Normal operation
38
6
to the unit.
2.
Press the
button on the chronothermostat: radia-
tor symbol will turn off.
3.
Using the
and
keys it is possible to choose the
ventilation level (level 1 minimum ventilation, level
2 average ventilation, level 3 maximum ventilation).
Setting level 0 will not provide ventilation (the fan
switches off).
4.
During summer operation (ventilation) the burner is
switched off and only the fan works by moving the
room air.
During summer operation, the following ventilation
modes can also be selected using the FUNCT
key
(Figure 6.10
p. 39):
▶
Fixed manual ventilation (MAN
): continuous ven-
tilation without time limits at the selected ventilation
level.
▶
Automatic fixed ventilation (AUTO
): the pro-
grammed time slots are used to start the ventilation at
the selected level (COMFR), or to stop the ventilation
(ECONM).
6.4.2
Operation without chronothermostat
▶
Winter operation (heating)
▶
Summer mode (ventilation only)
▶
Air renewal operation (ventilation priority)
By default, the gas unit heater leaves the factory
configured for the standard operating mode with
the chronothermostat.
To set a different operating mode (e.g. for air re-
newal) refer to Paragraph 6.3.10
For further information on the operation and use
of the gas unit heater in this mode, please contact
the Robur technical service.
6.4.2.1
Winter operation (heating) and summer mode
(ventilation only)
1.
Enter the selection menu by pressing the
key for 3
seconds and then, after entering the INFO menu, the
and
keys at the same time.
2.
Set the parameter PM06 "Chronothermostat pres-
ence" to the value 0 (without chronothermostat)
(Table 6.4
p. 35).
3.
Press
to return to the INFO menu.
4.
Press
to exit the INFO menu and return to the main
screen.
5.
Disconnect the remote control and remove the dia-
logue board located on the control board at position
X13 (Paragraph 1.3
p. 11).
6.
For operation during winter, simply close the X10 con-
tact marked with the
symbol on the SCH2 board.
This way the gas unit heater will not operate in modu-
lating mode but in on/off mode with fixed heat output
and ventilation (maximum values).
7.
For operation during summer (fan operation only)
close the contact X7, marked with the
symbol,
placed on the SCH2 board. This way the fan will run at
maximum speed.
8.
To remote the fault signals, refer to the Paragraph
6.4.2.2
Air renewal operation (ventilation priority)
Air renewal operation is only possible without the
chronothermostat.
This gas unit heater operating mode allows on/off oper-
ation with ventilation always on and burner ignition only
on heat demand (closing of X10 contact).
Ventilation and heat output are fixed (maximum values).
This function is particularly useful if a constant renewal of
room air is required.
To set this operating mode, follow the instructions below.
1.
Enter the selection menu by pressing the
key for 3
seconds and then, after entering the INFO menu, the
and
keys at the same time.
2.
Set parameter PM01 "Operating mode" to value 03
(ventilation priority) (Table 6.4
p. 35).
3.
Set the parameter PM06 "Chronothermostat pres-
ence" to the value 0 (without chronothermostat)
(Table 6.4
4.
Press
to return to the INFO menu.
5.
Press
to exit the INFO menu and return to the main
screen.
6.
Disconnect the remote control and remove the dia-
logue board located on the control board at position
X13 (Paragraph 1.3
The settings made up to now allow the use of the
gas unit heater in two modes: "ventilation only"
mode (for air renewal) or "ventilation with simulta-
neous heating" mode (for air renewal and heating
simultaneously). This setting, therefore, does not
allow the gas unit heater to be used in "heating
only" mode, granting ventilation priority.
7.
To activate the ventilation only mode (fans only opera-
tion, for air renewal) close only the contact X7, marked
with the
symbol, placed on the SCH2 board. Useful
mode, for example, for the summer season.
8.
To activate the ventilation mode with simultaneous
heating (fan and burner simultaneous operation, for
air renewal and simultaneous heating) close, in addi-
tion to the contact X7 marked with the
symbol, al-
so the contact X10 marked with the
symbol, both
placed on the SCH2 board. To disable the heating re-
quest (and turn off the burner only), the X10 contact
marked with the
symbol must be opened. Useful
mode, for example, for the winter season.
9.
To remote the fault signals, refer to the Paragraph
