12
|
Commissioning
CFB 840
6 720 802 836 (2012/05)
Heating circuit function
Positions
0
and
Manual
are special settings of the manual switch for the
heating circuit (
Æ
fig. 12, page [6]) reserved to contractors.
6
Commissioning
6.1
Commissioning the programming unit
The programming unit can be used with all control units of the series 7xx,
8xx and 9xx.
The programming unit can be used as follows:
•
directly in the control unit
•
wall-mounted as remote control unit or
•
in an adapter with separate power source.
The Programmer starts the initialisation process as soon as supply
voltage is connected. The display shows
MEC is initialised
.
The control unit address is then briefly displayed.
The display shows
Connection with ctrl. unit Address xx
established.
Depending on the individual application, the display shows various
information:
6.1.1 New Programmer installed in a control unit
If a brand new Programmer has been installed in the control unit and the
connections with the control unit have been established, data are
immediately downloaded from the control unit.
The display shows
Monitor data will from ctrl unit taken
.
6.1.2 Programmer is installed in another control unit
If the Programmer is programmed with a software version that is not able
to recognise this type of control unit, the display shows
Unknown
control unit
.
B
Remove the Programmer from the control unit and replace by a
Programmer with a suitable software version.
6.1.3 Programmer with set parameters installed in control unit
After the Programmer has been installed in the control unit, the two
adjacent displays will initially be re-displayed.
MEC is initialised
or
Connection with ctrl. unit Address xx established
.
Alternative control unit type
Initially, only data from the control unit can be downloaded, if the type of
control unit varies from that entered in the programming unit. The
display shows
Other Ctrl. unit type, Night button receive
.
B
Press the
Night mode
button.
The display shows
Data are from ctrl unit taken
.
Alternative control unit of the same type
If the Programmer is connected to a different control unit of the same
type, the display will show the below message for approx. 3 seconds.
NB other control unit
.
If the Programmer programming unit is separated from the control unit
and data is modified, the display shows
Aut button transmit, Night
button receive
, when the unit is reinstalled into a control unit of the
same type. The control unit scans whether the new data should be
accepted or whether the old data from the control unit should be used
again.
To adopt the new data:
B
Press
AUT
.
The display shows
Data are to ctrl unit
sent
.
To adopt the data from the control unit:
B
Press the
Night mode
button.
The display shows
Data are from ctrl unit taken
.
Identical control unit
If the programming unit is separated from the control unit and data is
modified externally, the display shows
Aut button transmit, Night
button receive
, when the unit is reinstalled into a control unit of the
same type. The control unit scans whether the new data should be
accepted or whether the old data from the control unit should be used
again.
To adopt the new data:
B
Press
AUT
.
The display shows
Data are to ctrl unit
sent
.
To adopt the data from the control unit:
B
Press the
Night mode
button.
The display shows
Data are from ctrl unit taken
.
In normal operation the manual switch should be in the
AUT
position.
Current functions are indicated by LEDs.
Position
Function
The heating circuit pump is switched on. The
mixing valve is switched volt-free and can be
manually operated.
The central heating or the DHW circuit
operates in automatic mode.
The heating circuit pump is switched off. The
mixing valve is switched volt-free. The control
functions remain active.
Table 10 Heating circuit functions FM442/CMM 920
If the Programmer is fitted in the control unit or wall
mounting plate, it automatically detects the control unit
to which it is connected (automatic detection). You do
not have to select the control unit.
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