K4
Changes in models reserved.
Dimensions not binding!
Operation
User
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5
Boiler Attendance by the User
Description of the control panel
5.1
Description of the Control
The basic information shown on the screen is represented by the heating circuit temperature – in case of DHW heating it is the temperature
measured by the DHW sensor.
Setting of the desired DHW temperature of the system is achieved by pushbuttons
K6
and
K7
. Setting of the desired DHW temperature
of the system is achieved by pushbuttons
K1
and
K2
on the boiler control panel.
In case of using higher-level control, this option is blocked on the boiler and temperatures can be set only from the room device.
Switching between the SUMMER/WINTER operation and turning OFF is done by
K5
pushbutton.
The basic information will be shown after pressing
i
K3
pushbutton.
Defects are reset by
reset
K4
pushbutton.
After turning OFF, the boiler is still energized and the control unit ensures antifreeze protection and if selected then also regular short operation
of the pump to prevent stiffening.
5.2
Modes of Operation
The controller has a number of operation modes:
•
OFF mode, heat demands are ignored except for CH and
DHW frost protection calling
•
STAND-BY
•
CH mode
•
DHW mode
•
TEST or INSTALLER MODE, option for the installer to test
and set boiler parameters
•
ERROR/FAULT conditions like high temperature, lockout,
sensor fault, etc.
The priority of operating modes is fixed as follows:
1. Error/fault mode
2. Test or Installer mode
3. DHW mode
4. CH mode
5. Stand-by mode
6. OFF mode
In case of normal operation in DHW or CH mode and no error conditions it is always possible to enter the test mode as the higher priority mode
of operation. This implies that there are no error conditions present. If there was an error condition, test mode can be entered after normal
operating conditions are present again.
OFF mode
This is mode is selected by mean of the
K5
push button.
When selected, LCD is indicating:
K1 CH setpoint adjustment (+)
K2 CH setpoint adjustment (-)
K3 Info mode selection
K4 RESET mode
K5 OFF / DHW / CH+DHW modes enabling
K6 DHW setpoint adjustment (-)
K7 DHW setpoint adjustment (+)
DG1
7 segments digit
DG2
7 segments digit
DG3
7 segments digit
S1
DHW mode
S2
reset request
S3
dot
S4
CH mode
S5
centigrade degree
S6-S7-S8
burner power indication
S9
solar mode
S10 .. S17
water pressure level indication (x.x resolution)
S18
service request
6.1 Control Panel
6 Operation
The basic information shown on the screen is represented by the heating circuit temperature – in case
of DHW heating it is the temperature measured by the DHW sensor.
Setting of the desired DHW temperature of the system is achieved by pushbuttons
K6
and
K7
.
Setting of the desired DHW temperature of the system is achieved by pushbuttons
K1
and
K2
on the boiler control panel.
In case of using higher-level control, this option is blocked on the boiler and temperatures can be set
only from the room device.
Switching between the SUMMER/WINTER operation and turning OFF is done by
K5
pushbut-
ton.
The basic information will be shown after pressing
i
K3
pushbutton.
Defects are reset by
reset
K4
pushbutton.
After turning OFF, the boiler is still energized and the control unit ensures antifreeze protection and if
selected then also regular short operation of the pump to prevent stiffening.
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