3 Operation
Operation manual
8
R2CND0 R2TND012~024A4AA
Wall-mounted condensing boiler
3P469438-4D – 2017.07
#
Description (short)
Unit
A02
Actual domestic hot water temperature
°C
A03
Actual flue temperature
°C
A04
(a)
Actual outdoor temperature (if outdoor
sensor is connected, otherwise "--")
°C
A05
(a)
Actual solar temperature (if solar sensor is
connected, otherwise "--")
°C
A06
Actual water pressure
bar
A07
Actual domestic hot water flow rate
l/min
A08
(b)
Current set point of burner capacity
%
A09
(b)
Actual capacity of boiler in relation to
nominal capacity
%
A10
(c)
Actual phase of the burner
—
A11
Status of On-Off room thermostat,
indicate heat demand (HC1)
—
A12
Actual error code of boiler
—
A13
Actual fan speed (rpm/100)
rpm
A14
Current setpoint of boiler pump
%
(a)
Not applicable if the sensor is not connected.
(b)
Maximum value for central heating = 91%
Maximum value for domestic hot water = 100%
(c)
A10=0: Standby mode, burner is not active
A10=1: Start-up, preparation to ignition
A10=2: Ignition and flame stabilisation phase
A10=3: Release control (burner is on, operation phase)
A10=4: Post-purge phase
To use the info menu
1
Press the "Enter" button when the
icon is displayed on the
menu level 1 screen.
2
Select an index between 00 and 14 with the right dial. Press the
"Back" button to return to menu level 1 screen.
a
a
Index
3.5.3
User settings menu
User settings menu: Parameters (short)
The user settings menu ( ) comprises parameters that can be
changed and adjusted by users. You can read out and adjust the
parameters according to your preferences.
NOTICE
If you are not sure about the function of the parameter, do
not change it. Contact your service agent.
#
Description
Unit Default Range
U00
Summer-winter switch over
temperature
°C
20
10~30
U01
Heating slope
—
0
0~40
U02
Central heating ECO mode
—
0
0~1
U03
Domestic hot water comfort
mode
—
0
0~1
U04
Domestic hot water set value
°C
50
35~60
U05
Set value for the room
thermostat at day mode
°C
21
10~30
U06
Set value for the room
thermostat at reduced mode
°C
18
10~30
#
Description
Unit Default Range
U07
Set value for the flow
temperature at day mode
°C
50
35~80
U08
Set value for the flow
temperature at reduced mode
°C
35
35~80
U09
Domestic hot water comfort
mode user record dependency
—
1
1, 2 or
24
U10
Room temperature setpoint
used by ROTEX Opentherm
room thermostat during night
°C
18
10~30
User settings menu: Parameters (detailed)
#
Description
U00
When using outdoor sensor, above this parameter
value of outside temperature, the boiler senses the
season as summer and does not activate central
heating although there is demand. Summer-winter
switching has a hysteresis of ±1ºC.
i.e: When this parameter is adjusted to 20ºC, the boiler
switches to summer mode at 21ºC and switches back
to winter mode at 19ºC.
U01
This value is used when only outside sensor is
connected to the boiler (No Opentherm room
thermostat connection). The parameter heating slope is
important to adapt the weather compensation to the
individual heating system, the building and the thermal
insulation.
The heating slope can be adjusted from 0
to 40. The heating slope needs to be increased to
increase the boiler central heating set temperature.
Colder regions require a higher heating slope value.
Note:
To activate weather compensation, the heating
slope value must be higher than "5".
U02
Enabling / disabling central heating ECO mode.
1 = enabled, 0 = disabled
U03
Enabling / disabling domestic hot water comfort mode.
1 = enabled, 0 = disabled
U04
Domestic hot water set value (Same function that can
be done via the right dial when domestic hot water
mode is enabled).
U05
When On-Off room thermostat and outdoor sensor are
both connected, this parameter value is the virtual room
temperature setpoint when there is a heat demand.
U06
When On-Off room thermostat and outdoor sensor are
both connected, this parameter value is the virtual room
temperature setpoint when there is no heat demand.
Note:
For this parameter value to be active, reducing
mode has to be enabled by your service agent,
otherwise central heating mode will not be activated
when there is no heat demand.
U07
When On-Off room thermostat is connected and
outdoor sensor is not connected, this parameter value
is the central heating water temperature setpoint when
there is a heat demand.
U08
When On-Off Room thermostat is connected and
outdoor sensor is not connected, this parameter value
is the central heating water temperature setpoint when
there is not a heat demand.
Note:
For this parameter value to be active, reducing
mode has to be enabled by your service agent,
otherwise central heating mode will not be activated
when there is no het demand.
