Ariston E-Combi 24 User manual

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
Gas red condensing wall hung
combination boilers
G.C.N : 47-116 - 62 (24 kW)
G.C.N : 47-116 - 63 (30 kW)
G.C.N : 47-116 - 64 (38 kW)
E-COMBI 24
E-COMBI 30
E-COMBI 38
Country of destination GB, IE
User’ manual

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user’manual
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 installation and rst ignition of the boiler
must be performed by qualied personnel in
compliance with current national regulations
regarding installation, and in conformity with
any requirements established by local authorities
and public health organisations.
After the boiler has been installed, the installer
must ensure that the end user receives the
declaration of conformity and the operating
manual, and should provide all necessary
information as to how the boiler and the safety
devices should be handled.
This appliance is designed to produce hot water for
domestic use.
It should be connected to a heating system and a
distribution network for domestic hot water, both of
which must be compatible with its performance and
power levels.
The use of the appliance for purposes other than
those specied is strictly forbidden.The manufacturer
cannot be held responsible for any damage caused
by improper, incorrect and unreasonable use of
the appliance or by the failure to comply with the
instructions given in this manual.
Installation, maintenance and all other interventions
must be carried out in full conformity with the
governing legal regulations and the instructions
provided by the manufacturer. Incorrect installation
can harm persons, animals and possessions;
the manufacturing company shall not be held
responsible for any damage caused as a result.
In the event of any maintenance or other structural
work in the immediate vicinity of the ducts or ue
gas exhaust devices and their accessories, switch
the appliance o by switching the external bipolar
switch to the “OFF” position and shutting o the gas
valve.
When the work has been completed, ask a qualied
technician to check the eciency of the ducting and
the devices.
If the boiler should be out of use for a prolonged
period, it is recommended that the electrical power
supply be disconnected and that the external gas
cock be closed. If low temperatures are expected,
the boiler and system pipe work should be drained
in order to prevent frost damage.
Turn the boiler o and turn the external switch “OFF”
to clean the exterior parts of the appliance.
Do not allow children or inexperienced persons to
use the appliance without supervision.
CE labelling
The CE mark guarantees that the appliance conforms
to the following directives:
-90/396/CEE
relating to gas appliances
- 2004/108/CEE
relating to electromagnetic compatibility
- 92/42/CEE
relating to energy eciency
- 2006/95/CEE
relating to electrical safety

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user’manual
GUARANTEE
The appliance is guaranteed for 24 months from the date of purchase.
Aristons only obligation under the guarantee will be to repair or replace the faulty appliacnce at Aristons
discretion. This will be carried out where the fault arises from within defects in the appliance, caused either
by material or workmanship of the manufacturer.
This guarantee does not protect malfunction or damage arising from incorrect installation, commissioning
or maintenance procedures as laid out in the installation and servicing manual, inefficient flue system,
poor or incorrect electricicty, wrong gas supply or pressure, tampering by inexperienced persons and any
other cause not directly due to manufacture.
MTS (GB) Limited cannot accept responsibility for any cost arising from repair or maintenance carried out
by any third party.
Service under the guarantee does not affect the expiry date of the guarantee. The guarantee on parts and
appliances which are exchanged ends when the guarantee on the original appliance expires.
This guarantee does not affect your statutory rights.
You must have your boiler serviced at the end of the first year to validate your guarantee for the second
year.
Safety regulations
Key to symbols:
Failure to comply with this warning implies the
risk of personal injury, in some circumstances
even fatal
Failure to comply with this warning implies the
risk of damage, in some circumstances even
serious, to property, plants or animals.
Do not perform operations which involve
opening the appliance.
Electrocution from live components.
Personal injury caused by burns due to ove-
rheated components, or wounds caused by
sharp edges or protrusions.
Do not perform operations which involve
removing the appliance from its installation
space .
Electrocution from live components.
Flooding caused by water leaking from discon-
nected piping.
Explosions, res or intoxication caused by gas
leaking from disconnected piping.
Do not damage the power supply cable.
Electrocution from live uninsulated wires.
Do not leave anything on top of the ap-
pliance.
Personal injury caused by an object falling o
the appliance as a result of vibrations.
Damage to the appliance or items underneath
it caused by the object falling o as a result of
vibrations.
Do not climb onto the appliance.
Personal injury caused by the appliance fal-
ling.
Damage to the appliance or any objects un-
derneath it caused by the appliance falling
away from its installation space.
Do not climb onto chairs, stools, ladders or
unstable supports to clean the appliance.
Personal injury caused by falling from a height
or cuts (step ladders shutting accidentally).
Do not attempt to clean the appliance
without rst switching it o and turning the
external switch to the OFF position.
Electrocution from live components.
Do not use insecticides, solvents or aggres-
sive detergents to clean the appliance.
Damage to plastic and painted parts.
Do not use the appliance for any use other
than normal domestic use.
Damage to the appliance caused by operation
overload.
Damage caused to objects treated inappro-
priately.
Do not allow children or inexperienced indi-
viduals to operate the appliance.
Damage to the appliance caused by improper
use.If you detect a smell of burning or smo-
ke coming from the appliance, disconnect
it from the electricity supply, turn o the
main gas valve, open all windows and call
for assistance.
Personal injury caused by burns, smoke inhala-
tion, intoxication.
If there is a strong smell of gas, turn o the
main gas valve, open all windows and call
for assistance.
Explosions, res or intoxication.

