Instruction Manual
4
WARNING!
Read this instruction manual carefully.
This manual is intended to guide the installation, maintenance, and operation of the X Boiler BD Series.
Failure to adhere to these guidelines can result in severe personal injury or substantial damage to property.
The manufacturer cannot accept responsibility for any damages and losses resulting from:
•
incorrect installation of the boiler
•
technical modifications to the boiler beyond the scope of instructions found in this manual
•
incorrect use of the boiler or work done by an unqualified person
Fig. 1
Fig. 2
Fig. 3
INSTRUCTIONS FOR FILLING THE BOILER WITH WATER
These instructions should be followed before the start up of the condensing boiler connected to a
Central Heating System (C.H.)
1.
Fill the heating circuit with water and vent the radiators before start up.
2.
Check that the connection of the electrical cord to the boiler is correct (network 23V/50 Hz)
L – brown; N – blue; PE – yellow/green.
Do not swap the L & N cords! If the L & N cords are changed, the boiler will enter failure
mode and the error code E01 will be displayed.
3.
Close the gas cut-off valve!
4.
Open valves which cut-off the boiler from the C.H. circuit.
5.
Remove the front cover of the boiler by unscrewing the relevant fixing screws (Fig. 1).
6.
Remove the front cover of the combustion chamber (Fig. 2).
7.
Loosen the stopper on the automatic air-vent of the pump. In order to protect the pressure
transducer from water, point the outlet of the stopper to the right (Fig. 3).
8.
Turn on the boiler. Wait until the start up procedure ends (during that time, the boiler is
testing the internal assembly and the ventilation system), this takes about 10-30 seconds.
9.
Fill the boiler with water by using the filling valve mounted on the C.H installation. It is
important to open the filling valve slowly to protect the boiler and the components of the
C.H. system against hydraulic shock.
10. While filling the boiler with water, check and control the pressure using
the analogue pressure gauge on the boiler’s front cover, or the electronic
manometer on the controller display (depending on the boiler’s type).
Shut off the filling valve after reaching a pressure of 1.0-1.5 bar.
Note:
in some boiler models, at the end of the start up procedure, the
“support the venting of boiler” function starts. This function is signalised on
the controller display by “Po” and lasts 3 minutes. The “support the venting”
function requires the water pressure to be above 0.5 bar, therefore, it is best to
maintain the water pressure in the boiler in the range 1.0-1.5 bar.
11.
Set the operating mode to WINTER according to the boiler instruction.
If the boiler controller has been connected to the room thermostat, then
increase the desired temperature; the boiler should start operating in
C.H. mode.
12.
Because the gas valve outside the boiler is closed, the boiler will stop
operating (E01 error code – a lack of gas). The pump will continue to
operate, removing air flowing in with water from the installation and
providing continuous water flow through the heat exchanger. Leave the
boiler in this state for 2-3 min.
