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Firmware V0.5.0
Revision 3
BU-091 - 008TCWE
Water Comfort System · Operating Manual Electronic Temperature Control Unit ELTC-W
2
3
0
V
m
a
x C2
0
A
2
4
V
DC
E
L
S
R
-W
...
Hea
tin
g
T
ape
LED-Operation
230V
Interface
Service-
Port
sensor inputs
Frost
Protection
Boiler
(-)
(+)
supply input B
24VDC
DO NDO Gnd
Gnd F1 Gnd F2
2 A
N-Block
PE-Block
N
N
N
PE PE PE
L(A) L1
L1
L (heating tape)
Com NO
Com NO NC
frost
protection
output
max 16 A
alarm-
output
max 2 A
L(A) = supply voltage controller (ELTC-W)
L1 = supply voltage heating tape
L = heating tape output
Wiring Scheme 3:
Connect separate 24 VDC supply for controller as shown above.
