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ENGLISHFRANCAISNEDERLANDSESpAñoLITALIANoDEuTSCH
664Y0200.C
CoMMISSIoNING AND MAINTENANCE
FILLING THE HOT WATER AND HEATING CIRCUITS
IMPORTANT
Itisessentialthatthewatertankisunderpressure
beforetheheatingcircuitisfilled.
1. Fill the hot water circuit and pressurise it.
2. Fill the heating circuit - do not exceed a pressure of 2 bar.
3. Vent the air in the top of the boiler.
4. Once you have vented the system, return the pressure to
static pressure plus 0.5 bar.
Heightoftheheatingsystem:
•10m➠heatingcircuitpressure=1,5bar
•15m➠heatingcircuitpressure=2bar
USING THE BOILER FOR THE FIRST TIME
1. Check the gas supply connection and ensure that it is free
from leaks.
2. Check the electrical connection to the boiler and the boiler
room ventilation, and ensure that the flue gas discharge
pipes and the burner chamber plate are properly gas tight.
3. Set the boiler thermostat or potentiometer to between 60
and 90°C.
4. Move the Summer/Winter switch to the required position.
5. Move the main switch to “ON”.
6. Carry out the necessary venting operations, measurements
and settings.
RECOMMENDATION
ACV recommends that you have the boiler serviced at least once
a year. Boiler servicing and checking must be carried out by a
qualified engineer.
BOILER MAINTENANCE [refertofig.1and2onpage5]
1. Isolate the boiler from the electrical supply at the switch on
the external control box, and close the gas supply valve.
2. Move the main switch on the control panel to “OFF”.
3. Remove the boiler cover (2) and dismantle the upper section
of the chimney reducer (3).
4. Remove the baffles (24) from the flue ways (23) and clean
them. Replace these items if worn.
5. Remove the burner cover and burner.
6. Brush the flue ways (23).
7. Clean the combustion chamber (20) and the burner.
8. Check the condition of the seal on the burner chamber
plate.
SAFETY EQUIPMENT MAINTENANCE
- Check that all thermostats and safety devices operate correctly:
boiler thermostat/potentiometer, thermal reset high limit
thermostat and manual reset high limit thermostat.
- Check the safety valves in both the heating circuit and the hot
water circuit.
DRAINING THE BOILER
Thewaterdrainingfromthedraincockis
veryhotandcancauseseriousburns.Keep
allpersonsawayfromrunninghotwater.
Drainingtheheatingcircuit (fig. 11 on page 10)
1. Move the main switch on the control panel to “OFF”, isolate the
boiler from the electrical supply at the switch on the external
control box and close the gas supply valve.
2. Close the isolating valves (8) in the heating circuit.
3. Connect a flexible tube to the drain cock (9).
4. Open the drain cock (9) to drain the heating circuit.
Drainingthehotwatercircuit (fig. 12 on page 10)
1. Move the main switch on the control panel to “OFF”, isolate the
boiler from the electrical supply at the switch on the external
control box and close the gas supply valve.
2. Release the pressure in the heating circuit until the pressure
gauge reads zero.
3. Close the tap (7) and the isolating valve (11).
4. Open the drain cock (9) and air vent (10) (first 9 then 10).
5. Allow the hot water circuit to discharge to the drain.
The drain cock (9) must be at ground level for the
circuittodrainfully.
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