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9 Adjusting the hot water temperature
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
9
Adjusting the hot water temperature
You can reset/change the system parameters (→ section
"Using diagnostics codes").
Overview of diagnostics codes (→ Page 30)
9.1
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 ℃
10 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 of the necessity to have the product
maintained on a regular basis.
▶
Instruct the operator about measures taken to ensure the
supply of combustion air and flue gas pipe.
22
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.
11 Inspection and maintenance
11.1
Observing inspection and maintenance
intervals
▶
Adhere to the minimum inspection and maintenance in-
tervals. Depending on the results of the inspection, it may
be necessary to bring maintenance work forward.
Inspection and maintenance work – Overview
(→ Page 40)
11.2
Procuring spare parts
The original components of the product were also certified
as part of the declaration of conformity. If you do not use cer-
tified Vaillant original spare parts for maintenance or repair
work, this voids the conformity of the product. We therefore
strongly recommend that you fit Vaillant genuine spare parts.
Information about available Vaillant original spare parts is
available by contacting the contact address provided on the
reverse of this document.
▶
If you require spare parts for maintenance or repair work,
use only Vaillant genuine spare parts.
11.3
Checking the CO₂ content
1.
Start up the product with the check programme (P.01)
and set the value.
–
Setting value for the programme P.01: 100
Check programmes – Overview (→ Page 30)
2.
Wait until the value that is read is stable.
–
Waiting period for reading a stable value: 5 min
1
3.
Unscrew the cover from the flue gas analysis point (1).
4.
Measure the CO₂ content at the flue gas analysis point
(1).
5.
Compare the measured value with the corresponding
value in the table.
Checking the CO₂ content
Great Bri-
tain
Removed
front cas-
ing/installed
front casing
Natural gas
G20
9.2 ±1 %
◁
The value is OK.
▽
The value is not OK; you cannot start up the
product.
▶
Set the CO₂ content. (→ Page 23)
Installation and maintenance instructions HOME 0020224355_00
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