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COMMISSIONING
Converting the appliance from LPG gas to Natural Gas
These appliances are designed to operate with different gas
types.
The appliance must only be converted for use with a different
gas type by a Gas Safe Registered installer.
To convert the appliance to Natural Gas use the instructions into
the convertion KIT.
AUTO function
This is a function which enables the boiler to automatically
adapt its operation routine (the temperature of the heating
elements) in line with the outdoor conditions, in order to achieve
and maintain the requested room temperature conditions.
Depending on the peripheral units connected and the number
of zones controlled, the boiler adjusts its fl ow temperature
automatically.
The various
corresponding
parameters should
therefore be set (see
adjustments menu).
To activate the function,
press the A
UTO button.
Example 1:
Single zone system (high-temperature) with on/off room
Thermostat:
In this case the following parameters must be set:
4 21 - Activation of temperature adjustment using sensors
- Select 1 = Basic temperature adjustment
2 44 - Boost Time (optional)
The wait time for the fl ow temperature increase in steps of
4°C may be set. The value varies according to the type of
system and installation.
If the Boost Time value = 00 the function is not activated.
Example 2:
Single zone system (high-temperature) with on/off room
Thermostat + outdoor sensor:
In this case the following parameters must be set:
4 21 - Activation of temperature adjustment using sensors
- Select 3 = outdoor sensor only
4 22 - Temperature adjustment curve selection
- Select the relevant curve according to the type of
system, installation, heat insulation used in the building,
etc.
4 23 - Perform a parallel curve shift if necessary, increasing
or decreasing the set-point temperature (this may also
be modifi ed by the user, using the heating temperature
adjustment knob, which, with the Auto function activated,
is used to shift the curve in a parallel manner).
Example 3:
Single zone system (high-temperature) with Sensys controller +
outdoor sensor
In this case the following parameters must be set:
4 21 - Activation of temperature adjustment using sensors
- select 4 = outdoor sensor + room sensor
4 22 - Temperature adjustment curve selection
- Select the relevant curve according to the type of
system, installation, heat insulation used in the building,
etc
4 23 - Perform a parallel curve shift if necessary, increasing or
decreasing the set-point temperature. (This may also be
changed by the user by the buttons 8 which, with the
Auto function activated, is used to shift the curve in a
parallel manner.)
4 24 - Infl uence of room sensor
- used to adjust the infl uence the room temperature has
on the calculation of the set-point fl ow temperature (20 =
maximum, 0 = minimum).
Note: See page 40 for details on accessing menus.
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