End User Manual - The Initiative Group
Contents
1. knob A delivery temperature for the water may be chosen in a range from 36 C to about 54 C depending on the flow rate of the water and the position of the knob between 1 and 9 settings Note Should the Domestic Hot Water not be hot enough it may be necessary to slow the flow rate from the hot water outlet being used TURNING OFF THE CENTRAL HEATING To turn off the Central Heating press the F button the respective green L E D G will go off The boiler will stay in summer mode only providing Domestic Hot Water TURNING OFF THE BOILER To turn the boiler off press the button A the respective green L E D K will go off Close the gas cock located under the boiler by inserting a screw driver into the bottom slot See F amp G and turning turn clockwise until it stops slot horizontal It is also necessary to turn the electricity supply switch located outside the boiler to the OFF position 3 USEFUL INFORMATION AND TROUBLESHOOTING QO R UTOO1A 4 MAINTENANCE 5 CHANGE OF GAS TYPE BOILER SHUTDOWN SITUATIONS The boiler is equipped with safety devices that intervene in certain situations and shut it off Most of these situations are communicated by means of the L E D s and at times the user may be able to remedy them SHUTDOWN DUE TO IGNITION FAILURE In the event that the automatic ignition of the burner has failed the red L E D will illuminate In order to reset the ignition the2. boiler will constantly be on and will only shut off upon the request of the room thermostat if installed or the heating thermostat 2 Position O HEATING OFF in this position the clock circuit is always open switch off and the boiler will therefore never ignite for heating 3 Central Position PROGRAMMING ACTIVE in this position the programme set by the user is active Manufacturer Commercial subsidiary Merloni TermoSanitari SpA Italy MTS GB LIMITED MTS Building Hughenden Avenue High Wycombe Bucks HP 16 5FT Telephone 01494 755600 Fax 01494 459775 Internet www ariston co uk E mail info uk mtsgroup com Technical Service Hot Line 01494 539579 Cod 2399841567111 Edition 1 Revision 1 11 07 03
3. button J must be pressed and released Should the boiler fail to ignite a second time check that the external gas cock is open If the problem persists contact a local Service Agent IMPORTANT Always wait 2 minutes before resetting each time SHUTDOWN DUE TO OVERHEATING In the event that the safety limit is exceeded for the temperature of the water in the boilers exchanger the thermostat shuts off the boiler and the red L E D I illuminates To remedy this situation wait a few minutes to allow the exchanger to cool down then press and release the reset button J If this situation occurs frequently contact a local Service Agent SHUTDOWN DUE TO INSUFFICIENT WATER CIRCULATION If the boiler is off one possible cause for this state is an insufficient pressure of water in the system Check the system pressure on the pressure gauge D and if it is less than 0 5 bar re pressurise the system as instructed by your installer should you be unsure some basic instructions are provided hereafter Ensure that the filling loop hose is connected to the cold water inlet pipe and to either the Central Heating flow or return Open the handle s or tap s to allow water into the Central Heating system Once the needle on the pressure gauge reaches 1 Bar close the handle s or tap s and disconnect the filling loop hose Should it still be unclear how to proceed please consult your installer If the boiler does not start up
4. 7 Opn ii dif TECHNICAL DATA Ambient temperature 10 C to 55 C Shortest switching time 15 minutes Programmable Every 15 minutes UT011Ap Note the time clock is for Central Heating control only The time clock is provided with 96 switches called riders each of which covers a time interval of 15 minutes four per hour When a rider is switched from the inside off setting to the outside of the clock border on setting the circuit is closed switch on for a period of 15 minutes and then the boiler starts if the room thermostat if installed or the heating thermostat require heat heating function on EXAMPLE To set the heating of your home in the time interval from 7 00 am to 9 30 am and from 7 00 pm to 10 00 pm every day rotate the outer ring of the clock in a clockwise direction until the correct time of day 24h lines up with the arrow on the clock at approx 2 o clock position under no circumstances should the minute hand be moved manually make sure all the switches i e the riders are placed on the inside of the clock border pull outward the riders for 7 00 am and 9 30 am and then all riders between these two repeat this for 7 00 pm and 10 00 pm Other heating intervals may be set in the same way The clock is provided with a selector switch with three positions See figure 1 Position CONSTANT in this position the clock circuit is always closed switch on therefore the
