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1
▶
Regulate the pressure using the adjusting screw (1).
Position of the adjusting
screw
Right-hand stop (screwed
all the way in)
Mid-position (six anti-
clockwise rotations)
Five further anti-clockwise
rotations starting from the
mid-position
▶
Install the front casing. (→ Page 10)
8.4
Setting the hot water temperature
Danger!
Risk of death from Legionella.
Legionella multiply at temperatures below
60 °C.
▶
Ensure that the operator is familiar with all
of the Anti-legionella measures in order
to comply with the applicable regulations
regarding legionella prevention.
▶
Set the hot water temperature.
Conditions: Water hardness: > 3.57 mol/m³
–
Hot water temperature: ≤ 50 ℃
9
Handing the product over to the
operator
▶
When you have finished the installation, attach the sticker
supplied (in the operator's language) to the product
cover.
▶
Explain to the operator how the safety devices work and
where they are located.
▶
Inform the operator how to handle the product.
▶
In particular, draw attention to the safety information
which the operator must follow.
▶
Inform the operator that they must have the product
maintained in accordance with the specified intervals.
▶
Instruct the operator about measures taken to ensure the
supply of combustion air and flue gas pipe.
0020230529_02 ecoFIT sustain Installation and maintenance instructions
Handing the product over to the operator 9
Notes/application
If the radiators do not heat
up sufficiently at the default
setting. In this case, you must
set the pump to the maximum
speed.
Default setting
If noises are produced in the
radiators or radiator valves.
10 Troubleshooting
10.1
Rectifying faults
▶
If fault messages (F.xx) appear, rectify the fault after
referring to the table in the appendix or using the check
programmes. (→ Page 15)
Overview of fault codes (→ Page 33)
If several faults occur at the same time, the display shows
the corresponding fault messages for two seconds each in
alternation.
▶
Press
(max. three times) to restart the product.
▶
If you are unable to remedy the fault and the fault recurs
despite reset attempts, contact customer service.
10.2
Calling up and clearing the fault memory
The last 10 fault messages are stored in the fault memory.
▶
Call up the installer level. (→ Page 15)
▶
Navigate to the fault codes.
◁
The number of faults that have occurred is shown in
the display and the faults that are currently called up
are displayed with their fault numbers F.xx.
▶
Press
or
to call up individual fault messages.
▶
To delete the entire fault list, navigate to diagnostics code
D.094 in the installer level.
▶
Set the diagnostics code to 1, and confirm by pressing
.
10.3
Resetting parameters to factory settings
1.
Navigate to diagnostics code D.096 in the installer level.
2.
Set the diagnostics code to 1, and confirm by pressing
.
10.4
Preparing the repair work
1.
Switch off the product.
2.
Disconnect the product from the power mains.
3.
Remove the front casing.
4.
Close the gas isolator cock.
5.
Close the service valves in the heating flow and in the
heating return.
6.
Close the service valve in the cold water pipe.
7.
Drain the product if you want to replace water-bearing
components of the product.
8.
Ensure that water does not drip on live components
(e.g. the electronics box).
9.
Use only new seals and O-rings. Do not use any addi-
tional sealing materials.
21
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