General Information; Instructions Prior To Installation - Baxi Luna 3 Avant Series Instructions For The User And The Installer

GB
The following remarks and instructions are addressed to Service Engineers to help them carry out a faultless installation.
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Instructions regarding lighting and operation of the boiler are contained in the 'Instructions pertaining to the user' section.
Note that installation, maintenance and operation of the domestic gas appliances must be performed exclusively by quali-
fi ed personnel in compliance with current standards.
Please note the following:
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* This boiler can be connected to any type of double- or single feeding pipe convector plates, radiators, thermoconvectors
Design the system sections as usual though taking into account the available output / pump head performances, as
shown in section 24.
* Do not leave any packaging components (plastic bags, polystyrene, etc.) within children's reach as they are a potential-
source of danger.
* Initial lighting of the boiler must be effected by a Qualifi ed Service Engineer.
Failure to observe the above will render the guarantee null and void.potentielle Gefahrenquelle darstellt.

12. INSTRUCTIONS PRIOR TO INSTALLATION

This boiler is designed to heat water at a lower than boiling temperature at atmospheric pressure. The boiler must be con-
nected to a central heating system and to a domestic hot water supply system in compliance with its performances and
output power.
Have the boiler installed by a Qualifi ed Service Engineer and ensure the following operations are accomplished:
a) careful checking that the boiler is fi t for operation with the type of gas available. For more details see the notice on the
packaging and the label on the appliance itself.
b) careful checking that the fl ue terminal draft is appropriate; that the terminal is not obstructed and that no other ap-
pliance exhaust gases are expelled through the same fl ue duct, unless the fl ue is especially designed to collect the
exhaust gas coming from more than one appliance, in conformity with the laws and regulations in force.
c) careful checking that, in case the fl ue has been connected to pre-existing fl ue ducts, thorough cleaning has been car-
ried out in that residual combustion products may come off during operation of the boiler and obstruct the fl ue duct.
To ensure correct operation of the appliance and avoid invalidating the guarantee, observe the following precautions:
1. Hot water circuit:
1.1. If the water hardness is greater than 20 °F (1° F = 10 mg calcium carbonate per litre of water) a polyphosphate or
comparable treatment system responding to current regulations.
1.2. Domestic Hot Water circuit must be thoroughly fl ushed after the installation of the appliance and before its use.
2. Heating circuit
2.1. new system
Before proceeding with installation of the boiler, the system must be cleaned and fl ushed out thoroughly to elimi-
nate residual thread-cutting swarf, solder and solvents if any, using suitable proprietary products.
To avoid damaging metal, plastic and rubber parts, use only neutral cleaners, i.e. non-acid and non alkaline. The
recommended products for cleaning are:
SENTINEL X300 or X400 and FERNOX heating circuit restore. To use this product proceeding strictly in accord-
ance with the maker's directions.
2.2. existing system
Before proceeding with installation of the boiler, the system must be cleaned and fl ushed out to remove sludge and
contaminants, using suitable proprietary products as described in 2.1.
To avoid damaging metal, plastic and rubber parts, use only neutral cleaners, i.e. non-acid and non-alkaline such
as SENTINEL X100 and FERNOX heating circuit protective. To use this product proceeding strictly in accordance-
with the maker's directions.
Remember that the presence of foreign matter in the heating system can adversely affect the operation of the
boiler (e.g. overheating and noisy operation of the heat exchanger).
Failure to observe the above will render the guarantee null and void.
IMPORTANT: when connecting an instantaneous boiler (mixed) to a system with solar panels, the maximum temperature
of the DHW at the boiler inlet must not be greater than:
• 60°C with a fl ow limiting device
• 70°C without a fl ow limiting device
925.492.2 BAXI - 925.200.1

11. GENERAL INFORMATION

INSTRUCTIONS PERTAINING TO THE INSTALLER
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