copper Wall-Mounted Combination,
Gas Fired Boiler for Central Heating
and Domestic Hot Water Production,
Fan Assisted, Room Sealed Compartment,
Electronic Flame Ignition and Control
INSTALLATION, SERVICING AND
USER INSTRUCTIONS
G.C. NO: 47-267-24

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Summary of Contents for Ferroli DOMINA 102 DGT

  • Page 1 DOMINA 102 DGT Copper Wall-Mounted Combination, Gas Fired Boiler for Central Heating and Domestic Hot Water Production, Fan Assisted, Room Sealed Compartment, Electronic Flame Ignition and Control INSTALLATION, SERVICING AND USER INSTRUCTIONS G.C. NO: 47-267-24...

  • Page 2: Table Of Contents

    You can check the installer's CORGI registration by calling CORGI on 01256 372300". Ferroli is a member of the Benchmark initiative and fully supports the aims of the programme. Benchmark has been introduced to improve the standards of installation and commissioning of central heating systems in the UK and to encourage the regular servicing of all central heating systems to ensure safety and efficiency.

  • Page 3: Description

    1.01 Introduction The Domina 102 DGT is defined as a “room sealed” combination boiler, all air required for combustion is taken from outside the room in which it is installed. It is a new high performance gas fired heat generator for central heating and domestic hot water production.

  • Page 4: Technical And Dimensional Characteristics

    DOMINA 102 DGT 2. TECHNICAL AND DIMENSIONAL CHARACTERISTICS 2.01 Technical information Domina 102 DGT boilers are central heating and domestic hot water heat generators and are produced as standard to function with natural gas or liquid petrolium gas converted. Bottom view Top view Ø80...

  • Page 5: Technical Data

    DOMINA 102 DGT Technical Data Domestic ho Domestic hot Heat input water heat Boiler water Heat output water circuit input contents MODEL contents Gross Litres Litres Domina 102 DGT 30.0 12.7 33.1 14.5 30.0 Max. working Max. Connections Expansion vessel...
  • Page 6 DOMINA 102 DGT 2.02 Boiler main components 2.03 Boiler water flow diagram FLUE FERROLI GRUNDFOS 85 44 Fig. 3 C.H. D.H.W. D.H.W. C.H. Fig. 2 Domestic hot water flow temperature sensor Room sealed compartment Air pressure switch Gas inlet Gas valve...
  • Page 7 DOMINA 102 DGT 2.04 Central heating adjustment (not normally required) To adjust boiler heat input (thus also regulating heat output to the central heating water) simply adjust the main burner via the electronic control board (fig. 4, 5 and see paragraph 5.04 page 24).
  • Page 8 DOMINA 102 DGT SAFETY VALVE SIZING OF ADDITIONAL EXPANSION VESSELS: SETTING (bar) VESSEL CHARGE Deduct from the value given in the table the 10 PRESSURE (bar) litre vessel supplied. INITIAL SYSTEM PRESSURE (bar) Note: TOTAL WATER EXPANSION VESSEL VOLUME (litres) CONTENT of SYSTEM Fill C.H.

  • Page 9: Installation Details

    Location of Boiler The installation of the Domina 102 DGT must be on a suitable non-combustible load bearing wall which will provide an adequate fixing for the boiler mounting safety bracket assembly. The location should be in an area where the water pipes will not be subjected to frost conditions.
  • Page 10 DOMINA 102 DGT Central Heating Detailed recommendations are given in BS6798, BS5449, BS6700 and CP342 Part 2. Pipework not forming part of the useful heating suface should be insulated to prevent any heat losses or possible freezing (i.e. in roof spaces or ventilated underfloor spaces).

