MAINTENANCE GUIDE 3.3 Draining 3.5 Primary water pressure sensor Tools TIME Turn the drain valve anti-clockwise to open and drain the water from the boiler 5 min Tools TIME Drain the boiler (see 3.3). Slide the fixing clip, (it is held captive) unplug the electrical connector and lift the sensor from the assembly. 5 min 1 1 3.4 Automatic air vent Tools TIME Drain the boiler (see 3.3). Unscrew anticlockwise the AAV from the assembly. 5 min 2 1 2 / 56 420011270900 - Rev. 04 - 072024
MAINTENANCE GUIDE 3.6 By-pass assembly 3.7 Pump Tools TIME Drain the boiler (see 3.3). Rotate clockvise to unhook the locking ring of the diverter valve. 5 min Tools TIME 10 min Drain the boiler (see 3.3). Remove the clip and the two screws 1 1 Disconnect the pipe and then move the pump to the right to disengage Remove the clip and pull the assembly towards you 2 2 Remove the pump 3 3 Installation and servicing instructions / 57
INSTALLATION AND SERVICING INSTRUCT
OVERVIEW These instructions are sui
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MAINTENANCE GUIDE 3.3 Draining 3.5 Primary water pressure sensor Tools TIME Turn the drain valve anti-clockwise to open and drain the water from the boiler 5 min Tools TIME Drain the boiler (see 3.3). Slide the fixing clip, (it is held captive) unplug the electrical connector and lift the sensor from the assembly. 5 min 1 1 3.4 Automatic air vent Tools TIME Drain the boiler (see 3.3). Unscrew anticlockwise the AAV from the assembly. 5 min 2 1 2 / 56 420011270900 - Rev. 04 - 072024
MAINTENANCE GUIDE 3.6 By-pass assembly 3.7 Pump Tools TIME Drain the boiler (see 3.3). Rotate clockvise to unhook the locking ring of the diverter valve. 5 min Tools TIME 10 min Drain the boiler (see 3.3). Remove the clip and the two screws 1 1 Disconnect the pipe and then move the pump to the right to disengage Remove the clip and pull the assembly towards you 2 2 Remove the pump 3 3 Installation and servicing instructions / 57
INSTALLATION AND SERVICING INSTRUCT
OVERVIEW These instructions are sui
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