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TABLE OF CONTENTS
1. GENERAL INFORMATION
2. OPERATING INSTRUCTIONS
3. USEFUL INFORMATION
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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.
Every attempt has been made to avoid
errors of any kind in this User's Manual, the
Management invites customers to inform of
any inaccuracies which they may find.This
will help to improve our service.
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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.
Your local MTS Servicing Centre is at your complete disposal for all
requirements.
GUARANTEE
The guarantee on this appliance is valid for 12 months from
the first day of installation.
Repairs to the electric, water or gas circuits may be carried
out only by your local authorised MTS Servicing Centre.
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GENERAL DATA
Thermal Capacity min/max kW 8 / 24 8 / 24
Usable Thermal Power min/max (30/40°C) kW 8.8 / 26.1 8.8 / 26.1
Usable Thermal Power min/max (60/80°C) kW 7.9 / 23.3 7.9 / 23.3
Usable Thermal Power min/max (30/50°C) kW - / 24.5 - / 24.5
Power for Hot Water Production min/max kW 7.9 / 23.3 7.9 / 23.3
Efficiency at Nominal Thermal Capacity (60/80°C) % 97.3 97.3
24 MFFI 24 RFFI SYSTEM
TECHNICAL INFORMATION
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CENTRAL HEATING
Temperature min/max (High Temperature range) °C 42 / 82 42 / 82
Temperature min/max (Low Temperature range) °C 30 / 75 30 / 75
Maximum Heating Pressure bar 3 3
Expansion Vessel Capacity l 7 7
DOMESTIC HOT WATER
Temperature min/max °C 36 / 56 36 / 56
Pressure of Water for Domestic Use min/max bar 0.2 / 8-10 0.2 / 8-10
Heating Temperature min/max (Low Temperature range) °C 30 / 75 30 / 75
Temperature of Water for Domestic Use min/max °C 36 / 56 36 / 56
Flow Rate ∆T=30°C l/min 11.1 N/A
Flow Rate ∆T=35°C l/min 9.6 N/A
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ELECTRICAL DATA
Electrical Supply V/Hz 230/50 230/50
Power Consumption W 130 130
Protection of Electrical System IP 4XD 4XD
CATEGORY
Nominal Pressure/Natural Gas (G20) (boiler at maximum) mbar 20 20
Nominal Pressure/LPG (G30-31) (boiler at maximum) mbar 30 30
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24 MFFI 24 RFFI SYSTEM
TECHNICAL INFORMATION (CONT’D)
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1. GENERAL INFORMATION
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 on light switches, 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.
Before any intervention within the boiler it is first necessary to cut off the
electrical power supply by turning the external switch to “OFF”.
This manual may be kept in the front panel of the boiler.
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CONTROL PANEL
A. Selector Knob for
Summer/Winter/Flue Test Modes
B. Domestic Hot Water Temperature
Adjustment Knob
C. Central Heating Temperature
Adjustment Knob
D. On/Off L.E.D.
E. On/Off Knob
F. "COMFORT"/Heating Only
Function Push-button
G. “COMFORT"/Heating Only
Function L.E.D.
H. Reset Button
I. Multi-function Display
J. Heating System Pressure Gauge
K. Time Clock
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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 “J” and make sure that the pressure is between 1.0 and
1.5 bar (the blue part on the gauge) when the system is off and
cool.If the pressure is below the minimum recommended value,
the pressure must be brought into the acceptable range.Consult
your installer for checking and refilling the system.
If the pressure level drops on a frequent basis, it is likely that there is a water leak
in the system. If this is the case, your installer must inspect the system.
2. OPERATING INSTRUCTIONS
CAUTION
Installation, start-up, adjustments and maintenance must be performed by
a competent person only in accordance with the current Gas Safety
(Installation & Use) Regulations 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.
If it is known or suspected that a fault exists on the appliance, it must not
be used until the fault has been corrected by a competent person.
J