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Installation and maintenance instructions 0020213394_05
10.2.4.4 Remaining feed head for VWF 15x/4
environment circuit pump at nominal
volume flow
0
200
400
600
800
1000
1200
40
50
60
70
80
90
100
B
A
1
2
3
1
Air heat source
2
Ground heat source
3
Ground water heat
source
A
Remaining feed head in
hPa (mbar)
B
Pump output in %
10.2.4.5 Remaining feed head for VWF 19x/4
environment circuit pump at nominal
volume flow
0
200
400
600
800
1000
1200
40
50
60
70
80
90
100
B
A
1
2
3
1
Air heat source
2
Ground heat source
3
Ground water heat
source
A
Remaining feed head in
hPa (mbar)
B
Pump output in %
10.3
Setting the flow temperature in heating mode
(with no control connected)
1.
Activate manual operation.
–
Menu
→
Installer level
→
Configuration
→
Enable
limp home mode
2.
Press
( ).
◁
The display shows the flow temperature in heating
mode.
3.
Change the flow temperature in heating mode by
pressing
or
.
–
Max. heating mode target flow temperature: 75
℃
4.
Confirm this change by pressing
(
OK
).
10.4
Setting the flow temperature in cooling mode
(with no control connected)
1.
Activate manual operation.
–
Menu
→
Installer level
→
Configuration
→
Enable
limp home mode
2.
Press
twice.
◁
The display shows the value of the flow temperat-
ure in cooling mode.
3.
Change the flow temperature in cooling mode by
pressing
or
.
4.
Confirm this change by pressing
(
OK
).
Note
At the factory, the target flow temperature
can be set to between 20 °C and 16 °C in
passive cooling mode.
10.5
Handing the product over to the end user
▶
Explain to the end user how the safety devices work and
where they are located.
▶
Inform the end user how to handle the product.
▶
In particular, draw attention to the safety warnings which
the end user must follow.
▶
Inform the end user of the necessity to have the product
maintained according to the specified intervals.
▶
Pass all of the instructions and documentation for the
product to the end user for safe-keeping.
11 Troubleshooting
11.1
Displaying the Live Monitor (current product
status)
Menu
→
Live Monitor
You can use the Live Monitor to display the current status of
the product.
Status codes
–
Overview (
11.2
Checking fault codes
The display shows a fault code
F.xxx
. A plain text display
explains the displayed fault code.
Fault codes have priority over all other displays.
Fault codes (
If multiple faults occur at the same time, the display shows
the corresponding fault codes for two seconds each in se-
quence.
▶
Rectify the fault.
▶
To restart the product, press
reset
(
→
Operating instruc-
tions).
