150
L
N
PE
STB PE
STB
N
L
LHS
NHS
1
2
PE
1
2
PE
L
N
PE
1
3
2
1
3
2
L
N
PE
MAX
250VAC/5A
Y1
Y2
PE
N
PE
2
1
STB
HS
Y1
Y2
PE
MAX
250VAC/5A
M 1 ~
M 1 ~
N
N
M 1 ~
N
PE
2
1
N
PE
2
1
N
PE
2
1
Fig. 93
sL
*6
Boiler circuit pump
fÖ
Power supply 230 V, 50 Hz
gÖ
A Central fault message
gF
*6
Ignition
jL
Enable additional heat generator
kS
*6
Motor, heat exchanger cleaning
a-Ö
*6
Motor, flue gas fan
aBÖ
*6
High limit safety cut-out and ON/OFF switch
aBS
Low water indicator
aBD
Water pressure switch
a;A
Buffer cylinder control valve or screw conveyor
motor for ash removal (option)
a;S
*6
Mixer motor, return temperature raising facility
s-Ö
*6
Connection to HKK PCB
Electrical installation
Requirements
The electrical installation should be carried out in
accordance with the wiring diagram. In the vicinity of
hot parts (flue gas fan, flue pipe), cables must be
routed in steel pipes and with appropriate clearances
for temperature protection.
The cable entries for motors and appliances must be
dust-proof and provided with strain relief.
Note
The regulations of the local power supply utility must
be observed.
*6
Internally prewired
Connection and wiring diagram
PCB KSK 2.03
(cont.)
5679249
Appendix