Open Window Detection" Activation / Deactivation; Temperature Calibration; Maintenance And Troubleshooting Tips; Routine Maintenance Operations - Zehnder Alura LCD Manuel

4.3 "Open window detection" activation / deactivation

EN
Refer to the introduction to this chapter to access the functions menu and how
to browse them.
Your radiator can detect a significant fall in temperature such
as that produced by leaving a window open for a prolonged period
in winter. It automatically adjusts its operation to save energy.
In this case, the "open window detection" indicator light
lights up.
When the temperature in your room stabilises, the radiator resumes normal
operation and the display disappears.
You can activate or deactivate this function by pressing – or +.
• The icon indicates that the function is active. This is the default setting.
• The icon indicates that the function is deactivated.
ImPOrTANT In order to get the most out of this function, your radiator has to be
positioned near the aperture without any furniture or other obstruction in between.

4.4 Temperature calibration

If after several days' operation of your radiator, you notice a
discrepancy between the temperature observed in your room and
the programmed temperature on the appliance, you can recalibrate
the radiator in 0.1°C intervals, using the following procedure.
Press the MODE key for 5 seconds to access advanced functions. Then press
the MODE key several times until the radiator calibration function appears (see the
beginning of this section for more details).
1) The calibration function displays the temperature measured by your
appliance (e.g.: the appliance displays 19.0°C).
2) Measure the room temperature near the radiator using a reference
thermometer (e.g.: the thermometer displays 20.0°C). NOTE: your ther-
mometer must be placed about 2m from the radiator, with no obstacle
between them.
3) If the temperature measured differs from that indicated by your appliance,
press the – or + keys to make them match (e.g.: press the + key several
times until your screen shows 20.0°C).
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5. maintenance and troubleshooting tips

5.1 routine maintenance operations

High-quality materials and surface treatment protect your radiator against
corrosion and impacts.
To maximise the service life of your appliance, we recommend that you do not
use abrasive or corrosive materials to clean it. Use warm soapy water and a dry cloth
instead.

5.2 Troubleshooting

Your radiator can notify you by means of error messages
shown on the display.
The equivalent table below summarises the 2 error codes possible and the steps
to take:
Error
message
The radiator
E1
stops heating.
The radiator
E2
stops heating.
AFTEr A POWEr OUTAgE lASTINg OvEr ONE hOUr:
If the appliance was operating in programme mode when the power cut occur-
red, it will restart in Frost protection mode.
The time and day then need to be reset (see chapters 4.1 and 4.2).
40008126 40008126
Consequence Diagnosis
Communication fault with
the radiator regulation: the
display board no longer
communicates with the
regulation board.
Sensor fault: the regulation
board no longer receives
temperature measurement
information.
Maintenance and troubleshooting tips 43
EN
Steps to take
Contact your
dealer.
Contact your
dealer.