Caution:
It is not allowed to apply different voltage
than indicated on the rated nameplates to the
heating cable.
If several heating cables were installed, con
-
nect them in parallel, i.e. cables with the same
markings should lead to the same terminals on
the thermostat.
The electrician should mark the cold leads of
each heating circuit and should place a warn-
ing label in the panelboard.
The label is included with the heating cable.
!
Stage 7: Surface finishing
Special care must be taken when using power
tools (such as drills) on the heated surface when
installing the surface finish, so as not to damage
the heating cable.
Sand or concrete surface levelling with sharp
tools or power tools is not allowed as it may per-
manently damage the heating cable.
Note for the System Owner
Make sure the person doing the electrical work has:
• properly completed the Warranty Card,
• labeled the electrical circuit that supplies
the ELEKTRA snow melting system.
Caution:
Provide ground fault equipment protection
(GFEP) for the snow melting system. This may-
be at the circuit breaker or the control.
!
sensor’s wire
heating cable
sensor’s wire
heating cable
Two phase electric circuit
Connection diagram of ETO2-4550 controller
with two ETOG-56T sensors.
Protection of external surfaces - two zones.
two phase
circuit
ET
O
G
-5
6T
+
ET
O
K-
T
ET
O
G
-5
6T
+
ET
O
K-
T
L
brown brown green green
grey pink
yellow white
grey pink yellow white
PE
N
L1
L2
2 pole, coil 120 V
AC contactors
23
