14
.
4.42
Katherm QK nano –
Ultra-small trench heater with EC tangential fan
Ready-to-install convector-based floor trenches
Assembly and installation instructions
10.1 Overview of controls
The unit is available in a series of different electrical versions.
Connect the unit via a terminal strip in the electrical junction box, located on
the side of the unit‘s water connection.
Wire the unit as per the wiring diagram, which is different for each version.
Example of 24 V electromechanical:
44217072211124
Ask a qualified electrician to determine the type of cable and cable cross-
sections: the cable cross sections basically depend on the fuses for the cable
length and the wiring capacity of the electric motors on site.
Lay control lines separately from supply lines.
Use CAT5 (AWG 23) or similar as data cables.
Wire the unit in series: star cabling is not allowed.
Electrical power consumption
Model
Art. no. suffix
24 V electromechanical
_24
230 V electromechanical
_00
KaControl
_C1
Cable length [mm]
900
1100
1400
1600
1800
2000
2100
2300
2600
2700
Control
*24
Power
consumption
[W]
5
6
7
8
12
*00
6
7
8
9
13
*C1
6
7
8
9
13
