Wolf MGK-2-390 Installation Instructions Manual page 28

Connections in the control unit
PE
N
L3
L2
L1
PE
N
L3
L2
L1
X1
5
4
F1
3
2
1
X2
28
18. Electrical connection
UPM PWM
GND
UPM 0-10 V
eBUS
T_DHW (5kNTC cylinder sensor)
T_outside (5kNTC outside temperature sensor)
E2 (5kNTC header sensor = low loss header; alternatively
0-10 V control e.g. 8 V = 80 % heating output)
E1 (programmable input e.g. flue gas damper or room
thermostat)
A1* (programmable output)
LP* (cylinder primary pump)
ZHP (internal wiring of heating circuit pump)
Z1* (230 V output when ON/OFF switch is in the ON position)
Power supply (internal wiring)
* Max. 1.5 A / 345 VA per output, no more than 600 VA in total for
all outputs
Power supply 230 V / 400 V AC 50 Hz
ZHP connection, feed/heating circuit pump
230 V / 400 V AC 50 Hz max. 4 A
External safety circuit (jumper)
Variable speed pump connection (0 - 10 V DC / PWM)
Power cable inlet 230 V or 400 V
Cable inlet 0-10 V
3063772_201507