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3.
For the Electrician
Information!
Electrical cables must not touch heating and exhaust pipes, nor must they come in contact with non-
insulated boiler components. They are to be sufficiently braced and provided with a protective tube.
All electrical connections are located in the control panel. The control panel at the front contains the LogWIN main
board while the control panel at the rear contains the connection terminals (screwless spring-type terminals) for
connecting the MESplus control.
3. For the Electrician
3.1 Electrical connections
The boiler and related accessories are designed to be installed only in dry areas (protection type IP 20).
Installation of electrical components may only be performed by a qualified technician. The regulations and speci-
fic
ations of ÖVE, VDE, SEV and local ordinances must be followed.
Attention!
– The phases of the 230 V electrical power supply must be connected correctly, otherwise the blo-
wer might still be live even after the fuse has blown.
– The mains connection must be protected against short circuit with a 13 A delayed-action fuse.
We recommend using fine-wire PVC sheathed cables, e.g., H05VV-F (YMM-J) with a 3 x 1.5 mm
2
nominal crosssection.
The boiler is pre-wired and internally fused with a T 6.3 A fine-wire fuse to protect against short circuit.
By special order, up to 3 MESplus modules (including boiler sensor) will be installed in the control panel and wired
at the factory – Fig. 58. if there are more than 3 modules, they are installed in the wall-mount casing (accessory:
MES 004) and need to be electrically wired on site.
Maximum MESplus module switching capacity: Relay outputs: 230 V AC, 6 A (2 A inductive), 50 Hz
WVF and B-PLM modules with X1/X2 contact:
Solid-state relay: 230 V AC, 1 A
The electrical rating is dependent upon the number of modules installed in the unit, that is, the number of actua-
tors powered (pumps, mixing valves, etc.).
In areas with increased power surge risk (e.g., lightning strikes in regions prone to storms), we recommend ins-
tallation of an appropriate surge protector.
Fig. 58 Control panel LogWIN Klassik
Cladding door switch
Service plug
MESplus module
Control panel
tipped forward
Control panel
Fuse F1 T 6.3 A