  • Page 11: Terminal Position

    DOMINA 102 DGT 5 min. 5 min. 50 mm CLEARANCES: * 600mm minimum clearance for 600* min. servicing access Fig. 10 Terminal Position D, E Minimum dimensions of flue terminal positions Balanced flues room Open flues sealed Dimensions Terminal position...
  • Page 12 DOMINA 102 DGT 3.01 Drilling Template (Top Flue Application) Select suitable mounting position for boiler, using the template mark flue outlet and boiler mounting points. Drill two 10mm holes 90mm deep to accept the wall plugs, fit wall plugs. Fit two special wall plugs on the wall as described in the fig.
  • Page 13 - Calculate the total flow resistance of the air and flue pipes in metres (cap. 3.04.2) - utilise the table shown below to choose the more suitable restrictor for the flow resistance calculated RESTRICTOR FOR TWO PIPE SYSTEM ON DOMINA 102 DGT Total flow resistance restrictor of flue system size...
  • Page 14 DOMINA 102 DGT 3.03 Top Outlet Concentric Flue Connection 3.03.1 Vertical concentric connection A vertical connector can be supplied for vertical discharge with concentric pipes. The simple mounting and use of double lip gaskets at the Concentric joints makes this an extremely easy and safe option.
  • Page 15 DOMINA 102 DGT Notes on concentric horizontal installation To locate the centre of the hole for passing the pipes through the wall, refer to fig. 12b. Bear in mind that the two concentric pipes must slope downwards away from the boiler at a rate of about 3 mm/m to avoid rainwater entering the boiler.
  • Page 16 A varied selection of accessories for two pipe systems are available from Ferroli (ref. to page 17). Before installing your system please check via calculation table at 3.04.2 you are not exceeding the maximum permissible length for the appliance.
  • Page 17 DOMINA 102 DGT 3.04.2 (continued) REDUCTION REDUCTION Tab. 1 - Pipes and fittings reduction table FLUE FLUE Description Dscription Male-female flue/Air pipe Horizontal 1 m - Ø 80 flue terminal Ø 80 mm Female-female bend Air intake 45° Ø 80 m terminal Ø...
  • Page 18 DOMINA 102 DGT For further accessories please refer to: "Flue system manual for room sealed boiler" Example of calculation for wall inlet/outlet with 2 pipe system maximum total flue length: 50 metres Attention: 13 m 13 m Remove the flue diaphragm.
  • Page 19 DOMINA 102 DGT 3.05 Connecting the central heating and domestic hot water circuits Connect to the relevant connections as indicated in fig. 1. Connect the pressure relief valve discharge pipe (15mm) to the outside of the building, where possible over a drain. The discharge must be such that it will not be hazardous to occupants and passers-by or cause damage to external electric components or wiring.
  • Page 20 Open the electrical box on the base of the appliance and remove the “jumper cable” between terminals 3 and 4. Connect the room thermostat (72) as shown in figure 21b. 3.13 Ferroli Domina boiler programmer fixing (optional) - Remove outer case by removing two securing screws from the rear bottom corners and lift off.

  • Page 21: Commissioning And Testing

    DOMINA 102 DGT Wiring for integral clock and/or external controls DMF03 1 2 3 5 CLOCK External control i.e. Room Fig. 21b Stat or programmable room thermostat 4. COMMISSIONING AND TESTING 4.01 Checks to be carried out before starting up for the first time When starting the boiler up for the first time check: •...

  • Page 22: Adjustment And Gas Conversion

    DOMINA 102 DGT 4.04 Checks and controls after first start-up • Check there are no leaks in the gas and water circuits. • Check correct boiler start up by carrying out start up and shut down tests using the boiler stat.
  • Page 23 Customer Technical Service Helpline. 5.06 Gas conversion The following adjustment and conversion operations must be carried out by competent personnel. FERROLI Limited accepts no liability for damage to property or personal injury resulting from tampering with the boiler by unauthorised persons.

  • Page 24: Maintenance And Cleaning

    DOMINA 102 DGT 6. MAINTENANCE AND CLEANING The following operations must be carried out by Corgi registered engineers only. 6.01 Annual Servicing The following should be checked at least once a year: • Water pressure in the central heating system when cold should be about 1 bar. If this is not the case, bring it back to this value.
  • Page 25 DOMINA 102 DGT 20. Reconnect gas union and tighten. 21. Refit combustion chamber cover, secure with screws. 22. Examine seals on room sealed cover refit cover and secure with screws. 23. Turn on gas and electricity. 24. Fire boiler and check all gas joints for soundess.

