Harvia HAFU4502401 Owner's/Operator's Manual page 13

EN
M1 M2 M3
X6 X10 X12
R2
R3
X8 X11 X13
1
K1
ON / OFF
Relay
1
L1
Figure 9. Electrical connections of heater
R2
M6
R1
M5
R3
M4
7
4 1
X1
R1
R4 R5
X4 X5
A2 K2
A1 K1
2 3 4
2 3 4
Gnd
L2
240 V 1ph
9
K2
Serial connection
Relay
6 3
Yellow
1
White
2
Red
3
Control Blue
4
Electronics
Red
5
Green
6
DC
Opto
AC
X14
A1
A2
Mechanical
safety
thermostat
(Manual
reversibility)
Main Switch
ON / OFF
Control panel
ON / OFF
Control panel
Thermo
Couple
Sensor
Toggle
13