Page 1
End User Manual SERIES ACO 27 MFFI G.C.N: 47-116-34 ACO 32 MFFI G.C.N: 47-116-35 ACO 27 RFFI G.C.N: 41-116-09 ACO 32 RFFI G.C.N: 41-116-10 LEAVE THESE INSTRUCTIONS WITH THE END USER Country of destination: GB/IE...
Dear Customer, TABLE OF CONTENTS Thank you for choosing an ARISTON boiler. 1. G page. 3 ENERAL NFORMATION We guarantee that your boiler is a reliable and 2. C page. 4 ONTROL ANEL technically sound product. 3. O page. 6...
MTS (GB) Limited support the initiative. In the Installation 1. GENERAL INFORMATION and Servicing Instructions (Sections 11 and 12) you will find the Commissioning Checklist and the Servicing Interval Record, your installer must complete this, and show you how to use it as it will give you important information about your boiler, and heating system.
27/32 MFFI 2. CONTROL PANEL Fig. 3.6 Description Button Description Green LED ON/OFF Button (illuminated = burner on) “COMFORT” Function Button Time clock (Mechanical Version Shown) Reset Button/ Selector knob for Summer/Winter Flue Test**/ scroll through Functions Menu Central Heating Temperature Adjustment Knob Menu Button Control Panel Cover Programming “+”...
Page 5
27/32 RFFI SYSTEM . 3.4 Description Button Description Green LED ON/OFF Button (illuminated = burner on) Time clock (Mechanical Shown - Optional) Reset Button/ Selector knob for Summer/Winter Flue Test**/ scroll through Functions Menu Central Heating Temperature Adjustment Knob Menu Button Control Panel Cover Programming “+”...
CAUTION!! OPERATING INSTRUCTIONS In the United Kingdom installation, start-up, adjustments and maintenance must be performed by a CORGI registered installer in accordance with the installation standards cur- rently in effect, as well as with any and all local health and safety standards i.e.
Page 7
Adjusting the heating It is possible to set the temperature of the Central Heating system by adjusting the knob “C”. By positioning the indicator some- where between 1 and 6, a temperature may be obtained which varies from approximately 38˚C to about 82˚C. The water temperature in the primary circuit is shown on the dis- play.
Page 8
Note: If the “COMFORT” function is on during the pump overrun period, it will be temporarily deactivated. The yellow L.E.D. “G” will remain on to indicate that the boiler will resume the “COM- FORT” mode once the pump overrun period is complete. Periodic operation of the appliance will occur regardless of demand on the boiler.
Shutdown Due to Ignition Failure USEFUL INFORMATION This anomaly is indicated by “A01” on the display. To reset the boiler, press and then release the reset button At this point, the electronic ignition system will attempt to light the burner again. Should the boiler fail to ignite a second time, check that the external gas cock is open.
TIME CLOCK : 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 ther- mostat (if installed) or the heating thermostat require heat (heat-...
Page 11
Changing the programmed switching times Press the “Prog” key repeatedly until the switching time you want to change is displayed. You can now enter the new data. See point “Entering the switching times”. Notes on storing switching times: If you end your entry of the switching times by pressing the “Prog” key, then the switching time you have entered will be stored and the next memory location displayed.
Need help?
Do you have a question about the ACO Series and is the answer not in the manual?
Questions and answers