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user’manual
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Control panel
Legend :
1. Green indicator CH temperarure and errors indicator
2. ON/OFF button
3. Green indicator ON/OFF
4. Pressure gauge
5. Winter / Summer switch - Heating temperature regulation knob
6. Domestic Hot Water adjustment knob
7. Time clock
8. Green indicator : ame ON / Red indicator : locking light
9. Yellow indicator : fumes exhaust malfunction
10. Reset button
Initial operating procedures
If the boiler is installed inside the apartment, make
sure that all provisions relating to the air inlet
and room ventilation (in compliance with current
legislation) are respected.
Check the water pressure on the pressure gauge
regularly and make sure that the gure is between
0.6 and1.5 bar when the system is cold. If the
pressure is just under the minimum value, re-
establish the correct pressure by lling loop.
If the pressure drops very frequently, there may be a
water leak at some point in the system. If this is the
case a plumber should be contacted
Ignition procedure
Press the ON/OFF button on the control panel to
switch on the boiler.
The green led 3will illuminate indicating that the
boiler is ready to operate.
The electronic control unit will ignite the burner,
without any manual intervention but in response
to the request for Domestic Hot Water or heating. If,
after approximately 10 seconds, the burner has not
ignited, the boilersafety devices will shut o the gas
and the red Led 8illuminates. To reset the ignition
system, the Reset button must be pressed and
released.
Should the boiler fail toignite a second time, check
that the external gas cock is open. If the problem
persists, contact an Authorised Service Centre.
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user’manual
Winter or summer operating modes
In the“winter” operating mode, the boiler will produ-
ce both Central Heating and Domestic Hot Water. In
the “summer” operating mode, the boiler will produ-
ce only Domestic Hot Water. Using the knob on the
control panel, the user can select “winter” or “sum-
mer” operating mode. Keeping the knob 5at the
position selects the “summer” operating mode.“Win-
ter” operating mode may be selected by positioning
the knob 5between the min. and max. settings.
Adjusting the heating
It is possible to set the temperature of the heating
water by adjusting the knob 5. By positioning the
indicator somewhere between min. and max., a
temperature may be obtained which varies from
about 40°C to about 82°C.
The water temperature in the primary circuit may be
checked by means of the green leds 1.
Domestic hot water temperature adjustement
It is possible to set the temperature of the domes-
tic hot water by adjusting the knob 6a temperature
may be obtained which varies from about 36°C to
about 60°C.
Switching o the heating
To switch o the heating mode turn the button 5
in the position . The boiler switches in sanitary
mode only.
Stand by
To switch o the boiler press the ON/OFF 2. The res-
pective green led 3will go o
Switch o the boiler completely by switching the
external electrical switch to the OFF position;
Close the gas tap.
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user’manual
Boiler protection devices
The boiler is protected from malfunctioning by
means of internal checks performed by the electronic
microprocessor P.C.B., which stops the boiler from
operating if necessary.
In the event of the boiler being shut o in this
manner, the leds code show the type of shut-o and
the reason behind it.
There are two types of shut-o:
Safety shut-o
This type of error is “volatile”, which means that the
boiler starts up again automatically as soon as the
problem which caused the shut-o is removed; the
yellow led 9ash and the C.H. Temperature leds 1
indicate the error code. (see table)
In fact, soon as the cause of the shut-o disappears,
the boiler starts up again and continues to operate
normally.
If the boiler still indicates a safety shut-o , switch
it o. Make sure the external electric switch is
in the OFF position, shut o the gas valve and
contact a quali ed technician.
Shutdown due to insucient water circulation
If the green leds 1ash and the boiler is o , one
possible cause for this stateis an insucient pressure
of water in the system - green leds 40-50 blink. Check
the water pressure on the pressure gauge 4and make
sure that is between 0.6 and 1.5 bar when the system
is cold. If the pressure is just under the minimum rell
the system by open the valve under the boiler.
If the pressure drops very frequently, there may be a
water leak at some point in the system. If this is the
case a plumber should be contacted.
Operation shutdown
This type of error is “non-volatile”, which means that
it is not removed automatically (the red led 8will
illuminate and the C.H.Temperature led 1will indicate
the error code). In this case the boiler does not restart
automatically, but it may be reset by pressing the
button. If the problem manifests itself again
after several attempts to reset the appliance, contact
a qualied technician.
Important
If this shutdown occurs frequently, contact an
authorised service centre for assistance. For
safety reasons, the boiler will allow a maximum
of 5 reset operations to take place in 15 minutes
(individual presses of the button). If the shutdown
is occasional or an isolated event, this is not a
problem.
Temporary shutdown due to defective discharge
of exhaust fumes.
The boiler is tted with safety devices, which in the
event of a defective discharge of exhaust fumes,
automatically interrupts the gas supply, there by
shutting o the boiler.
The shut-o of the boiler is temporary and is
indicated by the illuminationof the yellow led 9for a
period of about 12 minutes.
Once this time period has passed and the discharge
state of exhaust fumes has returned to normal, the
boiler automatically turns back on.
IMPORTANT! If this situation occurs
frequently, contact an Authorised Service
Centre. So that they may check that the
exhaust fumes are being expelled correctly
and that the area is ventilated properly.
Anti-frost Device.
The anti-frost function acts on the central heating
ow temperature probe, independently from other
regulations, when the electrical supply is turned on.
If the primary circuit temperature is between
3°C and 8°C the pump will run (with the diver-
ter valve switching between central heating and
hot water every 1 minute) until the temperature
reaches > 9°C.
If the ow temperature remains between 3°C and
8°C the pump will continue to run for a maximum of
20 minutes unless a temperature above > 9°C is de-
tected in the central heating ow, after this the the
burner will re (heating position) until a temperature
of > 30°C is detected.
If the central heating ow temperature is < 3°C, the
burner will re (heating position) at minimum power
until the temperature reaches > 30°C, the burner will
go out.
If lockout is caused by overheat the burner will not
re but the pump will continue to run (heating po-
sition).
The anti-frost device activates only when (with the
boiler operating correctly):
- the system pressure is correct;
- the boiler is electrically powered;
- there is a supply of gas.

