Metal-Fach SD DUO BIO 16, Technical And Operational Documentation

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METAL-FACH Heating Technology
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Wiring diagram - additional module B
Wiring diagram - additional module B, where:
M3 - temperature sensor of controlled circuit (mixer3) CT4,
M4 temperature sensor for regulated circuit (mixer 4) CT4,
RM3 - Mixer room thermostat 3,
RM4 - room thermostat for mixer 4,
FS - fuel level sensor for BU feeder operation,
H2 - voltage input to control the stand-by boiler or to signal alarms, or for the hot water circulation pump,
RELAY - relay,
L N PE - mains supply 230V~,
PM 3/4 - mixer pump 3/4,
SM 3/4 - 3/4 mixer actuator,
BU - fuel feeder from the bunker to the hopper in the boiler,
CPU - control,
A - ecoMAX 860P2-T regulator A module.