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Remeha Quinta ACE 90 T-Control Manual

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9.4.7 Checking the non-return valve
1. Disconnect the two fan plugs on the front and rear.
2. Remove the screwed-on plug from the gas control valve.
3. Remove the ignition electrode plug from the ignition transformer.
4. Unscrew the nut of the gas valve unit.
5. Remove the air inlet pipe from the venturi.
6. Unscrew the two fan nuts.
7. Remove the fan together with the gas control valve.
8. Inspect the non-return valve and replace it in the event of a defect or
damage, or if the maintenance kit contains a non-return valve.
9. Reassemble in the reverse order.
Caution
Remember to reconnect the fan plugs.
Tighten the nut on the gas valve unit with a torque of 27.5 N⋅m.
Tighten the two fan nuts with a torque of 3.8 N⋅m.
9.5 Finalising work
1. Fit all removed parts in the reverse order, but do not close the casing
yet.
Caution
During inspection and maintenance operations, always replace all
gaskets on the parts removed.
2. Fill the siphon with water.
3. Put the siphon back in place.
4. Carefully open all system and supply valves which were closed to
carry out the maintenance.
5. Fill the central heating system with water if necessary.
6. Vent the central heating system.
7. Top up with more water if necessary.
8. Check the tightness of the gas and water connections.
9. Put the boiler back into operation.
10. Carry out an auto-detect when a control board has been replaced or
removed from the boiler.
11. Set the boiler to full load and carry out a gas leak detection and a
thorough visual check.
12. Set the boiler to normal operation.
Fig.64 Disconnecting the fan
AD-3001178-02
1
2
3
Fig.65 Removing the gas and air supply
pipes
AD-3001971-01
4
5
Fig.66 Checking the non-return valve
AD-3001181-02
2x
6
8
7
9 Maintenance
54 7684359 - v.11 - 13122021
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Remeha Quinta ACE 90 T-Control Usermanual and installation guide - German - 116 pages

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Remeha Quinta ACE 90 T-Control Usermanual and installation guide - French - 84 pages


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