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Call up MENU | SETTINGS | Installer level | Diagnostics
codes | 100 - 199 | D.124 Building circuit DHW conf..
The adjustment range is between 200 mbar and 900 mbar.
The heat pump operates at its optimum level when the nom-
inal flow can be achieved by setting the available pressure
(Delta T = 5 K).
9.2
Remaining feed head of the product
The remaining feed head cannot be set directly. You can
limit the remaining pump head in order to adjust the on-site
pressure loss in the heating circuit.
Call up MENU | SETTINGS | Installer level | Diagnostics
codes | 200 - 299 | D.231 Max. remaining feed head.
9.2.1
Heating circuit pump remaining feed head
1
2
3
4
B
900
800
700
600
500
400
300
200
100
0
0
200
400
600 800 1000 1200 1400
A
Volume flow (l/h)
B
Remaining feed head
[mbar]
1
10% PWM
2
20% PWM
3
30% PWM
4
40% PWM
9.2.2
Filling valve and stopcock pressure loss
B
120
100
80
60
40
20
0
0
500
1000
A
Volume flow (l/h)
8000017440_FT Installation and maintenance instructions
5
6
7
8
9
10
1600 1800
2000
5
50% PWM
6
60% PWM
7
70% PWM
8
80% PWM
9
90% PWM
10
100% PWM
1500
2000
2500
3000
B
Pressure loss (mbar)
9.3
Setting the min. and max. flow temperature
in heating mode (with no control connected)
1.
Call up MENU | SETTINGS | Installer level | In-
stallation configuration | Circuit | Min. target flow
temp.:or MENU | SETTINGS | Installer level | In-
stallation configuration | Circuit | Max. target flow
temp.:.
◁
The display shows the minimum or maximum flow
temperature in heating mode.
2.
Change the flow temperature in heating mode and
confirm the change by pressing
–
Max. heating mode target flow temperature: 75 ℃
9.4
Instructing the end user
Danger!
Risk of death from legionella.
Legionella multiply at temperatures below
60 °C.
▶
Ensure that the end user is familiar with
all of the Anti-legionella measures in order
to comply with the applicable regulations
regarding legionella prevention.
A
▶
Explain to the end user how the safety devices work and
where they are located.
▶
Inform the end user how to handle the product.
▶
Draw particular attention to the safety warnings, which
the end user must follow.
▶
Inform the end user that they must have the product
maintained in accordance with the specified intervals.
▶
Explain to the end user how to check the system's water
volume/filling pressure.
▶
Pass all of the instructions and documentation for the
product to the end user for safe-keeping.
10 Troubleshooting
10.1
Contacting your service partner
If you contact your service partner, please mention if pos-
sible:
–
The fault code that is displayed (F.xx)
–
The status code that is displayed by the product (S.xx)
10.2
Displaying the data overview (current sensor
A
values)
The data overview provides information on the display about
the current values for the product's sensors. These can be
called up via the menu.
Call up MENU | SETTINGS | Installer level | Data over-
view.
If you are in MENU | SETTINGS | Installer level | Test
modes | Actuator test, you can easily call up the data
overview by pressing
.
.
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