Ariston E-Combi 30 - Hydraulic Unit

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MAINTENANCE GUIDE
3. HYDRAULIC UNIT
MAINTENANCE GUIDE: CLAS HE
3 HYDRAULIC UNIT
3.1 RIGHT HAND HYDRAULIC BLOCK ASSEMBLY
LEGEND
1. Diverter valve motor
2. Diverter valve
3. Auto air vent
4. Primary water pressure switch
5. Pump
6. Central heating filter
7. Not applicable in UK
8. Non-return valve
9. Non-return valve assembly
10. DHW flow switch assembly
11. Central heating return
12. Cold water inlet (DHW)
13. Central heating drain valve
3.2 3 WAY VALVE
3 WAY VALVE UNIT
Tools
Time
5 min
1
Unplug the diverter valve cable
Remove the clip and lift the motor from the
diverter valve body
2
Drain the boiler (see 3.3). Remove the clip and
lift the diverter valve from the assembly
When reassembling, ensure the diverter valve is
aligned correctly
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3.1 RIGHT HAND HYDRAULIC BLOCK ASSEMBLY
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2
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5
4
6
7
8
9
11
12
13
14
10
LEGEND
1. Diverter valve motor
2. Diverter valve
3. Auto air vent
4. Primary water pressure switch
5. Pump
6. Central heating lter
7. Non return valve
8. Non return valve assembly
9. DHW ow switch assembly
10. Drain valve
11. Central heating return
12. Domestic cold water intlet
13. Domestic hot water outlet
14. Central heating ow