Ferroli DOMINA N 80 47-267-23 Installation, Service And User Instructions Manual
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Ferroli DOMINA N 80 47-267-23 Installation, Service And User Instructions Manual

Ferroli DOMINA N 80 47-267-23 Installation, Service 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 N 80
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, SERVICE AND USER
INSTRUCTIONS
G.C. NO: 47-267-23

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Summary of Contents for Ferroli DOMINA N 80 47-267-23

  • Page 1 DOMINA N 80 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, SERVICE AND USER INSTRUCTIONS G.C. NO: 47-267-23...

  • Page 2: Table Of Contents

    You can check to the CORGI registered 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

    DOMINA N 80 1. DESCRIPTION 1.01 Introduction The Domina N 80 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 N 80 2. TECHNICAL AND DIMENSIONAL CHARACTERISTICS 2.01 Technical information Domina N 80 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 appliances. 100 25 Distance between connections Fig.

  • Page 5: During Domestic Hot Water Production, Gas Pressures To The Burner Must Correspond To The Maximum

    DOMINA N 80 Technical Data Domestic hot Boiler water Domestic hot water heat Heat output Heat input contents water contents input MODEL Litres Litres Domina N 80 23,8 25,8 11,5 23,8 Max. working Max. pressure Connections Expansion vessel working central pressure hot heating MODEL...
  • Page 6 DOMINA N 80 2.02 Boiler main components 2.03 Boiler water flow diagram FLUE 85 44 Fig. 3 °C °C C.H. D.H.W. D.H.W. C.H. Fig. 2 Room sealed compartment Air pressure switch Gas inlet Gas valve Domestic hot water outlet Safety overheat thermostat Domestic hot water inlet Central heating flow limit thermostat Central heating flow outlet...
  • Page 7 DOMINA N 80 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 and 5 and see paragraph 5.04 page 29). The diagrams indicate the variation in heat output to the water as burner working pressure is varied.

  • Page 8: Fig. 8

    DOMINA N 80 2.06 Pump characteristics The pump head available for circulating the water is given in fig. 7. N.B. - The pump is factory set at position 3. The pump is a Grundfos type 15-50 UPS series. Grundfos Pump per formance graph Note - Minimum flow through boiler heat exchanger at any time should not fall below 6 litres per minute.

  • Page 9: Installation Details

    DOMINA N 80 3. INSTALLATION DETAILS Gas Safety (Installation & Use) Regulations: 1996 In the interest of safety, it is the law that all gas appliances are installed by a competent person in accordance with the above Regulations, Building Regulations/Building Standards Scotland, Codes of Practice, current I.E.E. Regulations and the byelaws of the Local Water Undertaking.

  • Page 10: Key

    DOMINA N 80 Central Heating Detailed recommendations are given in BS6798, BS5449, BS6700 and CP342 Part 2. Pipework not forming part of the useful heating surface 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 N 80 5 min. 5 min. 50 mm CLEARANCES: * 600mm minimum clearance for servicing access Top clearance only applies to 100Ø concentric flue system 600* min. Fig. 11 Terminal Position D, E Minimum dimensions of flue terminal positions Balanced flues room Open flues sealed...
  • Page 12 DOMINA N 80 3.01 Boiler Mounting Plate Fig. 13...
  • Page 13 DOMINA N 80 3.02 Drilling Template (Standard Rear Flue Application) Select suitable mounting position 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 14: Domestic Hot Water Outlet

    DOMINA N 80 3.03 Drilling Template (Top Flue Application) Select suitable mounting position 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 15 DOMINA N 80 3.04 Back flue outlet (Diagram 1-9) 1. Core drill 127mm hole (5"). 2. Push through the outer flue. 3. Gently pull back until wall seal is flush with the wall. Fig. 16a Fig. 16b Fig. 16c 4. Place wall plate on outer flue ensuring it is level.
  • Page 16 DOMINA N 80 8. Install the inner metal flue into the outlet, up to 9. Make sure the inner flue is fully engaged in the wallplate flange mark. the flue terminal, secure boiler with two nuts and washers, sevure bottom of boiler using two 9.
  • Page 17 DOMINA N 80 Remove fan mounting plate by undoing the three fixing screws c. Rotate the fan through 90° so that the fan nozzle points upward. Secure the fan to the plate in the new position using screws in position d. For rear For upper outlet...
  • Page 18 DOMINA N 80 3.06 Restrictor For boiler operation, the restrictor supplied with the unit must be mounted following the instructions below. Determine the correct size of flue restrictor required. Before inserting the flue gas duct in the boiler, check that the restrictor fitted is correct and that it is correctly positioned (see fig.
  • Page 19 DOMINA N 80 3.07 Top Outlet Concentric Flue Connection 3.07.1 Vertical concentric connection A vertical connector can be supplied for vertical discharge with concentric pipes. The simple mounting and use of double lip gaskets Concentric at the joints makes this an extremely easy and safe Vertical option.
  • Page 20 DOMINA N 80 Notes on concentric horizontal installation To locate the centre of the hole for passing the pipes through the wall, refer to fig. 15. 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 Between boiler.
  • Page 21 2 in remaining air intake. A varied number of accessories for two pipe systems are available from Ferroli (ref. to page 22). Before installing your system please check via calculation table at 3.08.2 you are not exceeding the maximum permissible length for the appliance.
  • Page 22 DOMINA N 80 3.08.2 (continued) Reduction Reduction Tab. 1 - Pipes and Flue Flue fittings reduction table Description Description Ø Ø Ø...
  • Page 23 DOMINA N 80 For further accessories please refer to: Attention: Resistance of flue restrictor (if req.) is included (see table on page 18) "Flue system manual for room sealed boiler" Remove the flue restrictor. Example of calculation for wall inlet/outlet The flue and air pipes must have an inclination with 2 pipe system downward equal to 3% from boiler to outside.
  • Page 24 DOMINA N 80 3.09 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 25 DOMINA N 80 Note: If the power supply cable has to be replaced, use “0.75mm (24/0.20) heat resisting cable only to BS6500 with a maximum external diameter of 8 mm. Note - When connecting a room thermostat or external timer, do not link the power supply of these devices to the switching contacts.
  • Page 26 DOMINA N 80 JP03 3.17 Ferroli Domina boiler programmer fixing (optional) - Remove outer case by removing two securing screws from the rear bottom corners and lift off. - Remove screw securing facia panel and swing facia panel down. - Remove rear cover from facia.

