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FRANCAIS
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664Y0200.C
Gauge pressure in the heating system
Your system must be equipped with a heating safety valve
calibrated to 3 bar and fitted with a pressure gauge.
Ensure that the system is always under water pressure. When
the system is cold and the air inside it has been vented, the
gauge must indicate a pressure between 0.5 and 1.5 bar
depending on the height of the building.
To add water:
(fig. 11 page 10)
• Open the filling valve (5).
• Close the valve properly after filling.
• Vent the system in order to obtain an accurate reading of the
pressure inside the heating circuit.
Safety valves (heating circuit)
If water is found to be escaping from one of the safety valves,
stop the boiler and contact your installer for advice.
A monthly test is recommended:
Lift the lever on the drain cock for a few seconds to ensure that
the safety valve is working correctly.
If there is a problem after this short test, please
contact your installer for advice.
Safety group (hot water circuit)
A monthly test is recommended:
Lift the lever on the drain cock for a few seconds to ensure that
the safety group is working correctly.
If there is a problem after this short test, please
contact your installer for advice.
Water escaping from the safety valve or safety
group can be extremely hot and cause very
serious burns.
SETTING THE BURNER TO SAFETY MODE
If the burner is not working:
1. The burner indicator lamp lights up on the control panel.
2. Press the burner reset button on the control panel (Fig. 4).
Now switch off the boiler for a few seconds at the main
switch and then restart it.
3. Reset the manual reset high limit thermostat on the top of
the boiler (Fig. 5).
4. If the problem persists, please contact your installer for
advice.
fig. 4
fig. 5
use of the boiler
Your system should be serviced at least once a year
by a qualified engineer.
If the boiler is subject to heavy use, it may require
servicing more than once a year - consult your service
engineer for advice.
Starting the burner:
In normal operation, the burner starts automatically
whenever the boiler temperature falls below the set
temperature.
Before carrying out any work on the boiler, isolate it
from the electrical supply at the switch on the
external control box.
Also move the main switch on the control panel to
“OFF”.
The user must not attempt to gain access to the
components inside the control panel.
1. Control thermostat (SV) or potentiometer (MV)
If the boiler is being used to generate hot water only, the boiler
temperature can be set to between 60 and 90°C.
If the boiler is being used for hot water and heating, then the
boiler's control thermostat or its potentiometer should normally be
set to 80°C to guarantee optimum operating conditions.
2. Main switch
This switch is used to start and stop the boiler.
3. Summer/Winter switch
This switch is used to start and stop the heating pump
(if a pump
is fitted)
.
4. Thermometer
The thermometer shows the boiler temperature in the heating
circuit. This temperature should not exceed 90°C. If it does,
stop the boiler and check the settings on the thermostat (SV)
or potentiometer (MV). If the problem persists, contact your
installer for advice.
5. Resetting the burner
This switch can be used to restart the burner if it has shut
down.
6. Burner indicator lamp
This lamp tells the user whether the burner has shut down (lamp
on) or not (lamp off).
7. Controller (optional)
Refer to the instructions supplied with the controller if you have
this option.
uSER GuIDE
1
7
4
2
5
6
3
fig. 3 : Control panel
Summary of Contents for alfa Sprint M
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