  • Page 26: Replacement Of Parts

    DOMINA 102 DGT 7. REPLACEMENT OF PARTS 7.01 Initial procedure a) The boiler is cold, electricity supply is isolated, and the gas supply is turned off at the inlet of the boiler b) For replacement of parts where water connections are broken, it will be necessary to isolate and drain either or both the central heating or domestic hot water circuits of the boiler.
  • Page 27 DOMINA 102 DGT 7.05 Air pressure switch (fig. 27) • Isolate electricity • Remove outer case (two screws bottom rear corners) • Open room sealed department • Remove the two screw "A" fixing air pressure switch • Disconnect electrical leads "B"...
  • Page 28 DOMINA 102 DGT 7.09 Removal of burner (fig. 29) • Isolate gas and electricity supplies • Remove outer case (two screws bottom rear corners) • Remove room sealed cover • Disconnect ignition and flame rectification leads "A" • undo gas rail union "B"...
  • Page 29 DOMINA 102 DGT 7.13 Spark or flame detection electrode (fig. 31) • Isolate gas and electricity supply • Remove outer case (two screws bottom rear corners) • Open room sealed compartment and combustion chamber • Identify electrode from fig. 31 •...
  • Page 30 DOMINA 102 DGT 7.15 Pump (fig. 33) Replacement of pump head • Isolate electricity and flow and return pipes • Remove casing (two screws bottom rear corners). • Remove the two securing screws and lower control panel • Release pressure from boiler via pressure relief valve •...

  • Page 31: Fault Finding

    DOMINA 102 DGT 8. FAULT FINDING Before beginning any fault finding ensure that gas, water and electricity are available. 8.01 Operating Sequence With the power established the boiler is in its stand-by mode i. e. power on but no demand. The operational sequence for C.H.
  • Page 32 The following table lists a number of indications for resolving the faults signalled by the boiler. Interventions on the appliance must be effected only by Qualified Personnel, such as the personnel from the FERROLI Customer Technical Service Centre. For any operations on the appliance or which require the opening of the boiler, always request the assistance of the service centre.
  • Page 33 DOMINA 102 DGT 8.04 Temperature sensors (thermistors) Identical, but individual, negative temperature co-efficient (NTC) thermistors are fitted in the C.H. and D.H.W. outlets from the heat exchanger. As the water temperature increases the resistance in the thermistor decreases. This causes the PCB to reduce the voltage to the modureg, in turn reducing the burner pressure. The wiring for each thermistor is colour coded red for C.H.

  • Page 34: Electrical And Functional Scheme

    DOMINA 102 DGT 9. ELECTRICAL AND FUNCTIONAL SCHEME 9.01 General wiring diagram...

  • Page 35: User Instructions

    DOMINA 102 DGT 10. USER INSTRUCTIONS The operation of the appliance is mostly automatic. The heat rate for the heating function is regulated automatically by the control system according to the characteristics of the internal and external environment (with optional external probe installed), the characteristics of the building and its location.
  • Page 36 DOMINA 102 DGT 10.01 Operating indications on the display During operation, without pressint any of the buttons the display shows the operating status of the appliance: Standby Central heating outlet temperature Heating Central heating outlet temperature domestic hot water Domestic hot water temperature...
  • Page 37 DOMINA 102 DGT 10.02 Ignition Check than any shut-off valves in the heating system and domestic hot water circuit outside of the boiler are open. Open the gas cock upstream from boiler and press the main switch. The boiler will perform an self-test cycle lasting approximately one minute, at the end of which it is ready for operation.
  • Page 38 DOMINA 102 DGT To set the domestic hot water outlet temperature, access the operating menu, and using the button display parameter 2 – domestic hot water temperature. On pressing one of the buttons the display will start to flash and the domestic hot water outlet temperature setpoint will be displayed. Use the buttons to set the required value.
  • Page 39 DOMINA 102 DGT Time Clock A 24 hour time clock is fitted to the boiler to control the central heating, this will come into operation when the selector switch is turned to the position marked “heating timed and hot water”.
  • Page 40 Should you require help with any difficulties call our Technical Service Helpline on 0121 352 3200 Phone numbers: Installer Service Engineer BECAUSE OF OUR CONSTANT ENDEAVOUR FOR IMPROVEMENT DETAILS MAY VARY SLIGHTLY FROM THOSE QUOTED IN THESE INSTRUCTIONS. ALL SPECIFICATIONS SUBJECT TO CHANGE Please note - to avoid incurring unnecessary expense, in the event of a boiler shut down, check this in not caused by lack of electricity supply, gas supply or low water pressure before calling our Customer Service Helpline.

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47-267-24

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