Buderus Logamatic 4321 - Controls and MEC2 Remote Control; Controls on the Basic Unit

Controls and MEC2 remote control
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Logamatic 4321/4322 - Technical specifications are subject to change without prior notice.
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5 Controls and MEC2 remote control
5.1 Controls on the basic unit
Fig. 4 Logamatic 4321 control panel - controls (standard delivery)
1 Safety temperature limiter
2 Manual boiler thermostat
3 L1, L2 Fuses
4 Connection for external service equipment and MEC2
5 Burner emergency operation switch
6 On/Off switch
Fig. 5 Modules installed
1 Slot 1: e.g. FM442 – heating zone 1, heating zone 2
2 Slot 2: e.g. FM442 – heating zone 3, heating zone 4
A Slot A: ZM434 – boiler loop, burner
B Slot B: MEC2 (CM431) – MEC2 remote control
3 Slot 3: e.g. FM441 – heating zone 5, DHW/recirculation
4 Slot 4: e.g. FM458 – strategy module (for multi-boiler systems)