4 Maintenance and cleaning
Operation manual
8
D2CNL024A1AA
Wall-mounted condensing boiler
3P469438-12N – 2020.07
# Description
U3 Enabling / disabling domestic hot water comfort mode.
1 = enabled, 0 = disabled
To use the user settings menu
1 Press the "Enter" button when the icon is displayed on the
menu level 1 screen.
Rezultat: You can see the parameter on menu level 2.
2 Select the index with DHW+ and DHW- buttons.
3 Press the "Enter" button when the parameter that you want to
change is displayed.
Rezultat: You can see the menu level 3 screen. Up and down
arrows will appear.
4 Change the parameter with DHW+ and DHW- buttons.
5 Press the "Enter" button to confirm or the "Cancel" button to
cancel. You will return to menu level 2 after pressing "Enter" or
"Back"
3.5.4 Installer settings menu
Only qualified persons are allowed to enter the installer settings
menu.
4 Maintenance and cleaning
UPOZORENJE
The boiler should be maintained by authorised persons
every year.
Annual maintenance cycle is very important for safe operation of
your boiler and to ensure reliable, efficient and long lasting operation
of it.
Contact your service agent for details.
OPASNOST
Incorrect maintenance and repairs can lead to injury and
material damage.
▪ Never attempt to perform maintenance work or repairs
on the unit yourself.
▪ Contact your service agent.
4.1 To clean the outer surface of the
unit
Clean the outer surface of your boiler with a damp cloth and a little
solvent-free soap.
OPREZ
Sprays, solvents or cleaning agents containing chlorine
can damage the exterior, the fittings or the control unit. Do
not use them for cleaning purposes.
5 Energy saving tips
▪ Operating the unit in central heating ECO mode provides the most
economical central heating operation conditions.
▪ Do not run the boiler in domestic hot water comfort mode.
Domestic hot water comfort mode involves pre- and post-heating,
which is luxury, not necessity.
▪ Close the thermostatic radiator valves when ventilating the rooms.
▪ The largest heat loss occurs through windows and outer doors.
Check windows and doors for air-tightness. Close any blinds at
night.
▪ Do not hide radiators behind large furniture (i.e. couch, desk, etc.).
Minimum 50 cm of clearance must remain, otherwise the heated
air cannot be circulated and the room will not heat up efficiently.
▪ Do not let your room become too hot. Decreasing the room
temperature during the day saves energy.
▪ Have your combi boiler's maintenance performed at least
annually.
▪ Provide your building with sufficient heat insulation.
▪ Thermostatic valves should be used. Each room should be
adjusted according to comfort conditions. For reception rooms,
this is 20°C, living rooms 22°C, kitchens 18°C and bedrooms
18°C.
▪ Prevent radiators from getting covered by curtains.
6 Contact
Contact a local competent service agent if you have any questions
regarding the maintenance and repair of your system. You can find
the contact information of our competent services at www.daikin.com
7 Error codes
# Problem Solution
10-64 Gas valve circuit error Perform reset. If problem repeats,
contact your service agent.
11-64 Ignition does not take
place
Make sure valve on the gas line is
opened. Perform reset after third
unsuccessful ignition trial.
11-67 Flame loss during
operation
Temporary error. Wait for boiler to
re-ignite.
13-64 Fan speed error Perform reset if needed. If problem
repeats, contact your service agent.
13-65 Fan speed error Perform reset. If problem repeats,
contact your service agent.
16-64 Flue temperature
signalise overheating
Check flue gas discharge path.
Perform reset if needed. If problem
repeats, contact your service agent.
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