Ariston MicroCombi 23 MFFI Installation Instructions Manual
Type c boilers
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Also See for MicroCombi 23 MFFI:
- Installation and servicing instructions (65 pages) ,
- Servicing instructions (28 pages) ,
- User manual (20 pages)
Related Manuals for Ariston MicroCombi 23 MFFI
Summary of Contents for Ariston MicroCombi 23 MFFI
- Page 1 Installation Instructions Type C Boilers G.C.N: 47-116-16 LEAVE THESE INSTRUCTIONS WITH THE END-USER Country of destination: GB...
- Page 2 TABLE OF CONTENTS GENERAL INFORMATION 1.1 G ENERAL NSTRUCTIONS 1.2 O VERALL INSTALLATION 2.1 R EFERENCE TANDARDS 2.2 S ITING THE PPLIANCE 2.3 O VERALL IMENSIONS 2.4 C LEARANCES 2.5 M OUNTING THE PPLIANCE 2.6 E LECTRICAL ONNECTION 2.7 G ONNECTION 2.8 W ATER...
- Page 3 This manual is an integral and essential part of the product. It should be kept GENERAL with the appliance so that it can be consulted by the user and our authorised INFORMATION personnel. Please carefully read the instructions and notices about the unit contained in this manual, as they provide important infor mation regarding the safe installation, use and maintenance of...
- Page 4 5 - If called for by point. 3, dismantling and cleaning of the combustion chamber. 6 - If called for by point. 4, dismantling and cleaning of the burner jets. 7 - Visual check of the primary heat exchanger: check for overheating in the blade assembly; clean the exhaust fan if needed.
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Page 5: R Eference S Tandards
The technical information and instructions provided herein below are INSTALLATION intended for the installer so that the unit may be installed correctly and safely. The installation and initial start up of the boiler must be by a CORGI EFERENCE TANDARDS Registered Installer in compliance with the installation standards currently in effect, as well as with any and all local health and safety standards i.e.. -
Page 6: C Learances
VERALL IMENSIONS EGEND A = Central Heating Flow (3/4”) B = Domestic Hot Water Outlet (1/2”) C = Gas Inlet (3/4”) D = Domestic Cold Water Inlet (1/2”) E = Central Heating Return (3/4”) LEARANCES In order to allow for access to the interior of the boiler for maintenance pur poses, the boiler must be installed in compliance with the minimum clearances indicated in F . - Page 7 Note: The diagrams for the electrical system are indicated in section 2.11. Warning, this appliance must be earthed. External wiring to the appliance must be carried out by a competent person and be in accordance with the current I.E.E. Regulations and applicable local regulations.
- Page 8 Copper tubing to BS EN 1057:1996 is recommended for water pipes. Jointing should be either with capillary soldered or compression fittings. Where possible pipes should have a gradient to ensure air is carried naturally to air release points and water flows naturally to drain taps. The appliance has a built-in automatic air release valve, however it should be ensured as far as possible that the appliance heat exchanger is not a natural collecting point for air.
- Page 9 YSTEM ONNECTIONS The provision for satisfactory flue termination must be made in accordance with BS 5440-1. The appliance must be installed so that the flue terminal is exposed to outside air. The terminal must not discharge into another room or space such as an outhouse or lean-to.
- Page 10 In addition, it is also possible to use a split (twin pipe) system by fitting a special adaptor to the flue connector and using the aperture for the air vent intake located on the top part of the combustion chamber. To utilise the air intake it is necessary to: 1.
- Page 11 23 MFFI ABLE Exhaust Restrictor NO Restrictor Maximum Risk of Condensation Forming Type ø 43 mm Extension Piping insulated Piping not insulated Exhaust/Air ø 43 ø 43 restrictor restrictor C12 (xx) Coaxial L min = 0.5 m L min = 2 m L = 4 m NONE NONE...
- Page 12 2.10 R To connect a room thermostat, it is necessary to: HERMOSTAT ONNECTION 1. - Open the control panel as indicated in section 3.3. 2.- Remove the link “A” from the terminal block on the reverse of the control panel. 3.
