Boiler Installation - Baxi Luna HT 1.850 Gebrauchsanleitung

2. heating circuit
2.1. new system
Before proceeding with installation of the boiler, the system must be cleaned and flushed out thoroughly
to eliminate 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 accordance with the maker's directions.
2.2. existing system
Before proceeding with installation of the boiler, the system must be cleaned and flushed out to remove
sludge and contaminants, using suitable proprietary products as described in section 2.1.
To avoid damaging metal, plastic and rubber parts, use only neutral cleaners, i.e. non-acid and non-alkaline
such us 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.
Decide upon the boiler location, then tape the template on the wall.
Connect the pipework to the gas and water inlets prearranged on the template lower bar.
If you are either installing the boiler on a pre-ex­istent system or substituting it, we suggest you also fit settling
tanks on the system return pipework and under the boiler to collect the deposits and scaling which may remain
and be circulated in the system after the purge.
When the boiler is fix­ed on the template connect the flue and air ducts (fittings supplied by the manufacturer)
according to the instructions given in the following sections.
Connect the condensate outlet to the siphon supplied with the boiler. Connect the siphon to a drain, making
sure there is a continuous slope. Horizontal sections must be avoided.
The boiler unit is fitted for connection to an ex­ternal boiler. For this purpose, unscrew the two plugs on the
heating system delivery/return fittings if a hydraulic separator is not used (see fig. 12).
InstructIons pertaInInG to the InstaLLer

10. boIler InstallatIon

87
912.198.1 - GB