
10.4.8 Diverter valve motor
1. Hinge the control box down.
2. Remove the air/gas unit.
See
Air/gas unit, page 58, paragraph 1 to 6 to remove.
3. Undo the screw securing the electrical plug to the motor unit.
Disconnect the plug.
4. Hold the motor in place against the spring pressure of the valve and
removing the securing clip.
5. Remove the motor.
6. When fitting the new motor it will be necessary to hold the unit firmly
while depressing the valve return spring.
7. Reassemble in reverse order.
10.4.9 Diverter valve cartridge
1. Close the flow and return isolation taps.
2. Drain the primary circuit.
3. Hinge the HMI control box down.
4. Remove the air/gas unit.
5. Remove the diverter valve motor.
See
6. Remove the pressure gauge clip and ease the pressure gauge away
from its housing.
Important
It is recommended to completely remove the pressure gauge to
ease the access to the diverter cartridge. Push the plastic
retaining spring clips away and press the gauge out.
7. Remove the clip securing the central heating filter.
8. Grip the central heating filter firmly and pull away. Note the orientation
of the o-ring seal.
9. Remove the diverter valve cartridge clip.
10. Grip the cartridge firmly and pull away from the o-ring seal.
11. Reassemble in reverse order.
10.4.10 Pressure relief valve
Important
It may be necessary to dismantle the PRV pipework.
1. Remove the pipe from the pressure relief valve outlet by gripping
firmly and pulling down.
2. Reassemble in reverse order.
Fig.68
Removing the diverter valve motor
PN-0000537
Fig.69
Removing the diverter cartridge
PN-0000538
Fig.70
Removing the pressure relief valve
PN-0000539
10 Maintenance
64
7696317 - 1 - 21032018
Содержание Combi 200
Страница 81: ...14 Appendix 7696317 1 21032018 81...
Страница 82: ...14 Appendix 82 7696317 1 21032018...