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3.6
Further indications
Fault indication
If the controller detects a malfunction, the directional
pad flashes red and the symbols of the warning trian-
gle and the wrench are additionally displayed.
Smiley
If the controller operates faultlessly (normal opera-
tion), a smiley is displayed.
4
Status menu
During normal operation of the controller, the display
is in the status level. This one indicates the measure-
ment values shown in the table.
In addition to the display values, possible error mes-
sages are indicated in the status menu (see page 64).
Display
Description
BLPR1
Blocking protection R1
BLPR2
Blocking protection R2
BLPR3
Blocking protection R3
BLPR4
Blocking protection R4
DTFCT
Differential function active
THERM
Thermostat function active
TCOL
Temperature collector
TCOL1
Temperature collector 1
TST1B
Temperature tank 1 bottom
TSTT
Temperature tank top
S3
Temperature sensor 3
TST2B
Temperature tank 2 bottom
TST3B
Temperature tank 3 bottom
TST2T
Temperature tank 2 top
S4
Temperature sensor 4
TCOL2
Temperature collector 2
38
Display
Description
S5
Temperature sensor 5
DTS1
Temperature heat source ∆T function
DTS2
Temperature heat sink ∆T function
SENTH
Temperature thermostat function
TFHQM
Temperature flow
energy metering
TRHQM
Temperature return
energy metering
n1 %
Speed relay 1
n2 %
Speed relay 2
n3 %
Speed relay 3
h R1
Operating hours relay 1
h R2
Operating hours relay 2
h R3
Operating hours relay 3
h R4
Operating hours relay 4
L/h
Flow rate
kWh
Heat quantity in kWh
MWh
Heat quantity in MWh
TDIS
Temperature thermal disinfection
CDIS
Countdown of monitoring period
(thermal disinfection)
DDIS
Countdown of heating period
(thermal disinfection)
TIME
Time
DATE
Date
5
Initial commissioning
When the hydronic system is filled and ready for op-
eration, connect the controller to the power supply.
The controller runs an initialization phase in which
all symbols are indicated in the display.The directional
pad flashes red.
When the controller is commissioned for the first
time or when it is reset, it will run a commissioning
menu after the initialization phase. The commission-
ing menu leads the user through the most important
adjustment channels needed for operating the system
and starts with the indication of the BX L version
number.
Commissioning menu
The commissioning menu consists of the channels
described in the following. In order to make an ad-
justment, push button
. The set symbol flashes and
5
the adjustment can be made. Confirm the adjustment
with button
. Push button
5
3
will appear in the display.
button navigation
adjustment mode
5
changing a value
4
2
confirming a value
5
to the next
3
parameter
, the next channel
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