  • Page 27: Commissioning And Testing

    DOMINA N 80 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: • that the gate valves between the boiler and central heating systems are open; •...

  • Page 28: Adjustment And Gas Conversion

    DOMINA N 80 • Check that the gas valve modulates correctly both during the central heating phase and the domestic hot water production phase. • Determine the combustion efficiency and the composition of the flue gases (refer to 6.04) • If any of the above are not correct refer to Technical Data (page 5). Adjustment (refer to 5) and Fault finding (page 37).
  • Page 29 Customer Technical Service Helpline. 5.09 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 30: Maintenance And Cleaning

    DOMINA N 80 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 31 DOMINA N 80 19. Reconnect ignition and flame rectification leads. 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.

  • Page 32: Replacement Of Parts

    DOMINA N 80 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 only.
  • Page 33 DOMINA N 80 7.05 Gas valve (fig. 36) • Isolate gas and electricity supplies • Remove outer case (two screws bottom rear corners) • Remove the two securing screws and lower control panel • Disconnect electrical connections from valve ("A") •...
  • Page 34 DOMINA N 80 7.08 Removal of burner (fig. 39) • 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 35 DOMINA N 80 7.12 Spark or flame detect electrode (fig. 41) • Isolate gas and electricity supply • Remove outer case (two screws bottom rear corners) • Open room sealed compartment and combustion chamber • Identify electrode from fig. 41 •...
  • Page 36 DOMINA N 80 7.14 Pump (fig. 43) 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 37: Fault Finding

    DOMINA N 80 8. FAULT FINDING Before beginning any fault finding ensure that gas, water and electricity are available. WARNING: DO NOT link any terminals on block X10 or X11 as this will damage the PCB beyond repair. 8.01 Operating Sequence With the power established the boiler is in its stand-by mode i.
  • Page 38 DOMINA N 80 In order, the five lights indicate: 1 Boiler On Indicate 2 Boiler Shut down warning 3 Domestic Hot Water circuit ON 4 Central Heating standby (Flashing Light) Central Heating circuit ON (Permanent Light) 5 Insufficient pressure in Central Heating System (Flashing Light) Electric power supply ON (Permanent Light) Note: Always check for sufficient gas supply (20mbar inlet working pressure for NG and 37mbar for LPG).

  • Page 39: Fan

    DOMINA N 80 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.
  • Page 40 DOMINA N 80 Fault finding CHART 1 8.10 General test and fault finding Check electrical supply - CH water pressure and frost protection Chart 1 Check electrical supply - C.H. water pressure and frost protection Chek the following carefully before starting •...
  • Page 41 CHART 2 DOMINA N 80 CHART 2 Check Domestic Hot Water operation Check Domestic Hot Water operation Chart 2 Open DHW taps Check Domestic Hot Water operation Open DHW taps DHW flow rate at least 2,5 litre/min? Check cold water DHW flow rate at inlet pressure least 2,5 litre/min?
  • Page 42 DOMINA N 80 CHART 4 Check fan/flue gas system Chart 4 Check fan/flue gas system Does fan run? Is air pressure switch activated? Is relay RY100 switch ON? Go to chart 5 Differential air pressure across the air pressure Go to charts 2-3 switch is greater than 180 Pascal? Check and if...
  • Page 43 CHART 5 DOMINA N 80 Check ignition system Chart 6 Check ignition system Is LED1 light on? Is LED2 on Does sparking start without at burner? the boiler sparking Does burner light? Go to chart 6 Re-check air pressure switch Check and if necessary Is LED2 on replace safety thermostat...

  • Page 44: Electrical And Functional Scheme

    DOMINA N 80 9. ELECTRICAL AND FUNCTIONAL SCHEME 9.01 Main components layout on electronic boards Potentiometer adjustment P1 = Central heating flow temperature adjustment P2 = Domestic hot water temperature adjustment P3 = Central heating flow output adjustment P4 = Ignition gas pressure adjustment P5 = Factory set;...
  • Page 45 DOMINA N 80 9.02 General wiring diagram...

  • Page 46: User Instructions

    DOMINA N 80 10. USER INSTRUCTIONS °C °C Fig. 46 KEY DESCRIPTION Switch OFF/ON/RESET Burner on indicator Central heating flow temperature regulation Boiler shut down warning D.H.W. temperature Domestic hot water circuit on regulation Central heating stand-by (Flashing light) Water pressure gauge Central heating circuit on (Permanent light) Insufficient pressure in central heating system (Flashing light) Time clock (option)
  • Page 47 DOMINA N 80 Boiler lock out In the event of the red lockout light ( ) coming on, the on/off/reset switch (A) should be turned clockwise against the spring tension to the reset position and released (this will put the boiler into three minute delay if in the heating mode).
  • Page 48 DOMINA N 80 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”. Slide switch: set clock - auto - set programme AUTO AUTO...
  • Page 52 Should you require help with any difficulties call our Technical Service Helpline on 08707 282 885 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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