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1
▶
Set the pressure using the adjusting screw (1).
Position of the
Pres-
adjusting screw
sure
Right-hand stop
35 kPa
(turned all the
(0.35 bar)
way down)
Mid-position
30 kPa
(5 turns to the
(0.30 bar)
left)
5 further turns to
17 kPa
the left from the
(0.17 bar)
mid-position
▶
Install the front casing.
8.8.4
Setting the bypass valve
Applicability: Germany
The pressure can be adjusted in a range between 17 kPa
(0,17 bar) and 35 kPa (0,35 bar). The default value is ap-
prox. 30 kPa (0,30 bar) (mid-position).
The pressure changes by approximately 1 kPa (0,01 mbar)
each time the adjusting screw is rotated. The pressure is
increased by turning clockwise and decreased by turning
anti-clockwise.
On 25 kW units
With the pump operating mode setting D.014 "Pump speed
target value = auto (∆p Limit)", the factory settings must not
be changed.
Caution.
Risk of material damage caused by incor-
rect setting of the high-efficiency pump
If the pressure at the bypass valve is in-
creased (by turning it clockwise) and the
pump output is set to less than 100%, the
product may not operate correctly.
▶
In this case, set the pump output to
5 (100%) using diagnostics code D.014.
▶
Remove the front casing. (→ Page 12)
0020181421_04 ecoCOMPACT Installation and maintenance instructions
Adapting the unit to the heating installation 8
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
1
▶
Set the pressure using the adjusting screw (1).
Position of the
Pres-
adjusting screw
sure
Right-hand stop
35 kPa
(turned all the
(0.35 bar)
way down)
Mid-position
30 kPa
(5 turns to the
(0.30 bar)
left)
5 further turns to
17 kPa
the left from the
(0.17 bar)
mid-position
▶
Install the front casing.
8.9
Setting the domestic hot water temperature
▶
Observe the applicable regulations regarding legionella
prevention.
8.10
Descaling the water
The probability of scale increases as the water temperature
increases.
▶
Descale the water as required.
8.11
Handing the product over to the end user
1.
When you have finished the installation, attach the
sticker supplied (835593) to the front of the product in
the user's language.
2.
Explain to the end user how the safety devices work
and where they are located.
3.
Inform the end user how to handle the product. Answer
any questions the end user may have. In particular,
draw attention to the safety warnings which the end
user must follow.
4.
Inform the end user that they must have the product
maintained in accordance with the specified intervals.
5.
Pass all of the instructions and documentation for the
product to the end user for safe-keeping.
6.
Inform the end user about measures taken to ensure
the combustion air supply and flue system, and instruct
the end user that he must not make any changes.
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
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
31
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