Ariston CLAS SYSTEM One Installation And Servicing Manual

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MAINTENANCE GUIDE
3.3 Draining
Tools
TIME
5 min
Turn the drain valve anti-clockwise to open and drain the
water from the boiler
1
3.4 Automatic air vent
Tools
TIME
5 min
Drain the boiler (see 3.3).
Unscrew anticlockwise the AAV from the assembly.
1
2
3.5 Primary water pressure sensor
Tools
TIME
5 min
Drain the boiler (see 3.3).
Slide the xing clip, (it is held captive) unplug the electrical
connector and lift the sensor from the assembly.
1
2

Ariston CLAS SYSTEM One Specifications

General

Fuel Type	Natural Gas / LPG
Mounting	Wall-mounted
ErP Heating Efficiency	A
Modulation	1:7
Heating Output	24 kW
Warranty	2 years