MAINTENANCE GUIDE Remove the sensor (see 3.5) 3.8 C.H. Filter Tools TIME Drain the boiler (see 3.3). Remove the clip and remove the pressure gauge 5 min 4 1 Remove the AAV (see 3.4) 5 2 Remove the clip and remove the filter 3 6 4 / 58 420011270900 - Rev. 04 - 072024
MAINTENANCE GUIDE 3.9 D.H.W. Flow switch assembly Tools 3.10 LEFT HAND HYDRAULIC BLOCK ASSEMBLY 4 TIME 10 min Drain the boiler (see 3.3). Remove the clip and pull the flow switch assembly upward. 1 2 3 1 Legend: 1 - Safety valve 2 - Central heating flow 3 - Domestic hot water outlet 4 - Secondary heat exchanger 3.11 Secondary heat exchanger Tools Drain primary and domestic hot water circuits. Remove the silencer. TIME 10 min 2 1 Remove the two screws and remove the heat exchanger 2 Installation and servicing instructions / 59
INSTALLATION AND SERVICING INSTRUCT
OVERVIEW These instructions are sui
OVERVIEW SAFETY REGULATION Key to s
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MAINTENANCE GUIDE Remove the sensor (see 3.5) 3.8 C.H. Filter Tools TIME Drain the boiler (see 3.3). Remove the clip and remove the pressure gauge 5 min 4 1 Remove the AAV (see 3.4) 5 2 Remove the clip and remove the filter 3 6 4 / 58 420011270900 - Rev. 04 - 072024
MAINTENANCE GUIDE 3.9 D.H.W. Flow switch assembly Tools 3.10 LEFT HAND HYDRAULIC BLOCK ASSEMBLY 4 TIME 10 min Drain the boiler (see 3.3). Remove the clip and pull the flow switch assembly upward. 1 2 3 1 Legend: 1 - Safety valve 2 - Central heating flow 3 - Domestic hot water outlet 4 - Secondary heat exchanger 3.11 Secondary heat exchanger Tools Drain primary and domestic hot water circuits. Remove the silencer. TIME 10 min 2 1 Remove the two screws and remove the heat exchanger 2 Installation and servicing instructions / 59
INSTALLATION AND SERVICING INSTRUCT
OVERVIEW These instructions are sui
OVERVIEW SAFETY REGULATION Key to s
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