Commissioning And Maintenance - Prestige 75 Installation, Operating And Maintenance Instructions

CommISSIoNING AND mAINTENANCE

BoIler maIntenance
prestIge solo 50 - 75
ACV recommends that you have your boiler
inspected, and cleaned, if needed, at least
once a year.
Isolate the appliance before undertaking any work on it, even if you
are simply taking measurements and making adjustments.
- Check that the condensate trap is not clogged, fill it as required
and check for leaks.
- Check that the safety valves are in good working order.
- Bleed the whole system and refill the appliance if needed until it
reaches 1.5 bar.
In the case of repeated fills, contact
your installer.
- Check the boiler's pressure in maximum power mode.
If this value is very different from the original setting, this
deviation may indicate an obstruction in the air intake ducts or
flue gas exhaust pipes, or that the exchanger is clogged.
dIsassemBlIng the Burner
prestIge solo 50 - 75
- Close the gas supply valve.
- Isolate the electric power supply
- Open the front panel of the boiler.
- Disconnect the fan plugs (PWM & 230V), the ignition
cable, the gas valve control and the ignition electrode earth.
- For easier access, you can also remove the boiler's top panel.
- Unscrew the three-piece connection of the gas pipe.
- Using a ratchet wrench, unscrew the burner's 5 nuts.
- Lift the burner, the fan and the gas valve out in one piece and
remove them from the exchanger. Take care not to damage the
burner's insulation, which is inside of the exchanger.
- Check the condition of the insulation and the seals and replace
them if needed, then put the burner back, following the above
procedure in reverse order.
664Y3300
EN • 31