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user’manual
Change of gas type
Our boilers are designed to function either with Natural Gas (methane) or L.P.G. gas. If you need
to change from one gas to the other, one of our Authorised Service Centres must be contacted to
convert the appliance.
Maintenance
Schedule an annual maintenance check-up for the boiler with a competent person.
Correct maintenance always results in savings in the cost of running the system.
Failure to arrange an annual service for the appliance will invalidate the second year of the manu-
facturers guarantee.
Green Leds
Temperature indicator Reset Note
Description ❍= flashing light
 ●= lit
40 50 60 70 80 90 yellow red
●●XOverheat
● ● ●XInsucient circulation
Insucient water (request lling)
C.H. Flow temp. probe circuit open / short circuit
C.H. Return temp. probe circuit open / short circuit
External sensor circuit open / short circuit
Floor Thermostat contact open
● ● ●XHeating delevery probe problem
Insucient circulation
EEPROM error
Comunication error
Too many (> 5) resets in 15 minutes
●●XMain P.C.B. error
Room sensor circuit open / short circuit
●XNo ame detected
Flame detected with gas valve closed
● ● ● ●XFlame lift
1st Ignition Failed
2nd Ignition Failed
Flame cut-o
● ● ●XThermofuse open
● ● ●XFan speed error
Table summarising error codes

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420010127500 - 02/2008
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