Instructions Prior To Installation; Installing The Boiler; Contents Of Pack - Baxi NUVOLA PLATINUM + Instruction Manual For Users And Fitters

INSTRUCTIONS PRIOR TO INSTALLATION

The following notes and instructions are addressed to installers to allow them to carry out trouble-free installation. Instructions for
igniting and using the boiler are contained in the 'Instructions for Users' section. The installation must satisfy the requirements of
UNI and CEI standards and local by-laws and technical regulations.
Moreover, the installation technician must be qualified to install heating appliances. 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 fancoil unit. Design the system
sections as usual, though, bearing in mind the available capacity-head at the plate (see annex "SECTION" E at the end of this
manual).
• Initial ignition of the boiler must be carried out by the Authorised Service Centre, as indicated on the attached sheet.
ADDITIONAL PUMP WARNING: if an additional pump is used, a suitably sized hydraulic circuit breaker should be fitted to the
heating circuit. This will allow the water pressure switch on the boiler to operate correctly.
ADJUSTING THE TEMPERATURE OF THE HIGH TEMPERATURE HEATING SYSTEM: to avoid frequent starting and stopping,
raise the minimum temperature setpoint of the boiler in the heating mode by setting parameters 740, to not less than 45°C, using
the procedure described in section 14.2.1.
TEMPERATURE ADJUSTMENT ON LOW TEMPERATURE HEATING SYSTEM: for a low temperature system (such as
underfloor heating), reduce the maximum CH temperature setpoint on the boiler by setting parameter 741 to a value not greater
than 45°C.
Failure to observe the above will render the warranty null and void.
Do not leave any packaging (plastic bags, polystyrene, etc.) within the reach of children as they are a potential source of danger.

12. INSTALLING THE BOILER

The template outline is shown in annex "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. Make sure the rear part of the boiler (back) is as parallel as possible to the wall (otherwise,
shim the lower part). 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 continuous.
Avoid horizontal stretches.
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).

12.1 CONTENTS OF PACK

• Template (see annex "SECTION" C at the end of this manual)
• Gas tap with union
• Water inlet tap with union
• 2 Unions ?3/4 + 1 union ?1/2 + set of gaskets
• 10 mm expansion rawlplugs and supports
ACCESSORIES supplied on request: - heating flow/return taps and telescopic joint.
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