Daikin R2TND012A4AA [25/28] Hand over to the user
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Daikin R2TND012A4AA [25/28] Hand over to the user

Daikin R2TND012A4AA [25/28] Hand over to the user
6 Hand-over to the user
Installation manual
25
R2CND024A4AA + R2TND012~024A4AA
Wall-mounted condensing boiler
3P469346-4E – 2017.07
a
e f g
cb
d
a Left dial
b LCD screen
c Right dial
d Mode / Reset
e Status indicator
f Cancel / Back
g Menu / Enter
1 Make sure the system is filled with water and fully vented as
described in this manual.
2 Check that the central heating and domestic hot water isolating
valves are open.
3 Check that gas service valve is open.
4 Connect the unit to the main power supply. The user interface
will be energised.
5.4.1 To commission the central heating
1 Set mode to winter mode via "Mode" button on the user
interface. ( and icons are displayed on the screen.)
2 Set central heating set temperature to maximum value via left
dial. If connected, make sure all external controls such as
outdoor sensor and room thermostat are calling for heat.
3 The boiler control now go through its ignition sequence. The
status indicator will glow constantly in blue if flame is
established. icon will blink when central heating is active.
INFORMATION
After first power ON, the boiler does not increase its
capacity above a preset value for about 12minutes, even if
there is demand.
▪ First 0~2minutes: The electronic gas adaptive system
calibrates itself.
▪ Next 8~10minutes: The boiler performs the low water
temperature function. You can skip this function by
pressing the "Cancel" button for 5seconds.
4 Press "Cancel" and "Menu" buttons together 5 seconds to
activate the sweeper mode. With sweeper mode, boiler can be
operated at maximum and minimum capacity independent of
heat demand.
5 "tst - 100" caption will appear on the screen. This means boiler
is operating at nominal capacity. Check nominal capacity
operation.
6 To quit sweeper mode, again press "Cancel" and "Menu"
buttons together five seconds. Sweeper mode will be
deactivated and boiler will return to normal operation mode.
Sweeper mode also finishes automatically after 15minutes.
5.4.2 To commission the central heating
capacity setting
The boiler's central heating capacity can be adjusted form the
control panel. If the heat loss of installation is much less than that of
the boiler nominal capacity, it is recommended to reduce the boiler
nominal capacity to the installation capacity. Refer to service
instructions for this operation.
5.4.3 To commission the domestic hot water
(Only for model R2CND024A4AA)
1 Set domestic hot water set temperature to its maximum value
via right dial.
2 Open hot water taps fully and ensure that water flows freely
from them.
3 icon will blink when domestic water heating is active.
4 Measure the domestic hot water inlet temperature. (Cold water
drawn off from taps)
5 Check that domestic hot water temperature rise is around 34°C.
6 Hand-over to the user
After completing the installation and commissioning of the system
the installer should hand over to the householder.
▪ Hand the operation manual to the householder and inform them
about his/her responsibilities under the relevant national
regulations.
▪ Explain and demonstrate the lighting and shutting down
procedures.
▪ Explain the function and the use of the boiler heating and
domestic hot water controls.
▪ Explain and demonstrate the function of temperature controls,
radiator valves etc., for the economic use of the system.
▪ Explain the function of the boiler error mode. Emphasise that if an
error is indicated refer to "Error codes" in the operation manual.
▪ Inform the user about frost protection function and advise never to
cut off the electric supply to the boiler.
▪ Emphasise that a comprehensive service should be carried out
annually, especially before winter.
▪ Inform the householder of the guarantee and the requirement to
register it to receive the full benefit of the warranty.

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