5. again contact a local Service Agent If there are frequent drops in pressure within the system have a plumber check the heating system for possible water leaks TEMPORARY SHUTDOWN DUE TO DEFECTIVE DISCHARGE OF EXHAUST PRODUTS The boiler is fitted with safety devices which in the event of a defective discharge of exhaust products automatically interrupts the gas supply thereby shutting off the boiler The shut off of the boiler is temporary and is indicated by the illumination of the yellow L E D H for a period of about 15 minutes Once this time period has passed and the discharge state of exhaust system has returned to normal the boiler automatically turns back on IMPORTANT If this situation occurs frequently contact a local Service Agent so that they may check that the exhaust fumes are being expelled correctly that the flue is installed correctly and that the area is ventilated properly Schedule an annual maintenance check up for the boiler with a competent person Correct maintenance always results in savings in the cost of running the system Our boilers are designed to function either with Natural Gas methane or LPG gas If you need to changeover from one gas to the other one of our local Service Agents should be contacted 6 TIME CLOCK Ly yun Tp L753 4 PRN em N A s NS uy U TN Al K a1 YV IITTI N T RY LARAS SS 7 WSS hii Ad N Uy I P gt 5 8
6. ating selector G Central heating L E D green H Flue sensor L E D yellow I Overheat and or ignition failure lockout L E D red J Ignition failure lockout and or overheat reset button K ON OFF L E D green CAUTION In the United Kingdom installation start up adjustments and maintenance must be performed by a CORGI Registered Installer in accordance with the installation standards currently in effect as well as with any and all local health and safety standards i e CORGI In the Republic of Ireland the installation and initial start up of the appliance must be carried out by a Competent Person in accordance with the current edition of 1 S 813 Domestic Gas Installations the current Building Regulations reference should also be made to the current ETCI rules for electrical installation HELPFUL SUGGESTIONS To get the most out of your boiler we have provided you with some useful advice on proper use and maintenance Periodically check the system pressure using the pressure gauge D make sure that the pressure is at 1 5 bar when the system is off and cool If the pressure is below the minimum recommended value 1 bar consult your installer for checking and refilling the system an example of how a filling loop should be fitted is shown to the left E Note DO NOT UNDER ANY CIRCUMSTANCES USE THE APPLIANCE WITH THE PRESSURE GAUGE READING ZERO The outer panels of the unit s case must only be c
7. ember to shut the mains gas tap or the gas cylinder valve Consult the Installation and Servicing manual when turning off the boiler for long periods of time Before any intervention within the boiler it is first necessary to isolate the electrical supply by turning the external switch to OFF TECHNICAL INFORMATION GENERAL DATA 23 kW 27 kW Heating input max min 25 6 11 0 29 3 11 0 Heating output max min 23 7 9 6 27 9 27 Efficiency at Maximum Thermal Capacity see 92 5 92 installation instructions CENTRAL HEATING Operating Temperature max min Maximum Minimum Heating Pressure Built in expansion vessel Total capacity litres DOMESTIC HOT WATER Temperature of Water for Domestic Use max min Working pressure max min Flow rate AT 35 C Minimum flow rate ELECTRICAL DATA Electrical Supply Frequency 230 50 230 50 Power Consumption 135 155 Protection of Electrical System X4D X4D CATEGORY Nominal Pressure Methane Gas G20 Nominal Pressure Liquid Gas G30 G31 2 OPERATING INSTRUCTIONS UTOO9A COLD C H WATER RETURN GAS INLET D H W INLET Iil OUTLET i a C D T I ie 1 is Removable Filling Hose Isolating valve with non return valve FILLO1 CONTROL PANEL K J L H G F E D LEGEND 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 he
8. leaned with a damp cloth Do not use abrasive cleaners The control panel can be wiped with either a damp or dry cloth Spray polishes must not be used on the control panel surface or knobs Care must be taken to prevent any liquid from entering the appliance UTO02A Cock Open UTO002A PRACTICAL TIPS If the water is very hard it is recommended that a water softener or in line scale reducer be added to the system so as to reduce the formation of limescale in the boiler exchangers This will ensure that the efficiency of the unit remains the same over time reducing gas consumption and maintenance costs If the boiler should be out of use for a prolonged period it is recommended that the electrical power supply be disconnected and that the external gas cock F and G be closed If low temperatures are expected the boiler and system pipe work should be drained in order to prevent frost damage To improve comfort and take full advantage of the heat produced by the boiler it is recommended that an external room thermostat be installed It is good practice to clean and service the appliance and central heating system every year Call a local Service Agent IGNITION PROCEDURE Press button A The green L E D K will illuminate indicating that the boiler is ready to operate The centralised electronic control unit will ignite the burner upon demand for either C H or D H W If after approximately 10 second
