Ariston A/23 MFFI Installation Instructions Manual
Type c boiler
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Also See for A/23 MFFI:
- Installation instructions manual (28 pages) ,
- User manual (16 pages) ,
- Servicing instructions (32 pages)
Related Manuals for Ariston A/23 MFFI
Summary of Contents for Ariston A/23 MFFI
- Page 1 A/23 MFFI - A/27 MFFI G.C.N. 47-116-18 / 47-116-19 Installation Instructions Type C Boilers LEAVE THESE INSTRUCTIONS WITH THE END USER Country of destination: GB Supplied By www.heating spares.co Tel. 0161 620 6677...
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Page 2: Table Of Contents
3.9 Draining the System GAS ADJUSTMENTS Gas Adjustment Table 4.1 Changing the Type of Gas MAINTENANCE MISCELLANEOUS 6.1 Wiring Diagram for Two Heating Zones 6.2 Wiring Diagram for Connection to Ariston Unvented Cylinderl TECHNICAL INFORMATION Supplied By www.heating spares.co Tel. 0161 620 6677... -
Page 3: General Instructions
For operating instructions please consult the separate User’s Manual. Users Manual A/23 MFFI A/27 MFFI General Instructions Read the instructions and recommendations in these Installation Instructions carefully to ensure proper installation, use and maintenance of the appliance. -
Page 4: Overall View
12 - Check the efficiency of the hot water supply (flow and temperature). 13 - Check general operation of the appliance. 14 - Check the exhaust system for the combustion products. Overall View A/23 MFFI - A/27 MFFI Legend: Flue Connector Combustion Chamber Hood... -
Page 5: Installation
INSTALLATION The technical information and instructions provided herein below are intended for the installer so that the unit may be installed correctly and safely. Reference Standards The installation and initial start up of the boiler must be by a CORGI Approved 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: Overall Dimensions
In order to allow for access to the interior of the boiler for maintenance purposes, the boiler must be installed in compliance with the minimum clearances indicated in the dia- gram below. A/23 MFFI - A/27 MFFI 40 50 60 70 80 Fig. 2.2... -
Page 7: Mounting The Appliance
Mounting the Appliance Fasten the boiler in place using the template and anchors supplied with the unit. It is highly recommended that a spirit level be used to position the boiler so that it is perfectly level. For additional information, please consult the instructions contained in the con- nection kit and the flue kit. -
Page 8: Water Connections
Water Connections A/23 MFFI - A/27 MFFI Fig. 2.4 Legend A = Central Heating Flow B = Domestic Hot Water Outlet C = Gas Inlet D = Domestic Cold Water Inlet E = Central Heating Return I = Safety Valve... -
Page 9: Flue Connection
public access. Air Release Points: These must be fitted at all high points where air naturally collects and must be sited to facilitate complete filling of the system. The appliance has an integral sealed expansion vessel to accommodate the increase of water value when the system is heated. It can accept up to 7 l (1.5 gal) of expansion water. - Page 10 TERMINAL POSITION A - Directly below an open window or other opening B - Below gutters, solid pipes or drain pipes C - Below eaves D - Below balconies or car-port roof E - From vertical drain pipes and soil pipes F - From internal or external corners G - Above ground or below balcony level H - From a surface facing a terminal...
- Page 11 This procedure must be done as follows: 1 - Remove the air vent intake you want to use, in the area indicated in Fig. 2.8, by breaking the perforated ring. 2 - Use a tool to grasp the lid and remove it completely. 3 - Clean any burrs or sharp edges with a knife or an appropriate tool.
- Page 12 Maximum Extension Diameter of Pipes Use of a Restrictor Exhaust Type Risk of Condensation Forming Exhaust/Air (mm) on the Discharge Side C12 (xx) ø 60 /100 L* < 0.5 m Coaxial System C32 (xx) ø 60 /100 L* < 0.5 m C42 (xx) ø...
