k c a - 영 문
44
Fuse substitution
•
In the event of mains fuse replacement on the PCB, please use a 2A quick blow fuse.
•
Please switch-off the main switch upstream the boiler.
•
Take away the plastic box containing the main PCB.
•
Open the cover of the plastic box.
•
Look and substitute the fuse in the upper side of PCB.
Room thermostat connection
External probe sensor connection
External tank storage thermostat connection
•
The boiler is designed to be connected to a
clean contact of a room thermostat. Please
remove the jump from the terminal block N
°
3 and 4 and connect the cable coming from
the free contact of the room thermostat.
•
The boiler is designed to be connected to
an external probe sensor for external
environmental
temperature
checking.
Please, connect it to the terminal block N
°
5
and 6 as showed in the figure.
•
The boiler is designed to be connected to a
free contact of an external storage tank
thermostat. Please, connect it to the
terminal block N
°
1 and 2 as showed in the
figure.
CAUTION
The voltage of this connection is 230V
Finally squeeze the press cable in the
boiler