User’s Manual
TABLE OF CONTENTS 1) GENERAL INFORMATION page 5 2) OPERATING INSTRUCTIONS page 8 3) TIME CLOCK page 11 4) USEFUL INFORMATION AND TROUBLESHOOTING page 13 IMPORTANT Please read this manual carefully. For additional information, please consult the “Installation and Servicing Instructions.” Please ensure manuals provided are kept with the appliance so that they can be used by the end-user, installer or our authorised engineer.
Dear Customer, Thank you for choosing an ARISTON boiler. We guarantee that your boiler is a reliable and technically sound product. This User’s 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.
TECHNICAL INFORMATION GENERAL DATA Heating input max Heating input min Heating output max Heating output min Efficiency at Maximum Thermal Capacity (see installation instructions) Efficiency at Reduced Thermal Capacity (see installation instructions) CENTRAL HEATING Operating Temperature max Operating Temperature min Maximum Heating Pressure Minimum Heating Pressure Built-in expansion vessel - Total capacity DOMESTIC HOT WATER* Maximum Temperature of Water for Domestic Use Minimum Temperature of Water for D
Genus 23 MI Genus 23/27/30 MFFI 6 Genus 27 RFFI SYSTEM LEGEND A) B) C) D) E) F) G) H) I) L) N) O) Ignition Lockout Reset Button/Safety (Overheat)Thermostat Reset Ignition Lockout L.E.D. Selector Knob for Summer/Winter/Flue Analysis Modes Low System Water Level L.E.D. Temperature Adjustment Knob for Domestic Hot Water Heating System Thermometer Safety (Overheat)Thermostat Intervention L.E.D. Adjustment Knob for Heating Temperature On/Off L.E.D. On/Off Switch Fume Sensor L.E.D.
Installation, start-up, adjustments and maintenance must be performed by a competent person only in accordance with the Gas Safety (Installation & Use) Regulations (1984) and the instructions provided. Improper installation may cause damage or injury to individuals, animals and personal property, for which the manufacturer will not be held liable. To ensure efficient and safe operation it is recommended that the boiler is serviced annually by a competent person.
START-UP PROCEDURE LIGHTING I L (FOR ALL MODELS ) Before starting the unit, check the following: · The water pressure on the pressure gauge “O”; · That the gas cock and the inlet for domestic water are open. These models are equipped with electronic ignition which utilises contact ionisation. To make the boiler operational, simply press the On/Off switch “L”. The green L.E.D. “I” will then turn on.
TURNING ON THE BOILER Installation without a room thermostat : - Turn on the power supply to the boiler by pressing the On/Off switch “L”; the green L.E.D. “I” will then turn on; - Turn the “C” selector knob to < I L >; - Regulate the temperature of the water in the boiler by turning the “H” knob. The temperature can vary between 42°C and about 82°C; C - Check the boiler temperature on the thermometer with the yellow L.E.D.s “F”.
ADJUSTING THE HEATING TEMPERATURE To economise on consumption while achieving the highest level of comfort, the temperature adjustment knob is designed with three different heating zones based on the temperature outside the home. Rotate the knob “H” as shown below. PRODUCTION OF HOT WATER FOR DOMESTIC USE E (FOR ALL MODELS) - Turn on the power to the boiler by pressing the On/Off switch “L”; - With these settings, the boiler is already ready for use, regardless of the position of the “C” selector knob.
SHUTDOWN PROCEDURE (FOR ALL MODELS) To turn off the main burner, simply press the On/Off switch “L”; the green L.E.D. “I” will also turn off. As a precautionary measure, it is recommended that the gas cock located on the bottom of the boiler be turned off as well.
The colon now blinks once a second. AM/PM TIME DISPLAY If you press the “+/-h” and “h” keys at the same time, the time display switches into the AM/PM mode. Notes: If you keep the “h” and “m” keys pressed down for more than 2 seconds, the display will enter fast forward scroll mode. ‹ ENTERING THE SWITCHING TIMES If your entry is incomplete, the segments not yet selected will blink in the display. You have 20 memory locations available. Each switching time takes up one memory location.
ADDITIONAL FUNCTIONS READING THE PROGRAMMED SWITCHING TIMES Pressing the “Prog” key displays the programmed switching times until the first free memory location appears in the display “-- : --”. Switching from summer time to winter and vice versa. Press the “+/-1h” key once. MANUAL OVERRIDE KEY With the “ ” key you can change the current switching settings at any time. The switching program already entered is not altered.
Notes on storing switching times: If you end your entry of the switching times by pressing the “Prog” key, the switching time you have entered will be stored and the next memory location displayed. Entry of further switching times is also carried out as described in “Entering the switching times”.
USEFUL INFORMATION AND TROUBLESHOOTING BOILER SHUTDOWN The boiler unit is equipped with safety devices which intervene in certain situations to shutdown the boiler. Some of these situations are signalled by the unit and can be corrected by the user. SHUTDOWN DUE TO OVERHEATING This anomaly is signalled by the red “G” L.E.D. The boiler shuts off because the safety thermostat detected that the boiler temperature has reached the temperature limit.
SHUTDOWN DUE TO INSUFFICIENT WATER CIRCULATION This anomaly is indicated by the red “D” L.E.D. One of the possible causes of this shutdown situation could be the lack of water in the boiler or water circulation failure in the primary heating circuit. Check the system pressure on the pressure gauge “O” and, if it is less than 0.5 bar, consult your installer for checking and refilling the system. Then reset the unit by turning the boiler off and then back on with the On/Off button “L”.
MONITORING DEVICE FOR FUME DISCHARGE (For Genus 23 MI) These units are equipped with a device that monitors the discharge of the fumes produced by combustion and automatically shuts off the supply of gas to the main burner for approximately 12 minutes if it detects that the fumes have been discharged into the room where the unit is installed. The shutdown of the unit is immediately signalled by the yellow "N" L.E.D. which remains on for the entire shutdown period.
NOTES 18 NOTES B003
Manufacturer: Merloni TermoSanitari SpA - Italy Commercial subsidiary: MTS (GB) LIMITED MTS Building Hughenden Avenue, High Wycombe Bucks HP13 5FT Telephone: (01494) 755600 Fax: (01494) 459775 Technical Service Hotline: (01494) 539579 Cod.