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Page 13: Room Thermostat Connection
2.10 Room Thermostat In order to perform this procedure, remove boiler cover as indicated in section Connection 3.2. Then proceed as follows: 1 Remove the screws “A” located on the bottom part of the boiler; 2 Widen the sides so that the control panel can be rotated. 3 Open the cover “B”... - Page 14 2.11 Electrical Diagram Legend: AT= High Voltage P.C.B. BT = Low Voltage P.C.B. Flame Failure L.E.D. Insufficient Water Pressure L.E.D. Water Temperature Indicator L.E.D.s Overheat Thermostat Warning L.E.D. System Reset Button Selector Knob for Operating Mode Domestic Hot Water Temp. Adjustment Central Heating Temp.
- Page 15 A/23 MFFI - A/27 MFFI Supplied By www.heating spares.co Tel. 0161 620 6677...
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Page 16: Water Circuit Diagrams
2.12 Water Circuit Diagram A/23 MFFI - A/27 MFFI Legend Air Pressure Switch Main Heat Exchanger Main Burner Ignition Electrodes - Detection Electrode Gas Valve Overheat Thermostat Main Circuit Temperature Probe Diverter Valve 10. Main Circuit Flow Switch including Safety Pressure Switch for Primary Circuit 11. -
Page 17: Commissioning
COMMISSIONING Initial Preparation MTS (GB) Limited support the initiative. Within the information pack you will find a copy of the logbook. It is important that this is complet- ed in the presence of your customer, they are shown how to us it, and it is signed by them. -
Page 18: Removing The Front Panel
1. Remove the screw “F” located on the top edge of the panel. 2. Lift and unhook the panel. 3.3 Control Panel A/23 MFFI - A/27 MFFI 40 50 60 70 80 A - Ignition Lockout Reset Button/Safety (Overheat)Thermostat Reset B - Ignition Lockout L.E.D. -
Page 19: Operational Adjustments
- Loosen the cap on the head of the pump to eliminate any air pockets; - Repeat the procedure for bleeding the radiators of air; - Open the taps for a brief period; - Check the system pressure and, if it has dropped, open the filling-loop again to bring the pressure back up to 1 bar. -
Page 20: Fume Discharge Monitoring
Fume Discharge The discharge/ventilation of the exhaust fumes can be monitored to check for Monitoring losses in general pressure in the system. This is done to eliminate the cause of lighting failure with the main burner not indicated by a shutdown status. With a differential manometer connected to the test socket on the combustion chamber, the DP value for the air pres- sure switch can be taken. -
Page 21: Gas Adjustments
Liquid Propane Gas MJ/m 3 h Lower Wobbe Index (15°C;1013mbar) 45.67 80.58 70.69 Nominal Delivery Pressure mbar Minimum Delivery Pressure mbar A/23 MFFI Main Burner: n. 13 jets (ø) 1.,25 0.72 0.72 Consumption (15°C; 1013mbar) mc/h 2.72 ---- ---- Consumption (15°C; 1013mbar) -
Page 22: Miscellaneous
9 - Check of the heating safety systems: - safety device for maximum temperature; - safety device for maximum pressure. 10 - Check of the gas safety systems: - safety device for lack of gas or flame (detection electrode); - safety device for gas cock. 11 - Check of the electrical connection (make sure it complies with the instructions in the manual). -
Page 23: Wiring Diagram For Connection To Ariston
Wiring Diagram for Connection to Ariston Unvented Cylinder BROWN BOILER ELECTRICAL SUPPLY CABLE BLUE GREY ORANGE Remove internal time clock plug from the the P.C.B. then connect BOILER ELECTRICAL SUPPLY CABLE GREEN/YELLOW TYPICAL room stat terminal block on the JUNCTION BOX... -
Page 24: Technical Information
7 TECHNICAL INFORMATION A/23 MFFI A/27 MFFI CE Certification Heat Input max/min kW 25.6/11.0 29.8/12.0 Heat Output max/min kW 23.1/9.2 27.3/10.1 91.6 Efficiency of Nominal Heat Input 90.2 Efficiency at 30% of Nominal Heat Input 87.8 88.3 Heat Loss to the Casing (∆T=50°C)