Hermann Supermicra 23 E - Electrical Diagrams for Supermicra Models

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Regulation and servicing
for the technician
C Pump
CA Ignition and flame control unit
EA Ignition electrode
ER Flame sense electrode
F1 Fuse (2 A)
MOD Modulatore
MP DHW priority pressure switch
PSA Low water pressure switch
(contact NO closed = in pressure)
S NTC sensor
TA Voltage-free Contact for Room
Thermostat or Cronothermostat
(for trade) (safety extra low voltage
SELV)
TF Flue thermostat
TS Safety thermostat
Electric diagram for
SUPERMICRA 23 E - 28 E
EVZ1/2/3… Electrovalve
zone 1/2/3…
AUX1/2/3… Auxiliary
contact
for EVZ1/2/3…
TAZ1/2/3… Room
thermostat
for zone 1/2/3…
Colours
abbreviations:
BK Black
BN Brown
BU Blue
GN Green
GNYE Green-Yellow
GY Grey
OG Orange
RD Red
VT Violet
WH White