Ariston microGENUS II 24 MFFI, microGENUS II 28 MFFI, microGENUS II 31 MFFI User Manual
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End User
Manual
microGENUS II 24 MFFI
microGENUS II 28 MFFI
microGENUS II 31 MFFI
Country of destination: GB/IE
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.
The guarantee on this appliance is valid for 24 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
1. GENERAL INFORMATION page 2
Control Panel page 3
2. OPERA TING INSTRUCTIONS page 3
3. USEFUL INFORMATION AND TROUBLESHOOTING page 5
4. MAINTENANCE page 6
5. CHANGE OF GAS TYPE page 6
6. MECHANICAL TIME CLOCK page 6
7. Digital Programmer page 7
IMPORTANT!
Please read this manual carefully.
For additional information, please consult the “Installation 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 our authorised engineer.
MTS (GB) Limited support the
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, remember to shut the mains gas tap or
the gas cylinder valve.
initiative. Your installer will give you, and show
Before any intervention within the boiler it is first necessary to isolate the electrical
supply by turning the external switch to “OFF”.
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CONTROL PANEL
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LEGEND:
A - On/Off Switch
B - Domestic Hot Water Temperature Adjustment
C - Central Heating Temperature Adjustment
D - Reset Button
E - Comfort Mode Selector
F - Hot Water (Summer Mode LED - Green)
G - Ignition/Overheat Lockout LED (Red)
H - Central Heating (Winter Mode) LED (Green)
I - Digital Display (Fault Code/Water Temperature)
J - Time Clock
K-Central Heating System Pressure Gauge
2. OPERATING INSTRUCTIONS
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CAUTION
In the United Kingdom installation, start-up, adjustments and maintenance m ust 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
I.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). To refill the system, open the two black handles
connected to the silver flexible hose, once the pressure gauge “K” reads 1.5 bar close
the valves again.
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 cleaned 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.
PRACTICAL TIPS
- If the water is very hard, it is recommended that a water softener be added to the
system so as to reduce the formation of limescale in the boiler exchangers. This will
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