Joannes AZ 4 Bedienungsanleitung Seite 21

The burner room must have openings towards the outside in compliance with local
Standards in force. If in doubt relative to the circulation of air, first of all we recommend
that the CO2 value is measured, with the burner functioning at maximum flow rate and
the room ventilated, only via the apertures destined to feed air to the burner andthen
by measuring the CO2 value again, with the door open.The value of CO2 measured in
both cases must not change in a significant manner.If there are more than one burner
and fan in the same room, this test must be performed with all appliances functioning
simultaneously.
Never obstruct the air apertures of the burner room, the burner fan intake apertures
and any air duct or ventilation grid and external dissipations, with the purpose of pre-
venting:- the formation of toxic/explosive gas mixtures in the air of the burner room;-
combustion with insufficient air, from which dangerous, costly and polluting functioning
oc-curs.
The burner must always be protected from rain, snow and freezing.
The burner room must always be kept clean and free from volatile substances, which
could be sucked inside the fan and block the interior pipes of the burner and the com-
bustion head. Dust is extremely dangerous, especially if this can deposit on the fan
blades, where it will reduce ventilation and produce pollution during combustion. The-
dust an also accumulate on the rear part of the flame stability disc in the combustion
head and cause a poor air/fuel mixture.
The burner must be fed with the type of fuel for which it has been set-up as indicated
on the data plate and in the technical features supplied in this manual. Moreover, it
must be supplied with all control and safety devices requested by local regulations in
force. Pay great care that no external material enters the line during installation.
Make sure that the electric power supply used for the connection is in compliance with
the features indicated on the data plate and in this manual.Make an electric plant with
an effective connection to an earth plant, in compliance with Standards in force. The
earth cable must be a couple of cm. longer that the phase and neutral wire.
If in doubt regarding efficiency, it must be checked and controlled by qualified staff.
Never ex-change the neutral and phase cables.The burner can be connected to the
mains electricity with a plug-socket connection only if this is equipped in a way that the
coupling configuration prevents the inversion of phase and neutral.Install an omnipo-
larswitch with opening between contacts of at least 3mm upstream from the appliance
as reque-sted by the existing legislation.
The entire electric system and in particular all cable sections, must be suitable for the
maxi-mum absorbed power value indicated on the appliance data plate and in this
manual.
UK
If the burner power supply cable is faulty, it must only be replaced by qualified staff.
21