4 Installation
Installation manual
9
D035A1/4AA + D035A4AA
Wall-mounted condensing boiler
3P469346-5E – 2017.06
Energy-related products (ErP) specifications
Symbol
Unit
D2CND028A*AA
D2CND035A*AA
D2TND028A4AA
D2TND035A4AA
Daily electricity consumption
Q
elec
kWh
0.153
0.204
—
Annually electricity consumption
AEC
kWh
33
44
—
Water heating energy efficiency
η
wh
%
84
83
—
Water heating energy efficiency class
—
—
A
—
Daily fuel consumption
Q
fuel
kWh
23.25
30.26
—
Annual fuel consumption
AFC
GJ
18
23
—
(a)
High-temperature regime means 60°C return temperature at heater inlet and 80°C flow temperature at heater outlet.
(b)
Low temperature means for condensing boilers 30°C, for low-temperature boilers 37°C and for other heaters 50°C return temperature (at heater
inlet).
4
Installation
4.1
To open the unit
WARNING
Only qualified competent persons are allowed to open the
unit.
Certain actions explained in this document, such as gas conversion,
optional equipment connection, require that the front cover is
opened.
1
Loosen the screw that holds the right mounting clips (1).
2
Dismantle the two mounting clips that hold the front cover (2).
3
Remove the front cover forwards (3).
3
a
2
1
a
Front cover
4
Loosen the two screws of the control panel (4).
4
a
a
Control panel
5
Pull the control panel forwards (5).
5
4.2
Installation site requirements
WARNING
The boiler must be installed by a qualified installer in
accordance with local and national regulations.
WARNING
The following instructions shall be observed when
determining the installation site.
▪ Mount this unit on vertical, flat walls only.
