Instructions Prior To Installation; Installing The Boiler; Contents Of Pack - Baxi LUNA DUO-TEC IN+ Instruction Manual For Users And Fitters

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:
• When installing the unit in environments with temperatures lower than 0°C, take the necessary precautions to avoid the
formation of ice in the siphon and in the condensation drain.
• 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
danger.
• 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.
8.

INSTALLING THE BOILER

The boiler can be installed in the following ways:
1. Recessed installation outdoors.
2. Wall-mounted installation outdoors in partially sheltered areas.
3. Wall-mounted open air installation outdoors.

CONTENTS OF PACK

• Template (see figure in annex "SECTION" C at the end of this manual)
• Boiler supporting bar for installation in box
• Boiler supporting bar for wall-mounted installation
• 8 mm expansion plugs and pressure screws
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.
Do not lift the boiler exerting pressure on the plastic parts like the siphon and the flue turret.
Tighten the boiler water connections with care (maximum tightening torque 30 Nm).
Before starting up the boiler, fill the water siphon to prevent the fumes from diffusing in the room.
DIMENSIONS OF THE BOILER AND BOX
The dimensions of the boiler and box and the relative installation positions of the water connections are shown in the annex
"SECTION" C at the end of the manual.
Condensate drain point
Safety valve drain point
Heating system flow (G3/4")
DHW flow (G1/2") models 24 and 28 / storage boiler
(G3/4") models 1.12 and 1.24
GAS inlet (G3/4")
Cold domestic water inlet / System filling tap (G1/2")
Heating system return (G3/4")
13 7689490.01 (1-09/17)