Instructions Prior To Installation; Circulation Pump; General Information - Baxi POWER HT 1.850 Manual De Uso Destinado Al Usuario Y Al Instalador

The following remarks and instructions are addressed to Service Engineers to help them carry out a faultless
installation. Instructions regarding lighting and operation of the boiler are contained in the 'Instructions per-
taining to the user' section.
Note that installation, maintenance and operation of the gas appliances must be performed exclusively by
qualified personnel in compliance with current standards.
Please note the following:
• Install the boiler in a permanent ventilated central heating boiler room.
• 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 convector plates, radiators, thermoconvectors. Design the
system sections as usual though taking into account the available output / pump head performances.
• 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 Qualified Service Engineer.
• Make sure that the room where the boiler is installed has a sufficient supply of air to ensure complete
combustion of the gas consumed by the appliance. Install unblockable ventilation grilles as necessary in
accordance with the Rules in force.
• Connect the boiler directly to an efficient flue to vent all fumes and combustion gases outdoors. Make sure
that the pipe connecting the boiler to the flue is not smaller in diameter than the boiler's flue outlet. Make
sure that the flue is in good condition and free from holes or cracks that could reduce draw.
Failure to observe the above will render the guarantee null and void.

9. INSTRUCTIONS PRIOR TO INSTALLATION

This boiler is designed to heat water at a lower than boiling temperature at atmospheric pressure. The boiler
must be connected to a central heating system and to a domestic hot water supply system in compliance with
its performances and output power.
IMPORTANT! The following components are not installed in the boiler as supplied. It is the installer's
responsibility to provide them:
• Expansion vessel;
• Pressure safety valve;

• Circulation pump;

• Filling system cock.
Before connecting the boiler have the following operations effected:
a) careful checking that the boiler is fit 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 flue terminal draft is appropriate; that the terminal is not obstructed and that no
other appliance exhaust gases are expelled through the same flue duct, unless the flue is especially desig-
ned to collect the exhaust gas coming from more than one appliance, in conformity with the standards and
regulations in force.
c) careful checking that, in case the flue has been connected to pre-existing flue ducts, thorough cleaning
has been carried out in that residual combustion products may come off during operation of the boiler and
obstruct the flue duct.
ISTRUCTIONS PERTAINING TO THE INSTALLER

8. GENERAL INFORMATION

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