Ariston G.C.N: 47-116-51(24kW) Installation And Servicing Instructions page 46

MAINTENANCE GUIDE
MAINTENANCE GUIDE: CLAS HE
3.3 DRAINING
Tools
1
Turn the drain valve anti-clockwise to open and drain the water
from the boiler.
3.4 AUTOMATIC AIR VENT
Tools
1
Drain boiler (see 3.3). Remove the clip and lift the AAV from the
3.5 PRIMARY WATER PRESSURE SENSOR
Tools
1
Drain boiler (see 3.3). Remove the fixing clip, unplug the
electrical connector and lift the sensor from the assembly
Page. 10 of 24
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DRAINING
AUTOMATIC AIR VENT
assembly
PRIMARY WATER PRESSURE SENSOR
Time 5 min
Time 5 min
Time 5 min