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Instructions Prior To Installation; Installing The Boiler; Contents Of Pack; Boiler Dimensions And Gas Water Connections - Baxi Luna DUO-TEC series Gebrauchsanleitung Für Den Benutzer Und Installateur

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INSTRUCTIONS PRIOR TO INSTALLATION

The following notes and instructions are addressed to fitters to allow them to carry out trouble-free installation. Instructions for
lighting and using the boiler are contained in the 'Instructions for Users' section. Installation, servicing and running of domestic
gas-fired systems must be performed by qualified technicians, in compliance with current regulations.
Additionally, bear in mind the following:
• This boiler can be connected to any type of double- or single-pipe convector plate, radiator or thermoconvector. Design the
system sections as usual, though, bearing in mind the available flow-head at the plate, as shown in section 16.
• Do not leave any packaging (plastic bags, polystyrene, etc.) within the reach of children as they are a potential source of dan-
ger.
• Initial lighting of the boiler must be carried out by an authorised Service Engineer, as indicated on the attached sheet.
Failure to observe the above will render the guarantee null and void.
ADDITIONAL PUMP WARNING
If an additional pump is used on the heating system, position it on the boiler return circuit. This will allow the correct operation of
the water pressure switch.
SOLAR WARNING
If the instantaneous (mixed) boiler is connected to a system with solar panels, the maximum temperature of the domestic hot water
entering the boiler must not exceed 60°C.
Do not leave any packaging (plastic bags, polystyrene, etc.) within the reach of children as they are a potential source of
danger.

9. INSTALLING THE BOILER

The template outline is shown in "SECTION C" at the end of this manual.
After deciding the exact location of the boiler, fix the template to the wall. Connect the system to the gas and water inlets present
on the lower bar of the template. Fit two G3/4 taps (flow and return) on the central heating circuit; these taps make it possible to
carry out important operations on the system without draining it completely. If you are either installing the boiler on an existing
system or replacing one, as well as the above, fit a settling tank under the boiler on the system return line in order to collect any
deposits and scale circulating in the system after flushing. After fixing the boiler to the template, connect the flue and air ducts,
supplied as accessories, as described in the following sections. Connect the siphon to a drain trap, making sure the slope is con-
tinuous. Avoid horizontal stretches.
Tighten the boiler water connections with care (maximum tightening torque 30 Nm).
9.1

CONTENTS OF PACK

• Template (see SECTION C at the end of this manual)
• Boiler support bar
• Gas tap (1) and Water inlet tap (2)
• 8 mm expansion grips and pressure screws
ACCESSORIES supplied on request: - heating flow/return taps and telescopic joints.
9.2

BOILER DIMENSIONS AND GAS WATER CONNECTIONS

The boiler dimensions and the gas/water connectios are shown in SECTION C.
A
Condensate drain point
B
Heating flow
C
D.H.W. outlet (G1/2") / Boiler heating flow (G3/4")
7108194.01 (1-11/11)
D
GAS inlet
E
Cold domestic water inlet / System filling tap
F
Heating return
24

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