9. mig CO ina D End User Manual microCombi 23 MFFI microCombi 27 MFFI Leave These Instructions With the End User GARISTON R benchmark The code of practice for the installation commissioning amp servicing of central heating systems Country of destination GB IE C Dear Customer Thank you for choosing an ARISTON boiler We guarantee that your boiler is a reliable and technically sound product This manual provides detailed instructions and recommendations for proper installation use and maintenance Remember to keep this manual in a safe place for future reference i e by the gas meter Your local MTS Servicing Centre is at your complete disposal for all requirements Mis GROUP The guarantee on this appliance is valid for 12 months from the first day of installation Repairs to the electric hydraulic or gas circuits may be carried out only by your local authorised MTS Servicing Centre Every attempt has been made to avoid errors of any kind in this manual the Management invites customers to inform of any inaccuracies which they may find This will help to improve our service TABLE OF CONTENTS 1 GENERAL INFORMATION page 3 Technical Information page 3 Control Panel page 4 2 OPERATING INSTRUCTIONS page 4 3 USEFUL INFORMATION AND TROUBLESHOOTING page 6 4 MAINTENANCE page 7 5 CHANGE OF GAS TYPE page 7 6 Time CLOCK page 7 IMPORTANT Please read this manual carefully For addi
10. s the burner has not ignited the boiler safety devices will shut off the gas and the red L E D I illuminates To reset the ignition system the reset J must be pressed and released Should the boiler fail to ignite a second time check that the external gas cock is open If the problem persists contact a local Service Agent IMPoRTANT Always wait 2 minutes before resetting each time WINTER AND SUMMER OPERATING MODES In the winter operating mode the boiler will produce both central heating and domestic hot water In the summer operating mode the boiler will produce only domestic hot water Press F button to select winter mode The green L E D G will illuminate ADJUSTING THE HEATING It is possible to set the temperature of the heating system by adjusting the knob B By positioning the indicator somewhere between 1 and 9 a temperature may be obtained which varies from approximately 42 C to about 82 C EXTERNAL ROOM THERMOSTAT CONTROL If an external room thermostat is installed it is recommended that the temperature of the heating system be set by means of the B knob leaving it at 7 8 position in order to obtain the best performance from the boiler and to allow the regulation of the external temperature to function efficiently SETTING THE HOT WATER FOR DOMESTIC USE Both in the winter and summer mode the temperature of the domestic hot water may be adjusted by using the C
11. tional information please consult the nstallation and Servicing Instructions Make sure to keep the manuals provided with the appliance so that they can be used by the end user installer or local service agent 1 GENERAL INFORMATION MTS GB Limited support the Genchmarg initiative Your installer will give you and show you how to use a Log Book which will give you important information about your boiler and heating system Please have this Log Book to hand whenever you contact a service engineer or us All CORGI Registered Installers carry a CORGI ID card and have a registration number Both should be recorded in your boiler Logbook You can check your installer is CORGI registered by calling CORGI direct on 01256 372300 This is a combined appliance for the production of Central Heating C H and Domestic Hot Water D H W This appliance must be used only for the purpose for which it is designed The manufacturer declines all liability for damage caused by improper or negligent use Do not allow children or inexperienced persons to use the appliance without supervision If you smell gas in the room do not turn light switches on or off use the telephone or any other object which might cause sparks Open doors and windows immediately to ventilate the room Shut the gas mains tap on the gas meter or the valve of the gas cylinder and call your Gas Supplier immediately If you are going away for a long period of time rem
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