20
Overview of electrical connections
Overview of PCB and connection/wiring diagram
from page 94.
Inserting cables and applying strain relief
Line entry
2.
1.
Fig. 13
■
Secure all cables to the control unit additionally with
cable ties.
■
Seal unnecessary apertures in the control unit base
with cable grommets (not cut out).
Other electrical connections
System examples
For the power supply, see the following chapter.
Power supply
Guidelines
Regulations
Connect the power supply and implement all safety
measures (e.g. RCD circuit) in accordance with
IEC 60364-4-41, the connection requirements of your
local power supply utility, and VDE or national regula-
tions. Protect the power cable to the control unit with a
fuse with a max. rating of 13 A.
Note
Make earthing cable PE longer than the other connect-
ing cables to ensure it will not be pulled off under ten-
sion.
Mains isolator requirements (if necessary)
For combustion equipment to DIN VDE 0116, the
mains isolator installed on site must comply with the
requirements of DIN VDE 0116 "section 6" [or local
regulations]. Fit the mains isolator outside the installa-
tion room; it must be able to isolate
all
non-earthed
conductors simultaneously with at least 3 mm contact
separation.
Recommended power cable
3-core cable selected from the following options:
■
H05VV-F3G 1.5 mm
2
■
H05RN-F3G 1.5 mm
2
1.
Check that the power cable to the control unit is fit-
ted with a fuse with a max. rating of 13 A.
2.
Connect the power cable in the junction box and
the control unit (on site).
Danger
Incorrect core assignment can result in serious
injury and damage to the appliance.
Take care not to interchange wires "L1" and "N":
L1 Brown
N1 Blue
PE Green/yellow
Colour coding to DIN IEC 60757:
BN
Brown
BU
Blue
GNYE Green/yellow
Installation sequence
Electrical connections
(cont.)
5777 985 GB
Installation
