ATTACK ELECTRIC EASY Series Instructions For Use Manual page 10

Circuit diagram for connection to 3x230/400V
Control unit from face to transformer side.
sensor of
heating water
(NTC)
TER 24V
PE
HV
X1
L1 L2 L3 N
PG21
L1
L2
L3
N
PE
Legend:
NTC - NTC sensor
TER - room thermostat
HT - emergency thermostat
TS - pressure switcher
TUV - service utility water
PE - protective conductor
N - working conductor
L - phase conductor
HV - main switcher
T1 - heating element 1
T2 - heating element 2
T3 -heating element 3
Č - pump
NTC
TER
HT
TS
TUV
PE
N
L
HT TS
N L N PE L1
X2
PE
R1
R2
R3
R4
TMV
1 2 3 N L
green orange
TER.TUV
K1 - contactor
X1 - switch board 1
X2 - switch board 2
PG - bushing
TMV - 3-ways motoric valve
TER TUV - thermostat of service utility water
R1 - relay of heating element 1
R2 - relay of heating element 2
R3 - relay of heating element 3
R4 - relay of the pump
T1
T2
T3
PE
Č
K1
PG9
it is not a part of delivery
10