- Page 13 . 2.12 SE016A . 2.13 SF013A...
- Page 14 2.12 ATER IRCUIT IAGRAM . 2.14 SI016A EGEND “Twin-pass” Heat Exchanger Domestic Hot Water Temperature Probe Burner Detection Electrode Ignition Electrodes Gas Valve Pump pressure switch Safety Valve 10. D.H.W. inlet filter 11. D.H.W. Flow Switch 12. Automatic By-pass 13. Pressure Gauge 14.
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Page 15: Ga Connection
COMMISSIONING MTS (GB) Limited support the initiative. Within the information pack NITIAL REPARATION you will find a copy of the logbook. It is important that this is completed in the presence of your customer, they are shown how to use it, and it is signed by them. - Page 16 ONTROL ANEL EGEND A - On/Off button B - Central heating temperature adjustment C - Domestic hot water temperature adjustment D - Heating system pressure gauge E - Time clock F - Central heating selector G - Central heating L.E.D. (green) H - Fume sensor L.E.D.
- Page 17 HE CHECKS TO BE RUN BEFORE INITIAL START UP ARE AS FOLLOWS 3.4. I NITIAL TART 1. Make sure that: - the screw on the automatic air valve has been loosened when the system is full; - If the water pressure in the system is below 1.5 bar, bring it up to the appropriate level;...
- Page 18 readings can be The flue connector has two apertures, OMBUSTION NALYSIS taken for the temperature of the combustion by-products and of the combustion air, as well as of the concentrations of O and CO , etc To access these intakes it is necessary to unscrew the front screw and remove the metal plate with sealing gasket.
- Page 19 - the gas is turned on. 6 - E XHAUST ISCHARGE NOMALY HUTDOWN The boiler is fitted with safety devices, which in the event of defective discharge of exhaust fumes, automatically interrupts the gas supply, thereby shutting off the boiler. The shutdown of the boiler is temporary and is indicated by the illumination of the yellow L.E.D.
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Page 20: Gas Adjustments
GAS ADJUSTMENTS Liquid Butane Gas Liquid Propane Gas CATEGORY II2H3+ Methane Gas Lower Wobbe Index (15°C;1013mbar) MJ/m 45.67 80.58 80.58 Nominal Delivery Pressure mbar Minimum Delivery Pressure mbar 23 MFFI Main Burner: n. 12 jets (ø) 1.30 0.77 0.77 Consumption (15°C; 1013mbar) 2.78 ---- ----... -
Page 21: W Ater C Onnections
MAINTENANCE It is recommended that the following inspections be carried out on the boiler at least once a year: 1 - Check the seals for the water connections; replace any faulty seals. 2 - Check the gas seals; replace any faulty gas seals. 3 - Visual check of the entire unit. -
Page 22: Control Panel
MISCELLANEOUS IRING IAGRAM FOR EATING ONES BROWN BOILER ELECTRICAL SUPPLY CABLE BLUE GREY ORANGE Remove internal time clock plug from the the P.C.B. then connect GREEN/YELLOW TYPICAL room stat terminal block on the JUNCTION BOX V4043H reverse of the boiler control panel VALVE (see section 2.10) to 9 + 10 on •... - Page 23 IRING IAGRAM FOR ONNECTION TO AN RISTON NVENTED YLINDER BOILER ELECTRICAL SUPPLY CABLE Remove internal time clock plug T6360B from the the P.C.B. then connect ROOM TYPICAL room stat terminal block on the THERMOSTAT JUNCTION BOX reverse of the boiler control panel BROWN (see section 2.10) to 9 + 10 on •...
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Page 24: Technical Information
TECHNICAL INFORMATION 23 MFFI CE Certification 63AU4547 Heat Input max/min kW 25.6/11.0 Heat Output max/min kW 23.7/9.6 Efficiency of Nominal Heat Input 92.5 Efficiency at 30% of Nominal Heat Input 90.5 Heat Loss to the Casing ( T=50°C) Flue Heat Loss with Burner Operating Flue Heat Loss with Burner Off Maximum Discharge of Fumes (G20) Kg/h...