Baxi CHAPPEE NXR4, User Manual, Page: 4 / 8

4 Réf. : CI - 389 - C
3. S
tart-up
O
nce the boiler thermostats have been set on selected
flow temperatures :
Activate system main switch, mandatory as per regulations
in force, in order to control burner through the switch located
on the control panel. If a disconnecting device is incorporated
to the burner, check that it is engaged.
Once the burner has been started, it will automatically obey
the impulses sent by the control devices.
4. S
hutdown
B
urner
To stop the burner, put main switch and control panel switch
off (3)
In case of prolonged stoppage, shut the supply and combus-
tion valves.
At the end of the heating season, clean thoroughly (see
instructions on burner notice)
B
oiler
At the end of the heating season, clean the boiler thoroughly
(see maintenance).
In case of prolonged stoppage, shut the boiler doors,
disconnect the flue stack and close the flue hood to avoid any
air circulation inside.
The system must not be drained, except if the boiler may not
be started-up at the beginning of the cold season.
A
ntifreeze
An efficient protection against freezing can be obtained by
incorporating a certain amount of antifreeze in the heating
system.
Central heating antifreeze is of a special grade. Your installer
shall give you all useful details on that matter.
It is then necessary to ensure that no communication is
possible between the heating system and external water
supply.
In case of power failure, the burner stops, as if the main
switch were switched off, and starts automatically as soon
as power supply is restored.
Note : After starting up a system for the first time, it is
recommended to clean the pump filter in the case of oil firing,
or the line filter in the case of gas firing.
After a few hours of operation, check the tightness of the
doors. If necessary, tighten their fastening nuts.