3.1
FILLING THE HEATING AND DOMESTIC
HOT WATER CIRCUITS
1. Fill the domestic hot water circuit and bring it up to pressure.
IMPORTANT
The hot water tank must be pressurised before the
heating circuit is filled.
2. Fill the heating circuit taking care not to exceed the 2 bar
pressure limit.
3. Bleed the air from the top of the boiler.
4. After bleeding the air out of the system, bring the pressure up to the
static pressure (height) plus 0.5 bar: 1.5 bar = 10 m – 2 bar = 15 m.
5. Check the power connection, the boiler room ventilation and ensure
that there are no leaks in the flue gas discharge pipes.
6. Set the thermostat (1) to between 60 and 90° C.
3 STARTING
UP
4
SERVICING
Fig. 11: Control panel
7. Set the Summer/Winter selector switch (3) to the desired position.
8. Switch the on/off switch (2) to the ON position.
9. Check the pressure of the gas supply when starting up.
10. For the oil burner check the oil supply (and return).
Carry out any bleeding, measuring and adjustment work which
may be necessary.
3.2
TROUBLESHOOTING THE BURNER
3.2.1
ACV BG 2000-S GAS BURNER
Please refer to the servicing and troubleshooting instructions for the
burner.
3.2.2
ACV OIL BURNER
Please refer to the servicing and troubleshooting instructions for the
burner.
Before carrying out any servicing or repair work, switch
the power off at the mains switch fitted in the boiler room
by the electrician.
2
1
3
4.1
RECOMMENDATION
ACV recommend that boilers should be serviced at least once a year.
The burner must be serviced and tested by a competent engineer.
4.2
SERVICING THE BOILER
1 - Switch the power off at the mains switch outside the boiler and
close the gas tap.
2 - Set the on/off switch on the control panel to the OFF position.
3 - Release and remove the chimney flue (1) to free the top of the
boiler.
4 - Remove the jacket top (2) and lift off the flue reducer (3).
5 - Remove the baffles (4) from the flue pipes (5) for cleaning.
Replace them if they are in poor condition.
6 - Remove the chamber plate (6).
7 - Brush the flue pipes (5).
8 - Clean the burner chamber (7) and the burner (8).
9 - Check the insulation on the chamber plate (6)
1. Chimney flue
2. Jacket cover
3. Chimney flue reducer
4. Baffles
5. Flue pipes
6. Chamber plate
7. Combustion chamber
8. Burner
Fig. 12: Description of the main components
which require servicing.
4.3
SERVICING THE OIL BOILER
-
Switch the power off at the mains switch outside the boiler and
close the oil inlet.
-
Proceed following instructions 2 to 9 in paragraph (4.2 Servicing
the gas boiler).
4.4
SERVICING THE SAFETY DEVICES
-
Check that all thermostats and safety devices are working properly:
boiler thermostat, cut-off thermostat and manually reset safety
thermostat.
-
Check the safety valves on both the central heating and the hot
water circuits.
7
3
2
5
4
7
1
6
8
