Johnson AURUM R32 M Serie Guide D'utilisation page 119

9.3.4 Controls parts for backup heater (Optional)
4 2
3 1
1-phase 8-16kW with backup heater (1-phase 3kW)
3-phase 12-16kW with backup heater (1-phase 3kW)
Code
Auto thermal protector
1
Manu thermal protector
2
3 Backup heater contactor KM1
4 3
1-phase 4/6kW with backup heater (1-phase 3kW)
Assembly unit
30
2
1
4 2
3 1
1-phase 8-16kW with backup heater (3-phase 9kW)
3-phase 12-16kW with backup heater (3-phase 9kW)
Code Assembly unit
4 Backup heater contactor KM2
5 Backup heater contactor KM3
5
V.1