TABLE OF CONTENTS
1) GENERAL INFORMATION page 5
2) OPERATING INSTRUCTIONS pag e 8
3) TIME CLOCK page 11
4) USEFUL INFORMATION
AND TROUBLESHOOTING page 13
IMPORT ANT
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.
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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
i.e. by the gas meter.
Your local MTS Servicing Centre is at your complete disposal for
all requirements.
MTS (GB) Limited
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
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.
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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 T emper ature max
Operating T emper ature 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 Domestic Use
Working pressure max
Working pressure min
Flow rate ∆T 25°C
Flow rate ∆T 35°C
Minimum flow rate
ELECTRICAL DATA
Electrical Supply/Frequency
Wattage Rating
Protection of Electrical System
CATEGORY
Nominal Pressure/Methane Gas (G20)
Nominal Pressure/Liquid Gas (G30-G31)
kW(Btu/h)
kW(Btu/h)
kW(Btu/h)
kW(Btu/h)
%
%
°C
°C
bar
bar
litres
°C
°C
bar
bar
l/min
l/min
l/min
V/Hz
W
IP
mbar
mbar
25.6 (87364)
11.0 (37539)
23.1 (78491)
9.2 (31396)
90.2
87.8
82
42
3
1
7
56
36
6
0.2
13.2
9.4
2.6
230/50
150
X 4 D
20
30-37
29.8 (101707)
12.0 (40956)
27.1 (92492)
10.1 (34471)
91.6
88.3
82
42
3
1
7
56
36
6
0.2
15.6
11.2
2.6
230/50
150
X 4 D
20
30-37
33.0 (112629)
12.0 (40956)
30.3 (103414)
10.2 (34813)
92.0
88.6
82
42
3
1
7
56
36
6
0.2
17.3
12.4
2.6
230/50
150
X 4 D
20
30-37
Genus 23
TECHNICAL INFORMATION
Genus 27
Genus 30
* Combination
versions only
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LEGEND
A) Ignition Lockout Reset Button/Safety (Overheat)Thermostat Reset
B) Ignition Lockout L.E.D.
C) Selector Knob for Summer/Winter/Flue Analysis Modes
D) Low System Water Level L.E.D.
E) Temperature Adjustment Knob for Domestic Hot Water
F) Heating System Thermometer
G) Safety (Overheat)Thermostat Intervention L.E.D.
H) Adjustment Knob for Heating Temperature
I) On/Off L.E.D.
L) On/Off Switch
N) Fume Sensor L.E.D.
O) Heating System Pressure Gauge
Genus 23 MI Genus 27 RFFI SYSTEM
Genus 23/27/30 MFFI