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ATI SP 80, 120, 220, 300, 400 – INSTALLATION INSTRUCTIONS
Sept - 01
3 - USER INSTRUCTIONS
3.1 RECOMMENDATIONS FOR THE USER
•
The following instructions book is an integral and
essential part of the appliance, and it has to be kept
with care near the appliance, for any further
consultation.
•
The appliance, as it is turned on, has to be checked
from the nearest Authorised Assistance Centre.
•
Installation has to be made by professional qualified
people, which are responsible in the respect of the
safety regulations in force.
•
An incorrect installation, caused by not observing of
the manufacturer’s instructions can cause damages
to people, animals or things for which the
manufacturer can not be considered responsible.
•
The appliance has been manufactured for hot water
production: any other else use of it has to be
considered dangerous and not suitable.
•
The appliance has not to be installed in damp
rooms, it has to be protected from water splashes
or other liquids, to avoid anomalies to electric and
thermal devices.
•
Packaging parts (i.e. plastic bags, polystyrene,
wood, clips, nails, etc.) can be harmful to children
and should be carefully disposed of immediately.
•
Read carefully the instructions and the advise
contained in this booklet, concerning safety,
installation, use and maintenance.
•
If the appliance is sold or transferred to a new
owner, make sure that this booklet stays with the
appliance, so that the new owner and installer can
consult it.
•
Do not place anything upon the appliance.
•
To avoid damages caused by low temperatures, if
the appliance has to be left unused for a long
period in a non-heated room, it is recommended the
unit is emptied completely.
•
The manufacturer is not responsible for faults,
break-downs or for water leakage from the plant
caused by low temperature.
3.2 STARTING THE APPLIANCE
1. set the switch to the On position "I"
2. set the control thermostat indicator to the desired
temperature
3. check that the lock-out light is off. If not this means
that the control box is in a lock-out mode. In this
case re-set the control box by pushing the reset
button. The lock-out light will go out.
The ignition cycle starts. The pressure drop exerted by the
flue fan operation (in correct combustion circuit conditions)
closes the differential pressure switch contacts and the
control box starts the pre-purge cycle (pre-purge duration:
30 sec.). At the end of the pre-purge cycle the gas valve and
the electric spark operates to ignite the burner. These are
controlled simultaneously.
When the burner ignites the flame must be detected
by the appropriate detection electrode within the
safety time (10 sec.), otherwise the control box will go
to lock-out which is indicated by the red lock-out light.
This can occur easily in a new installation where air is
still present in the gas line.
In that case wait for at least a minute, press the reset
push-button to reset the control box and a new
ignition cycle will start. Repeat the operation until the
residual air has been bled and ignition is regular.
IMPORTANT: apart the above case, the turning on
of the red lock-out light generally indicates an
operating faults or defect. In that case we
recommend that you call the nearest Authorised
Assistance Centre.
After the burner is ignited, indicated by the green
light, the water heating phase begins. The burner will
operate until the water temperature set on the control
thermostat is reached.
To check the functioning of the thermostat, rotate the
knob to the lowest value and check that the burner
stops. Repeat the start up to check that the ignition of
the burner is normal.
3.3 SWITCHING OFF
To switch off the water heater for a short period :
•
rotate the control thermostat knob to the minimum
value and press the On/Off switch to the “0”
position.
To switch off the water heater for a lengthy period :
•
rotate the control thermostat knob to the minimum
value
•
press the On/Off switch to the “0” position.
•
switch off the electrical supply by the main
isolating switch
•
close the gas isolating valve
3.4 MAINTENANCE
To ensure the safety of the appliance and to extend
its working life an annual check/cleaning by an
Authorised Assistance Centre is recommended, with
consideration to the following:
•
magnesium anode replacement
•
internal inspection of the water tank, by mean the
proper inspection and cleaning flange, and
cleaning of possible calcium deposits on the
bottom
•
checking of the gas soundness.
