Ariston CLAS HE 24, CLAS HE 30, CLAS HE 38 User Manual
User’ manual
The code of practice for the installation,
commissioning & servicing of central heating systems
CLAS HE
Condensing wall hung system boiler
G.C.N : 47-116-51 (24 kW)
G.C.N : 47-116-52 (30 kW)
G.C.N : 47-116-53 (38 kW)
CLAS HE 24
CLAS HE 30
CLAS HE 38
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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 qualied 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 specied 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 qualied technician to
check the eciency 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
- 89/336/CEE
relating to electromagnetic compatibility
- 92/42/CEE
relating to energy eciency
- 73/23/CEE
relating to electrical safety
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 overheated 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 disconnected 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 appliance.
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 falling.
Damage to the appliance or any objects underneath 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 aggressive 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 inappropriately.
Do not allow children or inexperienced individuals to operate
the appliance.
Damage to the appliance caused by improper use.If you detect a
smell of burning or smoke 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 inhalation, 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.
Auto Function
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The AUTO function serves to optimise boiler performance, while maintaining an optimum radiator temperature and maximum
user comfort. It ensures the building stays at the ideal temperature, whilst saving energy.
The principle is that the water temperature at the boiler outlet is automatically adjusted, depending on the interior ambient
temperature.
Control Panel
user’ manual
Ignition procedure
Press the ON/OFF button on the control panel to switch on the boiler.
The display shows:
Legend :
1. Display
2. R
eset button
3.
Red indicator locking light
4.
Orange indicator COmfORt fonction
5.
Pressure gauge
6. Heating temperature regulation knob
7. button
8. m
9. e
10. button
_
enu/Ok button (Programming key)
sC button
+
11. Domestic Hot Water adjustment knob
12. Time clock
The rst gure indicates the operating mode:
0 - Stand -by
,
C - Central heating request
c - Heating post-circulation
d - Domestic hot water request
H -
Hot water post-circulation
F -
Circulation pump anti-freeze protection enabled
- burner anti-freeze protection enabled
The second and third gures indicate:
-
the ow temperature when no heating requests have been made
- the ow temperature in central heating mode
-
the temperature of the hot water in domestic hot water mode
- the ow temperature in anti-freeze mode.
13. ON/OFF button
14. Blue indicator burner ON
15.
Yellow indicator AutO fonction
16. A
utO button (To active Thermoregulation)
17. COmfORt 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 display 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 the display will
request a lling procedure.
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.
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